CN203301120U - Burnt-up proof automatic protection device for high voltage circuit breaker opening and closing coil - Google Patents
Burnt-up proof automatic protection device for high voltage circuit breaker opening and closing coil Download PDFInfo
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- CN203301120U CN203301120U CN2013202956504U CN201320295650U CN203301120U CN 203301120 U CN203301120 U CN 203301120U CN 2013202956504 U CN2013202956504 U CN 2013202956504U CN 201320295650 U CN201320295650 U CN 201320295650U CN 203301120 U CN203301120 U CN 203301120U
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- circuit breaker
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- 238000012544 monitoring process Methods 0.000 description 1
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Abstract
The utility model discloses a burnt-up proof automatic protection device of a high voltage circuit breaker opening and closing coil, which solves the problem that the opening and closing coil is burnt up due to overlarge current caused by unknown reasons. The automatic protection device comprises the high voltage circuit breaker opening and closing coil and a high voltage circuit breaker opening and closing coil control power supply, wherein an anode of the high voltage circuit breaker opening and closing coil is connected with the left end of a high impedance signal lamp, the right end of the high impedance signal lamp is connected with the left end of the high voltage circuit breaker opening and closing coil by an auxiliary switch, the right end of the high voltage circuit breaker opening and closing coil is connected with the left end of an opening and closing loop contactor, the right end of the opening and closing loop contactor is connected with a cathode of the high voltage circuit breaker opening and closing coil control power supply, and a closing loop time relay for controlling the opening and closing loop contactor is connected between the right end of the high impedance signal lamp and the cathode of the high voltage circuit breaker opening and closing coil control power supply in parallel. The power supply reliability of the device is improved, and the practical value is high.
Description
Technical field
The utility model relates to a kind of protective device of primary cut-out, particularly a kind of protective device of divide-shut brake coil of primary cut-out.
Background technology
In service in electric power system, primary cut-out is because of maintenance repair test needs or because line fault often will be divided, closing operation, in this process, because the frequent generation of the reason of the unknown divides, closing coil is longer operate time, cause the divide-shut brake coil burnout, when because the breaker open operation coil damages, causing the circuit breaker tripping again, and then overstep tripping will occur, cause the generation of electric grid large area power cut accident, electric equipment even occurs the serious accident such as burn.
Summary of the invention
The utility model provides that a kind of primary cut-out closing coil is anti-burns automatic safety device, has solved the excessive technical problem that causes the divide-shut brake coil burnout of electric current in the divide-shut brake coil that the reason due to the unknown occurs.
the anti-automatic safety device that burns of a kind of primary cut-out closing coil, comprise primary cut-out closing coil and high-voltage circuit-breaker switching on-off coil control power supply, the high-voltage circuit-breaker switching on-off coil is controlled positive source and is connected with the left end of green high resistant signal lamp, the right-hand member of green high resistant signal lamp is connected with the left end of primary cut-out closing coil by auxiliary switch, the right-hand member of primary cut-out closing coil is connected with the left end of closing circuit contactor, the right-hand member of closing circuit contactor is controlled power cathode with the high-voltage circuit-breaker switching on-off coil and is connected, be parallel with the closing by hand button at the two ends of green high resistant signal lamp, right-hand member and high-voltage circuit-breaker switching on-off coil at green high resistant signal lamp are controlled between power cathode the closing circuit time relay that is parallel with control closing circuit contactor, the described closing circuit time relay is the time relay that while being set to charged 3 second, the closing circuit contactor is disconnected.
the anti-automatic safety device that burns of a kind of high-voltage circuit breaker brake cable circle, comprise primary cut-out breaking coil and high-voltage circuit-breaker switching on-off coil control power supply, the high-voltage circuit-breaker switching on-off coil is controlled positive source and is connected with the left end of red high resistant signal lamp, the right-hand member of red high resistant signal lamp is connected with the left end of primary cut-out breaking coil by auxiliary switch, the right-hand member of primary cut-out breaking coil is connected with the left end of sub-gate circuit contactor, the right-hand member of sub-gate circuit contactor is controlled power cathode with the high-voltage circuit-breaker switching on-off coil and is connected, be parallel with the manual brake separating button at the two ends of red high resistant signal lamp, right-hand member and high-voltage circuit-breaker switching on-off coil at red high resistant signal lamp are controlled between power cathode the sub-gate circuit time relay that is parallel with control sub-gate circuit contactor, the described sub-gate circuit time relay is the time relay that while being set to charged 3 second, the sub-gate circuit contactor is disconnected.
The utility model do not affect under normal minute of circuit breaker, the prerequisite of closing function realize to minute, effective protection of closing coil.When circuit breaker divides, closing coil surpassed for 3 seconds, automatic safety device automatic disconnection separating brake or closing circuit, protection separating brake or closing coil conduction time; When the energising of separating brake or closing coil was no more than 3 seconds, separating brake or closing circuit can recover original function, and the utility model has improved the power supply reliability of equipment, has higher practical value.
Description of drawings
Fig. 1 is the anti-structural representation that burns automatic safety device of primary cut-out closing coil of the present utility model;
Fig. 2 is the anti-structural representation that burns automatic safety device of high-voltage circuit breaker brake cable circle of the present utility model.
Embodiment
the anti-automatic safety device that burns of a kind of primary cut-out closing coil, comprise primary cut-out closing coil YC and high-voltage circuit-breaker switching on-off coil control power supply, the high-voltage circuit-breaker switching on-off coil is controlled positive source+KM and is connected with the left end of green high resistant signal lamp HG, the right-hand member of green high resistant signal lamp HG is connected with the left end of primary cut-out closing coil YC by auxiliary switch QF1, the right-hand member of primary cut-out closing coil YC is connected with the left end of closing circuit contactor CJ1, the right-hand member of closing circuit contactor CJ1 is controlled power cathode-KM with the high-voltage circuit-breaker switching on-off coil and is connected, be parallel with closing by hand button SB1 at the two ends of green high resistant signal lamp HG, right-hand member and high-voltage circuit-breaker switching on-off coil at green high resistant signal lamp HG are controlled between power cathode-KM the closing circuit time relay JS1 that is parallel with control closing circuit contactor CJ1, described closing circuit time relay JS1 is the time relay that while being set to charged 3 second, closing circuit contactor CJ1 is disconnected.
can draw under same invention thinking, the anti-automatic safety device that burns of a kind of high-voltage circuit breaker brake cable circle, comprise primary cut-out breaking coil YT and high-voltage circuit-breaker switching on-off coil control power supply, the high-voltage circuit-breaker switching on-off coil is controlled positive source+KM and is connected with the left end of red high resistant signal lamp HR, the right-hand member of red high resistant signal lamp HR is connected with the left end of primary cut-out breaking coil YT by auxiliary switch QF2, the right-hand member of primary cut-out breaking coil YT is connected with the left end of sub-gate circuit contactor CJ2, the right-hand member of sub-gate circuit contactor CJ2 is controlled power cathode-KM with the high-voltage circuit-breaker switching on-off coil and is connected, be parallel with manual brake separating button SB2 at the two ends of red high resistant signal lamp HR, right-hand member and high-voltage circuit-breaker switching on-off coil at red high resistant signal lamp HR are controlled between power cathode-KM the sub-gate circuit time relay JS2 that is parallel with control sub-gate circuit contactor CJ2, described sub-gate circuit time relay JS2 is the time relay that while being set to charged 3 second, sub-gate circuit contactor CJ2 is disconnected.
The automatic safety device of separating brake of the present utility model, closing coil is respectively independently; due to circuit breaker minute, the feed motion time is Millisecond; the setup times relay in the time of charged 3 seconds, can start A.C. contactor when coil, disconnects separating brake or closing circuit.When coil electrify time surpassed for 3 second, time relay action, disconnected separating brake or closing circuit.Under normal circumstances, minute, the automatic safety device of closing coil is failure to actuate, the A.C. contactor normally-closed contact of separating brake or closing circuit only has the electric current of 0.2mA to pass through.
The circuit complete supervision of automatic safety device is undertaken by the LED lamp of high internal resistance, and loop current only has 0.2mA, also can carry out Real Time Monitoring by background computer and Surveillance center's interface.
Claims (1)
1. a primary cut-out closing coil prevents burning automatic safety device, comprise primary cut-out closing coil (YC) and high-voltage circuit-breaker switching on-off coil control power supply, it is characterized in that, high-voltage circuit-breaker switching on-off coil control positive source (+KM) with the left end of green high resistant signal lamp (HG), be connected, the right-hand member of green high resistant signal lamp (HG) is connected with the left end of primary cut-out closing coil (YC) by auxiliary switch (QF1), the right-hand member of primary cut-out closing coil (YC) is connected with the left end of closing circuit contactor (CJ1), the right-hand member of closing circuit contactor (CJ1) is controlled power cathode with the high-voltage circuit-breaker switching on-off coil and (KM) is connected, be parallel with closing by hand button (SB1) at the two ends of green high resistant signal lamp (HG), right-hand member and high-voltage circuit-breaker switching on-off coil control power cathode at green high resistant signal lamp (HG) (are parallel with the closing circuit time relay (JS1) of controlling closing circuit contactor (CJ1) KM), the described closing circuit time relay (JS1) is the time relay that while being set to charged 3 second, closing circuit contactor (CJ1) is disconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202956504U CN203301120U (en) | 2013-05-28 | 2013-05-28 | Burnt-up proof automatic protection device for high voltage circuit breaker opening and closing coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202956504U CN203301120U (en) | 2013-05-28 | 2013-05-28 | Burnt-up proof automatic protection device for high voltage circuit breaker opening and closing coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203301120U true CN203301120U (en) | 2013-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202956504U Expired - Fee Related CN203301120U (en) | 2013-05-28 | 2013-05-28 | Burnt-up proof automatic protection device for high voltage circuit breaker opening and closing coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203301120U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703331A (en) * | 2014-11-24 | 2016-06-22 | 国网河南省电力公司平顶山供电公司 | Transformer handcart switch closing circuit coil burnout prevention improvement method |
-
2013
- 2013-05-28 CN CN2013202956504U patent/CN203301120U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703331A (en) * | 2014-11-24 | 2016-06-22 | 国网河南省电力公司平顶山供电公司 | Transformer handcart switch closing circuit coil burnout prevention improvement method |
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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: 20131120 Termination date: 20180528 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |