CN203617676U - Burning loss prevention detection and protective device used for circuit breaker closing coil - Google Patents
Burning loss prevention detection and protective device used for circuit breaker closing coil Download PDFInfo
- Publication number
- CN203617676U CN203617676U CN201320712167.1U CN201320712167U CN203617676U CN 203617676 U CN203617676 U CN 203617676U CN 201320712167 U CN201320712167 U CN 201320712167U CN 203617676 U CN203617676 U CN 203617676U
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- closing
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- breaker
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- Expired - Fee Related
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- 238000001514 detection method Methods 0.000 title claims abstract description 11
- 230000001681 protective effect Effects 0.000 title claims abstract description 10
- 230000002265 prevention Effects 0.000 title abstract 2
- 238000012544 monitoring process Methods 0.000 claims description 9
- 230000001012 protector Effects 0.000 claims description 9
- 239000000523 sample Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000005855 radiation Effects 0.000 description 4
- 230000005284 excitation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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Abstract
The utility model provides a burning loss prevention detection and protective device used for a circuit breaker closing coil. The device comprises a circuit breaker closing button SA, a normally-close auxiliary contact point DL, a closing coil HQ and a direct current contactor. The device is characterized in that a closing loop is connected in series with a time-delay disconnected normally-close contact point of the direct current contactor; a current starting intermediate relay KM which is connected with the circuit breaker closing button SA is successively connected in series with a normally-close contact point of a closing-loop direct-current contactor TB, the circuit-breaker normally-close auxiliary contact point DL and the closing coil HQ; the direct-current contactor TB is connected with a time relay KT; the closing loop is provided with a coil protection device; the coil protection device comprises a closing circuit contact motion detection apparatus, a processor and an execution switch KZ; a normally-closed contact point of the execution switch KZ is connected in series to the closing loop. By using the device of the utility model, wiring is simple; maintenance is convenient; the device is safe and reliable; an investment is small and an effect is achieved quickly; operation time is reduced; a coil service life is prolonged and an operation success rate is increased.
Description
Technical field
The utility model belongs to relay auxiliary protection equipment technical field, and particularly a kind of breaker closing coil detects protective device with overfiring-proof.
Background technology
At present, in high-voltage switch gear debugging and telemechanical operating process, one of secondary circuit failure that frequency is maximum is exactly burning of closing coil, and it will make power equipment lose remote control, have a strong impact on power supply reliability.Breaker closing action due to closing coil in short-term charged adhesive electromagnet realize, feed motion starts rear loop in self-sustaining state, after move, its loop by with the auxiliary switch cut-out of mechanism's interlock; If there is the problems such as mechanism's bite, auxiliary switch can not normally switch when combined floodgate, auxiliary contact can not be opened, and closing circuit is by self-sustaining, and closing coil will be charged for a long time.All closing coils are all by charged design in short-term, and long-term charged inevitable being burnt, burns in process and generally there will be turn-to-turn short circuit, and electric current increases, and then burns operation panel.Once there is bite in power circuit breaker therefore, will inevitably burn closing coil and operation panel, have a strong impact on power supply.As spare part lacks, interruption duration will be longer.Tracing it to its cause is exactly, and in high-voltage switch gear debugging and telemechanical operating process, and closing circuit is when abnormal, fails to dispel the heat the time fully to closing coil due to combined floodgate continuously, is easy to cause Burnout of Closing Coil.Application number: 201220489244.7 Chinese patent discloses a kind of primary cut-out closing coil and prevented that burning automatic safety device comprises circuit breaker, auxiliary relay, microcomputer signal controller; Auxiliary relay normally closed contact is series at the power switch loop of circuit breaker, and the auxiliary normal opened contact of circuit breaker is connected to microcomputer signal controller switching value input point, and microcomputer signal controller switching value output point connects auxiliary relay coil; In microcomputer signal controller, time-delay relay is set.The function that described primary cut-out closing coil is anti-burns automatic safety device and be provided with delay protection; but for the circuit of frequent closing operation; particularly when contact burning, adhesion; each closing operation cycle is the cycle of a delay cut-off; therefore periodically long-time lower coil will shorten useful life greatly, exists potential safety hazard for the design of excessive dependence delay circuit.
Utility model content
The utility model, in order to address the above problem, provides a kind of breaker closing coil overfiring-proof of simple in structure, practical operation mechanism for high voltage switch to detect protective device.
For achieving the above object, the technical solution adopted in the utility model is: a kind of breaker closing coil detects protective device with overfiring-proof, comprise breaker closing button SA, normally closed auxiliary contact DL, closing coil HQ and D.C. contactor, time delay at closing circuit series direct current contactor disconnects normally closed contact, the current start auxiliary relay KM being connected with breaker closing button SA successively with closing circuit D.C. contactor normally closed contact TB, the normally closed auxiliary contact DL of circuit breaker and closing coil HQ series connection, D.C. contactor TB is connected with time relay KT, on described closing circuit, coil protector is set, described coil protector comprises combined floodgate circuit contact action detection device, processor and execution K switch Z, the normally-closed contact of described execution K switch Z seals in described closing circuit.
Described combined floodgate circuit contact action detection device is camera probe.
Described processor is connected with status monitoring indicator light and/or warning device.
Because the utility model disconnects normally closed contact in closing circuit series connection time delay, can be in the situation that switching signal disappear, realize time delay by time relay KT and auxiliary relay KM and disconnect closing operation loop, make closing coil loss of excitation, avoid operating process closing coil to burn out by exciting current for a long time, particularly the utility model arranges described coil protector, comprise combined floodgate circuit contact action detection device, processor and execution K switch Z, the normally-closed contact of described execution K switch Z seals in described closing circuit, normal time, do not affect normal closing operation, in the time that contact is improper, as contact adhesion, when contact distortion, cut off closing circuit by described execution K switch Z, while avoiding switching signal, cause continuously closing coil long charged, avoid described heat radiation coil there is no the enough heat radiation time and continue periodic delay cut-off, shorten closing coil useful life, reduce electric power safety, described processor is connected with status monitoring indicator light and/or warning device, in the time that circuit is normal, status monitoring indicator light shows green light normal information, in the time having fault, status monitoring indicator light shows red light fault-signal, easy access location, described warning device is convenient to remind operating personnel to process in time the scene of the accident, particularly better effects if in the time that described warning device is provided with remote alarm function.The utility model wiring is simple, is convenient to safeguard, safe and reliable, and small investment, instant effect, and can reduce the operating time, improve and are operable to power at extension coil useful life.Drop into less relay and microcircuit card, guaranteed to change the useful life of expensive switching mechanism, also avoided artificial and waste of material and power failure impact that more emat coil causes, there is higher economical and practical value, and labour intensity is low, intelligent good, be convenient to generally promote the use of.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is circuit diagram of the present utility model;
Fig. 2 is the structural representation of the utility model coil protector.
Embodiment
As Fig. 1, shown in Fig. 2, a kind of breaker closing coil detects protective device with overfiring-proof, comprise breaker closing button SA, normally closed auxiliary contact DL, closing coil HQ and D.C. contactor, time delay at closing circuit series direct current contactor disconnects normally closed contact, the current start auxiliary relay KM being connected with breaker closing button SA successively with closing circuit D.C. contactor normally closed contact TB, the normally closed auxiliary contact DL of circuit breaker and closing coil HQ series connection, D.C. contactor TB is connected with time relay KT, on described closing circuit, coil protector is set, described coil protector comprises combined floodgate circuit contact action detection device, processor and execution K switch Z, the normally-closed contact of described execution K switch Z seals in described closing circuit.
Described combined floodgate circuit contact action detection device is camera probe.
Described processor is connected with status monitoring indicator light and/or warning device.
Because the utility model disconnects normally closed contact in closing circuit series connection time delay, can be in the situation that switching signal disappear, realize time delay by time relay KT and auxiliary relay KM and disconnect closing operation loop, make closing coil loss of excitation, avoid operating process closing coil to burn out by exciting current for a long time, particularly the utility model arranges described coil protector, comprise combined floodgate circuit contact action detection device, processor and execution K switch Z, the normally-closed contact of described execution K switch Z seals in described closing circuit, normal time, do not affect normal closing operation, in the time that contact is improper, as contact adhesion, when contact distortion, cut off closing circuit by described execution K switch Z, while avoiding switching signal, cause continuously closing coil long charged, avoid described heat radiation coil there is no the enough heat radiation time and continue periodic delay cut-off, shorten closing coil useful life, reduce electric power safety, described processor is connected with status monitoring indicator light and/or warning device, in the time that circuit is normal, status monitoring indicator light shows green light normal information, in the time having fault, status monitoring indicator light shows red light fault-signal, easy access location, described warning device is convenient to remind operating personnel to process in time the scene of the accident, particularly better effects if in the time that described warning device is provided with remote alarm function.The utility model wiring is simple, is convenient to safeguard, safe and reliable, and small investment, instant effect, and can reduce the operating time, improve and are operable to power at extension coil useful life.Drop into less relay and microcircuit card, guaranteed to change the useful life of expensive switching mechanism, also avoided artificial and waste of material and power failure impact that more emat coil causes, there is higher economical and practical value, and labour intensity is low, intelligent good, be convenient to generally promote the use of.
Claims (3)
1. a breaker closing coil detects protective device with overfiring-proof, comprise breaker closing button SA, normally closed auxiliary contact DL, closing coil HQ and D.C. contactor, it is characterized in that: the time delay at closing circuit series direct current contactor disconnects normally closed contact, the current start auxiliary relay KM being connected with breaker closing button SA successively with closing circuit D.C. contactor normally closed contact TB, the normally closed auxiliary contact DL of circuit breaker and closing coil HQ series connection, D.C. contactor TB is connected with time relay KT, on described closing circuit, coil protector is set, described coil protector comprises combined floodgate circuit contact action detection device, processor and execution K switch Z, the normally-closed contact of described execution K switch Z seals in described closing circuit.
2. breaker closing coil detects protective device with overfiring-proof as claimed in claim 1, it is characterized in that: described combined floodgate circuit contact action detection device is camera probe.
3. breaker closing coil detects protective device with overfiring-proof as claimed in claim 1 or 2, it is characterized in that: described processor is connected with status monitoring indicator light and/or warning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320712167.1U CN203617676U (en) | 2013-11-13 | 2013-11-13 | Burning loss prevention detection and protective device used for circuit breaker closing coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320712167.1U CN203617676U (en) | 2013-11-13 | 2013-11-13 | Burning loss prevention detection and protective device used for circuit breaker closing coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203617676U true CN203617676U (en) | 2014-05-28 |
Family
ID=50770299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320712167.1U Expired - Fee Related CN203617676U (en) | 2013-11-13 | 2013-11-13 | Burning loss prevention detection and protective device used for circuit breaker closing coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203617676U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353672A (en) * | 2016-08-19 | 2017-01-25 | 苏州宝化炭黑有限公司 | Judging device for switch malfunction of operating post |
| CN109490688A (en) * | 2018-11-12 | 2019-03-19 | 国网河南省电力公司修武县供电公司 | A kind of auxiliary device of direct current system |
| CN109545633A (en) * | 2018-11-16 | 2019-03-29 | 深圳供电局有限公司 | A kind of permanent-magnet breaker |
| CN110875163A (en) * | 2018-08-30 | 2020-03-10 | 江苏爱斯凯电气有限公司 | Device based on protection intelligence universal circuit breaker closing coil |
-
2013
- 2013-11-13 CN CN201320712167.1U patent/CN203617676U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353672A (en) * | 2016-08-19 | 2017-01-25 | 苏州宝化炭黑有限公司 | Judging device for switch malfunction of operating post |
| CN106353672B (en) * | 2016-08-19 | 2024-02-27 | 苏州宝化炭黑有限公司 | Operation column switch failure judgment device |
| CN110875163A (en) * | 2018-08-30 | 2020-03-10 | 江苏爱斯凯电气有限公司 | Device based on protection intelligence universal circuit breaker closing coil |
| CN109490688A (en) * | 2018-11-12 | 2019-03-19 | 国网河南省电力公司修武县供电公司 | A kind of auxiliary device of direct current system |
| CN109545633A (en) * | 2018-11-16 | 2019-03-29 | 深圳供电局有限公司 | A kind of permanent-magnet breaker |
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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: 20140528 Termination date: 20151113 |
|
| EXPY | Termination of patent right or utility model |