CN109782657A - A kind of circuit-breaker switching on-off integrated control system - Google Patents
A kind of circuit-breaker switching on-off integrated control system Download PDFInfo
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Abstract
The present invention relates to a kind of circuit-breaker switching on-off integrated control systems.The integrated control system includes central processing unit and manual divide-shut brake signal input module, divide-shut brake signal output module, the output end of divide-shut brake signal output module is connected with anti-jump module, manual divide-shut brake signal input module is for receiving divide-shut brake order on the spot and divide-shut brake order will be input to central processing unit on the spot, central processing unit is sent to anti-jump module by divide-shut brake signal output module according to the order of divide-shut brake on the spot received, and anti-jump module includes combined floodgate trip-preventing circuit, main separating brake trip-preventing circuit and secondary separating brake trip-preventing circuit.The control system receives divide-shut brake order on the spot by central processing unit when realizing anti-bouncing function and controls the circuit that cutting is access to closing coil, control system modularization is arranged, and an anti-trip relay is only provided in anti-jump module, greatly reduce the quantity of relay, assembly efficiency is improved, while also being further reduced the cost.
Description
Technical field
The present invention relates to a kind of circuit-breaker switching on-off integrated control systems, belong to power transmission and transformation system relay control neck
Domain.
Background technique
Circuit-breaker switching on-off control system mostly uses on-off control system at present, and this control system is needed using multiple
Centre/the time relay causes control system complexity, wiring cumbersome, and assembly work amount is big, and higher cost.With chip skill
The development of art also occurs carrying out the scheme of circuit-breaker switching on-off control using controller, if Authorization Notice No. is CN
The Chinese utility model patent file of 204597629U, this document disclose a kind of breaker control circuit, including controller and suitable
Orchestration, is provided with relay JK1 and relay JK2 on adapter, in the contact access closing circuit of relay JK1, relay
Sub-gate circuit is accessed in the contact of JK2, is incorporated to resistance by relay contact, improves circuit behavior electric current, guarantees reclosing function
Realization, but it is when realizing breaker anti-bouncing function, it is desired nonetheless to by means of the various relays in complex protection device, cause
Control loop wiring is complicated, at high cost.
Summary of the invention
The object of the present invention is to provide a kind of circuit-breaker switching on-off integrated control systems, for solving current breaker division
The complexity of wiring caused by relay used by lock control system is more, problem at high cost.
To achieve the above object, the present invention proposes a kind of circuit-breaker switching on-off integrated control system, circuit-breaker switching on-off collection
It include central processing unit and the manual divide-shut brake signal input module being connect with central processing unit, divide-shut brake letter at control system
Number output module, the output end of divide-shut brake signal output module are connected with anti-jump module, and manual divide-shut brake signal input module is used
In receiving divide-shut brake order on the spot and divide-shut brake order will be input to central processing unit on the spot, central processing unit is according to receiving
Divide-shut brake order is sent to anti-jump module by divide-shut brake signal output module on the spot, anti-jump module include combined floodgate trip-preventing circuit,
Main separating brake trip-preventing circuit and secondary separating brake trip-preventing circuit, combined floodgate trip-preventing circuit, main separating brake trip-preventing circuit and secondary separating brake trip-preventing circuit
Output end is simultaneously grounded after connecing by anti-trip relay, and input terminal connecting dividing lock signal output module is respectively used to receive and close on the spot
Lock order, with regard to the order of landlord's separating brake and on the spot secondary separating brake order are serially connected with breaker closing nodes of locations on combined floodgate trip-preventing circuit,
The breaker closing nodes of locations both ends and the normally opened contact for being connected to anti-trip relay, the input terminal of combined floodgate trip-preventing circuit are provided with
It is access to the circuit of breaker closing coil, the normally-closed contact of anti-trip relay is serially connected on the circuit.
The control system receives divide-shut brake order on the spot by central processing unit when realizing anti-bouncing function and controls cutting
It is access to the circuit of closing coil, control system modularization is arranged, and is only provided with an anti-jump relay in anti-jump module
Device greatly reduces the quantity of relay, improves assembly efficiency, while also further reducing the cost.Moreover, in the control system
Be provided with close a floodgate it is anti-jump, the anti-jump and secondary separating brake of main separating brake is anti-jump, the anti-jump collective effect of multichannel substantially increases anti-bouncing function
Reliability, reduce breaker jump risk, be conducive to improve breaker reliability.
Further, manual divide-shut brake signal input module includes switching signal input module and on the spot sub-gate signal on the spot
Input module, each signal input module pass through corresponding optical coupling isolation circuit and are connected to central processing unit.
The input of divide-shut brake signal is realized by the way of light-coupled isolation, which has good isolation and resists
Interference, the further accuracy for improving signal input.
Further, the startup power of corresponding optical coupling isolation circuit is all larger than 5W in each signal input module.
5W optical coupling isolation circuit is greater than using startup power, further improves anti-interference ability.
Further, combined floodgate trip-preventing circuit, main separating brake trip-preventing circuit and secondary separating brake trip-preventing circuit are provided with corresponding optocoupler
Isolator.
Realize anti-bouncing function by the way of light-coupled isolation in each anti-jump loop, which have good isolation with
And anti-interference, further increase the reliability of anti-bouncing function.
Further, central processing unit is also connected with non-three phase processing module, and non-three phase processing module includes breaker position
Set signal input circuit and alarm output circuit, the input terminal of circuit breaker position signal input circuit and central processing unit connects,
For obtaining the position of breaker, alarm output circuit controls connection by the output end of central processing unit, and central processing unit is to receipts
Timing is carried out to circuit breaker position signal, logic control alarm output circuit is handled according to non-three phase.
Breaker is for connecting or disconnecting power transmission and transformation system, in order to avoid the open-phase operation of power transmission and transformation system, disconnected
Non-three phase processing module is set in the device divide-shut brake integrated control system of road, and non-three phase processing module is by three phase of breaker of acquisition
Confidence number is sent to central processing unit, and central processing unit, which calculate, analyzes whether power transmission and transformation system at this time is open-phase operation,
It if open-phase operation, then alarms, manual intervention is repaired, and guarantees the normal operation of power transmission and transformation system.
Further, central processing unit is also connected with sampled signal input module, and sampled signal input module includes difference
Breaker three-phase combined floodgate, main separating brake, the voltage in secondary sub-gate circuit, current transformer are set, closes a floodgate for acquiring three-phase, is main
The current signal of corresponding coil and the voltage signal of corresponding coil two sides are flowed through in separating brake, secondary sub-gate circuit, central processing unit is used
In the data acquired according to sampled signal input module to the state of breaker closing coil, main opening coil and secondary opening coil
It is monitored.
Sampled signal input module timing acquiring three-phase combined floodgate, main separating brake, the electric current that each coil is flowed through in secondary sub-gate circuit
The voltage signal of signal and each coil two sides, and data collected are analyzed by central processing unit, with realization pair
The monitoring of the virtual condition of circuit-breaker switching on-off coil, the effective state aware ability improved under circuit-breaker switching on-off failure,
Guarantee the normal operation of power transmission and transformation system.
Further, when central processing unit is monitored including breaker actuation circuit-breaker switching on-off coil state and disconnected
Two kinds of situations of road device non-action.
The case where when detection breaker actuation and when non-action, the comprehensive monitoring of breaker is realized, it is further to improve
Breaker reliability of operation.
Detailed description of the invention
Fig. 1 is the system block diagram of circuit-breaker switching on-off integrated control system of the present invention；
Fig. 2 is the circuit diagram of the anti-jump module of the present invention；
Fig. 3 is the circuit diagram of manual divide-shut brake signal input module of the present invention；
Fig. 4 is the circuit diagram of non-three phase processing module of the present invention；
Central processing unit is patrolled what circuit-breaker switching on-off coil state was monitored when Fig. 5 is breaker non-action of the present invention
Collect figure；
The logic that central processing unit is monitored circuit-breaker switching on-off coil state when Fig. 6 is breaker actuation of the present invention
Figure；
Fig. 7 is the circuit diagram of coil exception output module of the present invention.
Specific embodiment
Circuit-breaker switching on-off integrated control system embodiment:
The present embodiment proposes a kind of circuit-breaker switching on-off integrated control system (hereinafter referred to as control system), defeated with generator
It describes in detail for breaker to the control system out.As shown in Figure 1, the control system includes central processing unit (i.e. MCU
Processing unit part, hereinafter referred to as MCU), manual divide-shut brake signal input module, divide-shut brake signal output module, anti-jump module.
Manual divide-shut brake signal input module connection MCU, the input terminal of MCU connecting dividing lock signal output module, divide-shut brake signal are defeated
The output end of module connects anti-jump module out.Manual divide-shut brake signal input module is for receiving divide-shut brake order on the spot and putting up with
Ground divide-shut brake order is input to MCU, and MCU is sent according to the order of divide-shut brake on the spot received by divide-shut brake signal output module
To anti-jump module, instruction that divide-shut brake signal output module is issued includes the order, with regard to the order of landlord's separating brake and just of closing a floodgate on the spot
Ground pair separating brake order.
Anti-jump module is as shown in Fig. 2, include combined floodgate trip-preventing circuit, main separating brake trip-preventing circuit and secondary separating brake trip-preventing circuit, conjunction
Lock trip-preventing circuit, main separating brake trip-preventing circuit and secondary separating brake trip-preventing circuit are provided with corresponding optical coupling isolator, each light-coupled isolation
The input side connecting dividing lock signal output module of device is respectively used to receive the order, with regard to the order of landlord's separating brake and on the spot of closing a floodgate on the spot
Secondary separating brake order, the outlet side of each optical coupling isolator are simultaneously grounded after connecing by the control coil of anti-trip relay.Close a floodgate anti-jump electricity
The input side of optical coupling isolator is serially connected with breaker closing nodes of locations (i.e. breaker conjunction position signal) in road, which closes
Gate position node both ends and the normally opened contact for being connected to anti-trip relay, at the same the input terminal for the trip-preventing circuit that closes a floodgate be provided be access to it is disconnected
The circuit of road device closing coil is serially connected with the normally-closed contact of anti-trip relay on the circuit.
The working principle of anti-jump module are as follows: when breaker closing, close a floodgate order input combined floodgate trip-preventing circuit on the spot, when disconnected
After the completion of road device closes a floodgate, breaker closing nodes of locations closure, order of closing a floodgate on the spot passes through the light-coupled isolation of combined floodgate trip-preventing circuit
Device starts anti-trip relay (i.e. the control coil electrification of anti-trip relay), after anti-trip relay starting, passes through anti-trip relay
Normally-closed contact disconnects, and then cuts off the circuit for being access to closing coil, while carrying out self-sustaining by anti-trip relay normally opened contact,
Order of closing a floodgate on the spot does not disappear, and anti-trip relay does not just return, and effectively prevents the chattering of breaker；
When breaker open operation, main separating brake trip-preventing circuit is sent into regard to landlord's separating brake order, passes through main separating brake trip-preventing circuit
Optical coupling isolator directly initiates anti-trip relay, and cutting is access to the circuit of closing coil.After the completion of separating brake, with regard to landlord's separating brake order
It disappears, anti-trip relay returns, and restores combined floodgate integrity.If there is phenomena such as adhesion in breaker closing switch at this time, anti-jump
Relay does not just return, and effectively prevents breaker from jumping；
Similarly, secondary separating brake trip-preventing circuit is sent into secondary separating brake order on the spot, passes through the optical coupling isolator of secondary separating brake trip-preventing circuit
Anti-trip relay is directly initiated, cutting is access to the circuit of closing coil.After the completion of separating brake, secondary separating brake order disappears on the spot, anti-jump
Relay returns, and restores combined floodgate integrity.If phenomena such as adhesion occurs in breaker closing switch at this time, anti-trip relay is just not
It returns, effectively prevents breaker from jumping.
Manual divide-shut brake signal input module includes switching signal input module and on the spot sub-gate signal input module on the spot,
Each signal input module passes through corresponding optical coupling isolation circuit and is connected to MCU.The input side of specially each optical coupling isolation circuit
Divide-shut brake order on the spot is received by corresponding build-out resistor, the outlet side of each optical coupling isolation circuit is connect with MCU.Such as Fig. 3 institute
Show, the resistance value of resistance R1, R3, R4 and R6 are 3.4k Ω, and the resistance value of resistance R2 and R5 are 220 Ω, and optical coupling isolator is (simple in attached drawing
Referred to as optocoupler) model TLP291.
The working principle of manual divide-shut brake signal input module is described by taking single phase operation as an example: resistance R1, R2, R3 and
Corresponding optical coupling isolator constitutes combined floodgate order circuit on the spot.For operating on the basis of voltage DC220V, when switching signal electricity
It forces down when DC187V or combined floodgate power are lower than 5W, entry condition is not achieved in optocoupler (15), and order of closing a floodgate on the spot will not be sent into
MCU.When switching signal voltage is more than or equal to DC187V or combined floodgate power is more than or equal to 5W, MCU is sent into order of closing a floodgate on the spot,
MCU will continuously monitor order of closing a floodgate on the spot, and only continuous order of closing a floodgate on the spot is monitored to, and MCU just will be considered that be closed on the spot
Lock order is effective.
Resistance R4, R5, R6 and corresponding optical coupling isolator constitute separating brake order circuit on the spot.Wherein optical coupling isolator opens
Dynamic condition is identical as the optical coupling isolator in combined floodgate order circuit on the spot, does not do excessive introduction.Similarly, MCU will be monitored continuously
Separating brake order on the spot, only continuous separating brake order on the spot are monitored to, and MCU just will be considered that separating brake order is effective on the spot.
Divide-shut brake signal output module is designed using the photoelectric coupled circuit of standard, its working principle is that, MCU thinks to close a floodgate on the spot
Order and after separating brake order is effective on the spot, driving divide-shut brake signal output module work, in the driving of divide-shut brake signal output module
Portion's actuating of relay, output close a floodgate on the spot order, pair separating brake order, reliable in action are effective with regard to the order of landlord's separating brake and on the spot.
In the present embodiment, in order to avoid the open-phase operation of breaker, MCU is also connected with non-three phase processing module, non-complete
Phase processor module includes circuit breaker position signal input circuit, slot signal input circuit, alarm output circuit and display unit.
The input terminal of circuit breaker position signal input circuit, slot signal input circuit and MCU connects, and the output end of MCU controls connection
Alarm output circuit and display unit.It is specific as shown in figure 4, circuit breaker position signal input circuit includes input circuit 1 and defeated
Entering circuit 2, slot signal input circuit is input circuit 3, and alarm output circuit is output circuit, and display unit is that LED is shown,
Corresponding optical coupling isolator is provided in each input circuit and output circuit.The input side of optical coupling isolator in each input circuit
The position signal and slot signal of breaker are received, outlet side connects MCU；The input side of output circuit connects MCU, and outlet side connects
A relay is connect to alarm to control alarm module.
The working principle of non-three phase processing module are as follows: (i.e. master in Fig. 1 divides non-three phase position for the non-three phase position 1 of breaker
Set) MCU is sent by the optical coupling isolator in input circuit 1；(i.e. pair in Fig. 1 divides non-three phase for the non-three phase position 2 of breaker
Position) pass through the optical coupling isolator feeding MCU in input circuit 2.Timer inside MCU starts timing, at non-three phase
Reason logic is controlled.After timer reaches threshold value, MCU exports sub-gate signal by divide-shut brake signal output module, completes
Non-whole phase protection function, while MCU exports non-three phase alarm signal by output circuit, and is shown by LED.It is non-
Full phase threshold value set and defencive function is set can be adjusted by peripheral initialization circuit, and (peripheral initialization circuit is pressing commonly
Key assignments circuit sets the storage threshold value inside MCU by key).When needing involution alarm signal, slot signal
MCU is sent by the optical coupling isolator in input circuit 3.
Non-three phase position 1 and non-three phase position 2 are the inputs of breaker non-three phase position, when in the two signals at least
One it is effective when, that is, show that breaker is in non-three phase state.Once signal is effective, non-three phase processing module exports non-three phase
Alarm signal, even if breaker restores from non-three phase state, alarm signal also will be exported persistently, it is therefore desirable to involution order cancellation
Alarm, involution order are provided manually by operator, it is therefore an objective to make non-three phase module involution non-three phase alarm signal.
For the state of the divide-shut brake coil of monitoring breaker, MCU is also connected with sampled signal input module, sampling letter
Number input module includes being separately positioned on breaker three-phase combined floodgate, main separating brake, the voltage in secondary sub-gate circuit, current transformer,
For flowing through closing coil, main opening coil, secondary opening coil in timing acquiring three-phase combined floodgate, main separating brake, secondary sub-gate circuit
The voltage signal of current signal and each coil two sides, while MCU is also connected with coil exception output module as shown in Figure 7, line
It encloses abnormal output module and connects alarm module.The data that MCU is acquired according to sampled signal input module are to circuit-breaker switching on-off line
Round state is monitored.Further, when MCU is monitored including breaker non-action circuit-breaker switching on-off coil state and
Two kinds of situations of breaker actuation.
When breaker non-action, the electric current of acquisition, voltage data are supervised by circuit as shown in Figure 5 in MCU
Survey, specifically: in breaker non-action, MCU first to sampled signal input module in sampling interval (sampling interval 1 second,
1 hour sampling period) acquisition each coil current and voltage carry out sliding average value filtering respectively, and to filtered signal into
Row, which is multiplied, calculates the signal transient power in acquisition section.Signal transient power and factory threshold value 1 are subtracted each other into rear obtained difference
Value obtains corresponding result divided by factory threshold value 1.If the result be not more than 1, using above-mentioned calculated signal transient power as
New (standard value that original factory threshold value 1 the is setting) deposit of factory threshold value 1 MCU；If the result is greater than 1, then judge
Whether the result is greater than 2, without any processing if the result is no more than 2, different by coil if the result is greater than 2
Norm block exports failure alarm signal.
Work as breaker actuation, the electric current of acquisition, voltage data are monitored by circuit as shown in FIG. 6 in MCU, has
Body are as follows: in breaker actuation, MCU central processing unit first to sampled signal input module in sampling interval (breaker
Entire action process) acquisition each coil current and voltage carry out sliding average value filtering respectively, and to filtered signal into
Row, which is multiplied, calculates the signal transient power of sampling interval.The instantaneous power and factory threshold value 2 are subjected to division arithmetic, if should
As a result it is greater than 2, failure alarm signal is exported by coil abnormal module, it is on the contrary then right (i.e. in movement section) in sampling interval
Instantaneous power is averaged, and the average value and factory threshold value 3 do division arithmetic, if the result after being divided by is greater than 2, passes through line
It encloses abnormal module and exports failure alarm signal, on the contrary then do nothing, waiting next operation.
Above-mentioned MCU is suitable for closing coil, main separating brake to the control logic that circuit-breaker switching on-off coil state is monitored
Coil and secondary opening coil, but because breaking-closing operating function is different, so closing coil and main opening coil, secondary opening coil go out
Factory's threshold value is not identical, wherein the factory threshold value of main opening coil and secondary opening coil is consistent.
Coil exception output module is made of the optical coupling isolation circuit of three standards, and it is abnormal, main to receive closing coil respectively
The alarm signal of the abnormal and secondary opening coil exception of opening coil.The input side of each optocoupler connects MCU, and outlet side connection is corresponding
Alarm output circuit, so that alarm module is alarmed, alarm output circuit and alarm module here can be above-mentioned non-complete
Alarm output circuit and alarm module in phase processor module, are also possible to individual alarm output circuit and alarm module,
The present invention is without limitation.
Control system further includes block signal input module and block signal output module, and block signal input module
Output end connects MCU, the input terminal of MCU connection block signal output module；Anti-jump module exports mould by block signal simultaneously
Block connects closing coil, and the output end of block signal output module is also connected with main opening coil and secondary opening coil, carries out
It controls respectively.Block signal input module is for receiving breaker oil pressure and air pressure signal, and block signal output module is for closing
Lock corresponding circuit.Breaker oil pressure and air pressure signal are first fed into block signal input module, in block signal input module
Portion, which is filtered after stabilization is handled, is sent into MCU, after MCU is by the be sent into signal of judgement, is closed by block signal output module
Lock corresponding circuit (including combined floodgate circuit).The circuit structure of block signal input module and manual divide-shut brake signal input module
Unanimously, biggish driving power effectively avoids the influence that contact bounce generates circuit, improves the reliability of equipment.
The received divide-shut brake order of the above MCU institute is divide-shut brake order on the spot, certainly when breaker runs work, is also wanted
Distant place combined floodgate order, the main separating brake order in a distant place and distant place pair separating brake order are received, it is anti-jump that these orders, which access anti-jump modules,
The precondition of module starting anti-bouncing function.Anti-jump module is sent into these orders, according to circumstances starts anti-jump function for anti-jump module
Energy.But these orders are directly access to block signal output module in inside simultaneously, are access to conjunction again by block signal output module
Brake cable circle, main opening coil and secondary opening coil.That is, anti-jump module breaks down, the investment of anti-bouncing function is only influenced,
Have no effect on normal breaking-closing operating.This system further includes that closing circuit monitoring, the monitoring of main sub-gate circuit and secondary separating brake return
Road monitoring, these monitoring circuits are monitoring of the relay protection device to relay control circuit, unrelated to the invention, therefore are not done
It is excessive to introduce.
In order to guarantee the normal work of MCU, MCU is also connected with the auxiliary circuits such as power supply/clock/storage, power supply be used for
MCU power supply, clock are used for MCU input time data, and memory module is for storing control program performed by MCU, these are all
It is not main contents of the invention, therefore does not do excessive introduction.
Claims (7)
1. a kind of circuit-breaker switching on-off integrated control system, which is characterized in that the circuit-breaker switching on-off integrated control system packet
Manual divide-shut brake signal input module, the divide-shut brake signal output module for including central processing unit and being connect with central processing unit,
The output end of divide-shut brake signal output module is connected with anti-jump module, and the manual divide-shut brake signal input module is for receiving just
Ground divide-shut brake order simultaneously divide-shut brake order will be input to central processing unit on the spot, and central processing unit is according to the division on the spot received
Lock order is sent to anti-jump module by divide-shut brake signal output module, and the anti-jump module includes combined floodgate trip-preventing circuit, main point
Lock trip-preventing circuit and secondary separating brake trip-preventing circuit, the output of combined floodgate trip-preventing circuit, main separating brake trip-preventing circuit and secondary separating brake trip-preventing circuit
It is grounded after holding and connecing by anti-trip relay, input terminal connecting dividing lock signal output module is respectively used to receive life of closing a floodgate on the spot
It enables, with regard to the order of landlord's separating brake and on the spot secondary separating brake order, is serially connected with breaker closing nodes of locations on combined floodgate trip-preventing circuit, this is disconnected
Road device closing position node both ends and the normally opened contact for being connected to anti-trip relay, the input terminal of the combined floodgate trip-preventing circuit are provided with
It is access to the circuit of breaker closing coil, the normally-closed contact of anti-trip relay is serially connected on the circuit.
2. circuit-breaker switching on-off integrated control system according to claim 1, which is characterized in that the manual divide-shut brake letter
Number input module includes switching signal input module and on the spot sub-gate signal input module on the spot, and each signal input module passes through
Corresponding optical coupling isolation circuit is connected to central processing unit.
3. circuit-breaker switching on-off integrated control system according to claim 2, which is characterized in that in each signal input module
The startup power of corresponding optical coupling isolation circuit is all larger than 5W.
4. circuit-breaker switching on-off integrated control system according to claim 1 or 2 or 3, which is characterized in that described close a floodgate is prevented
Jumping circuit, main separating brake trip-preventing circuit and secondary separating brake trip-preventing circuit are provided with corresponding optical coupling isolator.
5. circuit-breaker switching on-off integrated control system according to claim 1 or 2 or 3, which is characterized in that the centre
Reason device is also connected with non-three phase processing module, and the non-three phase processing module includes circuit breaker position signal input circuit and alarm
The input terminal of output circuit, circuit breaker position signal input circuit and central processing unit connects, for obtaining the position of breaker,
The alarm output circuit controls connection by the output end of central processing unit, and the central processing unit is believed circuit breaker position is received
Number carry out timing, according to non-three phase handle logic control alarm output circuit.
6. circuit-breaker switching on-off integrated control system according to claim 5, which is characterized in that the central processing unit is also
It is connected with sampled signal input module, the sampled signal input module includes being separately positioned on breaker three-phase combined floodgate, main point
Lock, the voltage in secondary sub-gate circuit, current transformer, for acquiring three-phase combined floodgates, main separating brake, flowing through correspondence in pair sub-gate circuit
The voltage signal of the current signal of coil and corresponding coil two sides, the central processing unit are used for according to sampled signal input module
The data of acquisition are monitored the state of breaker closing coil, main opening coil and secondary opening coil.
7. circuit-breaker switching on-off integrated control system according to claim 6, which is characterized in that the central processing unit pair
When circuit-breaker switching on-off coil state is monitored including breaker actuation and two kinds of situations of breaker non-action.
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| CN201811604738.3A CN109782657B (en) | 2018-12-26 | 2018-12-26 | Circuit breaker divide-shut brake integrated control system |
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| CN201811604738.3A CN109782657B (en) | 2018-12-26 | 2018-12-26 | Circuit breaker divide-shut brake integrated control system |
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| CN113541095A (en) * | 2021-06-17 | 2021-10-22 | 国网上海市电力公司 | Circuit breaker control method and device |
| CN114019872A (en) * | 2021-11-05 | 2022-02-08 | 中冶赛迪电气技术有限公司 | Circuit breaker opening and closing time sequence and fault judgment logic control system thereof |
| CN114441896A (en) * | 2021-12-30 | 2022-05-06 | 云南电网有限责任公司曲靖供电局 | Distribution network automation simulation platform and FTU detection method |
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| CN110473724A (en) * | 2019-08-14 | 2019-11-19 | 珠海存中信息技术有限公司 | A kind of automatic three-phase control system of medium voltage electricity switch |
| CN111653460B (en) * | 2020-05-29 | 2023-01-17 | 中国电力科学研究院有限公司 | Wireless communication circuit breaker with internal load |
| CN111653460A (en) * | 2020-05-29 | 2020-09-11 | 中国电力科学研究院有限公司 | Wireless communication circuit breaker with internal load |
| CN111781852A (en) * | 2020-06-05 | 2020-10-16 | 许昌开普检测研究院股份有限公司 | Integrated modeling method for control logic and state signal of digital analog circuit breaker |
| CN111781852B (en) * | 2020-06-05 | 2024-03-29 | 许昌开普检测研究院股份有限公司 | Integrated modeling method for digital analog circuit breaker control logic and state signal |
| CN111707891A (en) * | 2020-06-17 | 2020-09-25 | 广东电网有限责任公司 | Secondary circuit monitor |
| CN112067984A (en) * | 2020-09-03 | 2020-12-11 | 国家电网有限公司 | Non-full-phase function testing device for circuit breaker |
| CN112147498A (en) * | 2020-09-23 | 2020-12-29 | 广州市扬新技术研究有限责任公司 | Module for monitoring and controlling direct current breaker |
| CN112688424A (en) * | 2020-12-09 | 2021-04-20 | 广西电网有限责任公司电力科学研究院 | Control system of intelligent high-voltage circuit breaker anti-tripping loop |
| CN113541095A (en) * | 2021-06-17 | 2021-10-22 | 国网上海市电力公司 | Circuit breaker control method and device |
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| CN114019872B (en) * | 2021-11-05 | 2023-11-14 | 中冶赛迪电气技术有限公司 | Circuit breaker opening and closing time sequence and fault judgment logic control system thereof |
| CN114019872A (en) * | 2021-11-05 | 2022-02-08 | 中冶赛迪电气技术有限公司 | Circuit breaker opening and closing time sequence and fault judgment logic control system thereof |
| CN114441896A (en) * | 2021-12-30 | 2022-05-06 | 云南电网有限责任公司曲靖供电局 | Distribution network automation simulation platform and FTU detection method |
| CN114441896B (en) * | 2021-12-30 | 2023-05-26 | 云南电网有限责任公司曲靖供电局 | Distribution network automatic simulation platform and FTU detection method |
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