CN109870647A - A monitoring system for circuit breaker opening electrical circuit faults - Google Patents

A monitoring system for circuit breaker opening electrical circuit faults Download PDF

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Publication number
CN109870647A
CN109870647A CN201910241533.1A CN201910241533A CN109870647A CN 109870647 A CN109870647 A CN 109870647A CN 201910241533 A CN201910241533 A CN 201910241533A CN 109870647 A CN109870647 A CN 109870647A
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CN
China
Prior art keywords
power supply
circuit breaker
breaker
position relay
normally closed
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CN201910241533.1A
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Chinese (zh)
Inventor
傅守滨
李传东
鲁南
庞怀江
赵兴永
徐霞
付兆升
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Shandong Iron and Steel Group Co Ltd SISG
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Shandong Iron and Steel Group Co Ltd SISG
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Priority to CN201910241533.1A priority Critical patent/CN109870647A/en
Publication of CN109870647A publication Critical patent/CN109870647A/en
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Abstract

This application discloses a kind of breaker open operation electric loop fault monitoring systems, it include: DC power supply, microcomputer protecting controller, breaker assists normally closed contact, breaker assists normal opened contact, closing position monitors red light, communication processor and background monitoring machine, breaker is in operating normally power supply process, operator both can monitor red light by the closing position on the control cabinet door face board of inspection high-tension switch cabinet at the scene to judge that whether complete the sub-gate circuit of breaker is reliable, it can be by checking live microcomputer protecting device, the warning message for the control loop template that background monitoring machine is checked can also be passed through, without going on-the-spot make an inspection tour, breaker open operation electric loop failure can be learned in real time, to adopt an effective measure in time, quickly eliminate brake division loop of circuit breaker failure, ensure the safe and reliable operation of breaker.

Description

A kind of monitoring system of breaker open operation electric loop failure
Technical field
This application involves brake division loop of circuit breaker malfunction monitoring technical fields, and in particular to a kind of breaker open operation electrically returns The monitoring system of road failure.
Background technique
Breaker is to refer to cutting or no-load current and load current in closed circuit, and work as system jam When can by protective device, cut off overload electric current and short circuit current device.Therefore in the power system, breaker also right and wrong Often important power supply unit.In normal operation, the separating brake electric control loop of breaker should be complete for breaker, when route occurs When short trouble, breaker trip protection exit relay is acted, junction closure, and breaker open operation coil obtains electric, drive point The movement of lock operating mechanism, completes the tripping of breaker, thus disengagement failure point.
But if element fault occurs in brake division loop of circuit breaker, cause circuit imperfect, cannot normal sub-switching operation, When meeting line short fault, breaker protection can tripping, can only overstepping disconnect fault point, will lead to bus large area mistake Electrification.If can find breaker open operation electric loop failure in time and then exclude in time can be to avoid bus large area power loss Accident.
Therefore, how in time discovery breaker open operation electric loop failure is this field urgent problem to be solved.
Summary of the invention
In order to solve the above-mentioned technical problem the application, proposes following technical solution:
In a first aspect, the embodiment of the present application provides a kind of breaker open operation electric loop fault monitoring system, comprising: straight Galvanic electricity source, microcomputer protecting controller, breaker auxiliary normally closed contact, breaker auxiliary normal opened contact, closing position monitoring are red Lamp, communication processor and background monitoring machine, in which: the microcomputer protecting controller includes: tripping position relay coil, closes Gate position relay coil, closing operation position relay auxiliary normal opened contact, closing operation position relay auxiliary normally closed contact and tripping Position relay assist normally closed contact, the tripping position relay coil, closing operation position relay coil and trip position after One end of electric appliance auxiliary normally closed contact is electrically connected with the anode of the DC power supply, the both ends of the breaker auxiliary normally closed contact It is electrically connected respectively with the cathode of the other end of the tripping position relay coil and the DC power supply, the breaker auxiliary The both ends of normal opened contact are electrically connected with the cathode of the other end of the closing operation position relay coil and the DC power supply respectively； One end of the closing operation position relay auxiliary normally closed contact and the other end of tripping position relay auxiliary normally closed contact Connecing in the microcomputer protecting controller is arranged in the other end of electrical connection, the closing operation position relay auxiliary normally closed contact In line terminals；The both ends of the closing operation position relay auxiliary normal opened contact monitor one end of red light with the closing position respectively It is electrically connected with the cathode of DC power supply, the anode of the other end and the DC power supply of the closing position monitoring red light is electrically connected It connects；The communication processor signal receiving end and the microcomputer protecting controller communicate to connect, the communication processor signal Transmitting terminal and the background monitoring machine communicate to connect.
Using above-mentioned implementation, in operating normally power supply process, operator can both lead to breaker at the scene Cross check high-tension switch cabinet control cabinet door face board on closing position monitoring red light come judge breaker sub-gate circuit whether It is complete reliable, both can be by the warning message for the control loop template checked on live microcomputer protecting device, it can also be by checking The warning message for the control loop template that background monitoring machine issues, without going on-the-spot make an inspection tour, so that it may learn breaker in real time Separating brake electric loop failure quickly eliminates brake division loop of circuit breaker failure, it is ensured that breaker to adopt an effective measure in time Safe and reliable operation.
With reference to first aspect, in a first possible implementation of that first aspect, the breaker assists normally closed contact Closing coil is set between the cathode of the DC power supply, and the both ends of the closing coil are normal with breaker auxiliary respectively Close the cathode electrical connection of contact and the DC power supply.
The first possible implementation with reference to first aspect, in a second possible implementation of that first aspect, institute It states and opening coil is set between breaker auxiliary normal opened contact and the cathode of the DC power supply, the both ends point of the opening coil The cathode of normal opened contact and the DC power supply is not assisted to be electrically connected with the breaker.
Second of possible implementation with reference to first aspect, in first aspect in the third possible implementation, institute It states and is provided with cathode power supply connecting terminal and negative power supply connecting terminal on microcomputer protecting controller, the cathode power supply wiring Terminal is electrically connected with the anode of the DC power supply, and the cathode of the negative power supply connecting terminal and the DC power supply is electrically connected It connects.
The third possible implementation with reference to first aspect, in the 4th kind of possible implementation of first aspect, institute It states and is additionally provided with the first communication interface and the second communication interface on microcomputer protecting controller, first communication interface and second Communication interface is communicated to connect with the signal receiving end of the communication processor.
4th kind of possible implementation with reference to first aspect, in the 5th kind of possible implementation of first aspect, institute It states and is provided with spring energy-storage normal opened contact, the bullet between tripping position relay coil and breaker auxiliary normally closed contact Spring energy storage normal opened contact is electrically connected with the tripping position relay coil with breaker auxiliary normally closed contact respectively.
It with reference to first aspect or the first to five kind of first aspect any possible implementation, can at the 6th kind of first aspect In the implementation of energy, dc circuit breaker is additionally provided between the DC power supply and current supply circuit, the dc circuit breaker is used It powers in cutting off the DC power supply.
6th kind of possible implementation with reference to first aspect, in the 7th kind of possible implementation of first aspect, institute Stating direct current power source voltage is 220V.
7th kind of possible implementation with reference to first aspect, in the 8th kind of possible implementation of first aspect, institute Stating background monitoring machine includes combined aural and visual alarm and display screen, and the combined aural and visual alarm is for issuing alarm signal, the display screen For showing fault message.
Detailed description of the invention
Fig. 1 is a kind of structural representation of breaker open operation electric loop fault monitoring system provided by the embodiments of the present application Figure；
In Fig. 1, symbol is expressed as:
KM- DC power supply, QF1- breaker assist normally closed contact, and QF2- breaker assists normal opened contact, HQ- closing line Circle, TQ- opening coil, HD- closing position monitor red light, TWJ- tripping position relay coil, TWJ2- tripping position relay Normally closed contact, HWJ- closing operation position relay coil are assisted, HWJ1- closing operation position relay assists normal opened contact, and HWJ2- closes a floodgate Position relay assists normally closed contact, S1- spring Chu Manneng normal opened contact, 1DK- dc circuit breaker, P1- cathode power supply terminals Son, P2- negative power supply connecting terminal, the first communication interface of S3-, the second communication interface of S4-.
Specific embodiment
This programme is illustrated with specific embodiment with reference to the accompanying drawing.
Fig. 1 is a kind of structural representation of breaker open operation electric loop fault monitoring system provided by the embodiments of the present application Figure, referring to Fig. 1, breaker open operation electric loop fault monitoring system, comprising: DC power supply KM, the DC power supply KM voltage For 220V, microcomputer protecting controller, breaker auxiliary normally closed contact QF1, breaker assist normal opened contact QF2, closing position Monitor red light HD, communication processor and background monitoring machine.
The microcomputer protecting controller include: tripping position relay coil TWJ, closing operation position relay coil HWJ, Closing operation position relay assists normal opened contact HWJ1, closing operation position relay auxiliary normally closed contact HWJ2 and tripping position relay Assist normally closed contact TWJ2, the tripping position relay coil TWJ, closing operation position relay coil HWJ and trip position after One end of electric appliance auxiliary normally closed contact TWJ2 is electrically connected with the anode of the DC power supply, and the breaker assists normally closed contact The both ends of QF1 are electrically connected with the cathode of the other end of the tripping position relay coil TWJ and the DC power supply respectively, institute State the both ends of breaker auxiliary normal opened contact QF2 respectively with the other end of the closing operation position relay coil HWJ and described straight The cathode in galvanic electricity source is electrically connected.
One end of the closing operation position relay auxiliary normally closed contact HWJ2 assists normally closed with the tripping position relay The other end of contact TWJ2 is electrically connected, and the other end of the closing operation position relay auxiliary normally closed contact HWJ2 is arranged described micro- On connecting terminal in machine protection supervisory equipment；The both ends of closing operation position relay auxiliary normal opened contact HWJ1 respectively with institute One end of closing position monitoring red light HD and the cathode electrical connection of DC power supply are stated, the closing position monitoring red light HD's is another It holds and is electrically connected with the anode of the DC power supply；The communication processor signal receiving end and the microcomputer protecting controller are logical Letter connection, the communication processor signal sending end and the background monitoring machine communicate to connect.
Further, closing line is set between the breaker auxiliary normally closed contact QF1 and the cathode of the DC power supply HQ is enclosed, the both ends of the closing coil HQ assist the cathode of normally closed contact QF1 and the DC power supply with the breaker respectively Electrical connection.Setting opening coil TQ between the breaker auxiliary normal opened contact QF2 and the cathode of the DC power supply, described point The both ends of brake cable circle TQ assist the cathode of normal opened contact QF2 and the DC power supply to be electrically connected with the breaker respectively.
Cathode power supply connecting terminal P1 and negative power supply connecting terminal P2, institute are provided on the microcomputer protecting controller The anode for stating cathode power supply connecting terminal P1 and the DC power supply be electrically connected, the negative power supply connecting terminal P2 and it is described directly The cathode in galvanic electricity source is electrically connected.
It is additionally provided with the first communication interface S3 and the second communication interface S4 on the microcomputer protecting controller, described first Communication interface S3 and the second communication interface S4 is arranged on a communication joint, and the communication of the first communication interface S3 and second connects Mouth S4 is communicated to connect with the signal receiving end of the communication processor.The tripping position relay coil TWJ breaks with described Be provided with spring energy-storage normal opened contact S1 between road device auxiliary normally closed contact QF1, the spring energy-storage normal opened contact S1 respectively with The tripping position relay coil TWJ is electrically connected with breaker auxiliary normally closed contact QF1.
Dc circuit breaker 1DK is additionally provided between the DC power supply and current supply circuit, the dc circuit breaker 1DK is used for Cut off the DC power supply power supply.The background monitoring machine includes combined aural and visual alarm and display screen, and the combined aural and visual alarm is used for Alarm signal is issued, the display screen is for showing fault message.
The dc circuit breaker 1DK of the monitoring system of breaker open operation electric loop failure is in breaker normal operation Closing position.In the operation of breaker normal power supply, breaker assists normal opened contact QF2 closure, closing operation position relay coil HWJ Electric, auxiliary normal opened contact HWJ1 closure is obtained, the closing position monitoring red light HD on the control cabinet door face board of high-tension switch cabinet is bright, Show breaker in closing position, the sub-gate circuit of breaker is complete.Closing position monitors red light HD and closing position relay Closing position monitoring circuit where device coil HWJ is used to monitor the integrality of brake division loop of circuit breaker, i.e., by checking high pressure Closing position on the control cabinet door face board of switchgear monitors whether lighting for red light HD, whether to judge brake division loop of circuit breaker Completely.In the present embodiment, so-called auxiliary normal opened contact HWJ1, refer to the coil of closing operation position relay HWJ not it is electric When, closing operation position relay auxiliary normal opened contact HWJ1 is maintained at normally open, when the coil of closing operation position relay HWJ is obtaining When electric, which can be then closed.
Protection supervisory equipment can detect the state of circuit-breaker switching on-off position relay automatically, and breaker is in power supply fortune of closing a floodgate When row, when the opening coil TQ of breaker open operation electric loop, breaker normal opened contact and its certain unitary in connecting wire circuit In the event of failure, closing position monitoring circuit is obstructed for part.Closing operation position relay coil HWJ must not be electric, assists normal opened contact HWJ1 is not closed, and closing position on the control cabinet door face board of high-tension switch cabinet monitoring red light HD does not work, meanwhile, closing position after Electric appliance assists normally closed contact HWJ2 to reset connection.Also, in closing position, breaker auxiliary normally closed contact QF1's answers breaker Return disconnection, for monitoring that the coil TWJ of tripping position relay of closing circuit of circuit breaker integrality also must not be electric, auxiliary is normal It closes contact TWJ2 and resets connection.In this way, two group relay normally closed contacts of circuit-breaker switching on-off position are connected in series, protective device By logic judgment, that is, think that the separating brake control loop of breaker is broken, issues the alarm signal of " control loop template " Breath, and in microcomputer protecting controller liquid crystal screen display " control loop template ".
As can be seen from the above embodiments, a kind of breaker open operation electric loop fault monitoring system is present embodiments provided, is broken For road device in operating normally power supply process, operator can both pass through the control cabinet shop front of inspection high-tension switch cabinet at the scene Whether the closing position monitoring red light on plate is complete reliable come the sub-gate circuit for judging breaker, can be by checking that live microcomputer is protected Protection unit, can also be by the warning message for the control loop template that background monitoring machine is checked, without going on-the-spot make an inspection tour, so that it may in real time It learns breaker open operation electric loop failure, to adopt an effective measure in time, quickly eliminates brake division loop of circuit breaker failure, really The safe and reliable operation of breaker is protected.
It should be noted that, in this document, the relational terms of such as " first " and " second " or the like are used merely to one A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in the process, method, article or apparatus that includes the element.
Certainly, above description is also not limited to the example above, technical characteristic of the application without description can by or It is realized using the prior art, details are not described herein；The technical solution that above embodiments and attached drawing are merely to illustrate the application is not It is the limitation to the application, Tathagata substitutes, and the application is described in detail only in conjunction with and referring to preferred embodiment, ability Domain it is to be appreciated by one skilled in the art that those skilled in the art were made in the essential scope of the application Variations, modifications, additions or substitutions also should belong to claims hereof protection scope without departure from the objective of the application.

Claims (9)

1.一种断路器分闸电气回路故障监测系统,其特征在于，包括：直流电源、微机保护测控装置、断路器辅助常闭接点、断路器辅助常开接点、合闸位置监视红灯、通信管理机和后台监控机，其中：1. A circuit breaker opening electrical circuit fault monitoring system is characterized in that, comprising: DC power supply, microcomputer protection measurement and control device, circuit breaker auxiliary normally closed contact, circuit breaker auxiliary normally open contact, closing position monitoring red light, communication Management machine and background monitoring machine, including: 所述微机保护测控装置包括：跳闸位置继电器线圈、合闸位置继电器线圈、合闸位置继电器辅助常开接点、合闸位置继电器辅助常闭接点和跳闸位置继电器辅助常闭接点，所述跳闸位置继电器线圈、合闸位置继电器线圈和跳闸位置继电器辅助常闭接点的一端与所述直流电源的正极电连接，所述断路器辅助常闭接点的两端分别与所述跳闸位置继电器线圈的另一端和所述直流电源的负极电连接，所述断路器辅助常开接点的两端分别与所述合闸位置继电器线圈的另一端和所述直流电源的负极电连接；The microcomputer protection measurement and control device includes: a trip position relay coil, a closing position relay coil, an auxiliary normally open contact of the closing position relay, an auxiliary normally closed contact of the closing position relay, and an auxiliary normally closed contact of the trip position relay. One end of the coil, the closing position relay coil and the auxiliary normally closed contact of the trip position relay is electrically connected with the positive pole of the DC power supply, and the two ends of the auxiliary normally closed contact of the circuit breaker are respectively connected with the other end of the trip position relay coil and The negative pole of the DC power supply is electrically connected, and the two ends of the auxiliary normally open contact of the circuit breaker are respectively electrically connected to the other end of the closing position relay coil and the negative pole of the DC power supply; 所述合闸位置继电器辅助常闭接点的一端与所述跳闸位置继电器辅助常闭接点的另一端电连接，所述合闸位置继电器辅助常闭接点的另一端设置在所述微机保护测控装置内的接线端子上；所述合闸位置继电器辅助常开接点的两端分别与所述合闸位置监视红灯的一端和直流电源的负极电连接，所述合闸位置监视红灯的另一端与所述直流电源的正极电连接；所述通信管理机信号接收端与所述微机保护测控装置通信连接，所述通信管理机信号发送端与所述后台监控机通信连接。One end of the auxiliary normally closed contact of the closing position relay is electrically connected with the other end of the auxiliary normally closed contact of the trip position relay, and the other end of the auxiliary normally closed contact of the closing position relay is arranged in the microcomputer protection measurement and control device The two ends of the auxiliary normally open contact of the closing position relay are respectively electrically connected to one end of the closing position monitoring red light and the negative pole of the DC power supply, and the other end of the closing position monitoring red light is electrically connected to the The positive pole of the DC power supply is electrically connected; the signal receiving end of the communication management machine is connected in communication with the microcomputer protection and monitoring device, and the signal transmitting end of the communication management machine is connected in communication with the background monitoring machine. 2.根据权利要求1所述的断路器分闸电气回路故障监测系统,其特征在于，所述断路器辅助常闭接点与所述直流电源的负极之间设置合闸线圈，所述合闸线圈的两端分别与所述断路器辅助常闭接点和所述直流电源的负极电连接。2. The circuit breaker opening electrical circuit fault monitoring system according to claim 1, wherein a closing coil is arranged between the auxiliary normally closed contact of the circuit breaker and the negative electrode of the DC power supply, and the closing coil is The two ends of the circuit breaker are respectively electrically connected with the auxiliary normally closed contact of the circuit breaker and the negative electrode of the DC power supply. 3.根据权利要求2所述的断路器分闸电气回路故障监测系统,其特征在于，所述断路器辅助常开接点与所述直流电源的负极之间设置分闸线圈，所述分闸线圈的两端分别与所述断路器辅助常开接点和所述直流电源的负极电连接。3. The circuit breaker opening electrical circuit fault monitoring system according to claim 2, wherein an opening coil is arranged between the auxiliary normally open contact of the circuit breaker and the negative electrode of the DC power supply, and the opening coil is The two ends of the circuit breaker are respectively electrically connected with the auxiliary normally open contact of the circuit breaker and the negative electrode of the DC power supply. 4.根据权利要求3所述的断路器分闸电气回路故障监测系统,其特征在于，所述微机保护测控装置上设置有正极电源接线端子和负极电源接线端子，所述正极电源接线端子与所述直流电源的正极电连接，所述负极电源接线端子与所述直流电源的负极电连接。4. The circuit breaker tripping electrical circuit fault monitoring system according to claim 3, wherein the microcomputer protection and measurement and control device is provided with a positive power supply terminal and a negative power supply terminal, and the positive power supply terminal is connected to the The positive pole of the DC power supply is electrically connected, and the negative pole power supply terminal is electrically connected to the negative pole of the DC power supply. 5.根据权利要求4所述的断路器分闸电气回路故障监测系统,其特征在于，所述微机保护测控装置上还设置有第一通信接口和第二通信接口，所述第一通信接口和第二通信接口均与所述通信管理机的信号接收端通信连接。5. The circuit breaker opening electrical circuit fault monitoring system according to claim 4, wherein the microcomputer protection monitoring and control device is also provided with a first communication interface and a second communication interface, the first communication interface and The second communication interfaces are all connected in communication with the signal receiving end of the communication management machine. 6.根据权利要求5所述的断路器分闸电气回路故障监测系统,其特征在于，所述跳闸位置继电器线圈与所述断路器辅助常闭接点之间设置有弹簧储能常开接点，所述弹簧储能常开接点分别与所述跳闸位置继电器线圈与所述断路器辅助常闭接点电连接。6. The circuit breaker opening electrical circuit fault monitoring system according to claim 5, wherein a spring energy storage normally open contact is provided between the trip position relay coil and the circuit breaker auxiliary normally closed contact, so The spring energy storage normally open contact is respectively electrically connected with the trip position relay coil and the circuit breaker auxiliary normally closed contact. 7.根据权利要求1-6任一项所述的断路器分闸电气回路故障监测系统,其特征在于，所述直流电源与供电回路之间还设置有直流断路器，所述直流断路器用于切断所述直流电源供电。7. The circuit breaker opening electrical circuit fault monitoring system according to any one of claims 1-6, wherein a DC circuit breaker is further provided between the DC power supply and the power supply circuit, and the DC circuit breaker is used for Cut off the DC power supply. 8.根据权利要求7所述的断路器分闸电气回路故障监测系统,其特征在于，所述直流电源电压为220V。8 . The circuit breaker opening electrical circuit fault monitoring system according to claim 7 , wherein the DC power supply voltage is 220V. 9 . 9.根据权利要求8所述的断路器分闸电气回路故障监测系统,其特征在于，所述后台监控机包括声光报警器和显示屏，所述声光报警器用于发出报警信号，所述显示屏用于显示故障信息。9. The circuit breaker opening electrical circuit fault monitoring system according to claim 8, wherein the background monitoring machine comprises an acousto-optic alarm and a display screen, the acousto-optic alarm is used to issue an alarm signal, the The display is used to display fault messages.
CN201910241533.1A 2019-03-28 2019-03-28 A monitoring system for circuit breaker opening electrical circuit faults Pending CN109870647A (en)

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CN110988665A (en) * 2019-12-01 2020-04-10 国网辽宁省电力有限公司锦州供电公司 Alarm method for abnormal closing function of spring-type circuit breaker
CN111739767A (en) * 2020-06-16 2020-10-02 国网宁夏电力有限公司固原供电公司 A circuit breaker trip alarm device
CN112433147A (en) * 2020-10-30 2021-03-02 国网山东省电力公司聊城供电公司 High-voltage circuit breaker control circuit fault self-diagnosis device
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Application publication date: 20190611