CN103219794A - Decoupling control method of multifunctional microprocessor control backup power automatic switch - Google Patents
Decoupling control method of multifunctional microprocessor control backup power automatic switch Download PDFInfo
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- CN103219794A CN103219794A CN2013101466589A CN201310146658A CN103219794A CN 103219794 A CN103219794 A CN 103219794A CN 2013101466589 A CN2013101466589 A CN 2013101466589A CN 201310146658 A CN201310146658 A CN 201310146658A CN 103219794 A CN103219794 A CN 103219794A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The invention belongs to a control technology of an electric power transmission and distribution network and relates to a decoupling control method of multifunctional microprocessor control backup power automatic switch. The decoupling control method of the multifunctional microprocessor control backup power automatic switch basically includes a method of controlling an expansion inner bridging line, a method of controlling inner bridging lines or a single bus segmented connecting line and a method of controlling a single bus connecting line, wherein the method of controlling expansion inner bridging line backup power automatic switch includes the steps of decoupling a standard expansion inner bridging line to two inner bridging lines, and making up a complete backup power automatic switch logic of the expansion inner bridging line under the common effect of control logics of the backup power automatic switch of the two inner bridging lines. The decoupling control method of the multifunctional microprocessor control backup power automatic switch can be applied to control of the backup power automatic switch of dual power supply, wherein the backup power automatic switch is formed by four once main connecting lines, such as the expansion inner bridging lines, the inner bridging lines and the single bus segmented connecting lines and the single bus connecting lines, of a power substation, the movement theory is simple, reliability is high, and the basic theory of the backup power automatic switch can be completely fit.
Description
Technical field
The invention belongs to the control technology of power transmission and distribution network, relate to a kind of multifunctional microcomputer and control the decoupling control method that stand-by power supply drops into automatically.
Background technology
At present, the automatic throw-in equipment of emergency power supply of electric substation's operation common are the automatic throw-in equipment of emergency power supply that main electrical scheme of electric substation is internal bridge, single-trunk segmental wiring and single bus scheme.Main electrical scheme of electric substation is while enlarging internal bridge, electric substation's construction may be divided into several phases construction, so main electrical scheme of electric substation just becomes internal bridge or single bus scheme, but automatic throw-in equipment of emergency power supply will be arranged by an above-mentioned main electrical scheme.Therefore, the automatic throw-in equipment of emergency power supply of the above-mentioned multiple main electrical scheme of proposition adaptation is just necessary.Although proposed a scheme that fairly perfect multifunctional standby power supply drops into automatically in patent of invention CN102403782A " multifunctional microcomputer is controlled the method that stand-by power supply drops into automatically ", but, when it is applicable in main electrical scheme enlarge internal bridge, internal bridge (single-trunk segmental wiring) and single bus scheme available for different connection modes, its logical circuit is still more complicated.
Described expansion internal bridge (see figure 1) refers to: in main electrical scheme of electric substation of transmission and distribution networks, include the two-way power supply, be serially connected with four circuit breakers between the two-way power supply, i.e. the first circuit breaker 1QF, the second circuit breaker 2QF, the 3rd circuit breaker 3QF and the 4th circuit breaker 4QF, also connect respectively three transformers, i.e. the first transformer, the second transformer and the 3rd transformer, this mode of connection comprises two-way electric power incoming line, three step-down transformers, four circuit breakers, wherein two circuit breakers are the electric power incoming line circuit breaker, and another two circuit breakers are the bridge circuit breaker.The line side of electric power incoming line and high voltage side of transformer or low-pressure side all are connected to voltage transformer.
Described internal bridge (see figure 2) refers to: in main electrical scheme of electric substation of transmission and distribution networks, include the two-way power supply, be serially connected with respectively the first circuit breaker 1QF and the 4th circuit breaker 4QF on the two-way power supply, also connect respectively two transformers, i.e. the first transformer and the 3rd transformer (or second transformer), also has a bridge circuit breaker between the two-way power supply, i.e. the second circuit breaker 2QF or the 3rd circuit breaker 3QF, the line side of electric power incoming line and transformer side all are connected to voltage transformer.
Described single-trunk segmental wiring (see figure 3) refers to: in main electrical scheme of electric substation of transmission and distribution networks, include the two-way electric power incoming line, be serially connected with respectively the first circuit breaker 1QF and the 4th circuit breaker 4QF on the two-way electric power incoming line, be connected to again number one bus and No. second bus (or No. three bus), two buses also connect respectively two transformers, i.e. the first transformer and the second transformer (or the 3rd transformer), or be connected with respectively the load outlet, also have a section breaker, i.e. the second circuit breaker 2QF or the 3rd circuit breaker 3QF between two buses; All be connected to voltage transformer on the line side of two-way electric power incoming line and two buses.
Described single bus scheme (see figure 4) refers to: in main electrical scheme of electric substation of transmission and distribution networks, include the two-way electric power incoming line, be serially connected with respectively the first circuit breaker 1QF and the 4th circuit breaker 4QF on the two-way electric power incoming line, be connected to again bus, also connect respectively two transformers on two buses, i.e. the first transformer and the 3rd transformer (or the 3rd transformer), or be connected with respectively the load outlet, all be connected to voltage transformer on the line side of two-way electric power incoming line and bus.
Summary of the invention
Problem to be solved by this invention is, provide that a kind of can be applied to main electrical scheme of transmission and distribution networks 220kV and following electric pressure electric substation be dual power supply comprises the expansion internal bridge, internal bridge, the multifunctional standby power supply automatic throw-in equipment of this main electrical scheme of four kinds of electric substations of single-trunk segmental wiring and single bus scheme, operating principle is simple, reliability is high, what meet basic principle that stand-by power supply automatically drops into fully comprises the expansion internal bridge, internal bridge, the multifunctional microcomputer of this main electrical scheme of four kinds of electric substations of single-trunk segmental wiring and single bus scheme is controlled the decoupling control method that stand-by power supply drops into automatically.
Below provide the technical scheme of the inventive method.
Multifunctional microcomputer of the present invention is controlled the automatic decoupling control method dropped into of stand-by power supply and is comprised the control method of the control method, internal bridge or the single-trunk segmental wiring that enlarge internal bridge, these three kinds of basic control methods of control method of single bus scheme, wherein:
The control method of described expansion internal bridge prepared auto restart is: it is two internal bridges that standard is enlarged to the internal bridge decoupling zero, form first internal bridge and form second internal bridge by the first circuit breaker 1QF, the 3rd circuit breaker 3QF and the 4th circuit breaker 4QF by the first circuit breaker 1QF, the second circuit breaker 2QF and the 4th circuit breaker 4QF, formed the prepared auto restart logic of a complete expansion internal bridge by the control logic circuit acting in conjunction of these two internal bridges prepared auto restart separately; First internal bridge wherein, the control logic circuit of its prepared auto restart is defined as prepared auto restart 1; Second internal bridge, the control logic circuit of its prepared auto restart is defined as prepared auto restart 2;
In the control logic circuit of above-mentioned prepared auto restart, primary connection mode control word is defined: definition prepared auto restart 1 logic stop and start control word is FS1, puts this logic of 1 expression and enables, and sets to 0 and means this logical disablement; Definition prepared auto restart logic 2 stop and start control words are FS2, put this logic of 1 expression and enable, and set to 0 and mean this logical disablement; Defining the logical circuit stop and start control word relevant with the second circuit breaker 2QF is FS3, puts this logic of 1 expression and enables, and sets to 0 and means this logical disablement; Defining the logical circuit stop and start control word relevant with the 3rd circuit breaker 3QF is FS4, puts this logic of 1 expression and enables, and sets to 0 and means this logical disablement;
The primary connection mode is that while enlarging internal bridge, above-mentioned control word FS1 and FS2 put 1, and FS3 and FS4 put 1;
The tripping operation control and the combined floodgate control method that enlarge internal bridge prepared auto restart respective circuit breakers are:
A. the tripping operation of the first circuit breaker 1QF is controlled
Prepared auto restart 1 or prepared auto restart 2: when the first circuit breaker 1QF source current 1I1 is less than the trip inspection no flow setpoint, the first circuit breaker 1QF supply voltage 1U1 is less than trip inspection with no pressure definite value, the 4th circuit breaker 4QF supply voltage 4U1 is greater than trip inspection has compression set value (trip inspection has pressure-controlled word KG1 to put 1) and the first circuit breaker 1QF manually to control the two-position relay 1KKJ (prepared auto restart 1 logic stop and start put 1 with control word FS1 or prepared auto restart 2 logic stop and start with control word FS2) when these conditions of rear position of closing a floodgate meet simultaneously of circuit breaker 1KK or its deciliter state, through certain time delay tT1, to the first circuit breaker 1QF tripping operation control loop output pulse control signal, make the first circuit breaker 1QF tripping operation, export in-put of spare power supply tripping operation actuating signal simultaneously.
B. the tripping operation of the 4th circuit breaker 4QF is controlled
Prepared auto restart 1 or prepared auto restart 2: when the 4th circuit breaker 4QF source current 4I1 is less than the trip inspection no flow setpoint, the 4th circuit breaker 4QF supply voltage 4U1 is less than trip inspection with no pressure definite value, the first circuit breaker 1QF supply voltage 1U1 is greater than trip inspection has compression set value (trip inspection has pressure-controlled word KG1 to put 1) and the 4th circuit breaker 4QF manually to control the two-position relay 4KKJ (prepared auto restart 1 logic stop and start put 1 with control word FS1 or prepared auto restart 2 logic stop and start with control word FS2) when these conditions of rear position of closing a floodgate meet simultaneously of circuit breaker 4KK or its deciliter state, through certain time delay tT4, to the 4th circuit breaker 4QF tripping operation control loop output pulse control signal, make the 4th circuit breaker 4QF tripping operation, export in-put of spare power supply tripping operation actuating signal simultaneously.
C. the first circuit breaker 1QF closes a floodgate and discharges and recharges control
The C-1 discharging condition
Prepared auto restart 1 discharging condition 1
(1) when two-position relay 1KKJ position after closing a floodgate of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(2) when two-position relay 4KKJ position after separating brake of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(3) primary connection mode control word FS1 is 0;
(4) when the first tranformer protection action;
(5) send the combined floodgate control command as the first circuit breaker 1QF;
Prepared auto restart 1 discharging condition 2
(1) when two-position relay 1KKJ position after closing a floodgate of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(2) when two-position relay 2KKJ position after separating brake of hand control switch 2KK or its deciliter state of the second circuit breaker 2QF;
(3) primary connection mode control word FS1 is 0;
(4) when the first tranformer protection action;
(5) send the combined floodgate control command as the first circuit breaker 1QF;
Prepared auto restart 2 discharging conditions 1
(1) when two-position relay 1KKJ position after closing a floodgate of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(2) when two-position relay 4KKJ position after separating brake of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(3) primary connection mode control word FS2 is 0;
(4) when the first tranformer protection action;
(5) send the combined floodgate control command as the first circuit breaker 1QF;
Prepared auto restart 2 discharging conditions 2
(1) when two-position relay 1KKJ position after closing a floodgate of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(2) when two-position relay 3KKJ position after separating brake of hand control switch 3KK or its deciliter state of the 3rd circuit breaker 3QF;
(3) primary connection mode control word FS2 is 0;
(4) when the first tranformer protection action;
(5) send the combined floodgate control command as the first circuit breaker 1QF;
The C-2 charge condition
Prepared auto restart 1 charge condition 1
(1) when two-position relay 4KKJ position after closing a floodgate of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(2) when two-position relay 1KKJ position after separating brake of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(3) as the open position relay 1TWJ of the first circuit breaker 1QF in operate condition;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the first circuit breaker 1QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 1Tcd1, can be made as 20 seconds).
Prepared auto restart 1 charge condition 2
(1) when two-position relay 2KKJ position after closing a floodgate of the second circuit breaker 2QF hand control switch 2KK or its deciliter state;
(2) when two-position relay 1KKJ position after separating brake of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(3) as the open position relay 1TWJ of the first circuit breaker 1QF in operate condition;
(4) primary connection mode control word FS3 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the first circuit breaker 1QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 1Tcd2, can be made as 20 seconds).
Prepared auto restart 2 charge conditions 1
(1) when two-position relay 4KKJ position after closing a floodgate of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(2) when two-position relay 1KKJ position after separating brake of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(3) as the open position relay 1TWJ of the first circuit breaker 1QF in operate condition;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the first circuit breaker 1QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 1Tcd3, can be made as 20 seconds).
Prepared auto restart 2 charge conditions 2
(1) when two-position relay 3KKJ position after closing a floodgate of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state;
(2) when two-position relay 1KKJ position after separating brake of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(3) as the open position relay 1TWJ of the first circuit breaker 1QF in operate condition;
(4) primary connection mode control word FS4 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the first circuit breaker 1QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 1Tcd4, can be made as 20 seconds).
D. the first circuit breaker 1QF closes a floodgate and controls
D-1 prepared auto restart 1 first circuit breaker 1QF closes a floodgate and controls one
(1) when the first circuit breaker 1QF be open position originally, and really tripping of the 4th circuit breaker 4QF has been sent and checked to the 4th circuit breaker 4QF tripping operation control command; Or be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the first transformer side voltage, simultaneously the two-position relay 4KKJ of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state in close a floodgate rear position and the 4th circuit breaker 4QF in open position (the 4th circuit breaker 4QF position is not corresponding);
(2) 1Tcd1 charging delay time arrives;
(3) first tranformer protections are action not;
When above condition meets, output pulse control signal to the first circuit breaker 1QF combined floodgate control loop after time delay (delay time is tH1), the first circuit breaker 1QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
D-2 prepared auto restart 1 first circuit breaker 1QF closes a floodgate and controls two
(1) when being less than to close a floodgate, the first transformer side voltage examines with no pressure definite value (when the inspection with no pressure control word KG2 that closes a floodgate is 1), simultaneously the two-position relay 2KKJ of the second circuit breaker 2QF hand control switch 2KK or its deciliter state in close a floodgate rear position and the second circuit breaker 2QF in open position (the second circuit breaker 2QF position is not corresponding, and the while, primary connection mode control word FS3 was set to 1);
(2) 1Tcd2 charging delay time arrives;
(3) first tranformer protections are action not;
When above condition meets, output pulse control signal to the first circuit breaker 1QF combined floodgate control loop after time delay (delay time is tH1), the first circuit breaker 1QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
D-3 prepared auto restart 2 first circuit breaker 1QF close a floodgate and control one
(1) when the first circuit breaker 1QF be open position originally, and really tripping of the 4th circuit breaker 4QF has been sent and checked to the 4th circuit breaker 4QF tripping operation control command; Or be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the first transformer side voltage, simultaneously the two-position relay 4KKJ of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state in close a floodgate rear position and the 4th circuit breaker 4QF in open position (the 4th circuit breaker 4QF position is not corresponding);
(2) 1Tcd3 charging delay time arrives;
(3) first tranformer protections are action not;
When above condition meets, output pulse control signal to the first circuit breaker 1QF combined floodgate control loop after time delay (delay time is tH1), the first circuit breaker 1QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
D-2 prepared auto restart 2 first circuit breaker 1QF close a floodgate and control two
(1) be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the first transformer side voltage, simultaneously the two-position relay 3KKJ of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state in close a floodgate rear position and the 3rd circuit breaker 3QF in open position (the 3rd circuit breaker 3QF position is not corresponding);
(2) 1Tcd4 charging delay time arrives;
(3) first tranformer protections are action not;
When above condition meets, output pulse control signal to the first circuit breaker 1QF combined floodgate control loop after time delay (delay time is tH1), the first circuit breaker 1QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
E. the second circuit breaker 2QF closes a floodgate and discharges and recharges control
The E-1 discharging condition
(1) when two-position relay 2KKJ position after closing a floodgate of hand control switch 2KK or its deciliter state of the second circuit breaker 2QF;
(2) when two-position relay 4KKJ position after separating brake of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(3) primary connection mode control word FS1 is 0;
(4) when the second tranformer protection action;
(5) send the combined floodgate control command as the second circuit breaker 2QF;
(1) when two-position relay 2KKJ position after closing a floodgate of hand control switch 2KK or its deciliter state of the second circuit breaker 2QF;
(2) when two-position relay 1KKJ position after separating brake of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(3) primary connection mode control word FS1 is 0;
(4) when the first tranformer protection action;
(5) send the combined floodgate control command as the second circuit breaker 2QF;
The E-2 charge condition
(1) when two-position relay 4KKJ position after closing a floodgate of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(2) when two-position relay 2KKJ position after separating brake of the second circuit breaker 2QF hand control switch 2KK or its deciliter state;
(3) as the open position relay 2TWJ of the second circuit breaker 2QF in operate condition;
(4) primary connection mode control word FS3 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the second circuit breaker 2QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 2Tcd1, can be made as 20 seconds).
(1) when two-position relay 1KKJ position after closing a floodgate of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(2) when two-position relay 2KKJ position after separating brake of the second circuit breaker 2QF hand control switch 2KK or its deciliter state;
(3) as the open position relay 2TWJ of the second circuit breaker 2QF in operate condition;
(4) primary connection mode control word FS3 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the second circuit breaker 2QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 2Tcd2, can be made as 20 seconds).
F. the second circuit breaker 2QF closes a floodgate and controls
F-1 prepared auto restart 1 second circuit breaker 2QF closes a floodgate and controls one
(1) when the second circuit breaker 2QF be open position originally, and send and check really tripping of the 4th circuit breaker 4QF when the 4th circuit breaker 4QF tripping operation control command; Or be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the second transformer side voltage, simultaneously the two-position relay 4KKJ of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state in close a floodgate rear position and the two-position relay 3KKJ of the 4th circuit breaker 4QF in open position (the 4th circuit breaker 4QF position is not corresponding) or while the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state in close a floodgate rear position and the 3rd circuit breaker 3QF in open position (the 3rd circuit breaker 3QF position is not corresponding);
(2) 2Tcd1 charging delay time arrives;
(3) second tranformer protections are action not;
When above condition meets, output pulse control signal to the second circuit breaker 2QF combined floodgate control loop after time delay (delay time is tH2), the second circuit breaker 2QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
F-2 prepared auto restart 1 second circuit breaker 2QF closes a floodgate and controls two
(1) when the second circuit breaker 2QF be open position originally, and really tripping of the first circuit breaker 1QF has been sent and checked to the first circuit breaker 1QF tripping operation control command; Or be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the first transformer side voltage, simultaneously the two-position relay 1KKJ of the first circuit breaker 1QF hand control switch 1KK or its deciliter state in close a floodgate rear position and the first circuit breaker 1QF in open position (the first circuit breaker 1QF position is not corresponding);
(2) 2Tcd2 charging delay time arrives;
(3) first tranformer protections are action not;
When above condition meets, output pulse control signal to the second circuit breaker 2QF combined floodgate control loop after time delay (delay time is tH2), the second circuit breaker 2QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
G. the 3rd circuit breaker 3QF closes a floodgate and discharges and recharges control
The G-1 discharging condition
(1) when two-position relay 3KKJ position after closing a floodgate of hand control switch 3KK or its deciliter state of the 3rd circuit breaker 3QF;
(2) when two-position relay 4KKJ position after separating brake of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(3) primary connection mode control word FS2 is 0;
(4) when the 3rd tranformer protection action;
(5) send the combined floodgate control command as the 3rd circuit breaker 3QF;
(1) when two-position relay 3KKJ position after closing a floodgate of hand control switch 3KK or its deciliter state of the 3rd circuit breaker 3QF;
(2) when two-position relay 1KKJ position after separating brake of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(3) primary connection mode control word FS2 is 0;
(4) when the second tranformer protection action;
(5) send the combined floodgate control command as the 3rd circuit breaker 3QF;
The G-2 charge condition
(1) when two-position relay 4KKJ position after closing a floodgate of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(2) when two-position relay 3KKJ position after separating brake of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state;
(3) as the open position relay 3TWJ of the 3rd circuit breaker 3QF in operate condition;
(4) primary connection mode control word FS4 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the 3rd circuit breaker 3QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 3Tcd1, can be made as 20 seconds).
(1) when two-position relay 1KKJ position after closing a floodgate of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(2) when two-position relay 3KKJ position after separating brake of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state;
(3) as the open position relay 3TWJ of the 3rd circuit breaker 3QF in operate condition;
(4) primary connection mode control word FS4 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the second circuit breaker 2QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 3Tcd2, can be made as 20 seconds).
H. the 3rd circuit breaker 3QF closes a floodgate and controls
H-1 prepared auto restart 2 the 3rd circuit breaker 3QF closes a floodgate and controls one
(1) when the 3rd circuit breaker 3QF be open position originally, and really tripping of the 4th circuit breaker 4QF has been sent and checked to the 4th circuit breaker 4QF tripping operation control command; Or be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the 3rd transformer side voltage, simultaneously the two-position relay 4KKJ of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state in close a floodgate rear position and the 4th circuit breaker 4QF in open position (the 4th circuit breaker 4QF position is not corresponding);
(2) 3Tcd1 charging delay time arrives;
(3) the 3rd tranformer protections are action not;
When above condition meets, output pulse control signal to the three circuit breaker 3QF combined floodgate control loops after time delay (delay time is tH3), the 3rd circuit breaker 3QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
H-2 prepared auto restart 2 the 3rd circuit breaker 3QF closes a floodgate and controls two
(1) when the 3rd circuit breaker 3QF be open position originally, and really tripping of the first circuit breaker 1QF has been sent and checked to the first circuit breaker 1QF tripping operation control command; Or be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the second transformer side voltage, simultaneously the two-position relay 1KKJ of the first circuit breaker 1QF hand control switch 1KK or its deciliter state in close a floodgate rear position and the two-position relay 2KKJ of the first circuit breaker 1QF in open position (the first circuit breaker 1QF position is not corresponding) or the second circuit breaker 2QF hand control switch 2KK or its deciliter state in close a floodgate rear position and the second circuit breaker 2QF in open position (the second circuit breaker 2QF position is not corresponding);
(2) 3Tcd2 charging delay time arrives;
(3) second tranformer protections are action not;
When above condition meets, output pulse control signal to the three circuit breaker 3QF combined floodgate control loops after time delay (delay time is tH3), the 3rd circuit breaker 3QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
I.4QF breaker closing discharges and recharges control
The I-1 discharging condition
(1) when two-position relay 4KKJ position after closing a floodgate of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(2) when two-position relay 1KKJ position after separating brake of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(3) primary connection mode control word FS1 is 0;
(4) when the 3rd tranformer protection action;
(5) send the combined floodgate control command as the 4th circuit breaker 4QF;
(1) when two-position relay 4KKJ position after closing a floodgate of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(2) when two-position relay 2KKJ position after separating brake of hand control switch 2KK or its deciliter state of the second circuit breaker 2QF;
(3) primary connection mode control word FS1 is 0;
(4) when the 3rd tranformer protection action;
(5) send the combined floodgate control command as the 4th circuit breaker 4QF;
(1) when two-position relay 4KKJ position after closing a floodgate of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(2) when two-position relay 1KKJ position after separating brake of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(3) primary connection mode control word FS2 is 0;
(4) when the 3rd tranformer protection action;
(5) send the combined floodgate control command as the 4th circuit breaker 4QF;
(1) when two-position relay 4KKJ position after closing a floodgate of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(2) when two-position relay 3KKJ position after separating brake of hand control switch 3KK or its deciliter state of the 3rd circuit breaker 3QF;
(3) primary connection mode control word FS2 is 0;
(4) when the 3rd tranformer protection action;
(5) send the combined floodgate control command as the 4th circuit breaker 4QF;
The I-2 charge condition
(1) when two-position relay 1KKJ position after closing a floodgate of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(2) when two-position relay 4KKJ position after separating brake of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(3) as the open position relay 4TWJ of the 4th circuit breaker 4QF in operate condition;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the 4th circuit breaker 4QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 4Tcd1, can be made as 20 seconds).
(1) when two-position relay 2KKJ position after closing a floodgate of the second circuit breaker 2QF hand control switch 2KK or its deciliter state;
(2) when two-position relay 4KKJ position after separating brake of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(3) as the open position relay 4TWJ of the 4th circuit breaker 4QF in operate condition;
(4) primary connection mode control word FS3 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the 4th circuit breaker 4QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 4Tcd2, can be made as 20 seconds).
(1) when two-position relay 1KKJ position after closing a floodgate of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(2) when two-position relay 4KKJ position after separating brake of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(3) as the open position relay 4TWJ of the 4th circuit breaker 4QF in operate condition;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, complete the charging of closing a floodgate as the 4th circuit breaker 4QF and control after charging time delay (delay time is 4Tcd3, can be made as 20 seconds).
(1) when two-position relay 3KKJ position after closing a floodgate of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state;
(2) when two-position relay 4KKJ position after separating brake of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(3) as the open position relay 4TWJ of the 4th circuit breaker 4QF in operate condition;
(4) primary connection mode control word FS4 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the 4th circuit breaker 4QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 4Tcd4, can be made as 20 seconds).
J. the 4th circuit breaker 4QF closes a floodgate and controls
J-1 prepared auto restart 1 the 4th circuit breaker 4QF closes a floodgate and controls one
(1) when the 4th circuit breaker 4QF be open position originally, and really tripping of the first circuit breaker 1QF has been sent and checked to the first circuit breaker 1QF tripping operation control command; Or be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the 3rd transformer side voltage, simultaneously the two-position relay 1KKJ of the first circuit breaker 1QF hand control switch 1KK or its deciliter state in close a floodgate rear position and the first circuit breaker 1QF in open position (the first circuit breaker 1QF position is not corresponding);
(2) 4Tcd1 charging delay time arrives;
(3) the 3rd tranformer protections are action not;
When above condition meets, output pulse control signal to the four breaker closing control loops after time delay (delay time is tH4), the 4th circuit breaker 4QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
J-2 prepared auto restart 1 the 4th circuit breaker 4QF closes a floodgate and controls two
(1) be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the 3rd transformer side voltage, simultaneously the two-position relay 2KKJ of the second circuit breaker 2QF hand control switch 2KK or its deciliter state in close a floodgate rear position and the second circuit breaker 2QF in open position (the second circuit breaker 2QF position is not corresponding);
(2) 4Tcd2 charging delay time arrives;
(3) the 3rd tranformer protections are action not;
When above condition meets, output pulse control signal to the four circuit breaker 4QF combined floodgate control loops after time delay (delay time is tH4), the 4th circuit breaker 4QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
J-3 prepared auto restart 2 the 4th circuit breaker 4QF closes a floodgate and controls one
(1) when the 4th circuit breaker 4QF be open position originally, and really tripping of the first circuit breaker 1QF has been sent and checked to the first circuit breaker 1QF tripping operation control command; Or be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the 3rd transformer side voltage, simultaneously the two-position relay 1KKJ of the first circuit breaker 1QF hand control switch 1KK or its deciliter state in close a floodgate rear position and the first circuit breaker 1QF in open position (the first circuit breaker 1QF position is not corresponding);
(2) 4Tcd3 charging delay time arrives;
(3) the 3rd tranformer protections are action not;
When above condition meets, output pulse control signal to the four circuit breaker 4QF combined floodgate control loops after time delay (delay time is tH4), the 4th circuit breaker 4QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
J-4 prepared auto restart 2 the 4th circuit breaker 4QF closes a floodgate and controls two
(1) be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the 3rd transformer side voltage, simultaneously the two-position relay 3KKJ of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state in close a floodgate rear position and the 3rd circuit breaker 3QF in open position (the 3rd circuit breaker 3QF position is not corresponding);
(2) 4Tcd4 charging delay time arrives;
(3) the 3rd tranformer protections are action not;
When above condition meets, output pulse control signal to the four circuit breaker 4QF combined floodgate control loops after time delay (delay time is tH4), the 4th circuit breaker 4QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously.
K. abnormal signal is controlled
K-1 prepared auto restart 1 abnormal signal is controlled
(1) be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the first transformer side or the second transformer side or the 3rd transformer side voltage, send abnormal signal after certain time-delay;
(2) do not send the tripping operation control command as the first circuit breaker 1QF, and the first circuit breaker 1QF source current 1I1 is less than trip inspection no flow setpoint or the first two-position relay 1KKJ that circuit breaker 1QF supply voltage 1U1 is less than trip inspection with no pressure definite value and the first circuit breaker 1QF manually controls circuit breaker 1KK or its deciliter state when closing a floodgate rear position, sends abnormal signal after certain time-delay;
(3) do not send the tripping operation control command as the 4th circuit breaker 4QF, and the 4th circuit breaker 4QF source current 4I1 is less than trip inspection no flow setpoint or the 4th two-position relay 4KKJ that circuit breaker 4QF supply voltage 4U1 is less than trip inspection with no pressure definite value and the 4th circuit breaker 4QF manually controls circuit breaker 4KK or its deciliter state when closing a floodgate rear position, sends abnormal signal after certain time-delay.
K-2 prepared auto restart 2 abnormal signals are controlled
(1) be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the first transformer side or the second transformer side or the 3rd transformer side voltage, send abnormal signal after certain time-delay;
(2) do not send the tripping operation control command as the first circuit breaker 1QF, and the first circuit breaker 1QF source current 1I1 is less than trip inspection no flow setpoint or the first two-position relay 1KKJ that circuit breaker 1QF supply voltage 1U1 is less than trip inspection with no pressure definite value and the first circuit breaker 1QF manually controls circuit breaker 1KK or its deciliter state when closing a floodgate rear position, sends abnormal signal after certain time-delay;
(3) do not send the tripping operation control command as the 4th circuit breaker 4QF, and the 4th circuit breaker 4QF source current 4I1 is less than trip inspection no flow setpoint or the 4th two-position relay 4KKJ that circuit breaker 4QF supply voltage 4U1 is less than trip inspection with no pressure definite value and the 4th circuit breaker 4QF manually controls circuit breaker 4KK or its deciliter state when closing a floodgate rear position, sends abnormal signal after certain time-delay.
The control method of described internal bridge or single-trunk segmental wiring prepared auto restart is: when operational mode is internal bridge or during for single-trunk segmental wiring, on the control logic circuit basis of above-mentioned expansion internal bridge, by the control word FS1 of primary connection mode put 1 and FS2 set to 0, simultaneously FS3 put 1 and FS4 set to 0; Perhaps the control word FS1 of primary connection mode is set to 0 with FS2 and puts 1, FS3 sets to 0 with FS4 and puts 1 simultaneously;
When " primary connection mode control word " FS1 put 1 and FS2 set to 0, and FS3 puts 1 and FS4 while setting to 0 (being prepared auto restart 1 logic), in enlarging, in main electrical scheme of bridge, only have the first circuit breaker 1QF, the second circuit breaker 2QF(the 3rd circuit breaker 3QF position to be communicated with on electric), the 4th circuit breaker 4QF and the first transformer, the 3rd transformer (or second transformer).Due to FS1 put 1 and FS2 set to 0, and FS3 put 1 and FS4 set to 0, therefore the logic relevant with prepared auto restart 2 is ineffective, the logic of the combined floodgate of the 3rd circuit breaker 3QF can not be charged and the recharge logic loop locking relevant with the 3rd circuit breaker 3QF and ineffective.When an operational mode is internal bridge, 1BCJ is that the first tranformer protection, 3BCJ and 2BCJ are the 3rd tranformer protection (or second tranformer protection); When an operational mode is single-trunk segmental wiring, 1BCJ is that first paragraph bus protection or inlet wire 1 protection, 3BCJ and 2BCJ are second segment bus protection (or the 3rd section bus protection) or inlet wire 2 protections.
When " primary connection mode control word ", FS1 sets to 0 with FS2 and puts 1, and FS3 sets to 0, to put 1(with FS4 be prepared auto restart 2 logics) time, in enlarging, in main electrical scheme of bridge, only have the first circuit breaker 1QF, the 3rd circuit breaker 3QF(the second circuit breaker 2QF position to be communicated with on electric), the 4th circuit breaker 4QF and the first transformer (or second transformer), the 3rd transformer.Put 1 because FS1 sets to 0 with FS2, and FS3 sets to 0 and put 1 with FS4, therefore the logic relevant with prepared auto restart 1 is ineffective, the logic of the combined floodgate of the second circuit breaker 2QF can not be charged and the recharge logic loop locking relevant with the second circuit breaker 2QF and ineffective.When an operational mode is internal bridge, 1BCJ and 2BCJ are that the first tranformer protection (or second tranformer protection), 3BCJ are the 3rd tranformer protection; When an operational mode is single-trunk segmental wiring, 1BCJ and 2BCJ are that first paragraph (or second segment) bus protection or inlet wire 1 are protected, 3BCJ is the 3rd section bus protection or inlet wire 2 protections.
Internal bridge or single-trunk segmental wiring control method are on the control method basis of above-mentioned expansion internal bridge, by with the 3rd circuit breaker 3QF(or the second circuit breaker 2QF) relevant recharge logic loop locking.
The control method of described single bus scheme is: when an operational mode is single bus scheme, on the control logic logical circuit basis of above-mentioned expansion internal bridge, by the control word FS1 of primary connection mode put 1 and FS2 set to 0, simultaneously control word FS3 sets to 0 with FS4 and sets to 0; Perhaps the control word FS1 of primary connection mode is set to 0 with FS2 and puts 1, control word FS3 sets to 0 with FS4 and sets to 0 simultaneously.The bus protection that 1BCJ, 3BCJ are single busbar connection (or tap into respectively line 1 protection and tap into line 2 protections).Due to FS1 put 1 and FS2 set to 0, and FS3 sets to 0 and sets to 0 with FS4, be that (or FS1 sets to 0 with FS2 and puts 1 prepared auto restart 1 logic, and FS3 sets to 0 and sets to 0 with FS4, be prepared auto restart 2 logics), therefore the logic of the combined floodgate of the second circuit breaker 2QF, the 3rd circuit breaker 3QF can not be charged and the recharge logic loop locking relevant with the second circuit breaker 2QF, the 3rd circuit breaker 3QF and ineffective.
The single bus scheme control method is on the control method basis of above-mentioned expansion internal bridge, by the recharge logic loop locking relevant with the second circuit breaker 2QF with the 3rd circuit breaker 3QF.
The advantage of this programme
The method that microcomputer control standby power of the present invention drops into automatically meets the basic principle that stand-by power supply drops into automatically fully, with the method for using in existing microcomputer type automatic throw-in equipment of emergency power supply, compares, and has following advantage:
1. the main electrical scheme of electric substation that has adopted the control logic acting in conjunction of the prepared auto restart of two interior bridge switch to complete and adapted to applied transmission and distribution networks comprises the technical scheme of the automatic throw-in equipment of emergency power supply of a main electrical scheme of four kinds of electric substations that enlarges internal bridge, internal bridge, single-trunk segmental wiring and single bus scheme.
2. adopt the circuit breaker by power supply (or losing power supply) to complete the charging and discharging circuit control program, there is equally while combined floodgate inspection with no pressure advantage easily;
3. adopt equally the not corresponding startup loop of similar reclosing, start one of loop as prepared auto restart, there is clear and definite, simple, the reliable advantage of operating criterion, and can correct the circuit breaker jump, the correction loop of the circuit breaker jump of need not separately setting up defences, thereby each circuit breaker jump problem, particularly bridge circuit breaker jump problem have been solved;
4. start the prepared auto restart closing circuit when having adopted by the loop start power supply circuit breaker trip that checks the power supply dead electricity, start two of loop as prepared auto restart, can be used as not corresponding startup loop and start supplementing of loop as prepared auto restart, make the startup of prepared auto restart more reliable;
5. check with no pressure scheme (also can adopt while closing a floodgate the scheme same period that checks, only need go out to add that this function get final product in this logic) while having adopted combined floodgate, solved when the electric substation moved and when local power plant is arranged, prevented the problem of non-Switching Synchronization;
6. adopt the scheme of the corresponding main transformer breaker closing of any platform main transformer protection action blocking, prevented from causing full institute of this electric substation dead electricity.
The accompanying drawing explanation
Fig. 1 is main wiring diagram of bridge in electric substation enlarges;
Fig. 2 is main wiring diagram of bridge in electric substation;
Fig. 3 is main wiring diagram of electric substation's sectionalized single busbar connection;
Fig. 4 is main wiring diagram of electric substation's single busbar connection;
Fig. 5 is that the inventive method embodiment is for bridge prepared auto restart 1 theory diagram in the decoupling zero of multi-functional prepared auto restart;
Fig. 6 is that the inventive method embodiment is for bridge prepared auto restart 2 theory diagrams in the decoupling zero of multi-functional prepared auto restart.
Embodiment
Control word in Fig. 5, Fig. 6 is described as follows:
| The control word title | Control word is 1 o'clock | Control word is 0 o'clock |
| Trip inspection has pressure-controlled word KG1 | Trip inspection has compression functions to drop into | Trip inspection has compression functions to exit |
| The inspection with no pressure of closing a floodgate control word KG2 | The inspection of closing a floodgate drops into without compression functions | The inspection of closing a floodgate is exited without compression functions |
FS1 in Fig. 5, Fig. 6, FS2, FS3, FS4 control word and primary connection mode relation are as follows:
| The control word title | FS1 | FS2 | FS3 | FS4 |
| Enlarge |
1 | 1 | 1 | 1 |
| Internal bridge or single-trunk segmental wiring | 1(or 0) | 0(or 1) | 1(or 0) | 0(or 1) |
| Single bus scheme | 1(or 0) | 0(or 1) | 0 | 0 |
In Fig. 5, Fig. 6, letter is described as follows:
<1U1-means that the first circuit breaker 1QF supply voltage is less than trip inspection with no pressure definite value, i.e. the first circuit breaker 1QF power supply with no pressure;
<4U1-means that the 4th circuit breaker 4QF supply voltage is less than trip inspection with no pressure definite value, i.e. the 4th circuit breaker 4QF power supply with no pressure;
1U1-means that the first circuit breaker 1QF supply voltage is greater than trip inspection the compression set value is arranged, the first circuit breaker 1QF power supply has pressure;
4U1-means that the 4th circuit breaker 4QF supply voltage is greater than trip inspection the compression set value is arranged, the 4th circuit breaker 4QF power supply has pressure;
<1I1-means that the first circuit breaker 1QF source current is less than the trip inspection no flow setpoint, and the first circuit breaker 1QF power supply is without stream;
<4I1-means that the 4th circuit breaker 4QF source current is less than the trip inspection no flow setpoint, and the 4th circuit breaker 4QF power supply is without stream;
<1U2-means that the first high voltage side of transformer or low-pressure side bus voltage are less than the inspection with no pressure definite value of closing a floodgate;
<2U2-means that the second high voltage side of transformer or low-pressure side bus voltage are less than the inspection with no pressure definite value of closing a floodgate;
<3U2-means that the 3rd high voltage side of transformer or low-pressure side bus voltage are less than the inspection with no pressure definite value of closing a floodgate;
1KKJ-means that the first circuit breaker 1QF manually controls the two-position relay of circuit breaker 1KK or its deciliter state in the rear position of closing a floodgate;
2KKJ-means that the second circuit breaker 2QF manually controls the two-position relay of circuit breaker 2KK or its deciliter state in the rear position of closing a floodgate;
3KKJ-means that the 3rd circuit breaker 3QF manually controls the two-position relay of circuit breaker 3KK or its deciliter state in the rear position of closing a floodgate;
4KKJ-means that the 4th circuit breaker 4QF manually controls the two-position relay of circuit breaker 4KK or its deciliter state in the rear position of closing a floodgate;
1TWJ-means that the first circuit breaker 1QF is in open position;
2TWJ-means that the second circuit breaker 2QF is in open position;
3TWJ-means that the 3rd circuit breaker 3QF is in open position;
4TWJ-means that the 4th circuit breaker 4QF is in open position;
1BCJ-means the first tranformer protection action;
2BCJ-means the second tranformer protection action;
3BCJ-means the 3rd main transformer protection action;
In Fig. 5,6, symbol description is as follows:
-expression charging delay time;
-mean the second circuit breaker 2QF trip(ping) circuit;
-mean the 3rd circuit breaker 3QF closing circuit;
-expression abnormal signal;
Enlarge internal bridge prepared auto restart specific embodiment:
As shown in Figure 1, the expansion internal bridge of the dual power supply that main electrical scheme of the electric substation in the applied transmission and distribution networks of method of the present invention is standard, include the two-way power supply, be serially connected with respectively the first circuit breaker 1QF, the second circuit breaker 2QF, the 3rd circuit breaker 3QF and the 4th circuit breaker 4QF on the two-way power supply, also connect respectively three transformers (i.e. the first transformer, the second transformer and the 3rd transformer), the line side of electric power incoming line and high voltage side of transformer or low-pressure side all are connected to voltage transformer.Be two-way electric power incoming line, three step-down transformers, four circuit breakers.
In prepared auto restart control logic Fig. 5, Fig. 6, operational mode control word FS1 and FS2 put 1, and operational mode control word FS3 and FS4 put 1.1BCJ is that the first tranformer protection, 2BCJ are that the second tranformer protection, 3BCJ are the 3rd tranformer protection;<1U2 is the first transformer inspection with no pressure, and<2U2 is the second transformer inspection with no pressure, and<3U2 is the 3rd transformer inspection with no pressure.Below provide the inventive method and be applied to the stand-by power supply embodiment of the expansion internal bridge form of input automatically:
(i), operational mode 1: circuit breaker 1QF, 2QF, 3QF operation, the 4th circuit breaker 4QF stand-by heat
1 preparatory stage
Prepared auto restart 1: circuit breaker 1QF, 2QF are the combined floodgate running status, the 1KK of its corresponding operating circuit breaker, 2KK(or two-position relay 1KKJ, 2KKJ) remember for after closing a floodgate, the 4th circuit breaker 4QF is stand-by heat, the 4KK(of its corresponding operating circuit breaker or two-position relay 4KKJ) remember for after separating brake.Because 1KK, 2KK are state after closing a floodgate, so the first circuit breaker 1QF trip(ping) circuit is open, and circuit breaker 1QF, the locking of 2QF closing circuit; Open the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1,4Tcd2 charge when the 4th circuit breaker 4QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
Prepared auto restart 2: circuit breaker 1QF, 3QF are the combined floodgate running status, the 1KK of its corresponding operating circuit breaker, 3KK(or two-position relay 1KKJ, 3KKJ) remember for after closing a floodgate, the 4th circuit breaker 4QF is stand-by heat, the 4KK(of its corresponding operating circuit breaker or two-position relay 4KKJ) remember for after separating brake.Because 1KK, 3KK are state after closing a floodgate, so the first circuit breaker 1QF trip(ping) circuit is open, and circuit breaker 1QF, the locking of 3QF closing circuit; Open the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd3,4Tcd4 charge when the 4th circuit breaker 4QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 1 power supply dead electricity
(1) prepared auto restart 1: because inlet wire 1 power supply dead electricity, through the first circuit breaker 1QF inspection with no pressure with after without stream, offside the 4th circuit breaker 4QF power supply, pressure being arranged, the first circuit breaker 1QF tripping operation after time delay tT1.When the first circuit breaker 1QF tripping operation control command has been sent the 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed means that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby it is not corresponding to produce the first circuit breaker 1QF position, after checking that the 3rd transformer checks with no pressure, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.Or the 4th circuit breaker 4QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF tripping operation control command is sent, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
Prepared auto restart 2: because inlet wire 1 power supply dead electricity, through the first circuit breaker 1QF inspection with no pressure with after without stream, offside the 4th circuit breaker 4QF power supply, pressure being arranged, tripping operation the first circuit breaker 1QF after time delay tT1.When the first circuit breaker 1QF tripping operation control command has been sent the 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed means that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby it is not corresponding to produce the first circuit breaker 1QF position, after checking that the 3rd transformer checks with no pressure, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd3 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.Or the 4th circuit breaker 4QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF tripping operation control command is sent, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd3 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
(2) prepared auto restart 1: if the power supply dead electricity is caused by the first transformer or the action of the second tranformer protection; because protection action locking has adopted blocking; the 4th circuit breaker 4QF combined floodgate charge circuit can not be discharged and be blocked, therefore the 4th circuit breaker 4QF still can move combined floodgate.
Prepared auto restart 2: if the power supply dead electricity by the first tranformer protection action, caused, because protection action locking has adopted blocking, the 4th circuit breaker 4QF combined floodgate charge circuit can not be discharged and be blocked, therefore the 4th circuit breaker 4QF still can move combined floodgate; If the power supply dead electricity is caused by the 3rd tranformer protection action, the electric discharge immediately due to the 3rd tranformer protection action of the 4th circuit breaker 4QF charge circuit, the 4th circuit breaker 4QF closing circuit is blocked simultaneously, therefore the 4th circuit breaker 4QF can not close a floodgate.
(3) prepared auto restart 1: if the power supply dead electricity causes because of circuit breaker 1QF or 2QF jump, 1TWJ or 2TWJ can be closed, and 1KKJ or 2KKJ are still state after closing a floodgate, same generation 1QF or 2QF circuit breaker position are not corresponding, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1,4Tcd2 have charged, after the 3rd transformer with no pressure, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits on inspection
Prepared auto restart 2: if the power supply dead electricity causes because of circuit breaker 1QF or 3QF jump, 1TWJ or 3TWJ can be closed, and 1KKJ or 3KKJ are still state after closing a floodgate, same generation 1QF or 3QF circuit breaker position are not corresponding, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd3,4Tcd4 have charged, after the 3rd transformer with no pressure, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits on inspection.
(5) if manually pull open circuit breaker 1QF or 2QF or 3QF, 1KKJ or 2KKJ or 2KKJ by original combined floodgate after state become state after separating brake, the circuit breaker position of 1QF or 2QF or 3QF is not corresponding is false, therefore prepared auto restart 1: the closing circuit that can not start the 4th circuit breaker 4QF; Therefore prepared auto restart 2: the closing circuit that can not start the 4th circuit breaker 4QF.
(ii), operational mode 2: circuit breaker 1QF, 2QF, 4QF operation, the 3rd circuit breaker 3QF stand-by heat
1 preparatory stage
Prepared auto restart 1: circuit breaker 1QF, 2QF, 4QF are the combined floodgate running status, the 1KK of its corresponding operating circuit breaker, 2KK, 4KK(or two-position relay 1KKJ, 2KKJ, 4KKJ) remember for after closing a floodgate.Because 1KK, 2KK, 4KK are state after closing a floodgate, so circuit breaker 1QF, 4QF trip(ping) circuit are open, and circuit breaker 1QF, 2QF, the locking of 4QF closing circuit, so prepared auto restart 1 closing circuit is open.
Prepared auto restart 2: circuit breaker 1QF, 4QF are the combined floodgate running status, the 1KK of its corresponding operating circuit breaker, 4KK(or two-position relay 1KKJ, 4KKJ) remember for after closing a floodgate, the 3rd circuit breaker 3QF is stand-by heat, the 3KK(of its corresponding operating circuit breaker or two-position relay 3KKJ) remember for after separating brake.Because 1KK, 4KK are state after closing a floodgate, so circuit breaker 1QF, 4QF trip(ping) circuit are open, and the closing circuit locking; Open the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1,3Tcd2 charge when the 3rd circuit breaker 3QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 1 power supply dead electricity
(1) prepared auto restart 2: because inlet wire 1 power supply dead electricity, through the first circuit breaker 1QF inspection with no pressure with after without stream, offside the 4th circuit breaker 4QF power supply, pressure being arranged, the first circuit breaker 1QF tripping operation after time delay tT1.When the first circuit breaker 1QF tripping operation control command has been sent the 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed means that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby it is not corresponding to produce the first circuit breaker 1QF position, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd2 has charged, after the second transformer with no pressure, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits on inspection.Or the 3rd circuit breaker 3QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF circuit breaker trip control command is sent, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd2 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.
(2) prepared auto restart 2: if the power supply dead electricity is caused by the first tranformer protection action; because protection action locking has adopted blocking; the 3rd circuit breaker 3QF combined floodgate charge circuit can not be discharged and be blocked, therefore the 3rd circuit breaker 3QF still can move combined floodgate.If the power supply dead electricity causes by the second tranformer protection action, because protection action locking has adopted blocking, the 3rd circuit breaker 3QF combined floodgate charge circuit can be discharged and be blocked, therefore the 3rd circuit breaker 3QF can not move combined floodgate.
(3) prepared auto restart 2: if the power supply dead electricity causes because of the first circuit breaker 1QF jump, 1TWJ can be closed, and 1KKJ is still state after closing a floodgate, the same first circuit breaker 1QF position that produces is not corresponding, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd2 has charged, after the second transformer with no pressure, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits on inspection.
If the power supply dead electricity is second to cause because of circuit breaker 2QF jump, 2TWJ can be closed, and 2KKJ is still state after closing a floodgate, same generation second is not corresponding because of circuit breaker 2QF position, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd2 has charged, after the second transformer with no pressure, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits on inspection.
(4) if manually pull open circuit breaker 1QF or 2QF, 1KKJ or 2KKJ by original combined floodgate after state become state after separating brake, the position of circuit breaker 1QF or 2QF is not corresponding is false, therefore prepared auto restart 2: the closing circuit that can not start the 3rd circuit breaker 3QF.
2.2 inlet wire 2 power supply dead electricity
(1) prepared auto restart 2: because inlet wire 2 power supply dead electricity, through the 4th circuit breaker 4QF inspection with no pressure with after without stream, offside the first circuit breaker 1QF power supply, pressure being arranged, tripping operation the 4th circuit breaker 4QF after time delay tT4.When the 4th circuit breaker 4QF tripping operation control command has been sent the 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed means that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby it is not corresponding to produce the 4th circuit breaker 4QF position, on inspection after the 3rd transformer with no pressure, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.Or the 3rd circuit breaker 3QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF circuit breaker trip control command is sent, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.
(2) prepared auto restart 2: if the power supply dead electricity is caused by the 3rd tranformer protection action; because protection action locking has adopted blocking; the electric discharge immediately due to the 3rd tranformer protection action of the 3rd circuit breaker 3QF charge circuit; the 3rd circuit breaker 3QF closing circuit is blocked simultaneously, therefore the 3rd circuit breaker 3QF can not close a floodgate.
(3) prepared auto restart 2: if the power supply dead electricity causes because of the 4th circuit breaker 4QF jump, 4TWJ can be closed, and 4KKJ is still state after closing a floodgate, same the 4th circuit breaker 4QF position that produces is not corresponding, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1 has charged, after the 3rd transformer with no pressure, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits on inspection.
(4) if manually pull open the 4th circuit breaker 4QF, 4KKJ by original combined floodgate after state become state after separating brake, the circuit breaker position of 4QF is not corresponding is false, therefore prepared auto restart 2: the closing circuit that can not start the 3rd circuit breaker 3QF.
(iii), operational mode 3: circuit breaker 1QF, 3QF, 4QF operation, the second circuit breaker 2QF stand-by heat
1, the preparatory stage
Prepared auto restart 1: circuit breaker 1QF, 4QF are the combined floodgate running status, the 1KK of its corresponding operating circuit breaker, 4KK(or two-position relay 1KKJ, 4KKJ) remember for after closing a floodgate, the second circuit breaker 2QF is stand-by heat, the 2KK(of its corresponding operating circuit breaker or two-position relay 2KKJ) remember for after separating brake.Because 1KK, 4KK are state after closing a floodgate, so circuit breaker 1QF, 4QF trip(ping) circuit are open, and the closing circuit locking; Open the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1,2Tcd2 charge when the second circuit breaker 2QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
Prepared auto restart 2: circuit breaker 1QF, 3QF, 4QF are the combined floodgate running status, the 1KK of its corresponding operating circuit breaker, 3KK, 4KK(or two-position relay 1KKJ, 3KKJ, 4KKJ) remember for after closing a floodgate.Because 1KK, 3KK, 4KK are state after closing a floodgate, so circuit breaker 1QF, 4QF trip(ping) circuit are open, and circuit breaker 1QF, 3QF, the locking of 4QF closing circuit, prepared auto restart 2 closing circuits are open.
2 course of action
2.1 inlet wire 1 power supply dead electricity
(1) prepared auto restart 1: because inlet wire 1 power supply dead electricity, through the first circuit breaker 1QF inspection with no pressure with after without stream, offside the 4th circuit breaker 4QF power supply, pressure being arranged, the first circuit breaker 1QF tripping operation after time delay tT1.When the first circuit breaker 1QF tripping operation control command has been sent the 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed means that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby it is not corresponding to produce the first circuit breaker 1QF position, on inspection after the first transformer with no pressure, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit.Or second circuit breaker 2QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF tripping operation control command is sent, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit.
(2) prepared auto restart 1: if the power supply dead electricity is caused by the first tranformer protection action; the electric discharge immediately due to the first tranformer protection action of the second circuit breaker 2QF charge circuit; the second circuit breaker 2QF closing circuit is blocked simultaneously, therefore the second circuit breaker 2QF can not close a floodgate.
(3) prepared auto restart 1: if the power supply dead electricity causes because of the first circuit breaker 1QF jump, 1TWJ can be closed, and 1KKJ is still state after closing a floodgate, the same first circuit breaker 1QF position that produces is not corresponding, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, after the first transformer with no pressure, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit on inspection.
(4) if manually pull open the first circuit breaker 1QF, 1KKJ by original combined floodgate after state become state after separating brake, the position of the first circuit breaker 1QF is not corresponding is false, therefore prepared auto restart 1: the closing circuit that can not start the second circuit breaker 2QF.
2.2 inlet wire 2 power supply dead electricity
(1) prepared auto restart 1: because inlet wire 2 power supply dead electricity, through the 4th circuit breaker 4QF inspection with no pressure with after without stream, offside the first circuit breaker 1QF power supply, pressure being arranged, the 4th circuit breaker 4QF tripping operation after time delay tT4.When the 4th circuit breaker 4QF circuit breaker trip control command has been sent 4QF tripping operation time and checked really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed means that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby it is not corresponding to produce the 4th circuit breaker 4QF position, on inspection after the second transformer with no pressure, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit.Or second circuit breaker 2QF be open position originally, after sending, the 4th circuit breaker 4QF circuit breaker trip control command confirms really tripping (becoming open position) of 4QF, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit.
(2) prepared auto restart 1: if the power supply dead electricity is caused by the 3rd tranformer protection action; because protection action locking has adopted blocking; the second circuit breaker 2QF combined floodgate charge circuit can not be discharged and be blocked, therefore the second circuit breaker 2QF still can move combined floodgate.If the power supply dead electricity causes by the second tranformer protection action, because protection action locking has adopted blocking, the second circuit breaker 2QF combined floodgate charge circuit can be discharged and be blocked immediately, therefore the second circuit breaker 2QF can not move combined floodgate.
(3) prepared auto restart 1: if the power supply dead electricity causes because of circuit breaker 4QF or 3QF jump, 4TWJ or 3TWJ can be closed, and 4KKJ or 3KKJ are still state after closing a floodgate, same generation 4QF or 3QF circuit breaker position are not corresponding, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, after the second transformer with no pressure, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit on inspection.
(4) if manually pull open circuit breaker 4QF or 3QF, 4KKJ or 3KKJ by original combined floodgate after state become state after separating brake, the position of circuit breaker 4QF or 3QF is not corresponding is false, therefore prepared auto restart 1: the closing circuit that can not start the second circuit breaker 2QF.
(iv), operational mode 4: circuit breaker 2QF, 3QF, 4QF operation, the first circuit breaker 1QF stand-by heat
1 preparatory stage
Prepared auto restart 1: circuit breaker 2QF, 4QF are the combined floodgate running status, the 2KK of its corresponding operating circuit breaker, 4KK(or two-position relay 2KKJ, 4KKJ) remember for after closing a floodgate, the first circuit breaker 1QF is stand-by heat, the 1KK(of its corresponding operating circuit breaker or two-position relay 1KKJ) remember for after separating brake.Because 2KK, 4KK are state after closing a floodgate, so the 4QF trip(ping) circuit is open, and circuit breaker 2QF, the locking of 4QF closing circuit; Open the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1,1Tcd2 charge when the first circuit breaker 1QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
Prepared auto restart 2: circuit breaker 3QF, 4QF are the combined floodgate running status, the 3KK of its corresponding operating circuit breaker, 4KK(or two-position relay 3KKJ, 4KKJ) remember for after closing a floodgate, the first circuit breaker 1QF is stand-by heat, the 1KK(of its corresponding operating circuit breaker or two-position relay 1KKJ) remember for after separating brake.Because 3KK, 4KK are state after closing a floodgate, so the 4th circuit breaker 4QF trip(ping) circuit is open, and circuit breaker 3QF, the locking of 4QF closing circuit; Open the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3,1Tcd4 charge when the first circuit breaker 1QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 2 power supply dead electricity
(1) prepared auto restart 1: because inlet wire 2 power supply dead electricity, through the 4th circuit breaker 4QF inspection with no pressure with after without stream, offside the first circuit breaker 1QF power supply, pressure being arranged, the 4th circuit breaker 4QF tripping operation after time delay tT4.When the 4th circuit breaker 4QF tripping operation control command has been sent the 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed means that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby it is not corresponding to produce the 4th circuit breaker 4QF position, on inspection after the first transformer with no pressure, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit.Or first circuit breaker 1QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF tripping operation control command is sent, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit.
Prepared auto restart 2: because inlet wire 2 power supply dead electricity, through the 4th circuit breaker 4QF inspection with no pressure with after without stream, offside the first circuit breaker 1QF power supply, pressure being arranged, the 4th circuit breaker 4QF tripping operation after time delay tT4.When the 4th circuit breaker 4QF tripping operation control command has been sent the 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed means that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby it is not corresponding to produce the 4th circuit breaker 4QF position, on inspection after the first transformer with no pressure, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3 has charged, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit.Or first circuit breaker 1QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF circuit breaker trip control command is sent, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3 has charged, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit.
(2) prepared auto restart 1: if the power supply dead electricity by the first transformer action, caused, because protection action locking has adopted blocking, the first circuit breaker 1QF combined floodgate charge circuit can be discharged and be blocked, therefore the first circuit breaker 1QF can not move combined floodgate; If the power supply dead electricity causes by the action of the second transformer or the 3rd tranformer protection, because protection action locking has adopted blocking, the first circuit breaker 1QF combined floodgate charge circuit can not be discharged and be blocked, therefore the first circuit breaker 1QF still can move combined floodgate.
Prepared auto restart 2: if the power supply dead electricity is caused by the second tranformer protection or the action of the 3rd tranformer protection; because protection action locking has adopted blocking; the first circuit breaker 1QF combined floodgate charge circuit can not be discharged and be blocked, therefore the first circuit breaker 1QF still can move combined floodgate.
(3) prepared auto restart 1: if the power supply dead electricity causes because of circuit breaker 4QF or 2QF jump, 4TWJ or 2TWJ can be closed, and 4KKJ or 2KKJ are still state after closing a floodgate, same generation 4QF or 2QF circuit breaker position are not corresponding, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 or 1Tcd2 have charged, after the first transformer with no pressure, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit on inspection.
Prepared auto restart 2: if the power supply dead electricity causes because of circuit breaker 4QF or 3QF jump, 4TWJ or 3TWJ can be closed, and 4KKJ or 3KKJ are still state after closing a floodgate, same generation circuit breaker 4QF or 3QF position are not corresponding, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3 or 1Tcd4 have charged, after the first transformer with no pressure, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit on inspection.
(4) if manually pull open circuit breaker 4QF or 2QF or 3QF, 4KKJ or 2KKJ or 3KKJ by original combined floodgate after state become state after separating brake, the circuit breaker position of 4QF or 2QF or 3QF is not corresponding is false, therefore prepared auto restart 1: the closing circuit that can not start the first circuit breaker 1QF; Prepared auto restart 2: the closing circuit that can not start the first circuit breaker 1QF.
(v), operational mode 5: circuit breaker 1QF, 2QF operation, circuit breaker 3QF, 4QF stand-by heat
1 preparatory stage
Prepared auto restart 1: circuit breaker 1QF, 2QF are the combined floodgate running status, the 1KK of its corresponding operating circuit breaker, 2KK(or two-position relay 1KKJ, 2KKJ) remember for after closing a floodgate, the 4th circuit breaker 4QF is stand-by heat, the 4KK(of its corresponding operating circuit breaker or two-position relay 4KKJ) remember for after separating brake.Because 1KK, 2KK are state after closing a floodgate, so the first circuit breaker 1QF trip(ping) circuit is open, and circuit breaker 1QF, the locking of 2QF closing circuit; Open the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1,4Tcd2 charge when the 4th circuit breaker 4QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2: the first circuit breaker 1QF of prepared auto restart are the combined floodgate running status, the 1KK(of its corresponding operating circuit breaker or two-position relay 1KKJ) remember for after closing a floodgate, circuit breaker 3QF, 4QF are stand-by heat, the 3KK of its corresponding operating circuit breaker, 4KK(or two-position relay 3KKJ, 4KKJ) remember for after separating brake.Because 1KK is state after closing a floodgate, so the first circuit breaker 1QF trip(ping) circuit is open, and the closing circuit locking; Open circuit breaker 3QF, 4QF combined floodgate charge circuit 3Tcd2 and 4Tcd3 charge when circuit breaker 3QF, 4QF meet charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 1 power supply dead electricity
(1) prepared auto restart 1: because inlet wire 1 power supply dead electricity, through the first circuit breaker 1QF inspection with no pressure with after without stream, offside the 4th circuit breaker 4QF power supply, pressure being arranged, the first circuit breaker 1QF tripping operation after time delay tT1.When the first circuit breaker 1QF tripping operation control command has been sent the 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed means that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby it is not corresponding to produce the first circuit breaker 1QF position, on inspection after the 3rd transformer with no pressure, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.Or the 4th circuit breaker 4QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF tripping operation control command is sent, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
Prepared auto restart 2: because inlet wire 1 power supply dead electricity, through the first circuit breaker 1QF inspection with no pressure with after without stream, offside the 4th circuit breaker 4QF power supply, pressure being arranged, tripping operation the first circuit breaker 1QF after time delay tH1.When the first circuit breaker 1QF tripping operation control command has been sent the 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed means that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby it is not corresponding to produce the first circuit breaker 1QF position, after checking respectively the 3rd transformer with no pressure, after checking the second transformer with no pressure, at circuit breaker 3QF, 4QF combined floodgate charge circuit 3Tcd2, after 4Tcd3 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
(2) prepared auto restart 1: if the power supply dead electricity is caused by the first tranformer protection or the action of the second tranformer protection; because protection action locking has adopted blocking; the 4th circuit breaker 4QF combined floodgate charge circuit can not be discharged and be blocked, therefore the 4th circuit breaker 4QF still can move combined floodgate.
Prepared auto restart 2: if the power supply dead electricity by the first tranformer protection action, caused, because protection action locking has adopted blocking, circuit breaker 3QF and 4QF combined floodgate charge circuit can not be discharged and be blocked, therefore circuit breaker 3QF and 4QF still can move combined floodgate.If the power supply dead electricity causes by the second tranformer protection action, because protection action locking has adopted blocking, the 4th circuit breaker 4QF combined floodgate charge circuit can not be discharged and be blocked, therefore the 4th circuit breaker 4QF still can move combined floodgate; And circuit breaker 3QF combined floodgate charge circuit can be discharged and be blocked, therefore the 3rd circuit breaker 3QF can not move combined floodgate.
(3) prepared auto restart 1: if the incoming power dead electricity causes because of circuit breaker 1QF or 2QF jump, 1TWJ or 2TWJ can be closed, and 1KKJ or 2KKJ are still state after closing a floodgate, same generation circuit breaker 1QF or 2QF position are not corresponding, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 or 4Tcd2 have charged, after the 3rd transformer with no pressure, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits on inspection
Prepared auto restart 2: if the incoming power dead electricity causes because of the first circuit breaker 1QF jump, 1TWJ can be closed, and 1KKJ is still state after closing a floodgate, the same first circuit breaker 1QF position that produces is not corresponding, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd2 has charged, after the second transformer with no pressure, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits on inspection; After the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd3 has charged, after the 3rd transformer with no pressure, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits on inspection.
(4) if manually pull open circuit breaker 1QF or 2QF, 1KKJ or 2KKJ by original combined floodgate after state become state after separating brake, the position of circuit breaker 1QF or 2QF is not corresponding is false, therefore prepared auto restart 1: the closing circuit that can not start the 4th circuit breaker 4QF; Therefore prepared auto restart 2: the closing circuit that can not start circuit breaker 3QF and 4QF.
(vi), operational mode 6: circuit breaker 1QF, 4QF operation, circuit breaker 2QF, 3QF stand-by heat
1 preparatory stage
Prepared auto restart 1: circuit breaker 1QF, 4QF are the combined floodgate running status, the 1KK of its corresponding operating circuit breaker, 4KK(or two-position relay 1KKJ, 4KKJ) remember for after closing a floodgate, the second circuit breaker 2QF is stand-by heat, the 2KK(of its corresponding operating circuit breaker or two-position relay 2KKJ) remember for after separating brake.Because 1KK, 4KK are state after closing a floodgate, so circuit breaker 1QF, 4QF trip(ping) circuit are open, and the closing circuit locking; Open the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1,2Tcd2 charge when the second circuit breaker 2QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
Prepared auto restart 2: circuit breaker 1QF, 4QF are the combined floodgate running status, the 1KK of its corresponding operating circuit breaker, 4KK(or two-position relay 1KKJ, 4KKJ) remember for after closing a floodgate, the 3rd circuit breaker 3QF is stand-by heat, the 3KK(of its corresponding operating circuit breaker or two-position relay 3KKJ) remember for after separating brake.Because 1KK, 4KK are state after closing a floodgate, so circuit breaker 1QF, 4QF trip(ping) circuit are open, and the closing circuit locking; Open the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1,3Tcd2 charge when the 3rd circuit breaker 3QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 1 power supply dead electricity
(1) prepared auto restart 1: because inlet wire 1 power supply dead electricity, through the first circuit breaker 1QF inspection with no pressure with after without stream, offside the 4th circuit breaker 4QF power supply, pressure being arranged, the first circuit breaker 1QF tripping operation after time delay tT1.When the first circuit breaker 1QF tripping operation control command has been sent the 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed means that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby it is not corresponding to produce the first circuit breaker 1QF position, on inspection after the first transformer with no pressure, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit.Or second circuit breaker 2QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF circuit breaker trip control command is sent, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit.
Prepared auto restart 2: because inlet wire 1 power supply dead electricity, through the first circuit breaker 1QF inspection with no pressure with after without stream, offside the 4th circuit breaker 4QF power supply, pressure being arranged, the first circuit breaker 1QF tripping operation after time delay tT1.When the first circuit breaker 1QF tripping operation control command has been sent the 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed means that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby it is not corresponding to produce the first circuit breaker 1QF position, on inspection after the second transformer with no pressure, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd2 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.Or the 3rd circuit breaker 3QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF circuit breaker trip control command is sent, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd2 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.
(2) prepared auto restart 1: if the power supply dead electricity is caused by the first tranformer protection action; the electric discharge immediately due to the first tranformer protection action of the second circuit breaker 2QF charge circuit; the second circuit breaker 2QF closing circuit is blocked simultaneously, therefore the second circuit breaker 2QF can not close a floodgate.
Prepared auto restart 2: if the power supply dead electricity by the first tranformer protection action, caused, because protection action locking has adopted blocking, the 3rd circuit breaker 3QF combined floodgate charge circuit can not be discharged and be blocked, therefore the 3rd circuit breaker 3QF still can move combined floodgate.
(3) prepared auto restart 1: if the power supply dead electricity causes because of the first circuit breaker 1QF jump, 1TWJ can be closed, and 1KKJ is still state after closing a floodgate, the same first circuit breaker 1QF position that produces is not corresponding, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, after the first transformer with no pressure, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit on inspection
Prepared auto restart 2: if the power supply dead electricity causes because of the first circuit breaker 1QF jump, 1TWJ can be closed, and 1KKJ is still state after closing a floodgate, the same first circuit breaker 1QF position that produces is not corresponding, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd2 has charged, after the second transformer with no pressure, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits on inspection.
(4) if manually pull open the first circuit breaker 1QF, 1KKJ by original combined floodgate after state become state after separating brake, the position of the first circuit breaker 1QF is not corresponding is false, therefore prepared auto restart 1: the closing circuit that can not start the second circuit breaker 2QF; Therefore prepared auto restart 2: the closing circuit that can not start the 3rd circuit breaker 3QF.
2.2 inlet wire 2 power supply dead electricity
(1) prepared auto restart 1: because inlet wire 2 power supply dead electricity, through the 4th circuit breaker 4QF inspection with no pressure with after without stream, offside the first circuit breaker 1QF power supply, pressure being arranged, the 4th circuit breaker 4QF tripping operation after time delay tT4.When the 4th circuit breaker 4QF tripping operation control command has been sent the 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed means that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby it is not corresponding to produce the 4th circuit breaker 4QF position, on inspection after the second transformer with no pressure, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit.Or second circuit breaker 2QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF circuit breaker trip control command is sent, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit.
Prepared auto restart 2: because inlet wire 2 power supply dead electricity, through the 4th circuit breaker 4QF inspection with no pressure with after without stream, offside the first circuit breaker 1QF power supply, pressure being arranged, the 4th circuit breaker 4QF tripping operation after time delay tT4.When the 4th circuit breaker 4QF tripping operation control command has been sent the 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed means that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby it is not corresponding to produce the 4th circuit breaker 4QF position, on inspection after the 3rd transformer with no pressure, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.Or the 3rd circuit breaker 3QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF circuit breaker trip control command is sent, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.
(2) prepared auto restart 1: if the power supply dead electricity is caused by the 3rd tranformer protection action; because protection action locking has adopted blocking; the second circuit breaker 2QF combined floodgate charge circuit can not be discharged and be blocked, therefore the second circuit breaker 2QF still can move combined floodgate.
Prepared auto restart 2: if the power supply dead electricity is caused by the 3rd tranformer protection action; because protection action locking has adopted blocking; the electric discharge immediately due to the 3rd tranformer protection action of the 3rd circuit breaker 3QF charge circuit; the 3rd circuit breaker 3QF closing circuit is blocked simultaneously, therefore the 3rd circuit breaker 3QF can not close a floodgate.
(3) prepared auto restart 1: if the power supply dead electricity causes because of the 4th circuit breaker 4QF jump, 4TWJ can be closed, and 4KKJ is still state after closing a floodgate, same the 4th circuit breaker 4QF position that produces is not corresponding, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, after the second transformer with no pressure, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit on inspection.
Prepared auto restart 2: if the power supply dead electricity causes because of the 4th circuit breaker 4QF jump, 4TWJ can be closed, and 4KKJ is still state after closing a floodgate, same the 4th circuit breaker 4QF position that produces is not corresponding, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1 has charged, after the 3rd transformer with no pressure, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits on inspection.
(4) if manually pull open the 4th circuit breaker 4QF, 4KKJ by original combined floodgate after state become state after separating brake, the position of the 4th circuit breaker 4QF is not corresponding is false, therefore prepared auto restart 1: the closing circuit that can not start the second circuit breaker 2QF; Prepared auto restart 2: the closing circuit that can not start the 3rd circuit breaker 3QF.
(vii), operational mode 7: circuit breaker 3QF, 4QF operation, circuit breaker 1QF, 2QF stand-by heat
1 preparatory stage
1: the four circuit breaker 4QF of prepared auto restart are the combined floodgate running status, the 4KK(of its corresponding operating circuit breaker or two-position relay 4KKJ) remember for after closing a floodgate, circuit breaker 1QF, 2QF are stand-by heat, the 1KK of its corresponding operating circuit breaker, 2KK(or two-position relay 1KKJ, 2KKJ) remember for after separating brake.Because 4KK is state after closing a floodgate, so the 4th circuit breaker 4QF trip(ping) circuit is open, and the closing circuit locking; Open circuit breaker 1QF, 2QF combined floodgate charge circuit 1Tcd1,2Tcd1 charge when 1QF, 2QF meet charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
Prepared auto restart 2: circuit breaker 3QF, 4QF are the combined floodgate running status, the 3KK of its corresponding operating circuit breaker, 4KK(or two-position relay 3KKJ, 4KKJ) remember for after closing a floodgate, the first circuit breaker 1QF is stand-by heat, the 1KK(of its corresponding operating circuit breaker or two-position relay 1KKJ) remember for after separating brake.Because 3KK, 4KK are state after closing a floodgate, so the 4th circuit breaker 4QF trip(ping) circuit is open, and circuit breaker 3QF, the locking of 4QF closing circuit; Open the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3,1Tcd4 charge when the first circuit breaker 1QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 2 power supply dead electricity
(1) prepared auto restart 1: because inlet wire 2 power supply dead electricity, through the 4th circuit breaker 4QF inspection with no pressure with after without stream, offside the first circuit breaker 1QF power supply, pressure being arranged, the 4th circuit breaker 4QF tripping operation after time delay tT4.When the 4th circuit breaker 4QF tripping operation control command has been sent the 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed means that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby it is not corresponding to produce the 4th circuit breaker 4QF position, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, after the first transformer with no pressure, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit on inspection; After the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, after the second transformer with no pressure, time delay tH2 starts a closing pulse to the 2QF closing circuit on inspection.Or first circuit breaker 1QF be open position originally, after sending, the 4th circuit breaker 4QF tripping operation control command confirms really tripping (becoming open position) of 4QF, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit.Or second circuit breaker 2QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF tripping operation control command is sent, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit.
Prepared auto restart 2: because inlet wire 2 power supply dead electricity, through the 4th circuit breaker 4QF inspection with no pressure with after without stream, offside the first circuit breaker 1QF power supply, pressure being arranged, the 4th circuit breaker 4QF tripping operation after time delay tT4.When the 4th circuit breaker 4QF tripping operation control command has been sent the 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed means that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby it is not corresponding to produce the 4th circuit breaker 4QF position, on inspection after the first transformer with no pressure, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3 has charged, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit.Or first circuit breaker 1QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF circuit breaker trip control command is sent, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3 has charged, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit.
(2) prepared auto restart 1: if the power supply dead electricity is caused by the 3rd tranformer protection action, because protection action locking has adopted blocking, circuit breaker 1QF and 2QF combined floodgate charge circuit can not be discharged and be blocked, therefore circuit breaker 1QF and 2QF still can move combined floodgate; If the power supply dead electricity causes by the second tranformer protection action, because protection action locking has adopted blocking, the first circuit breaker 1QF combined floodgate charge circuit can not be discharged and be blocked, therefore the first circuit breaker 1QF still can move combined floodgate; Because protection action locking has adopted blocking, the second circuit breaker 2QF combined floodgate charge circuit can be discharged and be blocked, therefore the second circuit breaker 2QF can not move combined floodgate.
Prepared auto restart 2: if the power supply dead electricity is caused by the 3rd tranformer protection or the action of the second tranformer protection; because protection action locking has adopted blocking; the first circuit breaker 1QF combined floodgate charge circuit can not be discharged and be blocked, therefore the first circuit breaker 1QF still can move combined floodgate.
(3) prepared auto restart 1: if the power supply dead electricity causes because of the 4th circuit breaker 4QF jump, 4TWJ can be closed, and 4KKJ is still state after closing a floodgate, same the 4th circuit breaker 4QF position that produces is not corresponding, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, after the first transformer with no pressure, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit on inspection; After the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, after the second transformer with no pressure, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit on inspection.
Prepared auto restart 2: if the power supply dead electricity causes because of circuit breaker 4QF or 3QF jump, 4TWJ or 3TWJ can be closed, and 4KKJ or 3KKJ are still state after closing a floodgate, the disconnected position of same generation road device 4QF or 3QF is not corresponding, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3 or 1Tcd4 have charged, after the first transformer with no pressure, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit on inspection.
(4) if manually pull open circuit breaker 4QF or 3QF, 4KKJ or 3KKJ by original combined floodgate after state become state after separating brake, the circuit breaker position of 4QF or 3QF is not corresponding is false, therefore prepared auto restart 1: the closing circuit that can not start circuit breaker 1QF, 2QF; Prepared auto restart 2: the closing circuit that can not start the first circuit breaker 1QF.
(viii), 8: the first circuit breaker 1QF of operational mode operation, circuit breaker 2QF, 3QF, 4QF stand-by heat
1 preparatory stage
1: the first circuit breaker 1QF of prepared auto restart is the combined floodgate running status, the 1KK(of its corresponding operating circuit breaker or two-position relay 1KKJ) remember for after closing a floodgate, circuit breaker 2QF, 4QF are stand-by heat, the 2KK of its corresponding operating circuit breaker, 4KK(or two-position relay 2KKJ, 4KKJ) remember for after separating brake.Because 1KK is state after closing a floodgate, so the first circuit breaker 1QF trip(ping) circuit is open, and the closing circuit locking; Open circuit breaker 2QF, 4QF combined floodgate charge circuit 2Tcd2,4Tcd1 charge when circuit breaker 2QF, 4QF meet charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2: the first circuit breaker 1QF of prepared auto restart are the combined floodgate running status, the 1KK(of its corresponding operating circuit breaker or two-position relay 1KKJ) remember for after closing a floodgate, circuit breaker 3QF, 4QF are stand-by heat, the 3KK of its corresponding operating circuit breaker, 4KK(or two-position relay 3KKJ, 4KKJ) remember for after separating brake.Because 1KK is state after closing a floodgate, so the first circuit breaker 1QF trip(ping) circuit is open, and the closing circuit locking; Open 3QF, 4QF combined floodgate charge circuit 3Tcd2,4Tcd3 charge when circuit breaker 3QF, 4QF meet charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 1 power supply dead electricity
(1) prepared auto restart 1: because inlet wire 1 power supply dead electricity, through the first circuit breaker 1QF inspection with no pressure with after without stream, offside the 4th circuit breaker 4QF power supply, pressure being arranged, the first circuit breaker 1QF tripping operation after time delay tT1.When the first circuit breaker 1QF tripping operation control command has been sent the 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed means that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby it is not corresponding to produce the first circuit breaker 1QF position, on inspection after the first transformer with no pressure, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit; After the 3rd transformer with no pressure, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits on inspection.Or second circuit breaker 2QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF tripping operation control command is sent, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit.Or the 4th circuit breaker 4QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF tripping operation control command is sent, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
Prepared auto restart 2: because inlet wire 1 power supply dead electricity, through the first circuit breaker 1QF inspection with no pressure with after without stream, offside the 4th circuit breaker 4QF power supply, pressure being arranged, the first circuit breaker 1QF tripping operation after time delay tT1.When the first circuit breaker 1QF tripping operation control command has been sent the 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed means that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby it is not corresponding to produce the first circuit breaker 1QF position, on inspection after the second transformer with no pressure, after 3QF combined floodgate charge circuit 3Tcd2 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits; After the 3rd transformer with no pressure, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd3 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits on inspection.Or the 3rd circuit breaker 3QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF circuit breaker trip control command is sent, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd2 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.Or the 4th circuit breaker 4QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF tripping operation control command is sent, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd3 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
(2) prepared auto restart 1: if the power supply dead electricity is caused by the first tranformer protection action, the electric discharge immediately due to the first tranformer protection action of the second circuit breaker 2QF charge circuit, the second circuit breaker 2QF closing circuit is blocked simultaneously, therefore the second circuit breaker 2QF can not close a floodgate; And the 4th circuit breaker 4QF combined floodgate charge circuit can not be discharged and be blocked, therefore the 4th circuit breaker 4QF still can move combined floodgate.
Prepared auto restart 2: if the power supply dead electricity by the first tranformer protection action, caused, because protection action locking has adopted blocking, circuit breaker 3QF and 4QF combined floodgate charge circuit can not be discharged and be blocked, therefore circuit breaker 3QF and 4QF still can move combined floodgate.
(3) prepared auto restart 1: if the power supply dead electricity causes because of the first circuit breaker 1QF jump, 1TWJ can be closed, and 1KKJ is still state after closing a floodgate, the same first circuit breaker 1QF position that produces is not corresponding, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, after the first transformer with no pressure, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit on inspection; After the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, after the 3rd transformer with no pressure, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits on inspection.
Prepared auto restart 2: if the power supply dead electricity causes because of the first circuit breaker 1QF jump, 1TWJ can be closed, and 1KKJ is still state after closing a floodgate, the same first circuit breaker 1QF position that produces is not corresponding, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd2 has charged, after the second transformer with no pressure, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits on inspection; After the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd3 has charged, after the 3rd transformer with no pressure, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits on inspection.
(4) if manually pull open the first circuit breaker 1QF, 1KKJ by original combined floodgate after state become state after separating brake, the position of the first circuit breaker 1QF is not corresponding is false, therefore prepared auto restart 1: the closing circuit that can not start circuit breaker 2QF, 4QF; Therefore prepared auto restart 2: the closing circuit that can not start circuit breaker 3QF, 4QF.
(ix), operational mode 9: the four circuit breaker 4QF operations, circuit breaker 2QF, 3QF, 1QF stand-by heat
1 preparatory stage
1: the four circuit breaker 4QF of prepared auto restart are the combined floodgate running status, the 4KK(of its corresponding operating circuit breaker or two-position relay 4KKJ) remember for after closing a floodgate, circuit breaker 1QF, 2QF are stand-by heat, the 1KK of its corresponding operating circuit breaker, 2KK(or two-position relay 1KKJ, 2KKJ) remember for after separating brake.Because 4KK is state after closing a floodgate, so the 4th circuit breaker 4QF trip(ping) circuit is open, and the closing circuit locking; Open circuit breaker 1QF, 2QF combined floodgate charge circuit 1Tcd1,2Tcd1 charge when circuit breaker 1QF, 2QF meet charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2: the four circuit breaker 4QF of prepared auto restart are the combined floodgate running status, the 4KK(of its corresponding operating circuit breaker or two-position relay 4KKJ) remember for after closing a floodgate, circuit breaker 1QF, 3QF are stand-by heat, the 1KK of its corresponding operating circuit breaker, 3KK(or two-position relay 1KKJ, 3KKJ) remember for after separating brake.Because 4KK is state after closing a floodgate, so the 4th circuit breaker 4QF trip(ping) circuit is open, and the closing circuit locking; Open circuit breaker 1QF, 3QF combined floodgate charge circuit 1Tcd3,3Tcd1 charge when circuit breaker 1QF, 3QF meet charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 2 power supply dead electricity
(1) prepared auto restart 1: because inlet wire 2 power supply dead electricity, through the 4th circuit breaker 4QF inspection with no pressure with after without stream, offside the first circuit breaker 1QF power supply, pressure being arranged, the 4th circuit breaker 4QF tripping operation after time delay tT4.When the 4th circuit breaker 4QF tripping operation control command has been sent the 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed means that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby it is not corresponding to produce the 4th circuit breaker 4QF position, on inspection after the first transformer with no pressure, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit; After the second transformer with no pressure, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit on inspection.Or first circuit breaker 1QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF circuit breaker trip control command is sent, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit.Or second circuit breaker 2QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF tripping operation control command is sent, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit.
Prepared auto restart 2: because inlet wire 2 power supply dead electricity, through the 4th circuit breaker 4QF inspection with no pressure with after without stream, offside the first circuit breaker 1QF power supply, pressure being arranged, the 4th circuit breaker 4QF tripping operation after time delay tT4.When the 4th circuit breaker 4QF tripping operation control command has been sent the 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed means that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby it is not corresponding to produce the 4th circuit breaker 4QF position, on inspection after the first transformer with no pressure, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3 has charged, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit; After the 3rd transformer with no pressure, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits on inspection.Or first circuit breaker 1QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF tripping operation control command is sent, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3 has charged, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit.Or the 3rd circuit breaker 3QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF tripping operation control command is sent, after the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1 has charged, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits.
(2) prepared auto restart 1: if the power supply dead electricity is caused by the 3rd tranformer protection action; because protection action locking has adopted blocking; circuit breaker 1QF and 2QF combined floodgate charge circuit can not be discharged and be blocked, therefore circuit breaker 1QF and 2QF still can move combined floodgate.
Prepared auto restart 2: if the power supply dead electricity is caused by the 3rd tranformer protection action, because protection action locking has adopted blocking, the electric discharge immediately due to the 3rd tranformer protection action of the 3rd circuit breaker 3QF charge circuit, the 3rd circuit breaker 3QF closing circuit is blocked simultaneously, therefore the 3rd circuit breaker 3QF can not close a floodgate; And the first circuit breaker 1QF combined floodgate charge circuit can not be discharged and be blocked, therefore the first circuit breaker 1QF still can move combined floodgate.
(3) prepared auto restart 1: if the power supply dead electricity causes because of the 4th circuit breaker 4QF jump, 4TWJ can be closed, and 4KKJ is still state after closing a floodgate, same the 4th circuit breaker 4QF position that produces is not corresponding, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, after the first transformer with no pressure, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit on inspection; After the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, after the second transformer with no pressure, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit on inspection.
Prepared auto restart 2: if the power supply dead electricity causes because of the 4th circuit breaker 4QF jump, 4TWJ can be closed, and 4KKJ is still state after closing a floodgate, same the 4th circuit breaker 4QF position that produces is not corresponding, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd3 has charged, after the first transformer with no pressure, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit on inspection; After the 3rd circuit breaker 3QF combined floodgate charge circuit 3Tcd1 has charged, after the 3rd transformer with no pressure, time delay tH3 starts closing pulse to the three circuit breaker 3QF closing circuits on inspection.
(4) if manually pull open the 4th circuit breaker 4QF, 4KKJ by original combined floodgate after state become state after separating brake, the position of the 4th circuit breaker 4QF is not corresponding is false, therefore prepared auto restart 1: the closing circuit that can not start circuit breaker 1QF, 2QF; Prepared auto restart 2: the closing circuit that can not start circuit breaker 1QF, 3QF.
(x), signal circuit
1, after each tripping operation exports with combined floodgate, send out immediately the prepared auto restart actuating signal;
2,, after the tranformer protection action, in the time of locking prepared auto restart closing circuit, send out tranformer protection action locking prepared auto restart switching signal;
3, system do not occur extremely, the prepared auto restart normal operation, voltage or current circuit abnormal, the backup auto-activating device abnormal signal is sent out in time delay.
Internal bridge prepared auto restart and sectionalized single busbar connection prepared auto restart specific embodiments
Internal bridge as shown in Figure 2, include the two-way power supply in the applied transmission and distribution networks of method of the present invention, be serially connected with respectively the first circuit breaker 1QF and the 4th circuit breaker 4QF on the two-way power supply, also connect respectively two transformers, i.e. the first transformer and the 3rd transformer or the second transformer, the 3rd circuit breaker 3QF or the second circuit breaker 2QF are arranged between the two-way power supply, and the line side of electric power incoming line and transformer side all are connected to voltage transformer.Single-trunk segmental wiring as shown in Figure 3, include the two-way electric power incoming line in the applied transmission and distribution networks of method of the present invention, be serially connected with respectively the first circuit breaker 1QF and the 4th circuit breaker 4QF on the two-way electric power incoming line, be connected to again the first bus and second or triple bus-bar, two buses also connect respectively two transformers (i.e. the first transformer and the second transformer or the 3rd transformer, lower same) or be connected with respectively the load outlet, section breaker (the second circuit breaker 2QF or the 3rd circuit breaker 3QF) is arranged between two buses, all be connected to voltage transformer on the line side of two-way electric power incoming line and two buses.
So that the first circuit breaker 1QF, the second circuit breaker 2QF, the 4th circuit breaker 4QF to be arranged in internal bridge, the transformer connected is that the first transformer and the 3rd transformer are example, " primary connection mode control word " FS1 put 1 and FS2 set to 0, and FS3 put 1 and FS4 set to 0, be prepared auto restart 1 logic, therefore the logical circuit whole lockings relevant with the 3rd circuit breaker 3QF logic with prepared auto restart 2.Wherein 1BCJ is the first tranformer protection, and 2BCJ, 3BCJ are the 3rd transformer;<1U2 is the first transformer inspection with no pressure,<2U2 and<3U2 is the 3rd transformer inspection with no pressure.Below providing the present invention is applied to the embodiment of the internal bridge (single-trunk segmental wiring) that stand-by power supply automatically drops into (FS1 sets to 0 with FS2 and puts 1 when " primary connection mode control word ", and FS3 sets to 0 and puts 1 with FS4, while being prepared auto restart 2 logic, its logical AND prepared auto restart 1 is similar):
(i), operational mode 1: circuit breaker 1QF, 2QF operation, the 4th circuit breaker 4QF stand-by heat
1 preparatory stage
Circuit breaker 1QF, 2QF are the combined floodgate running status, the 1KK of its corresponding operating circuit breaker, 2KK(or two-position relay 1KKJ, 2KKJ) remember for after closing a floodgate, the 4th circuit breaker 4QF is stand-by heat, the 4KK(of its corresponding operating circuit breaker or two-position relay 4KKJ) remember for after separating brake.Because 1KK, 2KK are state after closing a floodgate, so the first circuit breaker 1QF trip(ping) circuit is open, and circuit breaker 1QF, the locking of 2QF closing circuit; Open the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1,4Tcd2 charge when the 4th circuit breaker 4QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 1 power supply dead electricity
(1) because of inlet wire 1 power supply dead electricity, through the first circuit breaker 1QF inspection with no pressure with after without stream, offside the 4th circuit breaker 4QF power supply, pressure being arranged, the first circuit breaker 1QF tripping operation after time delay tT1.When the first circuit breaker 1QF tripping operation control command has been sent the 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed means that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby it is not corresponding to produce the first circuit breaker 1QF position, after the 3rd transformer with no pressure, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits on inspection.Or the 4th circuit breaker 4QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF circuit breaker trip control command is sent, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
(2) if the power supply dead electricity is moved and caused by the first tranformer protection, the 4th circuit breaker 4QF charge circuit is because the main transformer protection action adopts blocking, and the 4th circuit breaker 4QF closing circuit is not blocked, therefore the 4th circuit breaker 4QF closes a floodgate.If the power supply dead electricity is caused by the 3rd tranformer protection action, the electric discharge immediately due to the 3rd tranformer protection action of the 4th circuit breaker 4QF charge circuit, the 4th circuit breaker 4QF closing circuit is blocked simultaneously, therefore the 4th circuit breaker 4QF can not close a floodgate.
(3) if the power supply dead electricity because of circuit breaker 1QF or 2QF jump, cause, 1TWJ or 2TWJ can be closed, and 1KKJ or 2KKJ are still state after closing a floodgate, same generation 1QF or 2QF circuit breaker position are not corresponding, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 or 4Tcd2 have charged, after the 3rd transformer with no pressure, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits on inspection.
(5) if manually pull open circuit breaker 1QF or 2QF, 1KKJ or 2KKJ by original combined floodgate after state become state after separating brake, the position of circuit breaker 1QF or 2QF is not corresponding is false, therefore prepared auto restart can not start the closing circuit of the 4th circuit breaker 4QF.
(ii), operational mode 2: circuit breaker 2QF, 4QF operation, circuit breaker 1QF stand-by heat
1 preparatory stage
Prepared auto restart 1: circuit breaker 2QF, 4QF are the combined floodgate running status, the 2KK of its corresponding operating circuit breaker, 4KK(or two-position relay 2KKJ, 4KKJ) remember for after closing a floodgate, the first circuit breaker 1QF is stand-by heat, the 1KK(of its corresponding operating circuit breaker or two-position relay 1KKJ) remember for after separating brake.Because 2KK, 4KK are state after closing a floodgate, so the 4QF trip(ping) circuit is open, and circuit breaker 2QF, the locking of 4QF closing circuit; Open the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1,1Tcd2 charge when the first circuit breaker 1QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 2 power supply dead electricity
(1) because of inlet wire 2 power supply dead electricity, through the 4th circuit breaker 4QF inspection with no pressure with after without stream, offside the first circuit breaker 1QF power supply, pressure being arranged, the 4th circuit breaker 4QF tripping operation after time delay tT4.When the 4th circuit breaker 4QF tripping operation control command has been sent the 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed means that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby it is not corresponding to produce the 4th circuit breaker 4QF position, on inspection after the first transformer with no pressure, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit.Or first circuit breaker 1QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF circuit breaker trip control command is sent, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit.
(2) if the power supply dead electricity by the 3rd tranformer protection action, caused, because protection action locking has adopted blocking, the first circuit breaker 1QF combined floodgate charge circuit can not be discharged and be blocked, therefore the first circuit breaker 1QF still can move combined floodgate.If the power supply dead electricity is caused by the first tranformer protection action, the electric discharge immediately due to the first tranformer protection action of the first circuit breaker 1QF charge circuit, the first circuit breaker 1QF closing circuit is blocked simultaneously, therefore the first circuit breaker 1QF can not close a floodgate.
(3) if the power supply dead electricity because of circuit breaker 4QF or 2QF jump, cause, 4TWJ or 2TWJ can be closed, and 4KKJ or 2KKJ are still state after closing a floodgate, same generation 4QF or 2QF circuit breaker position are not corresponding, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 or 1Tcd2 have charged, after the first transformer with no pressure, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit on inspection.
(4) if manually pull open circuit breaker 4QF or 2QF, 4KKJ or 2KKJ by original combined floodgate after state become state after separating brake, the circuit breaker position of 4QF or 2QF is not corresponding is false, therefore prepared auto restart can not start the closing circuit of the first circuit breaker 1QF.
(iii), operational mode 3: circuit breaker 1QF, 4QF operation, the second circuit breaker 2QF stand-by heat
1 preparatory stage
Circuit breaker 1QF, 4QF are the combined floodgate running status, the 1KK of its corresponding operating circuit breaker, 4KK(or two-position relay 1KKJ, 4KKJ) remember for after closing a floodgate, the second circuit breaker 2QF is stand-by heat, the 2KK(of its corresponding operating circuit breaker or two-position relay 2KKJ) remember for after separating brake.Because 1KK, 4KK are state after closing a floodgate, so circuit breaker 1QF, 4QF trip(ping) circuit are open, and the closing circuit locking; Open the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1,2Tcd2 charge when the second circuit breaker 2QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 1 power supply dead electricity
(1) because of inlet wire 1 power supply dead electricity, through the first circuit breaker 1QF inspection with no pressure with after without stream, offside the 4th circuit breaker 4QF power supply, pressure being arranged, the first circuit breaker 1QF tripping operation after time delay tT1.When the first circuit breaker 1QF circuit breaker trip control command has been sent 1QF tripping operation time and checked really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed means that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby it is not corresponding to produce the first circuit breaker 1QF position, on inspection after the first transformer with no pressure, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit.Or second circuit breaker 2QF be open position originally, after sending, the first circuit breaker 1QF tripping operation control command confirms really tripping (becoming open position) of 1QF, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit.
(2) if the power supply dead electricity is moved and caused by the first tranformer protection, the second circuit breaker 2QF charge circuit discharges immediately due to the first tranformer protection action, and the second circuit breaker 2QF closing circuit is blocked simultaneously, therefore the second circuit breaker 2QF can not close a floodgate.
(3) if the power supply dead electricity because of the first circuit breaker 1QF jump, cause, 1TWJ can be closed, and 1KKJ is still state after closing a floodgate, the same first circuit breaker 1QF position that produces is not corresponding, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, after the first transformer with no pressure, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit on inspection
(4) if manually pull open the first circuit breaker 1QF, 1KKJ by original combined floodgate after state become state after separating brake, the position of the first circuit breaker 1QF is not corresponding is false, therefore prepared auto restart can not start the closing circuit of the second circuit breaker 2QF.
2.2 inlet wire 2 power supply dead electricity
(1) because of inlet wire 2 power supply dead electricity, through the 4th circuit breaker 4QF inspection with no pressure with after without stream, offside the first circuit breaker 1QF power supply, pressure being arranged, the 4th circuit breaker 4QF tripping operation after time delay tT4.When the 4th circuit breaker 4QF tripping operation control command has been sent the 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed means that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby it is not corresponding to produce the 4th circuit breaker 4QF position, on inspection after the 3rd transformer with no pressure, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit.Or second circuit breaker 2QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF circuit breaker trip control command is sent, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit.
(2) if the power supply dead electricity by the 3rd tranformer protection action, caused, because protection action locking has adopted blocking, the second circuit breaker 2QF combined floodgate charge circuit can be discharged and be blocked, therefore the second circuit breaker 2QF can not move combined floodgate.
(3) if the power supply dead electricity because of the 4th circuit breaker 4QF jump, cause, 4TWJ can be closed, and 4KKJ is still state after closing a floodgate, same the 4th circuit breaker 4QF position that produces is not corresponding, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, after the 3rd transformer with no pressure, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit on inspection.
(4) if manually pull open the 4th circuit breaker 4QF, 4KKJ by original combined floodgate after state become state after separating brake, the position of the 4th circuit breaker 4QF is not corresponding is false, therefore prepared auto restart can not start the closing circuit of the second circuit breaker 2QF.
(iv), 4: the first circuit breaker 1QF of operational mode operation, circuit breaker 2QF, 4QF stand-by heat
1 preparatory stage
The first circuit breaker 1QF is the combined floodgate running status, the 1KK(of its corresponding operating circuit breaker or two-position relay 1KKJ) remember for after closing a floodgate, circuit breaker 2QF, 4QF are stand-by heat, the 2KK of its corresponding operating circuit breaker, 4KK(or two-position relay 2KKJ, 4KKJ) remember for after separating brake.Because 1KK is state after closing a floodgate, so the first circuit breaker 1QF trip(ping) circuit is open, and the closing circuit locking; Open circuit breaker 2QF, 4QF combined floodgate charge circuit 2Tcd2,4Tcd1 charge when circuit breaker 2QF, 4QF meet charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 1 power supply dead electricity
(1) because of inlet wire 1 power supply dead electricity, through the first circuit breaker 1QF inspection with no pressure with after without stream, offside the 4th circuit breaker 4QF power supply, pressure being arranged, the first circuit breaker 1QF tripping operation after time delay tT1.When the first circuit breaker 1QF tripping operation control command has been sent the 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed means that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby it is not corresponding to produce the first circuit breaker 1QF position, the first transformer with no pressure on inspection, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, time delay tH2 starts a closing pulse to the 2QF closing circuit; The 3rd transformer with no pressure on inspection, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.Or the 4th circuit breaker 4QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF tripping operation control command is sent, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.Or second circuit breaker 2QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF circuit breaker trip control command is sent, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit.
(2) if the power supply dead electricity is moved and caused by the first tranformer protection, the second circuit breaker 2QF charge circuit discharges immediately due to the first tranformer protection action, and the second circuit breaker 2QF closing circuit is blocked simultaneously, therefore the second circuit breaker 2QF can not close a floodgate; And the 4th circuit breaker 4QF combined floodgate charge circuit can not be discharged and be blocked, therefore the 4th circuit breaker 4QF still can move combined floodgate.
(3) if the power supply dead electricity because of the first circuit breaker 1QF jump, cause, 1TWJ can be closed, and 1KKJ is still state after closing a floodgate, the same first circuit breaker 1QF position that produces is not corresponding, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd2 has charged, after the first transformer with no pressure, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit on inspection; After the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, after the 3rd transformer with no pressure, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits on inspection.
(4) if manually pull open the first circuit breaker 1QF, 1KKJ by original combined floodgate after state become state after separating brake, the position of the first circuit breaker 1QF is not corresponding is false, therefore prepared auto restart can not start the closing circuit of circuit breaker 2QF, 4QF.
(v), operational mode 5: the four circuit breaker 4QF operations, circuit breaker 1QF, 2QF stand-by heat
1 preparatory stage
The 4th circuit breaker 4QF is the combined floodgate running status, the 4KK(of its corresponding operating circuit breaker or two-position relay 4KKJ) remember for after closing a floodgate, circuit breaker 1QF, 2QF are stand-by heat, the 1KK of its corresponding operating circuit breaker, 2KK(or two-position relay 1KKJ, 2KKJ) remember for after separating brake.Because 4KK is state after closing a floodgate, so the 4th circuit breaker 4QF trip(ping) circuit is open, and the closing circuit locking; Open circuit breaker 1QF, 2QF combined floodgate charge circuit 1Tcd1,2Tcd1 charge when the 4th circuit breaker 1QF, 2QF meet charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 2 power supply dead electricity
(1) because of inlet wire 2 power supply dead electricity, through the 4th circuit breaker 4QF inspection with no pressure with after without stream, offside the first circuit breaker 1QF power supply, pressure being arranged, the 4th circuit breaker 4QF tripping operation after time delay tT4.When the 4th circuit breaker 4QF tripping operation control command has been sent the 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed means that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby it is not corresponding to produce the 4th circuit breaker 4QF position, the first transformer with no pressure on inspection, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit; The 3rd transformer transformer with no pressure on inspection, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit.Or first circuit breaker 1QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF tripping operation control command is sent, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit.Or second circuit breaker 2QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF tripping operation control command is sent, after the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit.
(2) if the power supply dead electricity by the 3rd tranformer protection action, caused, because protection action locking has adopted blocking, the first circuit breaker 1QF combined floodgate charge circuit can not be discharged and be blocked, therefore the first circuit breaker 1QF still can move combined floodgate; And the second circuit breaker 2QF combined floodgate charge circuit can be discharged and be blocked, therefore the second circuit breaker 2QF can not move combined floodgate.
(3) if the power supply dead electricity because of the 4th circuit breaker 4QF jump, cause, 4TWJ can be closed, and 4KKJ is still state after closing a floodgate, same the 4th circuit breaker 4QF position that produces is not corresponding, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, after the first transformer with no pressure, time delay tH1 starts a closing pulse to the 1QF closing circuit on inspection; After the second circuit breaker 2QF combined floodgate charge circuit 2Tcd1 has charged, after the 3rd transformer with no pressure, time delay tH2 starts closing pulse to the second a circuit breaker 2QF closing circuit on inspection.
(4) if manually pull open the 4th circuit breaker 4QF, 4KKJ by original combined floodgate after state become state after separating brake, the position of the 4th circuit breaker 4QF is not corresponding is false, therefore prepared auto restart can not start the closing circuit of circuit breaker 1QF, 2QF.
(vi), signal circuit
1, after each tripping operation exports with combined floodgate, send out immediately the prepared auto restart actuating signal;
2,, after the tranformer protection action, in the time of locking prepared auto restart closing circuit, send out tranformer protection action locking prepared auto restart switching signal;
3, system do not occur extremely, the prepared auto restart normal operation, voltage or current circuit abnormal, the backup auto-activating device abnormal signal is sent out in time delay.
Duplicate supply single bus scheme prepared auto restart specific embodiments
As shown in Figure 4, include the two-way electric power incoming line in the applied transmission and distribution networks of method of the present invention, be serially connected with respectively the first circuit breaker 1QF and the 4th circuit breaker 4QF on the two-way electric power incoming line, be connected to again on bus, two buses also connect respectively two main transformers, i.e. the first main transformer and the 3rd main transformer, or be connected with respectively the load outlet, all be connected to voltage transformer on the line side of two-way electric power incoming line and bus." primary connection mode control word " FS1 put 1 and FS2 set to 0, and FS3 sets to 0 and sets to 0 with FS4, be that (or FS1 sets to 0 with FS2 and sets to 0 prepared auto restart 1 logic, and FS3 put 1 and FS4 set to 0, be prepared auto restart 2 logics), 1BCJ, 2BCJ, 3BCJ are that bus protection or 1BCJ are that inlet wire 1 protection, 3BCJ are inlet wire 2 protections; The first transformer inspection with no pressure, the second transformer inspection with no pressure and the 3rd transformer inspection with no pressure are bus inspection with no pressure.Because FS1 put 1 and FS2 set to 0, and FS3 sets to 0 and sets to 0 with FS4, be that (or FS1 sets to 0 with FS2 and sets to 0 prepared auto restart 1 logic, and FS3 put 1 and FS4 set to 0, be prepared auto restart 2 logics), thus with prepared auto restart 2 logics and the second circuit breaker 2QF(or with prepared auto restart 1 logic and the 3rd circuit breaker 3QF) relevant whole lockings of logical circuit and interrelated logic loop thereof.Below provide the inventive method and be applied to the stand-by power supply embodiment of the single bus scheme form of input (prepared auto restart 1 logic of take is example, and prepared auto restart 2 logic class seemingly) automatically.
(i), operational mode 1
1, operational mode circuit breaker 1QF operation in 1: the first, the 4th circuit breaker 4QF stand-by heat
1 preparatory stage
The first circuit breaker 1QF is the combined floodgate running status, the 1KK(of its corresponding operating circuit breaker or two-position relay 1KKJ) remember for after closing a floodgate, the 4th circuit breaker 4QF is stand-by heat, the 4KK(of its corresponding operating circuit breaker or two-position relay 4KKJ) remember for after separating brake.Because 1KK is state after closing a floodgate, so the first circuit breaker 1QF trip(ping) circuit is open, and the closing circuit locking; Open the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 charges when the 4th circuit breaker 4QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 1 power supply dead electricity
(1) because of inlet wire 1 power supply dead electricity, through the first circuit breaker 1QF inspection with no pressure with after without stream, offside the 4th circuit breaker 4QF power supply, pressure being arranged, the first circuit breaker 1QF tripping operation after time delay tT1.When the first circuit breaker 1QF tripping operation control command has been sent the 1QF tripping operation and check really tripping of the first circuit breaker 1QF, after the first circuit breaker 1QF tripping operation, 1TWJ is closed means that 1QF is in trip position, and 1KKJ is state after closing a floodgate, thereby it is not corresponding to produce the first circuit breaker 1QF position, on inspection after the bus with no pressure, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.Or the 4th circuit breaker 4QF be open position originally, really tripping (becoming open position) of confirmation the first circuit breaker 1QF after the first circuit breaker 1QF tripping operation control command is sent, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits.
(2) if the power supply dead electricity is moved and caused by bus protection or inlet wire 1 protection, the 4th circuit breaker 4QF charge circuit is due to protection action and electric discharge immediately, and the 4th circuit breaker 4QF closing circuit is blocked simultaneously, therefore the 4th circuit breaker 4QF can not close a floodgate.
(3) if the power supply dead electricity because of the first circuit breaker 1QF jump, cause, 1TWJ can be closed, and 1KKJ is still state after closing a floodgate, the same first circuit breaker 1QF position that produces is not corresponding, after the 4th circuit breaker 4QF combined floodgate charge circuit 4Tcd1 has charged, after the bus with no pressure, time delay tH4 starts closing pulse to the four circuit breaker 4QF closing circuits on inspection.
(4) if manually pull open the first circuit breaker 1QF, 1KKJ by original combined floodgate after state become state after separating brake, the position of the first circuit breaker 1QF is not corresponding is false, therefore prepared auto restart can not start the closing circuit of the 4th circuit breaker 4QF.
(ii), operational mode 2: the four circuit breaker 4QF operations, the first circuit breaker 1QF stand-by heat
The 4th circuit breaker 4QF is the combined floodgate running status, the 4KK(of its corresponding operating circuit breaker or two-position relay 4KKJ) remember for after closing a floodgate, the first circuit breaker 1QF is stand-by heat, the 1KK(of its corresponding operating circuit breaker or two-position relay 1KKJ) remember for after separating brake.Because 4KK is state after closing a floodgate, so the 4th circuit breaker 4QF trip(ping) circuit is open, and the closing circuit locking; Open the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 charges when the first circuit breaker 1QF meets charge condition simultaneously, and thoroughly electric discharge immediately while not satisfying condition meets charging again after charge condition.
2 course of action
2.1 inlet wire 2 power supply dead electricity
(1) because of inlet wire 2 power supply dead electricity, through the 4th circuit breaker 4QF inspection with no pressure with after without stream, offside the first circuit breaker 1QF power supply, pressure being arranged, the 4th circuit breaker 4QF tripping operation after time delay tT4.When the 4th circuit breaker 4QF tripping operation control command has been sent the 4QF tripping operation and check really tripping of the 4th circuit breaker 4QF, after the 4th circuit breaker 4QF tripping operation, 4TWJ is closed means that 4QF is in trip position, and 4KKJ is state after closing a floodgate, thereby it is not corresponding to produce the 4th circuit breaker 4QF position, on inspection after the bus with no pressure, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit.Or first circuit breaker 1QF be open position originally, really tripping (becoming open position) of confirmation the 4th circuit breaker 4QF after the 4th circuit breaker 4QF tripping operation control command is sent, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit.
(2) if the power supply dead electricity is moved and caused by bus protection or inlet wire 2 protections, the first circuit breaker 1QF charge circuit is due to protection action and electric discharge immediately, and the first circuit breaker 1QF closing circuit is blocked simultaneously, therefore the first circuit breaker 1QF can not close a floodgate.
(3) if the power supply dead electricity because of the 4th circuit breaker 4QF jump, cause, 4TWJ can be closed, and 4KKJ is still state after closing a floodgate, same the 4th circuit breaker 4QF position that produces is not corresponding, after the first circuit breaker 1QF combined floodgate charge circuit 1Tcd1 has charged, after the bus with no pressure, time delay tH1 starts closing pulse to the first a circuit breaker 1QF closing circuit on inspection.
(4) if manually pull open the 4th circuit breaker 4QF, 4KKJ by original combined floodgate after state become state after separating brake, the position of the 4th circuit breaker 4QF is not corresponding is false, therefore prepared auto restart can not start the closing circuit of the first circuit breaker 1QF.
(iii), signal circuit
1, after each tripping operation exports with combined floodgate, send out immediately the prepared auto restart actuating signal;
2,, after the bus protection action, in the time of locking prepared auto restart closing circuit, send out bus protection action locking prepared auto restart switching signal;
3, system do not occur extremely, the prepared auto restart normal operation, voltage or current circuit abnormal, the backup auto-activating device abnormal signal is sent out in time delay.
Claims (1)
1. a multifunctional microcomputer is controlled the decoupling control method that stand-by power supply drops into automatically, it is characterized in that: it comprises the control method of the control method, internal bridge or the single-trunk segmental wiring that enlarge internal bridge, these three kinds of basic control methods of control method of single bus scheme, wherein:
The control method of described expansion internal bridge prepared auto restart is: it is two internal bridges that standard is enlarged to the internal bridge decoupling zero, form first internal bridge and form second internal bridge by the first circuit breaker 1QF, the 3rd circuit breaker 3QF and the 4th circuit breaker 4QF by the first circuit breaker 1QF, the second circuit breaker 2QF and the 4th circuit breaker 4QF, formed the prepared auto restart logic of a complete expansion internal bridge by the control logic circuit acting in conjunction of these two internal bridges prepared auto restart separately; First internal bridge wherein, the control logic circuit of its prepared auto restart is defined as prepared auto restart 1; Second internal bridge, the control logic circuit of its prepared auto restart is defined as prepared auto restart 2;
In the control logic circuit of above-mentioned prepared auto restart, primary connection mode control word is defined: definition prepared auto restart 1 logic stop and start control word is FS1, puts this logic of 1 expression and enables, and sets to 0 and means this logical disablement; Definition prepared auto restart logic 2 stop and start control words are FS2, put this logic of 1 expression and enable, and set to 0 and mean this logical disablement; Defining the logical circuit stop and start control word relevant with the second circuit breaker 2QF is FS3, puts this logic of 1 expression and enables, and sets to 0 and means this logical disablement; Defining the logical circuit stop and start control word relevant with the 3rd circuit breaker 3QF is FS4, puts this logic of 1 expression and enables, and sets to 0 and means this logical disablement; The primary connection mode is that while enlarging internal bridge, above-mentioned control word FS1 and FS2 put 1, and FS3 and FS4 put 1;
The tripping operation control and the combined floodgate control method that enlarge internal bridge prepared auto restart respective circuit breakers are:
A. the tripping operation of the first circuit breaker 1QF is controlled
Prepared auto restart 1 or prepared auto restart 2: when the first circuit breaker 1QF source current 1I1 is less than the trip inspection no flow setpoint, the first circuit breaker 1QF supply voltage 1U1 is less than trip inspection with no pressure definite value, the 4th circuit breaker 4QF supply voltage 4U1 is greater than trip inspection has compression set value (trip inspection has pressure-controlled word KG1 to put 1) and the first circuit breaker 1QF manually to control the two-position relay 1KKJ (prepared auto restart 1 logic stop and start put 1 with control word FS1 or prepared auto restart 2 logic stop and start with control word FS2) when these conditions of rear position of closing a floodgate meet simultaneously of circuit breaker 1KK or its deciliter state, through certain time delay tT1, to the first circuit breaker 1QF tripping operation control loop output pulse control signal, make the first circuit breaker 1QF tripping operation, export in-put of spare power supply tripping operation actuating signal simultaneously,
B. the tripping operation of the 4th circuit breaker 4QF is controlled
Prepared auto restart 1 or prepared auto restart 2: when the 4th circuit breaker 4QF source current 4I1 is less than the trip inspection no flow setpoint, the 4th circuit breaker 4QF supply voltage 4U1 is less than trip inspection with no pressure definite value, the first circuit breaker 1QF supply voltage 1U1 is greater than trip inspection has compression set value (trip inspection has pressure-controlled word KG1 to put 1) and the 4th circuit breaker 4QF manually to control the two-position relay 4KKJ (prepared auto restart 1 logic stop and start put 1 with control word FS1 or prepared auto restart 2 logic stop and start with control word FS2) when these conditions of rear position of closing a floodgate meet simultaneously of circuit breaker 4KK or its deciliter state, through certain time delay tT4, to the 4th circuit breaker 4QF tripping operation control loop output pulse control signal, make the 4th circuit breaker 4QF tripping operation, export in-put of spare power supply tripping operation actuating signal simultaneously,
C. the first circuit breaker 1QF closes a floodgate and discharges and recharges control
The C-1 discharging condition
Prepared auto restart 1 discharging condition 1
(1) when two-position relay 1KKJ position after closing a floodgate of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(2) when two-position relay 4KKJ position after separating brake of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(3) primary connection mode control word FS1 is 0;
(4) when the first tranformer protection action;
(5) send the combined floodgate control command as the first circuit breaker 1QF;
Prepared auto restart 1 discharging condition 2
(1) when two-position relay 1KKJ position after closing a floodgate of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(2) when two-position relay 2KKJ position after separating brake of hand control switch 2KK or its deciliter state of the second circuit breaker 2QF;
(3) primary connection mode control word FS1 is 0;
(4) when the first tranformer protection action;
(5) send the combined floodgate control command as the first circuit breaker 1QF;
Prepared auto restart 2 discharging conditions 1
(1) when two-position relay 1KKJ position after closing a floodgate of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(2) when two-position relay 4KKJ position after separating brake of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(3) primary connection mode control word FS2 is 0;
(4) when the first tranformer protection action;
(5) send the combined floodgate control command as the first circuit breaker 1QF;
Prepared auto restart 2 discharging conditions 2
(1) when two-position relay 1KKJ position after closing a floodgate of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(2) when two-position relay 3KKJ position after separating brake of hand control switch 3KK or its deciliter state of the 3rd circuit breaker 3QF;
(3) primary connection mode control word FS2 is 0;
(4) when the first tranformer protection action;
(5) send the combined floodgate control command as the first circuit breaker 1QF;
The C-2 charge condition
Prepared auto restart 1 charge condition 1
(1) when two-position relay 4KKJ position after closing a floodgate of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(2) when two-position relay 1KKJ position after separating brake of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(3) as the open position relay 1TWJ of the first circuit breaker 1QF in operate condition;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the first circuit breaker 1QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 1Tcd1, can be made as 20 seconds);
Prepared auto restart 1 charge condition 2
(1) when two-position relay 2KKJ position after closing a floodgate of the second circuit breaker 2QF hand control switch 2KK or its deciliter state;
(2) when two-position relay 1KKJ position after separating brake of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(3) as the open position relay 1TWJ of the first circuit breaker 1QF in operate condition;
(4) primary connection mode control word FS3 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the first circuit breaker 1QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 1Tcd2, can be made as 20 seconds);
Prepared auto restart 2 charge conditions 1
(1) when two-position relay 4KKJ position after closing a floodgate of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(2) when two-position relay 1KKJ position after separating brake of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(3) as the open position relay 1TWJ of the first circuit breaker 1QF in operate condition;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the first circuit breaker 1QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 1Tcd3, can be made as 20 seconds);
Prepared auto restart 2 charge conditions 2
(1) when two-position relay 3KKJ position after closing a floodgate of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state;
(2) when two-position relay 1KKJ position after separating brake of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(3) as the open position relay 1TWJ of the first circuit breaker 1QF in operate condition;
(4) primary connection mode control word FS4 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the first circuit breaker 1QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 1Tcd4, can be made as 20 seconds);
D. the first circuit breaker 1QF closes a floodgate and controls
D-1 prepared auto restart 1 first circuit breaker 1QF closes a floodgate and controls one
(1) when the first circuit breaker 1QF be open position originally, and really tripping of the 4th circuit breaker 4QF has been sent and checked to the 4th circuit breaker 4QF tripping operation control command; Or be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the first transformer side voltage, simultaneously the two-position relay 4KKJ of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state in close a floodgate rear position and the 4th circuit breaker 4QF in open position (the 4th circuit breaker 4QF position is not corresponding);
(2) 1Tcd1 charging delay time arrives;
(3) first tranformer protections are action not;
When above condition meets, output pulse control signal to the first circuit breaker 1QF combined floodgate control loop after time delay (delay time is tH1), the first circuit breaker 1QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
D-2 prepared auto restart 1 first circuit breaker 1QF closes a floodgate and controls two
(1) when being less than to close a floodgate, the first transformer side voltage examines with no pressure definite value (when the inspection with no pressure control word KG2 that closes a floodgate is 1), simultaneously the two-position relay 2KKJ of the second circuit breaker 2QF hand control switch 2KK or its deciliter state in close a floodgate rear position and the second circuit breaker 2QF in open position (the second circuit breaker 2QF position is not corresponding, and the while, primary connection mode control word FS3 was set to 1);
(2) 1Tcd2 charging delay time arrives;
(3) first tranformer protections are action not;
When above condition meets, output pulse control signal to the first circuit breaker 1QF combined floodgate control loop after time delay (delay time is tH1), the first circuit breaker 1QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
D-3 prepared auto restart 2 first circuit breaker 1QF close a floodgate and control one
(1) when the first circuit breaker 1QF be open position originally, and really tripping of the 4th circuit breaker 4QF has been sent and checked to the 4th circuit breaker 4QF tripping operation control command; Or be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the first transformer side voltage, simultaneously the two-position relay 4KKJ of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state in close a floodgate rear position and the 4th circuit breaker 4QF in open position (the 4th circuit breaker 4QF position is not corresponding);
(2) 1Tcd3 charging delay time arrives;
(3) first tranformer protections are action not;
When above condition meets, output pulse control signal to the first circuit breaker 1QF combined floodgate control loop after time delay (delay time is tH1), the first circuit breaker 1QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
D-2 prepared auto restart 2 first circuit breaker 1QF close a floodgate and control two
(1) be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the first transformer side voltage, simultaneously the two-position relay 3KKJ of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state in close a floodgate rear position and the 3rd circuit breaker 3QF in open position (the 3rd circuit breaker 3QF position is not corresponding);
(2) 1Tcd4 charging delay time arrives;
(3) first tranformer protections are action not;
When above condition meets, output pulse control signal to the first circuit breaker 1QF combined floodgate control loop after time delay (delay time is tH1), the first circuit breaker 1QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
E. the second circuit breaker 2QF closes a floodgate and discharges and recharges control
The E-1 discharging condition
Prepared auto restart 1 discharging condition 1
(1) when two-position relay 2KKJ position after closing a floodgate of hand control switch 2KK or its deciliter state of the second circuit breaker 2QF;
(2) when two-position relay 4KKJ position after separating brake of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(3) primary connection mode control word FS1 is 0;
(4) when the second tranformer protection action;
(5) send the combined floodgate control command as the second circuit breaker 2QF;
Prepared auto restart 1 discharging condition 2
(1) when two-position relay 2KKJ position after closing a floodgate of hand control switch 2KK or its deciliter state of the second circuit breaker 2QF;
(2) when two-position relay 1KKJ position after separating brake of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(3) primary connection mode control word FS1 is 0;
(4) when the first tranformer protection action;
(5) send the combined floodgate control command as the second circuit breaker 2QF;
The E-2 charge condition
Prepared auto restart 1 charge condition 1
(1) when two-position relay 4KKJ position after closing a floodgate of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(2) when two-position relay 2KKJ position after separating brake of the second circuit breaker 2QF hand control switch 2KK or its deciliter state;
(3) as the open position relay 2TWJ of the second circuit breaker 2QF in operate condition;
(4) primary connection mode control word FS3 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the second circuit breaker 2QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 2Tcd1, can be made as 20 seconds);
Prepared auto restart 1 charge condition 2
(1) when two-position relay 1KKJ position after closing a floodgate of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(2) when two-position relay 2KKJ position after separating brake of the second circuit breaker 2QF hand control switch 2KK or its deciliter state;
(3) as the open position relay 2TWJ of the second circuit breaker 2QF in operate condition;
(4) primary connection mode control word FS3 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the second circuit breaker 2QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 2Tcd2, can be made as 20 seconds);
F. the second circuit breaker 2QF closes a floodgate and controls
F-1 prepared auto restart 1 second circuit breaker 2QF closes a floodgate and controls one
(1) when the second circuit breaker 2QF be open position originally, and send and check really tripping of the 4th circuit breaker 4QF when the 4th circuit breaker 4QF tripping operation control command; Or be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the second transformer side voltage, simultaneously the two-position relay 4KKJ of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state in close a floodgate rear position and the two-position relay 3KKJ of the 4th circuit breaker 4QF in open position (the 4th circuit breaker 4QF position is not corresponding) or while the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state in close a floodgate rear position and the 3rd circuit breaker 3QF in open position (the 3rd circuit breaker 3QF position is not corresponding);
(2) 2Tcd1 charging delay time arrives;
(3) second tranformer protections are action not;
When above condition meets, output pulse control signal to the second circuit breaker 2QF combined floodgate control loop after time delay (delay time is tH2), the second circuit breaker 2QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
F-2 prepared auto restart 1 second circuit breaker 2QF closes a floodgate and controls two
(1) when the second circuit breaker 2QF be open position originally, and really tripping of the first circuit breaker 1QF has been sent and checked to the first circuit breaker 1QF tripping operation control command; Or be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the first transformer side voltage, simultaneously the two-position relay 1KKJ of the first circuit breaker 1QF hand control switch 1KK or its deciliter state in close a floodgate rear position and the first circuit breaker 1QF in open position (the first circuit breaker 1QF position is not corresponding);
(2) 2Tcd2 charging delay time arrives;
(3) first tranformer protections are action not;
When above condition meets, output pulse control signal to the second circuit breaker 2QF combined floodgate control loop after time delay (delay time is tH2), the second circuit breaker 2QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
G. the 3rd circuit breaker 3QF closes a floodgate and discharges and recharges control
The G-1 discharging condition
Prepared auto restart 2 discharging conditions 1
(1) when two-position relay 3KKJ position after closing a floodgate of hand control switch 3KK or its deciliter state of the 3rd circuit breaker 3QF;
(2) when two-position relay 4KKJ position after separating brake of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(3) primary connection mode control word FS2 is 0;
(4) when the 3rd tranformer protection action;
(5) send the combined floodgate control command as the 3rd circuit breaker 3QF;
Prepared auto restart 2 discharging conditions 2
(1) when two-position relay 3KKJ position after closing a floodgate of hand control switch 3KK or its deciliter state of the 3rd circuit breaker 3QF;
(2) when two-position relay 1KKJ position after separating brake of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(3) primary connection mode control word FS2 is 0;
(4) when the second tranformer protection action;
(5) send the combined floodgate control command as the 3rd circuit breaker 3QF;
The G-2 charge condition
Prepared auto restart 1 charge condition 1
(1) when two-position relay 4KKJ position after closing a floodgate of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(2) when two-position relay 3KKJ position after separating brake of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state;
(3) as the open position relay 3TWJ of the 3rd circuit breaker 3QF in operate condition;
(4) primary connection mode control word FS4 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the 3rd circuit breaker 3QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 3Tcd1, can be made as 20 seconds);
Prepared auto restart 2 charge conditions 2
(1) when two-position relay 1KKJ position after closing a floodgate of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(2) when two-position relay 3KKJ position after separating brake of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state;
(3) as the open position relay 3TWJ of the 3rd circuit breaker 3QF in operate condition;
(4) primary connection mode control word FS4 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the second circuit breaker 2QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 3Tcd2, can be made as 20 seconds);
H. the 3rd circuit breaker 3QF closes a floodgate and controls
H-1 prepared auto restart 2 the 3rd circuit breaker 3QF closes a floodgate and controls one
(1) when the 3rd circuit breaker 3QF be open position originally, and really tripping of the 4th circuit breaker 4QF has been sent and checked to the 4th circuit breaker 4QF tripping operation control command; Or be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the 3rd transformer side voltage, simultaneously the two-position relay 4KKJ of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state in close a floodgate rear position and the 4th circuit breaker 4QF in open position (the 4th circuit breaker 4QF position is not corresponding);
(2) 3Tcd1 charging delay time arrives;
(3) the 3rd tranformer protections are action not;
When above condition meets, output pulse control signal to the three circuit breaker 3QF combined floodgate control loops after time delay (delay time is tH3), the 3rd circuit breaker 3QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
H-2 prepared auto restart 2 the 3rd circuit breaker 3QF closes a floodgate and controls two
(1) when the 3rd circuit breaker 3QF be open position originally, and really tripping of the first circuit breaker 1QF has been sent and checked to the first circuit breaker 1QF tripping operation control command; Or be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the second transformer side voltage, simultaneously the two-position relay 1KKJ of the first circuit breaker 1QF hand control switch 1KK or its deciliter state in close a floodgate rear position and the two-position relay 2KKJ of the first circuit breaker 1QF in open position (the first circuit breaker 1QF position is not corresponding) or the second circuit breaker 2QF hand control switch 2KK or its deciliter state in close a floodgate rear position and the second circuit breaker 2QF in open position (the second circuit breaker 2QF position is not corresponding);
(2) 3Tcd2 charging delay time arrives;
(3) second tranformer protections are action not;
When above condition meets, output pulse control signal to the three circuit breaker 3QF combined floodgate control loops after time delay (delay time is tH3), the 3rd circuit breaker 3QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
I.4QF breaker closing discharges and recharges control
The I-1 discharging condition
Prepared auto restart 1 discharging condition 1
(1) when two-position relay 4KKJ position after closing a floodgate of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(2) when two-position relay 1KKJ position after separating brake of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(3) primary connection mode control word FS1 is 0;
(4) when the 3rd tranformer protection action;
(5) send the combined floodgate control command as the 4th circuit breaker 4QF;
Prepared auto restart 1 discharging condition 2
(1) when two-position relay 4KKJ position after closing a floodgate of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(2) when two-position relay 2KKJ position after separating brake of hand control switch 2KK or its deciliter state of the second circuit breaker 2QF;
(3) primary connection mode control word FS1 is 0;
(4) when the 3rd tranformer protection action;
(5) send the combined floodgate control command as the 4th circuit breaker 4QF;
Prepared auto restart 2 discharging conditions 1
(1) when two-position relay 4KKJ position after closing a floodgate of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(2) when two-position relay 1KKJ position after separating brake of hand control switch 1KK or its deciliter state of the first circuit breaker 1QF;
(3) primary connection mode control word FS2 is 0;
(4) when the 3rd tranformer protection action;
(5) send the combined floodgate control command as the 4th circuit breaker 4QF;
Prepared auto restart 2 discharging conditions 2
(1) when two-position relay 4KKJ position after closing a floodgate of hand control switch 4KK or its deciliter state of the 4th circuit breaker 4QF;
(2) when two-position relay 3KKJ position after separating brake of hand control switch 3KK or its deciliter state of the 3rd circuit breaker 3QF;
(3) primary connection mode control word FS2 is 0;
(4) when the 3rd tranformer protection action;
(5) send the combined floodgate control command as the 4th circuit breaker 4QF;
The I-2 charge condition
Prepared auto restart 1 charge condition 1
(1) when two-position relay 1KKJ position after closing a floodgate of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(2) when two-position relay 4KKJ position after separating brake of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(3) as the open position relay 4TWJ of the 4th circuit breaker 4QF in operate condition;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the 4th circuit breaker 4QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 4Tcd1, can be made as 20 seconds);
Prepared auto restart 1 charge condition 2
(1) when two-position relay 2KKJ position after closing a floodgate of the second circuit breaker 2QF hand control switch 2KK or its deciliter state;
(2) when two-position relay 4KKJ position after separating brake of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(3) as the open position relay 4TWJ of the 4th circuit breaker 4QF in operate condition;
(4) primary connection mode control word FS3 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the 4th circuit breaker 4QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 4Tcd2, can be made as 20 seconds);
Prepared auto restart 2 charge conditions 1
(1) when two-position relay 1KKJ position after closing a floodgate of the first circuit breaker 1QF hand control switch 1KK or its deciliter state;
(2) when two-position relay 4KKJ position after separating brake of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(3) as the open position relay 4TWJ of the 4th circuit breaker 4QF in operate condition;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, complete the charging of closing a floodgate as the 4th circuit breaker 4QF and control after charging time delay (delay time is 4Tcd3, can be made as 20 seconds);
Prepared auto restart 2 charge conditions 2
(1) when two-position relay 3KKJ position after closing a floodgate of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state;
(2) when two-position relay 4KKJ position after separating brake of the 4th circuit breaker 4QF hand control switch 4KK or its deciliter state;
(3) as the open position relay 4TWJ of the 4th circuit breaker 4QF in operate condition;
(4) primary connection mode control word FS4 is 1;
When above-mentioned arbitrary charge condition meets and arbitrary discharging condition while not meeting, the 4th circuit breaker 4QF completes the charging of closing a floodgate and controls after charging time delay (delay time is 4Tcd4, can be made as 20 seconds);
J. the 4th circuit breaker 4QF closes a floodgate and controls
J-1 prepared auto restart 1 the 4th circuit breaker 4QF closes a floodgate and controls one
(1) when the 4th circuit breaker 4QF be open position originally, and really tripping of the first circuit breaker 1QF has been sent and checked to the first circuit breaker 1QF tripping operation control command; Or be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the 3rd transformer side voltage, simultaneously the two-position relay 1KKJ of the first circuit breaker 1QF hand control switch 1KK or its deciliter state in close a floodgate rear position and the first circuit breaker 1QF in open position (the first circuit breaker 1QF position is not corresponding);
(2) 4Tcd1 charging delay time arrives;
(3) the 3rd tranformer protections are action not;
When above condition meets, output pulse control signal to the four breaker closing control loops after time delay (delay time is tH4), the 4th circuit breaker 4QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
J-2 prepared auto restart 1 the 4th circuit breaker 4QF closes a floodgate and controls two
(1) be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the 3rd transformer side voltage, simultaneously the two-position relay 2KKJ of the second circuit breaker 2QF hand control switch 2KK or its deciliter state in close a floodgate rear position and the second circuit breaker 2QF in open position (the second circuit breaker 2QF position is not corresponding);
(2) 4Tcd2 charging delay time arrives;
(3) the 3rd tranformer protections are action not;
When above condition meets, output pulse control signal to the four circuit breaker 4QF combined floodgate control loops after time delay (delay time is tH4), the 4th circuit breaker 4QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
J-3 prepared auto restart 2 the 4th circuit breaker 4QF closes a floodgate and controls one
(1) when the 4th circuit breaker 4QF be open position originally, and really tripping of the first circuit breaker 1QF has been sent and checked to the first circuit breaker 1QF tripping operation control command; Or be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the 3rd transformer side voltage, simultaneously the two-position relay 1KKJ of the first circuit breaker 1QF hand control switch 1KK or its deciliter state in close a floodgate rear position and the first circuit breaker 1QF in open position (the first circuit breaker 1QF position is not corresponding);
(2) 4Tcd3 charging delay time arrives;
(3) the 3rd tranformer protections are action not;
When above condition meets, output pulse control signal to the four circuit breaker 4QF combined floodgate control loops after time delay (delay time is tH4), the 4th circuit breaker 4QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
J-4 prepared auto restart 2 the 4th circuit breaker 4QF closes a floodgate and controls two
(1) be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the 3rd transformer side voltage, simultaneously the two-position relay 3KKJ of the 3rd circuit breaker 3QF hand control switch 3KK or its deciliter state in close a floodgate rear position and the 3rd circuit breaker 3QF in open position (the 3rd circuit breaker 3QF position is not corresponding);
(2) 4Tcd4 charging delay time arrives;
(3) the 3rd tranformer protections are action not;
When above condition meets, output pulse control signal to the four circuit breaker 4QF combined floodgate control loops after time delay (delay time is tH4), the 4th circuit breaker 4QF closes a floodgate, and exports in-put of spare power supply feed motion signal simultaneously;
K. abnormal signal is controlled
K-1 prepared auto restart 1 abnormal signal is controlled
(1) be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the first transformer side or the second transformer side or the 3rd transformer side voltage, send abnormal signal after certain time-delay;
(2) do not send the tripping operation control command as the first circuit breaker 1QF, and the first circuit breaker 1QF source current 1I1 is less than trip inspection no flow setpoint or the first two-position relay 1KKJ that circuit breaker 1QF supply voltage 1U1 is less than trip inspection with no pressure definite value and the first circuit breaker 1QF manually controls circuit breaker 1KK or its deciliter state when closing a floodgate rear position, sends abnormal signal after certain time-delay;
(3) do not send the tripping operation control command as the 4th circuit breaker 4QF, and the 4th circuit breaker 4QF source current 4I1 is less than trip inspection no flow setpoint or the 4th two-position relay 4KKJ that circuit breaker 4QF supply voltage 4U1 is less than trip inspection with no pressure definite value and the 4th circuit breaker 4QF manually controls circuit breaker 4KK or its deciliter state when closing a floodgate rear position, sends abnormal signal after certain time-delay;
K-2 prepared auto restart 2 abnormal signals are controlled
(1) be less than the inspection with no pressure definite value of closing a floodgate (when the inspection with no pressure control word KG2 that closes a floodgate is 1) when the first transformer side or the second transformer side or the 3rd transformer side voltage, send abnormal signal after certain time-delay;
(2) do not send the tripping operation control command as the first circuit breaker 1QF, and the first circuit breaker 1QF source current 1I1 is less than trip inspection no flow setpoint or the first two-position relay 1KKJ that circuit breaker 1QF supply voltage 1U1 is less than trip inspection with no pressure definite value and the first circuit breaker 1QF manually controls circuit breaker 1KK or its deciliter state when closing a floodgate rear position, sends abnormal signal after certain time-delay;
(3) do not send the tripping operation control command as the 4th circuit breaker 4QF, and the 4th circuit breaker 4QF source current 4I1 is less than trip inspection no flow setpoint or the 4th two-position relay 4KKJ that circuit breaker 4QF supply voltage 4U1 is less than trip inspection with no pressure definite value and the 4th circuit breaker 4QF manually controls circuit breaker 4KK or its deciliter state when closing a floodgate rear position, sends abnormal signal after certain time-delay;
The control method of described internal bridge or single-trunk segmental wiring prepared auto restart is: when operational mode is internal bridge or during for single-trunk segmental wiring, on the control logic circuit basis of above-mentioned expansion internal bridge, by the control word FS1 of primary connection mode put 1 and FS2 set to 0, simultaneously FS3 put 1 and FS4 set to 0; Perhaps the control word FS1 of primary connection mode is set to 0 with FS2 and puts 1, FS3 sets to 0 with FS4 and puts 1 simultaneously;
The control method of described single bus scheme is: when an operational mode is single bus scheme, on the control logic logical circuit basis of above-mentioned expansion internal bridge, by the control word FS1 of primary connection mode put 1 and FS2 set to 0, simultaneously control word FS3 sets to 0 with FS4 and sets to 0; Perhaps the control word FS1 of primary connection mode is set to 0 with FS2 and puts 1, control word FS3 sets to 0 with FS4 and sets to 0 simultaneously.
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