CN101980419A - Automatic control device for vacuum circuit breaker on electric distribution network - Google Patents
Automatic control device for vacuum circuit breaker on electric distribution network Download PDFInfo
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- CN101980419A CN101980419A CN2010105805808A CN201010580580A CN101980419A CN 101980419 A CN101980419 A CN 101980419A CN 2010105805808 A CN2010105805808 A CN 2010105805808A CN 201010580580 A CN201010580580 A CN 201010580580A CN 101980419 A CN101980419 A CN 101980419A
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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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
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- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
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Abstract
The invention relates to an automatic control device for a vacuum circuit breaker on an electric distribution network. The control circuit of the device mainly comprises a signal acquisition and working power supply unit, a logic judgment unit, a man-machine interface and an execution mechanism which are connected. The control device can be matched with the vacuum circuit breaker on the electric distribution network; when the electric distribution network fails, logic judgment can be performed according to acquired information and a failure area is quickly identified and isolated; meanwhile, the normal power supply of a non-failure area is recovered, power failure areas caused by the failure are greatly reduced and power failure time is shortened; and work amount is greatly reduced and the safety factor of field operation is improved. The control device has a simple structure, a reasonable design, safe and reliable performance and low cost, and is flexible and convenient to operate and convenient to install and maintain.
Description
Technical field
The present invention relates to a kind of device that is applied to the power distribution circuit, particularly a kind of power distribution network vacuum circuit-breaker automatic control equipment.
Background technology
At present, power distribution network increases rapidly with power supply reliability with town and country construction scale and power load and requires and constantly development, the structure of distribution becomes increasingly complex, the scheduling of distribution and the demand of managing incompatibility town and country power supply, therefore with regard to most distribution networks, from the discovery of single failure, isolate the time of recovering non-fault zone normal power supply and generally all need several hrs, had a strong impact on resident's normal life and industrial and agricultural production, outstanding be reflected as following some:
1, the mode of searching main employing line walking inspection of fault point, there are problems such as inefficiency, very difficult fault location point in this mode, thereby causes the line outage overlong time;
2, power distribution network under-capitalization, ageing equipment and technical performance are inferior, and accident of power supply is frequent, and the fault of a branched line causes large area blackout completely often;
3, distribution automation improvement cost height, often the transformation of a circuit just needs millions of even up to ten million inputs, has caused the distribution automation construction very slow.
Therefore, provide a kind of reasonable in design, performance is safe and reliable, application is easy, the significant power distribution network vacuum circuit-breaker of practical function automatic control equipment, is one of these those skilled in the art problem that should address.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, provide a kind of reasonable in design, performance is safe and reliable, application is easy, the significant power distribution network vacuum circuit-breaker of practical function automatic control equipment.
Implementation of the present invention is as follows for achieving the above object: a kind of power distribution network vacuum circuit-breaker automatic control equipment is characterized in that this device control circuit is is mainly connected and composed by signals collecting and working power unit, logic judgment unit, man-machine interface and actuator; This device is according to the voltage of the circuit breaker left and right sides that collects on the distribution line and the state of electric current, by voltage transformer and current transformer acquired signal is carried out step-down and fallen stream, after carrying out secondary step-down and rectification again, the output direct current signal, by with the comparison of fiducial value, the output switching value is given logic judgment unit, and logic judgment unit is exported combined floodgate, tripping operation, locking and energy storage control signal automatically according to the switching value state that is received and controlled circuit breaker.
Described signal gathering unit circuit comprises collection and current signals two parts of voltage signal;
The voltage signal acquisition circuit is by two voltage transformers, high pressure on the distribution line is reduced to line voltage, voltage between one of them instrument transformer collection primary cut-out left side A, the B two-phase is as left voltage, and the voltage between another instrument transformer collection primary cut-out right side B, the C two-phase is as right voltage; Behind left voltage U AB that obtains collecting and right voltage U BC, output dc voltage signal S1 and S2 give logic judgment unit behind sampling resistor sampling, rectification circuit rectification, capacitor filtering;
Be directed to the current signal Acquisition Circuit, the A that two great current mutual inductors are installed in primary cut-out respectively mutually with C loop mutually in, convert the secondary current of its output to voltage signal by two current transformers once more, through the sampling resistor sampling, two of outputs can reflect that the d. c. voltage signal Sa of electric current situation of change and Sb give logic judgment unit behind rectification circuit rectification, the capacitor filtering.
Described working power element circuit is by two voltage transformers, high pressure on the distribution line is reduced to line voltage, voltage between one of them instrument transformer collection primary cut-out left side A, the B two-phase is as left voltage, and the voltage between another instrument transformer collection primary cut-out right side B, the C two-phase is as right voltage; These two voltages are in parallel again to form two groups, and wherein one group through the rectification circuit rectification, and capacitor filtering offers the motor of circuit breaker, is offered by motor and closes a floodgate and breaking coil; Other one group through the rectification circuit rectification, electric pass filter is exported to the DC/DC module, is controller power supply by DC/DC module output+12V voltage, simultaneously the DC/DC module export to the super capacitor charging, make it become reliable stand-by power supply.
Described logic judgment unit circuit comprises gate circuit and comparator, exports corresponding combined floodgate, tripping operation, locking and energy storage instruction by logical combination;
Four road signal S1, S2, Sa and the Sb that collects be input to respectively in four comparators compare with fiducial value, the comparative result of two-way voltage signal and electric current carries out respectively or operates, then the output behind the logic OR is carried out and operation, the trip signal of signal and keyboard input carries out or operates and export the tripping operation control signal afterwards then;
Voltage signal S1 that two-way is collected and S2 are input to respectively in the comparator and compare with fiducial value, the signal of output respectively with the inversion signal of another signal and operation after output carry out again or operate, the result behind the logic OR and fault whether remember carry out with operation after the switching signal imported with keyboard again of signal carry out or operate after export energization control signal;
Carry out after the voltage signal Sa of the expression electric current situation of change that two-way is collected and Sb are input in the comparator and compare with fiducial value or operate, with the signal behind the logic OR with by the combined floodgate that collects on the circuit breaker whether signal carry out and operation, again with the locking of the signal behind the logical AND and keyboard input whether signal carry out or operate after export the locking control signal;
To carry out after comparing with fiducial value in the comparator of the left and right sides two-way voltage signal S1 that collects and S2 input or operate, with the signal behind the logic OR with by the tripping operation that collects on the circuit breaker whether, whether signal carries out exporting the energy storage control signal with the operation back in locking.
Described man-machine interface circuit comprises the push-button switch of control operation, comprises combined floodgate switch, trip switch, latch switch; Switch adopts low level effective, and their unified connected modes are the side joint ground with switch, and opposite side links to each other with+3.3V power supply by pull-up resistor, and resistance is not connected a side as output with power supply, and when button is pressed, output ground connection is useful signal.
Described actuating mechanism circuit comprises the release of energy storage relay, blocking relay, closing relay, tripping relay and a control locking;
The one side joint ground, Inside coil two ends of described energy storage relay, another side joint is by the energy storage signal of logic judgment unit output, its normally closed switch is unsettled, one side of normal open switch is given the motor of circuit breaker, and opposite side is connected with a side of blocking relay normally closed switch and a side of closing relay normal open switch respectively;
The one side joint ground, Inside coil two ends of described blocking relay, another side joint is by the block signal of logic judgment unit output, its another side joint power cathode of normal open switch one side joint release, one of its normally closed switch connect the normal open switch of release left side another side joint energy storage relay of normal open switch;
The one side joint ground, Inside coil two ends of described closing relay, another side joint are by the switching signal of logic judgment unit output, and its normal open switch one side is given the normal open switch of another side joint energy storage relay of circuit breaker, and its normally closed switch is unsettled;
The one side joint ground, Inside coil two ends of described tripping relay, another side joint are by the trip signal of logic judgment unit output, and its normal open switch one side is given another side joint positive source of circuit breaker, and its normally closed switch is unsettled;
The normal open switch of the coil one side joint blocking relay of described release inside, its inner right side normal open switch of another side joint, the positive pole of another side joint power supply of its right side normal open switch, the normal open switch of its left side normal open switch one another side joint blocking relay of side joint positive source.
The invention has the beneficial effects as follows: this control device can cooperate the vacuum circuit-breaker on the power distribution network to use, when distribution line runs into fault, can carry out logic determines according to the information that collects, and then discern rapidly and the isolated fault zone, recover the normal power supply of non-fault section simultaneously, greatly degree reduced the power supply interrupted district that barrier for some reason causes, shortened the time that has a power failure; Reduce workload to a great extent, improved the coefficient of safety of execute-in-place.This control device is simple in structure, and flexible operation is convenient, and performance is safe and reliable, and is with low cost, is convenient to I﹠M.The present invention can accurately export control signal according to the state on the distribution line, the coefficient of safety height, and greatly degree is dwindled the power supply interrupted district that barrier for some reason causes, and the vacuum circuit-breaker that is very suitable on the most of 6-10KV distribution line of present China uses; Workable, applied range.
Description of drawings
Fig. 1 is that circuit unit of the present invention is formed connection side's block diagram.
Fig. 2 is the signal gathering unit fundamental diagram.
Fig. 3 is a working power cell operation schematic diagram.
Fig. 4 logic judgment unit fundamental diagram is divided into following four parts:
Fig. 4-1 trip signal formation logic figure;
Fig. 4-2 switching signal formation logic figure;
Fig. 4-3 block signal formation logic figure;
Fig. 4-4 energy storage signal formation logic figure;
Fig. 5 is the actuator unit fundamental diagram.
Fig. 6 is the man-machine interface fundamental diagram.
Embodiment
Below in conjunction with figure and preferred embodiment, to according to embodiment provided by the invention, structure, details are as follows for feature:
As shown in Figure 1, a kind of power distribution network vacuum circuit-breaker automatic control equipment, this device control circuit is is mainly connected and composed by signals collecting and working power unit, logic judgment unit, man-machine interface and actuator.
As shown in Figure 2, the formation of described signal gathering unit circuit:
Signal acquisition circuit mainly is made up of two parts, and one is the collection of voltage signal, and it two is a current signals.
Describe as working power circuit, the voltage signal acquisition circuit is by two voltage transformers, high pressure on the distribution line is reduced to line voltage, voltage between one of them instrument transformer collection primary cut-out left side A, the B two-phase is as left voltage U AB, and the voltage between another instrument transformer collection primary cut-out right side B, the C two-phase is as right voltage U BC; Behind left voltage U AB that obtains collecting and right voltage U BC, output dc voltage signal S1 and S2 give logic judgment unit after sampling resistor R2, R5 sampling, rectification circuit D5, D6 rectification, capacitor C 4, C5 filtering respectively;
Be directed to the current signal Acquisition Circuit, the A that two great current mutual inductors are installed in primary cut-out respectively mutually with C loop mutually in, convert the secondary current of its output to voltage signal by two current transformers once more, through sampling resistor R7, R9 sampling, two of outputs can reflect that the d. c. voltage signal Sa of electric current situation of change and Sb give logic judgment unit after rectification circuit D7, D8 rectification, capacitor C 6, the C7 filtering.
As shown in Figure 3, the formation of described working power element circuit:
By two voltage transformers, high pressure on the distribution line is reduced to line voltage, voltage between one of them instrument transformer collection primary cut-out left side A, the B two-phase is as left voltage U AB, and the voltage between another instrument transformer collection primary cut-out right side B, the C two-phase is as right voltage U BC; These two voltages are in parallel again to form two groups, and wherein one group through the rectification circuit rectification, and capacitor C 1 filtering offers the motor of circuit breaker, is offered by motor and closes a floodgate and breaking coil.Other one group through the rectification circuit rectification, the DC/DC module is exported in capacitor C 2 filtering, is controller power supply by DC/DC module output+12V voltage, simultaneously the DC/DC module export to super capacitor charging C3, make it become reliable stand-by power supply.
Described signals collecting and working power unit adopt super capacitor C3 power storage device in support, select distribution line or back-up source to provide working power for package unit automatically.
As Fig. 4-1 to shown in Fig. 4-4, the formation of described logic judgment unit circuit:
Logic judging circuit mainly is made up of gate circuit and comparator, exports corresponding combined floodgate, tripping operation, locking and energy storage instruction by logical combination; The model that described comparator adopts is LM393.
Four road signal S1, S2, Sa and the Sb that collects be input to respectively in four comparators compare with fiducial value, the comparative result of two-way voltage signal and electric current carries out respectively or operates, then the output behind the logic OR is carried out and operation, the signal after this and the input of keyboard are carried out or are operated and export the tripping operation control signal afterwards;
Voltage signal S1 that two-way is collected and S2 are input to respectively in the comparator and compare with fiducial value, the signal of output respectively with the inversion signal of another signal and operation after output carry out again or operate, the result behind the logic OR and fault whether remember carry out with operation after the switching signal imported with keyboard again of signal carry out or operate after export energization control signal;
Carry out after the voltage signal Sa of the expression electric current situation of change that two-way is collected and Sb are input in the comparator and compare with fiducial value or operate, with the signal behind the logic OR with by the combined floodgate that collects on the circuit breaker whether signal carry out and operation, again with the locking of the signal behind the logical AND and keyboard input whether signal carry out or operate after export the locking control signal;
To carry out after comparing with fiducial value in the comparator of the left and right sides two-way voltage signal S1 that collects and S2 input or operate, with the signal behind the logic OR with by the tripping operation that collects on the circuit breaker whether, whether signal carries out exporting the energy storage control signal with the operation back in locking.
Described logic judgment unit by detected voltage, current signal, current circuit breaker operating state and the user the logic determines of being correlated with is set, and the output control signal is given actuator.
As shown in Figure 6, the formation of described man-machine interface circuit:
Man-machine interface is based on the button input of control commands, and main control command has combined floodgate, tripping operation and locking control signal.
Combined floodgate button S1 one end ground connection, the other end links to each other with the 3.3V high level by pull-up resistor R11, and as the output signal of control combined floodgate order, button is that low level is effective simultaneously.
Tripping operation button S2 one end ground connection, the other end links to each other with the 3.3V high level by pull-up resistor R12, and as the output signal of control trip signal, button is that low level is effective simultaneously.
Locking button S3 one end ground connection, the other end links to each other with the 3.3V high level by pull-up resistor R13, and as the output signal of control locking order, button is that low level is effective simultaneously.
As shown in Figure 5, the formation of described actuating mechanism circuit:
Actuating mechanism circuit mainly is made up of the release of energy storage relay, blocking relay, closing relay, tripping relay and a control locking.
The one side joint ground, Inside coil two ends of described energy storage relay, another side joint is by the energy storage signal of logic judgment unit output, its normally closed switch is unsettled, one side of normal open switch is given the motor of circuit breaker, and opposite side is connected with a side of blocking relay normally closed switch and a side of closing relay normal open switch respectively;
The one side joint ground, Inside coil two ends of described blocking relay, another side joint is by the block signal of logic judgment unit output, its another side joint power cathode of normal open switch one side joint release, one of its normally closed switch connect the normal open switch of release left side another side joint energy storage relay of normal open switch;
The one side joint ground, Inside coil two ends of described closing relay, another side joint are by the switching signal of logic judgment unit output, and its normal open switch one side is given the normal open switch of another side joint energy storage relay of circuit breaker, and its normally closed switch is unsettled;
The one side joint ground, Inside coil two ends of described tripping relay, another side joint are by the trip signal of logic judgment unit output, and its normal open switch one side is given another side joint positive source of circuit breaker, and its normally closed switch is unsettled;
The normal open switch of the coil one side joint blocking relay of described release inside, its inner right side normal open switch of another side joint, the positive pole of another side joint power supply of its right side normal open switch, the normal open switch of its left side normal open switch one another side joint blocking relay of side joint positive source.
Described actuator is the control command of receive logic judging unit output, control closing relay, tripping relay, blocking relay, the energy storage actuating of relay, and then the action of the combined floodgate of control circuit breaker, tripping operation, locking, energy storage.
In a word, this device can be according to the voltage of the short-circuiting device left and right sides that collects on the distribution line and the state of electric current, by voltage transformer and current transformer acquired signal is carried out step-down and fallen stream, after carrying out secondary step-down and rectification again, the output direct current signal, by with the comparison of fiducial value, the output switching value is given logic judgment unit, logic judgment unit is exported control signals such as combined floodgate, tripping operation, locking and energy storage automatically according to the switching value state that is received and is controlled circuit breaker.
This device control circuit main feature:
1, runs into the under-voltage fast trip protection of fault overcurrent distribution line.
2, close a floodgate again automatically,, run into permanent fault latch-up protection isolated fault interval, recover non-faulty section power supply if temporary derangement restores electricity.
3, carry out the motor energy storage after the tripping operation, prepare for close a floodgate next time.
Operation principle:
The line voltage that power circuit of the present invention uses the voltage transformer on the power distribution network vacuum circuit-breaker to gather provides power supply with this line voltage rectifying and wave-filtering for the operation of circuit breaker, provides working power with carrying out transformation after this commercial power rectification filtering for this controller.
Voltage signal acquisition part is undertaken exporting to logic judgment unit behind the rectifying and wave-filtering by the line voltage signal gathered the above signal by the accurate voltage mutual inductor transformation.
Current sampling circuit is transformed into voltage with the biphase current of current transformer collection in the switch by the precision current instrument transformer and exports to logic judgment unit behind rectifying and wave-filtering.
After logic judgment unit receives the signal of voltage sampling circuit and current sampling circuit, switch real time state combined floodgate, tripping operation, the locking that comprehensively collects simultaneously by circuit breaker, carry out logic determines, control signal according to judged result output combined floodgate, tripping operation, locking, energy storage is given actuator, the closing relay of actuator, tripping relay, blocking relay and energy storage relay are after the instruction that receives logic judgment unit, according to command content control vacuum circuit-breaker.
Above-mentioned with reference to embodiment to the detailed description that this power distribution network vacuum circuit-breaker automatic control equipment carries out, be illustrative rather than determinate; Therefore in the variation and the modification that do not break away under the general plotting of the present invention, should belong within protection scope of the present invention.
Claims (6)
1. a power distribution network vacuum circuit-breaker automatic control equipment is characterized in that this device control circuit is is mainly connected and composed by signals collecting and working power unit, logic judgment unit, man-machine interface and actuator; This device is according to the voltage of the circuit breaker left and right sides that collects on the distribution line and the state of electric current, by voltage transformer and current transformer acquired signal is carried out step-down and fallen stream, after carrying out secondary step-down and rectification again, the output direct current signal, by with the comparison of fiducial value, the output switching value is given logic judgment unit, and logic judgment unit is exported combined floodgate, tripping operation, locking and energy storage control signal automatically according to the switching value state that is received and controlled circuit breaker.
2. power distribution network vacuum circuit-breaker automatic control equipment according to claim 1 is characterized in that described signal gathering unit circuit comprises collection and current signals two parts of voltage signal;
The voltage signal acquisition circuit is by two voltage transformers, high pressure on the distribution line is reduced to line voltage, voltage between one of them instrument transformer collection primary cut-out left side A, the B two-phase is as left voltage, and the voltage between another instrument transformer collection primary cut-out right side B, the C two-phase is as right voltage; Behind left voltage U AB that obtains collecting and right voltage U BC, output dc voltage signal S1 and S2 give logic judgment unit behind sampling resistor sampling, rectification circuit rectification, capacitor filtering;
Be directed to the current signal Acquisition Circuit, the A that two great current mutual inductors are installed in primary cut-out respectively mutually with C loop mutually in, convert the secondary current of its output to voltage signal by two current transformers once more, through the sampling resistor sampling, the d. c. voltage signal Sa and the Sb of two reflections of output electric current situation of change give logic judgment unit behind rectification circuit rectification, the capacitor filtering.
3. power distribution network vacuum circuit-breaker automatic control equipment according to claim 1, it is characterized in that described working power element circuit is by two voltage transformers, high pressure on the distribution line is reduced to line voltage, voltage between one of them instrument transformer collection primary cut-out left side A, the B two-phase is as left voltage, and the voltage between another instrument transformer collection primary cut-out right side B, the C two-phase is as right voltage; These two voltages are in parallel again to form two groups, and wherein one group through the rectification circuit rectification, and capacitor filtering offers the motor of circuit breaker, is offered by motor and closes a floodgate and breaking coil; Other one group through the rectification circuit rectification, electric pass filter is exported to the DC/DC module, is controller power supply by DC/DC module output+12V voltage, simultaneously the DC/DC module export to the super capacitor charging, make it become stand-by power supply.
4. power distribution network vacuum circuit-breaker automatic control equipment according to claim 1 is characterized in that described logic judgment unit circuit comprises gate circuit and comparator, exports corresponding combined floodgate, tripping operation, locking and energy storage instruction by logical combination;
Four road signal S1, S2, Sa and the Sb that collects be input to respectively in four comparators compare with fiducial value, the comparative result of two-way voltage signal and electric current carries out respectively or operates, then the output behind the logic OR is carried out and operation, the trip signal of signal and keyboard input carries out or operates and export the tripping operation control signal afterwards then;
Voltage signal S1 that two-way is collected and S2 are input to respectively in the comparator and compare with fiducial value, the signal of output respectively with the inversion signal of another signal and operation after output carry out again or operate, the result behind the logic OR and fault whether remember carry out with operation after the switching signal imported with keyboard again of signal carry out or operate after export energization control signal;
Carry out after the voltage signal Sa of the expression electric current situation of change that two-way is collected and Sb are input in the comparator and compare with fiducial value or operate, with the signal behind the logic OR with by the combined floodgate that collects on the circuit breaker whether signal carry out and operation, again with the locking of the signal behind the logical AND and keyboard input whether signal carry out or operate after export the locking control signal;
To carry out after comparing with fiducial value in the comparator of the left and right sides two-way voltage signal S1 that collects and S2 input or operate, with the signal behind the logic OR with by the tripping operation that collects on the circuit breaker whether, whether signal carries out exporting the energy storage control signal with the operation back in locking.
5. power distribution network vacuum circuit-breaker automatic control equipment according to claim 1 is characterized in that described man-machine interface circuit comprises the push-button switch of control operation, comprises combined floodgate switch, trip switch, latch switch; Switch adopts low level effective, and its connected mode is the side joint ground with switch, and opposite side links to each other with+3.3V power supply by pull-up resistor, and resistance is not connected a side as output with power supply.
6. power distribution network vacuum circuit-breaker automatic control equipment according to claim 1 is characterized in that described actuating mechanism circuit comprises the release of energy storage relay, blocking relay, closing relay, tripping relay and a control locking;
The one side joint ground, Inside coil two ends of described energy storage relay, another side joint is by the energy storage signal of logic judgment unit output, its normally closed switch is unsettled, one side of normal open switch is given the motor of circuit breaker, and opposite side is connected with a side of blocking relay normally closed switch and a side of closing relay normal open switch respectively;
The one side joint ground, Inside coil two ends of described blocking relay, another side joint is by the block signal of logic judgment unit output, its another side joint power cathode of normal open switch one side joint release, one of its normally closed switch connect the normal open switch of release left side another side joint energy storage relay of normal open switch;
The one side joint ground, Inside coil two ends of described closing relay, another side joint are by the switching signal of logic judgment unit output, and its normal open switch one side is given the normal open switch of another side joint energy storage relay of circuit breaker, and its normally closed switch is unsettled;
The one side joint ground, Inside coil two ends of described tripping relay, another side joint are by the trip signal of logic judgment unit output, and its normal open switch one side is given another side joint positive source of circuit breaker, and its normally closed switch is unsettled;
The normal open switch of the coil one side joint blocking relay of described release inside, its inner right side normal open switch of another side joint, the positive pole of another side joint power supply of its right side normal open switch, the normal open switch of its left side normal open switch one another side joint blocking relay of side joint positive source.
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| CN2010105805808A CN101980419B (en) | 2010-12-09 | 2010-12-09 | Automatic control device for vacuum circuit breaker on electric distribution network |
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| CN2010105805808A CN101980419B (en) | 2010-12-09 | 2010-12-09 | Automatic control device for vacuum circuit breaker on electric distribution network |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102761108A (en) * | 2012-07-18 | 2012-10-31 | 积成电子股份有限公司 | Logic operation-based distributed feeder automatization fault judgment method |
| CN102856133A (en) * | 2011-06-29 | 2013-01-02 | 西门子公司 | Electric current supply device of tripping mechanism and circuit breaker and control method of electric current supply device |
| CN104638603A (en) * | 2015-03-26 | 2015-05-20 | 青岛飞鹏能源有限公司 | Automatic reclosing method and device for power recovery |
| CN104868436A (en) * | 2015-05-21 | 2015-08-26 | 浙江大学 | Connecting protection system for seabed observational network |
| CN105144526A (en) * | 2012-12-04 | 2015-12-09 | Abb研究有限公司 | A self supplied protection relay with a module to boost performance |
| CN105548829A (en) * | 2015-12-04 | 2016-05-04 | 重庆臻远电气有限公司 | Partial discharge data acquisition circuit and partial discharge monitoring system |
| CN107329031A (en) * | 2017-07-14 | 2017-11-07 | 北京送变电公司 | Contact sequencing device |
| CN108199359A (en) * | 2018-03-29 | 2018-06-22 | 彭璐 | A kind of distribution control device and method |
| CN112217284A (en) * | 2020-10-12 | 2021-01-12 | 国网山东省电力公司青州市供电公司 | Redundant feeder terminal data monitoring method, system, terminal and storage medium |
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| CN102856133A (en) * | 2011-06-29 | 2013-01-02 | 西门子公司 | Electric current supply device of tripping mechanism and circuit breaker and control method of electric current supply device |
| CN102856133B (en) * | 2011-06-29 | 2015-04-29 | 西门子公司 | Electric current supply device of tripping mechanism and circuit breaker and control method of electric current supply device |
| CN102761108A (en) * | 2012-07-18 | 2012-10-31 | 积成电子股份有限公司 | Logic operation-based distributed feeder automatization fault judgment method |
| CN102761108B (en) * | 2012-07-18 | 2014-10-08 | 积成电子股份有限公司 | Logic operation-based distributed feeder automatization fault judgment method |
| CN105144526A (en) * | 2012-12-04 | 2015-12-09 | Abb研究有限公司 | A self supplied protection relay with a module to boost performance |
| CN105144526B (en) * | 2012-12-04 | 2018-03-30 | Abb研究有限公司 | The confession protective relay of module with improving performance |
| CN104638603A (en) * | 2015-03-26 | 2015-05-20 | 青岛飞鹏能源有限公司 | Automatic reclosing method and device for power recovery |
| CN104868436A (en) * | 2015-05-21 | 2015-08-26 | 浙江大学 | Connecting protection system for seabed observational network |
| CN105548829A (en) * | 2015-12-04 | 2016-05-04 | 重庆臻远电气有限公司 | Partial discharge data acquisition circuit and partial discharge monitoring system |
| CN107329031A (en) * | 2017-07-14 | 2017-11-07 | 北京送变电公司 | Contact sequencing device |
| CN107329031B (en) * | 2017-07-14 | 2023-08-04 | 北京送变电公司 | Contact sequencing device |
| CN108199359A (en) * | 2018-03-29 | 2018-06-22 | 彭璐 | A kind of distribution control device and method |
| CN112217284A (en) * | 2020-10-12 | 2021-01-12 | 国网山东省电力公司青州市供电公司 | Redundant feeder terminal data monitoring method, system, terminal and storage medium |
| CN112217284B (en) * | 2020-10-12 | 2022-10-04 | 国网山东省电力公司青州市供电公司 | Redundant feeder terminal data monitoring method, system, terminal and storage medium |
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