CN207588442U - A kind of operation control circuit of breaker - Google Patents
A kind of operation control circuit of breaker Download PDFInfo
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- CN207588442U CN207588442U CN201721650811.1U CN201721650811U CN207588442U CN 207588442 U CN207588442 U CN 207588442U CN 201721650811 U CN201721650811 U CN 201721650811U CN 207588442 U CN207588442 U CN 207588442U
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- breaker
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- trip
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Abstract
The utility model is related to a kind of operation control circuits of breaker, including control power supply, closing circuit, trip position monitoring circuit, trip(ping) circuit, closing position monitoring circuit, control switch and anti-jump loop, optically isolated solid-state relay TWJ is equipped in the trip position monitoring circuit；The closing circuit is connected on the both ends of the control power supply with breaker HC；One end of the trip position monitoring circuit is connected on the anode of the control power supply, and the other end is connected on the common end between the closing circuit and breaker HC；The trip(ping) circuit is connected on the both ends of the control power supply with breaker TQ.The utility model sets an optically isolated solid-state relay TWJ in trip position monitoring circuit, the starting current of the relay is 2mA, the closing circuit that can access breaker does not start anti-trip relay again, so as to achieve the purpose that monitoring breaker trip position and control loop template.
Description
Technical field
The utility model is related to the controls of relay protection of power system breaker operator, and in particular to a kind of behaviour of breaker
Make control loop.
Background technology
At present, the control loop of the relay protection operation of well known common breaker is as shown in Figure 1, the operation circuit exists
During breaker normal operation and CPU linkages control breaker open operation by BCJ-1 contacts, and breaker closing is controlled by SHJ-2 contacts,
Jump, closing loop is monitored by tripping supervisory relay TWJ, combined floodgate supervisory relay HWJ simultaneously, and relay is monitored by breaker tripping and closing
Device combines to detect control loop template.Prevent breaker from jumping by anti-trip relay TBJV.
Included anti-jump loop breaker is since circuit breaker internal carries anti-jump loop, as it uses common relay protection behaviour
Make circuit as shown in Fig. 2, while carrying anti-jump loop breaker closing, included anti-jump loop breaker auxiliary normally opened contact closes
It closes, included anti-trip relay K0 live line works, K0 contacts disconnect closing circuit, are also turned on trip-proof lockout circuit, anti-jump
Relay K0 self-sustainings under lasting switching signal, remain off closing circuit, until the disappearance of lasting switching signal, K0
Decompression is replied.
As shown in Fig. 2, according to the control loop of normal circuit breaker relay protection operation, carry anti-jump loop breaker and close
While lock, carry anti-jump loop breaker auxiliary normally opened contact and be closed, anti-trip relay K0 live line works, at this time due to tripping
Supervisory relay TWJ circuits are charged, even if without lasting switching signal, since anti-trip relay K0 operating currents only have 4mA,
So that anti-trip relay K0 continuous firings disconnect closing coil circuit so that included anti-jump loop breaker can not normal occlusion again
Lock causes included anti-jump loop breaker that can only close a floodgate primary failure, can only power off control loop to fix a breakdown, now
Way be to disconnect tripping supervisory relay TWJ and to remove the anti-trip relay TBJV in relay protection, open position changes by supervising
Completed depending on auxiliary contacts of circuit breaker, anti-trip relay TBJV this method removed in relay protection can use, but open position change by
Monitoring auxiliary contacts of circuit breaker come complete it is determining be that cannot monitor control loop template completely.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of operation control circuits of breaker, can grasp simultaneously
Make control normal circuit breaker and included anti-jump loop breaker so that normal in included anti-jump loop breaker operated
In journey carry anti-trip relay K0 do not start due to trip position monitoring circuit, can normally monitoring breaker open position with
Monitor control loop template.
The technical solution that the utility model solves above-mentioned technical problem is as follows：A kind of operation control circuit of breaker, packet
Include control power supply, closing circuit, trip position monitoring circuit, trip(ping) circuit, closing position monitoring circuit, control switch and it is anti-jump
Circuit is equipped with optically isolated solid-state relay TWJ in the trip position monitoring circuit；The closing circuit is connected with breaker HC
At the both ends of the control power supply；One end of the trip position monitoring circuit is connected on the anode of the control power supply, separately
One end is connected on the common end between the closing circuit and breaker HC；The trip(ping) circuit is connected on institute with breaker TQ
State the both ends of control power supply；One end of the closing position monitoring circuit is connected on the anode of the control power supply, the other end
It is connected on the common end between the trip(ping) circuit and breaker TQ；The control switch is connected on the control with anti-jump loop
The both ends of power supply processed；The closing circuit is additionally attached on the common end between the control switch and anti-jump loop；The control
System switch is also connected with the trip(ping) circuit.
The beneficial effects of the utility model are：Breaker HC had been both in a kind of operation control circuit of breaker of the utility model
Can be common breaker, or included anti-jump loop breaker, set in trip position monitoring circuit a light every
From solid-state relay TWJ, the starting current of the relay is 2mA, can access the closing circuit of included anti-jump loop breaker again
Do not start anti-trip relay, so as to achieve the purpose that monitoring breaker trip position and control loop template.
Based on the above technical solution, the utility model can also do following improvement.
Further, the trip position monitoring circuit includes optically isolated solid-state relay TWJ, current-limiting resistance R2 and filtered electrical
Feel L102, one end of the optically isolated solid-state relay TWJ is connected on the anode of the control power supply, and the other end passes through described
Current-limiting resistance R2 is connected on the common end between the closing circuit and breaker HC, the optically isolated solid-state relay TWJ
Switch one side joint 24V power supplys, the switch opposite side of the optically isolated solid-state relay TWJ is connected to the filter inductance
On one end of L102, the other end and the CPU of the filter inductance L102 link.
Further, the closing circuit include combined floodgate guard relay HBJ, diode D2, diode D3, diode D4,
Resistance R3, TBJV-1 contact, HBJ-1 contacts, HBJ-2 contacts and SHJ-2 contacts, one end of the combined floodgate guard relay HBJ
It is connected on one end of the breaker HC, the other end of the breaker HC is connected on the cathode of the control power supply, institute
The other end for stating combined floodgate guard relay HBJ passes sequentially through the TBJV-1 contacts and HBJ-2 contacts are connected to the control electricity
On the anode in source, the HBJ-1 contacts and SHJ-2 contacts are connected in parallel on the both ends of the HBJ-2 contacts, the diode D2 respectively
It is connected on the both ends of the combined floodgate guard relay HBJ after connecting with diode D3, the diode D4 and resistance R3 series connection
It is connected to afterwards on the both ends of the combined floodgate guard relay HBJ.
Further, switch J1 is also parallel on the both ends of the TBJV-1 contacts.
Further, the trip(ping) circuit include tripping guard relay TBJ, diode D6, diode D7, diode D8,
Resistance R6, BCJ-1 contact, 2LP and TBJ-2 contacts, one end of the tripping guard relay TBJ and one end phase of breaker TQ
Even, the other end of the breaker TQ is connected with the cathode of the control power supply, the other end of the tripping guard relay TBJ
It is connected to by the TBJ-2 contacts on the anode of the control power supply, the BCJ-1 contacts connect after connecting with the 2LP
At the both ends of the TBJ-2 contacts, the diode D6 is connected to the tripping and keeps relay after connecting with the diode D7
On the both ends of device TBJ, the diode D8 is connected to after connecting with resistance R6 on the both ends of the tripping guard relay TBJ.
Further, the anti-jump loop includes anti-trip relay TBJV, TBJ-1 contact, TBJV-1 contacts, current-limiting resistance
One end of R5, diode D5 and resistance R4, the anti-trip relay TBJV are connected to the control electricity by the control switch
On the anode in source, the other end of the anti-trip relay TBJV passes sequentially through TBJV-1 contacts and current-limiting resistance R5 be connected to it is described
On the cathode for controlling power supply, the TBJ-1 contacts are connected in parallel on the both ends of the TBJV-1 contacts, the diode D5 and resistance R4
It is connected to after series connection on the both ends of the anti-trip relay TBJV；Between the anti-trip relay TBJV and the control switch
Common end of the common end also between the SHJ-2 contacts and TBJV-1 contacts is connected, and the control switch is additionally attached to described
On common end between TBJ-2 and the tripping guard relay TBJ.
Further, switch J2 is also parallel on the both ends of the anti-trip relay TBJV.
Further, the closing position monitoring circuit includes combined floodgate supervisory relay HWJ, current-limiting resistance R8, diode D9
With resistance R7, one end of the combined floodgate supervisory relay HWJ is connected on the anode of the control power supply, and the other end passes through described
Current-limiting resistance R8 is connected on the common end between the trip(ping) circuit and breaker TQ, the diode D9 and resistance R7 series connection
It is connected to afterwards on the both ends of the tripping guard relay TBJ.
Description of the drawings
Fig. 1 is the electrical block diagram in the relay protection operation circuit of existing normal circuit breaker；
Fig. 2 is the electrical block diagram that included operation circuit breaker uses normal operations circuit；
Fig. 3 is a kind of structure diagram of the operation control circuit of breaker of the utility model；
Fig. 4 is a kind of electrical block diagram of the operation control circuit of breaker of the utility model.
Specific embodiment
The principle and feature of the utility model are described below in conjunction with attached drawing, example is served only for explaining this practicality
It is novel, it is not intended to limit the scope of the utility model.
As shown in figure 3, a kind of operation control circuit of breaker, including control power supply, closing circuit, trip position monitoring
Circuit, trip(ping) circuit, closing position monitoring circuit, control switchs and anti-jump loop, is equipped in the trip position monitoring circuit
Optically isolated solid-state relay TWJ；Wherein, the closing circuit and trip(ping) circuit can respectively link with CPU；It is described to close a floodgate back
Road is connected on the both ends of the control power supply with breaker HC；One end of the trip position monitoring circuit is connected to the control
On the anode of power supply, the other end is connected on the common end between the closing circuit and breaker HC；The trip(ping) circuit with
Breaker TQ is connected on the both ends of the control power supply；One end of the closing position monitoring circuit is connected to the control power supply
Anode on, the other end is connected on the common end between the trip(ping) circuit and breaker TQ；It is described control switch with it is anti-jump
Circuit in series is at the both ends of the control power supply；The closing circuit is additionally attached between the control switch and anti-jump loop
On common end；The control switch is also connected with the trip(ping) circuit.
Breaker HC in a kind of operation control circuit of breaker of the utility model both can be common breaker,
It can be included anti-jump loop breaker.When breaker HC is included anti-jump loop breaker, inside come with it is anti-jump after
Electric appliance K0, below by taking breaker HC is included anti-jump loop breaker as an example.
(+KM is in order to control in Fig. 4 as shown in Figure 4 for a kind of circuit structure of the operation control circuit of breaker of the utility model
The anode of power supply, the cathode of-KM power supplys in order to control)：
The trip position monitoring circuit includes optically isolated solid-state relay TWJ, current-limiting resistance R2 and filter inductance L102,
One end of the optically isolated solid-state relay TWJ is connected on the anode of the control power supply, and the other end passes through current limliting electricity
Resistance R2 is connected on the common end between the closing circuit and breaker HC, the switch of the optically isolated solid-state relay TWJ
One side joint 24V power supplys, the switch opposite side of the optically isolated solid-state relay TWJ is connected to the one of the filter inductance L102
On end, the other end and the CPU of the filter inductance L102 link.In the utility model, in the trip position monitoring circuit
Selection light is 2mA every the starting current of solid-state relay TWJ every solid-state relay TWJ, model ASSR-301C, light,
Less than the starting current of anti-trip relay K0 included inside breaker HC so that in the normal operating process of breaker HC
Anti-trip relay K0 does not start due to the trip position monitoring circuit, can normal monitoring breaker HC open position and prison
Depending on control loop template.In addition, the model BF2041RT of the filter inductance L102.
The closing circuit include combined floodgate guard relay HBJ, diode D2, diode D3, diode D4, resistance R3,
TBJV-1 contacts, HBJ-1 contacts, HBJ-2 contacts and SHJ-2 contacts, one end of the combined floodgate guard relay HBJ are connected to institute
On the one end for stating breaker HC, the other end of the breaker HC is connected on the cathode of the control power supply, and described close a floodgate is protected
The other end for holding relay HBJ passes sequentially through the TBJV-1 contacts and HBJ-2 contacts are connected to the anode of the control power supply
On, the HBJ-1 contacts and SHJ-2 contacts are connected in parallel on both ends (HBJ-1 contacts and the HBJ-2 contacts of the HBJ-2 contacts respectively
HBJ normal opened contacts are collectively constituted, SHJ-2 contacts are specially the normal opened contact of closing relay SHJ to link with CPU), described two
It is connected on the both ends of the combined floodgate guard relay HBJ after pole pipe D2 and diode D3 series connection, the diode D4 and resistance
It is connected on the both ends of the combined floodgate guard relay HBJ after R3 series connection.It is also parallel with out on the both ends of the TBJV-1 contacts
Close J1.In this embodiment, diode D4 selects IN1007, resistance R3 to select RJ-3w-10k Ω, diode D4 and resistance
The coil both sides of combined floodgate guard relay HBJ are reversely connected in parallel on after R3 series connection again, diode D4 and resistance R3 are continuous current circuit, are protected
Protect combined floodgate guard relay HBJ；Diode D2 and diode D3 is selected after IN5408, diode D2 and diode D3 series connection just
To the coil both sides for being parallel to combined floodgate guard relay HBJ, for generating the operation voltage needed for combined floodgate guard relay HBJ；
HBJ relays select ST2-DC1.5V-F；TBJV-1 contacts are the normal of the anti-trip relay TBJV in following anti-jump loops
Close contact, that is to say, that the normally closed contact of the anti-trip relay TBJV is connected in closing circuit, switch J1 be connected in parallel on its two
End.
The trip(ping) circuit include tripping guard relay TBJ, diode D6, diode D7, diode D8, resistance R6,
BCJ-1 contacts (BCJ-1 contacts are the normal opened contact of tripping relay BCJ to link with CPU), 2LP and TBJ-2 contacts (TBJ-2
Contact is the normal opened contact of tripping guard relay TBJ), one end and the one of breaker TQ of the tripping guard relay TBJ
End is connected, and the other end of the breaker TQ is connected with the cathode of the control power supply, and the tripping guard relay TBJ's is another
One end is connected to by the TBJ-2 contacts on the anode of the control power supply, after the BCJ-1 contacts are connected with the 2LP
The both ends of the TBJ-2 contacts are connected to, the diode D6 is connected to the tripping and keeps after connecting with the diode D7
On the both ends of relay TBJ, the diode D8 is connected to the both ends of the tripping guard relay TBJ after connecting with resistance R6
On.In this embodiment, diode D8 selects IN1007, resistance R6 to select RJ-3w-10k Ω, diode D8 and resistance R6
The coil both sides of tripping guard relay TBJ are reversely connected in parallel on after series connection again, diode D8 and resistance R6 are continuous current circuit, are protected
Trip guard relay TBJ；Diode D6 and diode D7 selects IN5408, diode D6 and diode D7 positive after connecting
The coil both sides of tripping guard relay TBJ are parallel to, for generating the operation voltage needed for tripping guard relay TBJ；Institute
It states tripping guard relay TBJ and selects ST2-DC1.5V-F.
The anti-jump loop includes anti-trip relay TBJV, TBJ-1 contact, and (TBJ-1 contacts are tripping guard relay TBJ
Normally closed contact), the TBJV-1 contacts normally closed contact of anti-trip relay TBJV (TBJV-1 contacts be), current-limiting resistance R5, two poles
One end of pipe D5 and resistance R4, the anti-trip relay TBJV are connected to the anode of the control power supply by the control switch
On, the other end of the anti-trip relay TBJV passes sequentially through TBJV-1 contacts and current-limiting resistance R5 is connected to the control power supply
Cathode on, the TBJ-1 contacts are connected in parallel on the both ends of the TBJV-1 contacts, connect after the diode D5 and resistance R4 series connection
It is connected on the both ends of the anti-trip relay TBJV；Common end between the anti-trip relay TBJV and the control switch is also
Common end between the SHJ-2 contacts and TBJV-1 contacts is connected, and the control switch is additionally attached to the TBJ-2 and institute
It states on the common end between tripping guard relay TBJ.Switch J2 is also parallel on the both ends of the anti-trip relay TBJV.
The closing position monitoring circuit includes combined floodgate supervisory relay HWJ, current-limiting resistance R8, diode D9 and resistance
One end of R7, the combined floodgate supervisory relay HWJ are connected on the anode of the control power supply, and the other end passes through current limliting electricity
Resistance R8 is connected on the common end between the trip(ping) circuit and breaker TQ, is connected after the diode D9 and resistance R7 series connection
On the both ends of the tripping guard relay TBJ.In this embodiment, diode D9 selects IN1007, resistance R7 choosings
The coil both sides of combined floodgate supervisory relay HWJ are reversely connected in parallel on after being connected with RJ-3w-10k Ω, diode D9 and resistance R7 again,
Diode D9 and resistance R7 is continuous current circuit, protects combined floodgate supervisory relay HWJ.
To realize that normal circuit breaker and included anti-jump loop breaker share the operation control circuit of the utility model, certainly
Band anti-jump loop breaker will switch J1 and switch J2 short circuits when using this operation circuit.
Breaker HC both can be common breaker in a kind of operation control circuit of breaker of the utility model, also may be used
Think included anti-jump loop breaker, an optically isolated solid-state relay TWJ, the relay are set in trip position monitoring circuit
Starting current for 2mA, the closing circuit that can access included anti-jump loop breaker does not start anti-trip relay again, so as to reach
The purpose of monitoring breaker trip position and control loop template.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (8)
1. a kind of operation control circuit of breaker, it is characterised in that：Including control power supply, closing circuit, trip position monitoring
Circuit, trip(ping) circuit, closing position monitoring circuit, control switchs and anti-jump loop, is equipped in the trip position monitoring circuit
Optically isolated solid-state relay TWJ；The closing circuit is connected on the both ends of the control power supply with breaker HC；The tripping position
The one end for putting monitoring circuit is connected on the anode of the control power supply, and the other end is connected to the closing circuit and breaker HC
Between common end on；The trip(ping) circuit is connected on the both ends of the control power supply with breaker TQ；The closing position prison
The one end on survey time road is connected on the anode of the control power supply, and the other end is connected between the trip(ping) circuit and breaker TQ
Common end on；The control switch is connected on the both ends of the control power supply with anti-jump loop；The closing circuit is also connected with
On common end between the control switch and anti-jump loop；The control switch is also connected with the trip(ping) circuit.
2. a kind of operation control circuit of breaker according to claim 1, it is characterised in that：The trip position monitoring
Circuit includes optically isolated solid-state relay TWJ, current-limiting resistance R2 and filter inductance L102, the optically isolated solid-state relay TWJ
One end be connected to it is described control power supply anode on, the other end by the current-limiting resistance R2 be connected to the closing circuit with
On common end between breaker HC, the one side joint 24V power supplys of switch of the optically isolated solid-state relay TWJ, the light every
Switch opposite side from solid-state relay TWJ is connected on one end of the filter inductance L102, the filter inductance L102's
The other end links with CPU.
3. a kind of operation control circuit of breaker according to claim 1 or 2, it is characterised in that：The closing circuit
Including combined floodgate guard relay HBJ, diode D2, diode D3, diode D4, resistance R3, TBJV-1 contact, HBJ-1 contacts,
HBJ-2 contacts and SHJ-2 contacts, one end of the combined floodgate guard relay HBJ are connected on one end of the breaker HC, institute
The other end for stating breaker HC is connected on the cathode of the control power supply, the other end of the combined floodgate guard relay HBJ according to
It is secondary by the TBJV-1 contacts and HBJ-2 contacts be connected to it is described control power supply anode on, the HBJ-1 contacts and
SHJ-2 contacts are connected in parallel on the both ends of the HBJ-2 contacts respectively, and the diode D2 and diode D3 are connected to described after connecting
On the both ends of combined floodgate guard relay HBJ, the combined floodgate guard relay is connected to after the diode D4 and resistance R3 series connection
On the both ends of HBJ.
4. a kind of operation control circuit of breaker according to claim 3, it is characterised in that：The TBJV-1 contacts
Switch J1 is also parallel on both ends.
5. a kind of operation control circuit of breaker according to claim 3, it is characterised in that：The trip(ping) circuit includes
Trip guard relay TBJ, diode D6, diode D7, diode D8, resistance R6, BCJ-1 contact, 2LP and TBJ-2 contacts,
One end of the tripping guard relay TBJ is connected with one end of breaker TQ, the other end and the control of the breaker TQ
The cathode of power supply processed is connected, and the other end of the tripping guard relay TBJ is connected to the control by the TBJ-2 contacts
On the anode of power supply, the BCJ-1 contacts are connected to the both ends of the TBJ-2 contacts, the diode after connecting with the 2LP
D6 is connected to after connecting with the diode D7 on the both ends of the tripping guard relay TBJ, the diode D8 and resistance
It is connected to after R6 series connection on the both ends of the tripping guard relay TBJ.
6. a kind of operation control circuit of breaker according to claim 5, it is characterised in that：The anti-jump loop includes
Anti-trip relay TBJV, TBJ-1 contact, TBJV-1 contacts, current-limiting resistance R5, diode D5 and resistance R4, the anti-jump relay
One end of device TBJV is connected to by the control switch on the anode of the control power supply, and the anti-trip relay TBJV's is another
One end passes sequentially through TBJV-1 contacts and current-limiting resistance R5 is connected on the cathode of the control power supply, and the TBJ-1 contacts are simultaneously
The both ends of the TBJV-1 contacts are associated in, are connected to the anti-trip relay TBJV's after the diode D5 and resistance R4 series connection
On both ends；The anti-trip relay TBJV and it is described control switch between common end also with the SHJ-2 contacts and TBJV-1
Common end between contact is connected, and the control switch is additionally attached between the TBJ-2 and the tripping guard relay TBJ
Common end on.
7. a kind of operation control circuit of breaker according to claim 6, it is characterised in that：The anti-trip relay
Switch J2 is also parallel on the both ends of TBJV.
8. a kind of operation control circuit of breaker according to claim 5 or 6 or 7, it is characterised in that：The closing position
It puts monitoring circuit and includes combined floodgate supervisory relay HWJ, current-limiting resistance R8, diode D9 and resistance R7, the monitoring relay of closing a floodgate
One end of device HWJ is connected on the anode of the control power supply, and the other end is connected to the tripping by the current-limiting resistance R8
On common end between circuit and breaker TQ, the tripping holding relay is connected to after the diode D9 and resistance R7 series connection
On the both ends of device TBJ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721650811.1U CN207588442U (en) | 2017-12-01 | 2017-12-01 | A kind of operation control circuit of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721650811.1U CN207588442U (en) | 2017-12-01 | 2017-12-01 | A kind of operation control circuit of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207588442U true CN207588442U (en) | 2018-07-06 |
Family
ID=62734963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721650811.1U Expired - Fee Related CN207588442U (en) | 2017-12-01 | 2017-12-01 | A kind of operation control circuit of breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207588442U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111986939A (en) * | 2020-07-30 | 2020-11-24 | 许继集团有限公司 | Tripping and closing control system of circuit breaker and monitoring method thereof |
| CN112039029A (en) * | 2020-09-03 | 2020-12-04 | 中国南方电网有限责任公司超高压输电公司南宁局 | Controlled anti-tripping circuit of circuit breaker |
| 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 |
| CN113472072A (en) * | 2021-06-02 | 2021-10-01 | 南方电网调峰调频发电有限公司 | Circuit breaker operation box and power system |
| CN117578743A (en) * | 2024-01-17 | 2024-02-20 | 仟亿达集团股份有限公司 | Frame circuit breaker trip circuit monitoring system and method |
-
2017
- 2017-12-01 CN CN201721650811.1U patent/CN207588442U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111986939A (en) * | 2020-07-30 | 2020-11-24 | 许继集团有限公司 | Tripping and closing control system of circuit breaker and monitoring method thereof |
| CN111986939B (en) * | 2020-07-30 | 2023-09-15 | 许继集团有限公司 | Tripping and closing control system of circuit breaker and monitoring method thereof |
| CN112039029A (en) * | 2020-09-03 | 2020-12-04 | 中国南方电网有限责任公司超高压输电公司南宁局 | Controlled anti-tripping circuit of circuit breaker |
| 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 |
| CN113472072A (en) * | 2021-06-02 | 2021-10-01 | 南方电网调峰调频发电有限公司 | Circuit breaker operation box and power system |
| CN113472072B (en) * | 2021-06-02 | 2023-07-21 | 南方电网调峰调频发电有限公司 | Double-working-mode breaker operation box |
| CN117578743A (en) * | 2024-01-17 | 2024-02-20 | 仟亿达集团股份有限公司 | Frame circuit breaker trip circuit monitoring system and method |
| CN117578743B (en) * | 2024-01-17 | 2024-04-16 | 仟亿达集团股份有限公司 | Frame circuit breaker trip circuit monitoring system and method |
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Granted publication date: 20180706 Termination date: 20201201 |