CN202978240U - Breaker closing circuit protecting device and corresponding breaker closing circuit - Google Patents
Breaker closing circuit protecting device and corresponding breaker closing circuit Download PDFInfo
- Publication number
- CN202978240U CN202978240U CN 201220495828 CN201220495828U CN202978240U CN 202978240 U CN202978240 U CN 202978240U CN 201220495828 CN201220495828 CN 201220495828 CN 201220495828 U CN201220495828 U CN 201220495828U CN 202978240 U CN202978240 U CN 202978240U
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- closing circuit
- circuit
- closing
- main
- circuit breaker
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Abstract
The utility model relates to a breaker closing circuit protecting device and a corresponding breaker closing circuit. The breaker closing circuit protecting device comprises a backup closing circuit for turning on the breaker closing circuit when a main closing circuit is faulty; a switching module for starting the backup closing circuit when the main closing circuit is faulty; and an alarm module for emitting alarm signals when the main closing circuit is faulty. The switching module is respectively connected with the backup closing circuit and the main closing circuit. The alarm module is connected with the backup closing circuit. The utility model further relates to the breaker closing circuit. The breaker closing circuit protecting device and the corresponding breaker closing circuit can have the safety and reliability of the breaker closing circuit guaranteed and further ensure the breaker closing success rate.
Description
Technical field
The utility model relates to the electric power control field, more particularly, relates to a kind of closing circuit of circuit breaker protective device and corresponding closing circuit of circuit breaker that is provided with pairing lock loop.
Background technology
In recent years, along with the extensive use of transformer station's Microcomputer Protection and complex automatic system, improved reliability and the fail safe of power supply unit.But the closing coil in closing circuit of circuit breaker or easily aging or due to conduction time process burn out.
At present Circuits System for the easy problem of aging or easy burn-out of closing coil, is generally corresponding closing coil protector to be set or series connection time-delay dynamic circuit breaker switch or contact on closing circuit on the closing circuit of circuit breaker.When the closing coil protector can the switch in circuit breaker breaks down, cut off the energising of closing coil with the protection closing coil.Cut-off breaker closing circuit (namely cutting off the energising of closing coil) in setting-up time after on closing circuit, series connection time-delay break contact can send at the closing pulse of circuit breaker can not crossed long-time energising and burn out with the protection closing coil.
Above dual mode has guaranteed all that when closing circuit of circuit breaker breaks down closing coil can be not damaged, but can not guarantee the combined floodgate success rate of circuit breaker.Be connected with important load (as power circuits such as government's office, hospital and important research laboratories) as this circuit breaker, can incur loss through delay the timely power transmission of responsible consumer, have influence on normal social production life.Therefore to also to fully ensure the combined floodgate success rate of circuit breaker on the safe and reliable basis that guarantees closing circuit of circuit breaker, the utilance of grid equipment is provided.
Therefore, be necessary to provide a kind of closing circuit of circuit breaker protective device and corresponding closing circuit of circuit breaker, to solve the existing problem of prior art.
The utility model content
The technical problems to be solved in the utility model is, can not guarantee the technical problem of the combined floodgate success rate of circuit breaker for the closing circuit of circuit breaker of prior art; Provide on a kind of safe and reliable basis guaranteeing closing circuit of circuit breaker, also ensured closing circuit of circuit breaker protective device and the corresponding closing circuit of circuit breaker of the combined floodgate success rate of circuit breaker.
For addressing the above problem, the technical scheme that the utility model provides is as follows:
The utility model relates to a kind of closing circuit of circuit breaker protective device, is arranged in corresponding closing circuit of circuit breaker, and described closing circuit of circuit breaker comprises main closing circuit, and it comprises:
Standby closing circuit is used for connecting described closing circuit of circuit breaker when described main closing circuit breaks down;
Handover module is used for starting described standby closing circuit when described main closing circuit breaks down; And
Alarm module is used for sending alarm signal when described main closing circuit breaks down;
Described handover module respectively with described standby closing circuit be connected main closing circuit and be connected, described alarm module is connected with described standby closing circuit.
In closing circuit of circuit breaker protective device described in the utility model, described closing circuit of circuit breaker protective device also comprises:
Lock modules is used for when described standby closing circuit normal operation, with described main closing circuit locking, when described main closing circuit normal operation, with described standby closing circuit locking;
Described lock modules respectively with described standby closing circuit be connected main closing circuit and be connected.
In closing circuit of circuit breaker protective device described in the utility model, the dead electricity of the main closing coil of main closing circuit as described, the closing circuit of circuit breaker of described standby closing circuit is connected, described main closing circuit locking.
In closing circuit of circuit breaker protective device described in the utility model, the dead electricity time of the main closing coil of main closing circuit reaches 2 seconds as described, and described standby closing circuit is connected, described main closing circuit locking.
In closing circuit of circuit breaker protective device described in the utility model, described short-circuiting device closing circuit protective device also comprises:
Reseting module is used for described handover module is resetted, and described closing circuit of circuit breaker is connected by described main closing circuit;
Described reseting module is connected with described handover module.
The utility model also relates to a kind of closing circuit of circuit breaker, and it comprises:
Main closing circuit, and
The closing circuit of circuit breaker protective device comprises:
Standby closing circuit is used for connecting described closing circuit of circuit breaker when described main closing circuit breaks down;
Handover module is used for starting described standby closing circuit when described main closing circuit breaks down; And
Alarm module is used for sending alarm signal when described main closing circuit breaks down;
Described handover module respectively with described standby closing circuit be connected main closing circuit and be connected, described alarm module is connected with described standby closing circuit.
In closing circuit of circuit breaker described in the utility model, described closing circuit of circuit breaker protective device also comprises:
Lock modules is used for when described standby closing circuit normal operation, with described main closing circuit locking, when described main closing circuit normal operation, with described standby closing circuit locking;
Described lock modules respectively with described standby closing circuit be connected main closing circuit and be connected.
In closing circuit of circuit breaker described in the utility model, the dead electricity of the main closing coil of main closing circuit as described, the closing circuit of circuit breaker of described standby closing circuit is connected, described main closing circuit locking.
In closing circuit of circuit breaker described in the utility model, the dead electricity time of the main closing coil of main closing circuit reaches 2 seconds as described, and described standby closing circuit is connected, described main closing circuit locking.
In closing circuit of circuit breaker described in the utility model, described short-circuiting device closing circuit protective device also comprises:
Reseting module is used for described handover module is resetted, and described closing circuit of circuit breaker is connected by described main closing circuit;
Described reseting module is connected with described handover module.
Implement closing circuit of circuit breaker protective device of the present utility model and corresponding closing circuit of circuit breaker; has following beneficial effect: on the safe and reliable basis that guarantees closing circuit of circuit breaker; also ensure the combined floodgate success rate of circuit breaker, avoided existing closing circuit of circuit breaker can not guarantee the technical problem of the combined floodgate success rate of circuit breaker.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in accompanying drawing:
Fig. 1 is the structured flowchart of the preferred embodiment of closing circuit of circuit breaker of the present utility model;
Fig. 2 is the concrete structure schematic diagram of the preferred embodiment of closing circuit of circuit breaker of the present utility model;
Wherein, description of reference numerals is as follows:
11, main closing circuit;
12, closing circuit of circuit breaker protective device;
121, standby closing circuit;
122, handover module;
123, alarm module;
124, reseting module;
125, lock modules.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Please refer to Fig. 1, Fig. 1 is the structured flowchart of the preferred embodiment of closing circuit of circuit breaker of the present utility model.This closing circuit of circuit breaker comprises main closing circuit 11 and closing circuit of circuit breaker protective device 12, and this closing circuit of circuit breaker protective device 12 comprises standby closing circuit 121, handover module 122, alarm module 123, reseting module 124 and lock modules 125.Main closing circuit 11 is used for connecting closing circuit of circuit breaker under normal condition; Standby closing circuit 121 is used for connecting closing circuit of circuit breaker when main closing circuit 11 breaks down; Handover module 122 is used for starting standby closing circuit 121 when main closing circuit 11 breaks down; Alarm module 123 is used for sending alarm signal when main closing circuit 11 breaks down; Reseting module 124 is used for according to technical staff's operation, handover module 122 being resetted, and makes closing circuit of circuit breaker pass through main closing circuit 11 and connects; Lock modules 125 is used for when standby closing circuit 121 normal operation, with main closing circuit 11 lockings, when main closing circuit 11 normal operation, with standby closing circuit 121 lockings.Handover module 122 respectively with standby closing circuit 121 be connected closing circuit 11 and be connected, alarm module 123 is connected with standby closing circuit 121, reseting module 124 is connected with handover module 122, lock modules 125 also respectively with standby closing circuit 121 be connected closing circuit 11 and be connected.
During closing circuit of circuit breaker work of the present utility model, under the state of normal operation, connect closing circuit of circuit breaker by main closing circuit 11, at this moment lock modules 125 with standby closing circuit 121 lockings, is avoided the misoperation of standby closing circuit 121.Break down (as having auxiliary switch or contact bite not closed in the main Burnout of Closing Coil of main closing circuit 11 or main closing circuit 11) as main closing circuit 11, handover module 122 detects the fault (dead electricity) of main closing circuit 11, start standby closing circuit 121, at this moment connect closing circuit of circuit breaker by standby closing circuit 121, lock modules 125 is avoided the misoperation of main closing circuit 11 with main closing circuit 11 lockings.Simultaneously alarm module 123 sends alarm signal, so that the technical staff in time pinpoints the problems and processes rapidly the fault of main closing circuit 11.After the technical staff is complete with the troubleshooting of main closing circuit 11, can handover module 122 be resetted by reseting module 124, make closing circuit of circuit breaker pass through main closing circuit 11 and connect.
Closing circuit of circuit breaker of the present utility model is provided with two closing circuits, the make regular check on maintenance of compounding technique personnel to equipment, the possibility that two closing circuits break down simultaneously is extremely low, the switch between master and slave of two closing circuits, effectively guarantee the fail safe that the standby closing coil of the main closing coil of main closing circuit 11 and standby closing circuit 121 uses, also ensured simultaneously the combined floodgate success rate of circuit breaker.
Describe the specific works principle of closing circuit of circuit breaker of the present utility model in detail below by Fig. 2, Fig. 2 is the concrete structure schematic diagram of the preferred embodiment of closing circuit of circuit breaker of the present utility model.This closing circuit of circuit breaker comprises: main closing circuit 11 and closing circuit of circuit breaker protective device 12, this closing circuit of circuit breaker protective device 12 comprises standby closing circuit 121, handover module 122, alarm module 123, reseting module 124 and lock modules 125.wherein 8D is the input power switch, 11-52C is a deciliter control switch, 43LR is the selector switch of a distant place/on the spot, 52Y is anti-jump relay and contact thereof, 52a/1, 52b/1, 52b/2 is the relay auxiliary switch, R1 is resistance, 88M is D.C. contactor, 49MX, 50MX, 52MX is auxiliary relay and contact thereof, 50T is time-delay relay and contact thereof, 51MX is signal relay and contact thereof, 11C is reset button, 33HBX is the energy storage relay contact, 52C is main closing coil, 53C is standby closing coil, 63GLX is air pressure blocking relay contact.
During closing circuit of circuit breaker work of the present utility model, under the state of normal operation, there is deciliter control switch 11-52C to connect closing circuit of circuit breaker, at this moment after auxiliary relay 50MX energising, the contact of the auxiliary relay 50MX by lock modules 125 makes handover module 122 not switch (being that the contact of time-delay relay 50T is for disconnecting), with standby closing circuit 121 lockings, and main closing circuit 11 is connected, and by the excitation actuating of main closing coil 52C, circuit breaker is closed.
When the main closing coil 52C of main closing circuit 11 burn or main closing circuit 11 in relay auxiliary switch 52b/1 bite not closed, auxiliary relay 50MX dead electricity disconnects closing circuit of circuit breaker, at this moment the closing of contact of the auxiliary relay 50MX of lock modules 125, on-delay relay 50T, the contact 50T of time-delay relay 50T is closed after time-delay in 2 seconds, be connection signal relay 51MX and standby closing circuit 121, use the standby closing coil 53C excitation of standby closing circuit 121, thereby circuit breaker is closed, simultaneously with main closing circuit 11 lockings.
Simultaneously, when standby closing circuit 121 is started working (Loss of power failure appears in main closing circuit 11), alarm module 123 can send alarm signal, so that the technical staff in time pinpoints the problems and processes rapidly the fault of main closing circuit 11.After the technical staff is complete with the troubleshooting of main closing circuit 11, can handover module 122 be resetted by reseting module 124, make closing circuit of circuit breaker pass through main closing circuit 11 and connect.
The closing time of the main closing circuit 11 of closing circuit of circuit breaker of the present utility model is roughly 150ms to 250ms, so the delay time that handover module 122 can use 2 seconds judges fully whether main closing circuit 11 breaks down.The lasting energising of the main closing coil 52C of main closing circuit 11 can not burnt (experimental results show that the closing coil charging of closing circuit is over beginning carbonization after 5 seconds) 2 seconds in theory simultaneously.After standby closing circuit 121 closes circuit breaker, main closing coil 52C is by relay auxiliary switch 52b/1 outage, standby closing coil 53C when ensureing the normal combined floodgate of circuit breaker, has guaranteed that also main closing coil 52C can not burnt like this by relay auxiliary switch 52b/2 outage.Delay time can be according to user's needs or is specifically arranged, and the length of this delay time does not limit protection range of the present utility model.
Closing circuit of circuit breaker is realized the mutual switching of main closing circuit 11 and standby closing circuit 121 by handover module 122, and passes through lock modules 125 with standby closing circuit 121 lockings when main closing circuit 11 is connected; When main closing circuit 11 breaks down, connect standby closing circuit 121 after time-delay, and by lock modules 125 with main closing circuit 11 lockings.
The below is a series of experimental data for closing circuit of circuit breaker of the present utility model:
In full decide voltage and low-voltage test: test, and apply lower than 80%, test higher than 30% control loop rated voltage under the rated voltage environment of ± 220V.But main closing coil 52C regular event, when main closing coil 52C breaks down, but standby closing coil 53C regular event.
Main closing coil bite test: with auxiliary material, the armature of main closing coil 52C is fixed and made its akinesia, impose the rated voltage test of closing a floodgate.Akinesia after main closing coil 52C energising, standby closing coil 53C action after the 2s time-delay, relay auxiliary switch 52b/1 disconnects, and avoids main closing coil 52C energising.
Therefore closing circuit of circuit breaker of the present utility model can effectively improve the fault of most of electric loops such as virtual connection, relay auxiliary switch (contact) bite and the main closing coil 52C of main closing circuit 11 be aging.Only need to increase one group of auxiliary contact newly in existing closing circuit of circuit breaker can realize closing circuit of circuit breaker of the present utility model simultaneously; the improvement cost of each circuit breaker is no more than 800 yuan (comprising standby closing coil 53C, relay, auxiliary switch and wire), compares with the market unit price of 1000 yuan of left and right of existing closing coil protector to have more economy.
Closing circuit of circuit breaker of the present utility model all can be compatible for the circuit breaker of 10kV and above electric pressure, especially for the circuit breaker of ultra-high voltage transformer station.Greatly improved the combined floodgate success rate of circuit breaker.In existing ultra-high voltage transformer station, all primary cut-outs all adopt the design of single closing coil, and this has brought hidden danger for the safe and stable operation of extra-high voltage grid, adopts closing circuit of circuit breaker of the present utility model can effectively improve this present situation.
Closing circuit of circuit breaker protective device of the present utility model and corresponding closing circuit of circuit breaker are on the safe and reliable basis that guarantees closing circuit of circuit breaker; also ensure the combined floodgate success rate of circuit breaker, avoided existing closing circuit of circuit breaker can not guarantee the technical problem of the combined floodgate success rate of circuit breaker.
The above is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present utility model.
Claims (10)
1. a closing circuit of circuit breaker protective device, be arranged in corresponding closing circuit of circuit breaker, and described closing circuit of circuit breaker comprises main closing circuit, it is characterized in that, comprising:
Standby closing circuit is used for connecting described closing circuit of circuit breaker when described main closing circuit breaks down;
Handover module is used for starting described standby closing circuit when described main closing circuit breaks down; And
Alarm module is used for sending alarm signal when described main closing circuit breaks down;
Described handover module respectively with described standby closing circuit be connected main closing circuit and be connected, described alarm module is connected with described standby closing circuit.
2. closing circuit of circuit breaker protective device according to claim 1, is characterized in that, described closing circuit of circuit breaker protective device also comprises:
Lock modules is used for when described standby closing circuit normal operation, with described main closing circuit locking, when described main closing circuit normal operation, with described standby closing circuit locking;
Described lock modules respectively with described standby closing circuit be connected main closing circuit and be connected.
3. closing circuit of circuit breaker protective device according to claim 1, is characterized in that, the dead electricity of the main closing coil of main closing circuit as described, and the closing circuit of circuit breaker of described standby closing circuit is connected, described main closing circuit locking.
4. closing circuit of circuit breaker protective device according to claim 3, is characterized in that, the dead electricity time of the main closing coil of main closing circuit reaches 2 seconds as described, and described standby closing circuit is connected, described main closing circuit locking.
5. closing circuit of circuit breaker protective device according to claim 1, is characterized in that, described short-circuiting device closing circuit protective device also comprises:
Reseting module is used for described handover module is resetted, and described closing circuit of circuit breaker is connected by described main closing circuit;
Described reseting module is connected with described handover module.
6. a closing circuit of circuit breaker, is characterized in that, comprising:
Main closing circuit, and
The closing circuit of circuit breaker protective device comprises:
Standby closing circuit is used for connecting described closing circuit of circuit breaker when described main closing circuit breaks down;
Handover module is used for starting described standby closing circuit when described main closing circuit breaks down; And
Alarm module is used for sending alarm signal when described main closing circuit breaks down;
Described handover module respectively with described standby closing circuit be connected main closing circuit and be connected, described alarm module is connected with described standby closing circuit.
7. closing circuit of circuit breaker according to claim 6, is characterized in that, described closing circuit of circuit breaker protective device also comprises:
Lock modules is used for when described standby closing circuit normal operation, with described main closing circuit locking, when described main closing circuit normal operation, with described standby closing circuit locking;
Described lock modules respectively with described standby closing circuit be connected main closing circuit and be connected.
8. closing circuit of circuit breaker according to claim 6, is characterized in that, the dead electricity of the main closing coil of main closing circuit as described, and the closing circuit of circuit breaker of described standby closing circuit is connected, described main closing circuit locking.
9. closing circuit of circuit breaker according to claim 8, is characterized in that, the dead electricity time of the main closing coil of main closing circuit reaches 2 seconds as described, and described standby closing circuit is connected, described main closing circuit locking.
10. closing circuit of circuit breaker according to claim 6, is characterized in that, described short-circuiting device closing circuit protective device also comprises:
Reseting module is used for described handover module is resetted, and described closing circuit of circuit breaker is connected by described main closing circuit;
Described reseting module is connected with described handover module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220495828 CN202978240U (en) | 2012-09-26 | 2012-09-26 | Breaker closing circuit protecting device and corresponding breaker closing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220495828 CN202978240U (en) | 2012-09-26 | 2012-09-26 | Breaker closing circuit protecting device and corresponding breaker closing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978240U true CN202978240U (en) | 2013-06-05 |
Family
ID=48519267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220495828 Expired - Fee Related CN202978240U (en) | 2012-09-26 | 2012-09-26 | Breaker closing circuit protecting device and corresponding breaker closing circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978240U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218666A (en) * | 2014-09-01 | 2014-12-17 | 国家电网公司 | Automatic throw-in device of backup closing coil for 10kV vacuum breaker |
| CN113284764A (en) * | 2021-04-29 | 2021-08-20 | 国网浙江省电力有限公司湖州供电公司 | Electromagnetic type ac contactor fault self-healing device |
| CN116643481A (en) * | 2023-07-18 | 2023-08-25 | 河南卫华重型机械股份有限公司 | PLC fault switching standby control system for crane |
-
2012
- 2012-09-26 CN CN 201220495828 patent/CN202978240U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218666A (en) * | 2014-09-01 | 2014-12-17 | 国家电网公司 | Automatic throw-in device of backup closing coil for 10kV vacuum breaker |
| CN104218666B (en) * | 2014-09-01 | 2016-08-03 | 国网山东省电力公司枣庄供电公司 | 10kV vacuum circuit breaker standby closing coil automatic throw-in equipment |
| CN113284764A (en) * | 2021-04-29 | 2021-08-20 | 国网浙江省电力有限公司湖州供电公司 | Electromagnetic type ac contactor fault self-healing device |
| CN113284764B (en) * | 2021-04-29 | 2022-09-27 | 国网浙江省电力有限公司湖州供电公司 | Electromagnetic type ac contactor fault self-healing device |
| CN116643481A (en) * | 2023-07-18 | 2023-08-25 | 河南卫华重型机械股份有限公司 | PLC fault switching standby control system for crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20140926 |
|
| EXPY | Termination of patent right or utility model |