CN103280881A - Decoupling control method for controlling automatic switching of backup power supply by expansion inner bridge connection wire microcomputer - Google Patents
Decoupling control method for controlling automatic switching of backup power supply by expansion inner bridge connection wire microcomputer Download PDFInfo
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- CN103280881A CN103280881A CN201310146712XA CN201310146712A CN103280881A CN 103280881 A CN103280881 A CN 103280881A CN 201310146712X A CN201310146712X A CN 201310146712XA CN 201310146712 A CN201310146712 A CN 201310146712A CN 103280881 A CN103280881 A CN 103280881A
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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 the electric power transmission and distribution network control technology, and relates to a decoupling control method for controlling automatic switching of a backup power supply by an expansion inner bridge connection wire microcomputer. According to the method, a standard expansion inner bridge connection wire is decoupled into two inner bridge connection wires, i.e., a first circuit breaker 1QF, a second circuit breaker 2QF and a fourth circuit breaker 4QF form a first inner bridge connection wire, the first circuit breaker 1QF, a third circuit breaker 3QF and the fourth circuit breaker 4QF form a second inner bridge connection wire, and respective backup power supply automatic switching control logic circuits of the two inner bridge connection wires simultaneously act for forming a complete backup power supply automatic switching logic of the expansion inner bridge connection wires. The method provided by the invention can be applied to automatic switching devices of the backup power supply of the expansion inner bridge connection wires in substations in the power transmission and distribution network at the voltage level being 220kv or lower than 220kv adopting primary main connection wires for supplying power for double power supplies, in addition, the action principle is simple, the reliability is high, and the method completely conforms to the basic principle of the automatic switching of the backup power supply.
Description
Technical field
The invention belongs to the control technology of power transmission and distribution network, relate to a kind of decoupling control method that the internal bridge microcomputer control standby power drops into automatically that enlarges.
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.And although the manufactory that main electrical scheme of electric substation is the automatic throw-in equipment of emergency power supply prepared auto restart of expansion internal bridge produced, the control method that this automatic throw-in equipment of emergency power supply adopts and basic principle are the operational modes by prior setting, and setting process completes under this operational mode, operational mode also fails to contain fully the internal bridge whole service mode that enlarges.Enlarge the internal bridge stand-by power supply scheme of input automatically although patent of invention CN101436787 and patent of invention CN10240783A have proposed to plant in " enlarging the automatic method dropped into of microcomputer control standby power of internal bridge ", the realization of 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.
Summary of the invention
Problem to be solved by this invention is, provide a kind of automatic throw-in equipment of emergency power supply that can be applied to the expansion internal bridge that main electrical scheme of transmission and distribution networks 220kV and following electric pressure electric substation is dual power supply, and operating principle is simple, reliability is high, meet the stand-by power supply decoupling control method that the expansion internal bridge microcomputer control standby power of the basic principle of input drops into automatically automatically fully.
Below provide the technical scheme of the inventive method:
At the applied transmission and distribution networks of method of the present invention, be 220kV and main electrical scheme network of following electric pressure electric substation's expansion internal bridge; The decoupling control method that this expansion internal bridge microcomputer control standby power drops into automatically 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;
Tripping operation control and the combined floodgate control method of this expansion 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 of circuit breaker 1KK or its deciliter state when these conditions of rear position of closing a floodgate meet simultaneously, 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 of circuit breaker 4KK or its deciliter state when these conditions of rear position of closing a floodgate meet simultaneously, 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) when the first tranformer protection action;
(4) 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) when the first tranformer protection action;
(4) 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) when the first tranformer protection action;
(4) 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) when the first tranformer protection action;
(4) 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;
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;
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) 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 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) 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-4 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.2QF breaker closing 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) when the second tranformer protection action;
(4) 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) when the first tranformer protection action;
(4) 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;
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;
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 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 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) when the 3rd tranformer protection action;
(4) send the combined floodgate control command as the 3rd circuit breaker 2QF;
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) when the second tranformer protection action;
(4) 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;
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;
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) when the 3rd tranformer protection action;
(4) 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) when the 3rd tranformer protection action;
(4) 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) when the 3rd tranformer protection action;
(4) 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) when the 3rd tranformer protection action;
(4) 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;
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;
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;
(4) 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 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 technical scheme of the automatic throw-in equipment of emergency power supply of a main electrical scheme of bridge in the 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 enlarges.
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 that the inventive method embodiment is for bridge prepared auto restart 1 theory diagram in the decoupling zero that enlarges interior bridge prepared auto restart;
Fig. 3 is that the inventive method embodiment is for bridge prepared auto restart 2 theory diagrams in the decoupling zero that enlarges interior bridge prepared auto restart.
Embodiment
Control word in Fig. 2, Fig. 3 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 |
In Fig. 2, Fig. 3, 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. 2, Fig. 3, symbol description is as follows:
-expression charging delay time;
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.1BCJ is that the first tranformer protection, 2BCJ are that the second tranformer protection, 3BCJ are the 3rd tranformer protection;<1U2 the first transformer inspection with no pressure 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.
Claims (1)
1. one kind enlarges the decoupling control method that the internal bridge microcomputer control standby power drops into automatically, it is characterized in that: 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;
Tripping operation control and the combined floodgate control method of this expansion internal bridge prepared auto restart respective circuit breakers are:
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 of circuit breaker 1KK or its deciliter state when these conditions of rear position of closing a floodgate meet simultaneously, 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,
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 of circuit breaker 4KK or its deciliter state when these conditions of rear position of closing a floodgate meet simultaneously, 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,
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) when the first tranformer protection action;
(4) 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) when the first tranformer protection action;
(4) 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) when the first tranformer protection action;
(4) 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) when the first tranformer protection action;
(4) 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;
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;
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-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) 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 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) 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-4 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;
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) when the second tranformer protection action;
(4) 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) when the first tranformer protection action;
(4) 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;
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;
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-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 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 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;
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) when the 3rd tranformer protection action;
(4) send the combined floodgate control command as the 3rd circuit breaker 2QF;
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) when the second tranformer protection action;
(4) 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;
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;
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-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;
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) when the 3rd tranformer protection action;
(4) 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) when the 3rd tranformer protection action;
(4) 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) when the 3rd tranformer protection action;
(4) 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) when the 3rd tranformer protection action;
(4) 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;
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;
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-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-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.
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| CN103280881B (en) | 2015-03-04 |
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