CN204835514U - Rebound way is prevented in cooperation suitable for dual operation case - Google Patents
Rebound way is prevented in cooperation suitable for dual operation case Download PDFInfo
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- CN204835514U CN204835514U CN201520548870.2U CN201520548870U CN204835514U CN 204835514 U CN204835514 U CN 204835514U CN 201520548870 U CN201520548870 U CN 201520548870U CN 204835514 U CN204835514 U CN 204835514U
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- 230000009977 dual effect Effects 0.000 title claims abstract description 20
- 230000009471 action Effects 0.000 abstract description 9
- 230000009191 jumping Effects 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 244000145845 chattering Species 0.000 description 1
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Abstract
The utility model provides a rebound way is prevented in cooperation suitable for dual operation case. Its tripping operation that includes combined floodgate control switch KK, a cover trip protection export contact BCJ, the protection of B cover exports contact BCJ', prevents jumping relay coil TBIJ, normally closed contact DL, trip coil TC, wherein: the tripping operation export contact BCJ' of combined floodgate control switch KK, a cover trip protection export contact BCJ and the protection of B cover is parallelly connected back each other, more in proper order with prevent jumping relay coil TBIJ, NO -contact DL and trip coil TC series connection. The utility model provides a rebound way is prevented in cooperation suitable for dual operation case has solved the circuit breaker body does not have the rebound of preventing way to the matching problem. That prevents the rebound way during configuration dual operation case makes when the protection device who is chooseed for use the control box of preventing the rebound way to correspond withdraws from the operation, or this protection device trouble is during action export signal, and the electric protection device that continues prevents that it can normally exert to jump the function.
Description
Technical field
The utility model belongs to electric power power transmission and transformation resist technology field, particularly relates to a kind of cooperation anti-jump loop being applicable to dual operation case.
Background technology
In the work of electric power system, prevent switch from jumping very important, anti-jump loop is also the emphasis of the annual test of relaying protection department and examination always.The concrete effect of anti-jump loop is: prevent because closing by hand control switch or automatic reclosing contact do not return, and breaker closing is on out of order circuit, thus causes the jumping repeatedly of fuser belt short-circuit current to close phenomenon generation.If Multiple hop occurs circuit breaker, circuit breaker breaking capacity will be caused to decline, even cause an explosion accident.
The anti-jump loop of now conventional dual operation case as shown in Figure 1; under normal circumstances; (number in the figure is 1 to control switch KK; lower with) or auto reclosing switch ZJ (2) close a floodgate after return; if now circuit has fault, protective relaying device action, contact BCJ (3) closes; trip(ping) circuit (T) is connected, makes circuit breaker trip.
And do not return when shutting-brake control K switch K (1) or auto reclosing switch ZJ (2) closes a floodgate, now closing circuit (H) is always charged.If meanwhile circuit has fault to occur, protective relaying device action.In trip(ping) circuit (T), contact BCJ closes (3), trip(ping) circuit (T) is connected, makes circuit breaker trip, and anti-trip relay TBIJ (4) also starts by tripping current simultaneously.In closing circuit (H), its normally opened contact TBJ1 (5) connects, relay TBUJ (6) self-sustaining, and meanwhile normally-closed contact TBJ2 (7) disconnects closing circuit (H).Because the self-retaining function of relay TBUJ (6), closing circuit (H) can be cut off, again can not close a floodgate, thus achieve anti-bouncing function.
At present, the 220kV route protection of some 220kV transformer station starts transformation, and two cover 220kV line protective devices original in standing all are upgraded, and have changed original control box.In transformation process, only change protective device, do not change the old-fashioned circuit breaker of corresponding line, and the control box of protective device public a set ofly changes two cover control box into by original.Although this time reforming mode saves interruption duration and improvement expenses, the anti-jump loop matching problem of two cover control box is also left over lower a series of problem.
After protective device transformation, original single operation case is become dual operation case, and one should have been only had according to company relevant regulations closing circuit (H).If there be A, B two to overlap protection at present, when adopting the closing circuit (H) in A cover protection control box, the anti-jump loop (F) namely in employing A cover protection control box.B cover protection closing circuit (H) need not; although the BCJ ˊ of i.e. B cover protection exports action; TBIJ in trip(ping) circuit (T) starts, but all non-place in circuit of closing circuit TBJ relay, also lost efficacy so B overlaps anti-jump loop (F) corresponding in control box.
Under this kind of wiring condition, if A overlaps A when protecting out of service or line fault overlap relay fail, even if now B cover protection BCJ ˊ outlet action, because it does not possess anti-bouncing function, still circuit breaker chattering can be there is.
Summary of the invention
In order to solve the problem, the purpose of this utility model is to provide a kind of cooperation anti-jump loop being applicable to dual operation case.
In order to achieve the above object, the cooperation anti-jump loop of what the utility model provided be applicable to dual operation case comprises: shutting-brake control K switch K, A overlap the trip outlet contact BCJ ' of trip protection outlet junctions BCJ, B cover protection, anti-trip relay coil TBIJ, normally closed contact DL, breaking coil TC; Wherein: shutting-brake control K switch K, A overlap the trip outlet contact BCJ ' of trip protection outlet junctions BCJ and B cover protection parallel with one another after, then to be connected in series with anti-trip relay coil TBIJ, normal opened contact DL and breaking coil TC successively.
The cooperation anti-jump loop of what the utility model provided be applicable to dual operation case solves breaker body without anti-jump loop; and the matching problem of anti-jump loop when configuring dual operation case. make when the protective device that the control box of selected anti-jump loop is corresponding is out of service; or this protective device fault do not have action export signal time, the anti-bouncing function of protective relaying device can normally play.
Accompanying drawing explanation
Fig. 1 is the anti-jump loop winding diagram of dual operation case in prior art;
The cooperation anti-jump loop winding diagram being applicable to dual operation case that Fig. 2 provides for the utility model;
Fig. 3 is that dual operation case and single anti-jump loop coordinate logic diagram;
Embodiment
Below in conjunction with the drawings and specific embodiments, the cooperation anti-jump loop being applicable to dual operation case that the utility model provides is described in detail.
The cooperation anti-jump loop of what the utility model provided be applicable to dual operation case is the trip(ping) circuit (T) of B being overlapped trip protection outlet junctions BCJ ˊ (8) signal access A cover protection control box, and it is parallel with one another that trip outlet contact BCJ ' (8) and A by the protection of B cover overlap trip protection outlet junctions BCJ (3); Like this, when A cover protects out of service or line fault, A overlaps relay fail, then B overlaps protection exit action.A overlaps TBIJ (4) in trip protection loop (T) and starts; in A cover protection closing circuit (H); its normally opened contact TBJ1 (5) connects; normally-closed contact TBJ2 (7) disconnects; and TBUJ (6) self-sustaining, successfully achieves anti-bouncing function thus.
As shown in Figure 2, the described anti-trip(ping) circuit being applicable to the cooperation anti-jump loop of dual operation case comprises: shutting-brake control K switch K (1), A overlap trip outlet contact BCJ ' (8), anti-trip relay coil TBIJ (4), normally closed contact DL (9), the breaking coil TC (10) of trip protection outlet junctions BCJ (3), the protection of B cover; Wherein: shutting-brake control K switch K (1), A overlap trip outlet contact BCJ ' (8) that trip protection outlet junctions BCJ (3) and B cover protect parallel with one another after, then to be connected in series with anti-trip relay coil TBIJ (4), normal opened contact DL (9) and breaking coil TC (10) successively.
This cooperation anti-jump loop operation principle: the trip(ping) circuit (T) of the BCJ ˊ signal access A cover protection control box that B cover is protected, A overlaps relay fail when A cover protects out of service or line fault, then B overlaps protection exit action.A overlaps TBIJ (4) in trip protection loop (T) and starts; in A cover protection closing circuit (H); its normally opened contact TBJ1 (5) connects; normally-closed contact TBJ2 (7) disconnects; and TBUJ (6) self-sustaining, successfully achieves anti-bouncing function thus.Its principle as shown in Figure 3.
According to logic diagram above, we can determine wiring condition, introduce the hardwire that B overlaps protection act outlet BCJ ˊ, thus add the communication anti-jump loop of B cover protection in the control box of A cover protection.For the trip(ping) circuit (T) of two cover protection; two cover protection act outlets are relations of "or"; so go up in A trip protection loop (T) and connect the outlet actuating signal that B overlaps protection, the action trip condition of relaying protection is not affected.
Claims (1)
1. be applicable to a cooperation anti-jump loop for dual operation case, it is characterized in that: the described cooperation anti-jump loop being applicable to dual operation case comprises: the trip outlet contact BCJ ' of shutting-brake control K switch K, A cover trip protection outlet junctions BCJ, B cover protection, anti-trip relay coil TBIJ, normally closed contact DL, breaking coil TC; Wherein: shutting-brake control K switch K, A overlap the trip outlet contact BCJ ' of trip protection outlet junctions BCJ and B cover protection parallel with one another after, then to be connected in series with anti-trip relay coil TBIJ, normal opened contact DL and breaking coil TC successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520548870.2U CN204835514U (en) | 2015-07-24 | 2015-07-24 | Rebound way is prevented in cooperation suitable for dual operation case |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520548870.2U CN204835514U (en) | 2015-07-24 | 2015-07-24 | Rebound way is prevented in cooperation suitable for dual operation case |
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| CN204835514U true CN204835514U (en) | 2015-12-02 |
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| CN201520548870.2U Active CN204835514U (en) | 2015-07-24 | 2015-07-24 | Rebound way is prevented in cooperation suitable for dual operation case |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526472A (en) * | 2016-11-18 | 2017-03-22 | 国家电网公司 | Breaker integrated test apparatus |
| CN108306255A (en) * | 2018-03-20 | 2018-07-20 | 国网黑龙江省电力有限公司大兴安岭供电公司 | Manipulation type protects circuit and guard method temporarily |
| CN113872330A (en) * | 2021-11-05 | 2021-12-31 | 国网宁夏电力有限公司建设分公司 | Double-set intelligent terminal starting control loop of transformer substation circuit breaker |
-
2015
- 2015-07-24 CN CN201520548870.2U patent/CN204835514U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526472A (en) * | 2016-11-18 | 2017-03-22 | 国家电网公司 | Breaker integrated test apparatus |
| CN108306255A (en) * | 2018-03-20 | 2018-07-20 | 国网黑龙江省电力有限公司大兴安岭供电公司 | Manipulation type protects circuit and guard method temporarily |
| CN108306255B (en) * | 2018-03-20 | 2024-01-26 | 国网黑龙江省电力有限公司大兴安岭供电公司 | Operation type temporary protection circuit and protection method |
| CN113872330A (en) * | 2021-11-05 | 2021-12-31 | 国网宁夏电力有限公司建设分公司 | Double-set intelligent terminal starting control loop of transformer substation circuit breaker |
| CN113872330B (en) * | 2021-11-05 | 2023-03-14 | 国网宁夏电力有限公司建设分公司 | Double-set intelligent terminal starting control loop of transformer substation circuit breaker |
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