CN204046139U - There is the station local coordinate frame shunting switch protective device of tripping operation measuring ability - Google Patents
There is the station local coordinate frame shunting switch protective device of tripping operation measuring ability Download PDFInfo
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- CN204046139U CN204046139U CN201420464306.8U CN201420464306U CN204046139U CN 204046139 U CN204046139 U CN 204046139U CN 201420464306 U CN201420464306 U CN 201420464306U CN 204046139 U CN204046139 U CN 204046139U
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- 238000012544 monitoring process Methods 0.000 description 15
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Abstract
The utility model discloses a kind of station local coordinate frame shunting switch protective device with tripping operation measuring ability; comprise shunting switch protective circuit and tripping operation testing circuit; tripping operation testing circuit comprises middle electromagnetic relay and Signal Matching circuit; the coils connected in series access shunting switch protective circuit of middle electromagnetic relay, the switch of middle electromagnetic relay is connected with Signal Matching circuit.The utility model provides tripping operation measuring ability for shunting switch protection, and it is the own fault of circuit breaker or sub-connecting switch of transformer protection act causes that procurator can be facilitated to judge fast to trip, and makes investigation fault convenient and swift.
Description
Technical field
The utility model relates to station local coordinate frame trip protection signal monitoring equipment, is specifically related to a kind of station local coordinate frame shunting switch protective device with tripping operation measuring ability.
Background technology
Station local coordinate frame is one of most important equipment of electricity substation, for providing power supply to equipment such as various motor, control device, protective devices in transformer station.If motor, control device, protective device lose power supply in transformer station, transformer station may be caused all to have a power failure, even cause Large-scale Blackout in Cities.Station local coordinate frame trip protection signal monitoring can Timeliness coverage station local coordinate frame failure condition, accelerates the malfunction elimination processing time, improves electricity substation reliability of operation.Station local coordinate frame protection is usually by main body protection and shunting switch protection structure, the trip signal of the station local coordinate frame main body protection of prior art all accesses background monitoring system, but shunting switch protection does not access background monitoring system, if when shunting switch trip protection loop relay fault causes misoperation, because background monitoring system is not accessed without function for monitoring in shunting switch trip protection loop, alarm free event send background monitoring system, and it is on-the-spot without arc light flashover, the anomalies such as shunting switch dropout, it is that the fault of circuit breaker own or the action of shunting switch protective circuit cause that inspection personnel cannot differentiate tripping operation, extreme difficulties is caused to investigation fault.
Utility model content
The technical problems to be solved in the utility model is to provide and a kind of provides tripping operation measuring ability for shunting switch protection; it is the own fault of circuit breaker or sub-connecting switch of transformer protection act causes that procurator can be facilitated to judge fast to trip, and makes investigation fault conveniently have the station local coordinate frame shunting switch protective device of tripping operation measuring ability.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of station local coordinate frame shunting switch protective device with tripping operation measuring ability; comprise shunting switch protective circuit and tripping operation testing circuit; described tripping operation testing circuit comprises middle electromagnetic relay and Signal Matching circuit; the coils connected in series access shunting switch protective circuit of described middle electromagnetic relay, the switch of described middle electromagnetic relay is connected with Signal Matching circuit.
Preferably, described Signal Matching circuit is that digital quantity is opened into plate.
Preferably, described shunting switch protective circuit comprises arc detector, tripping relay, time-delay relay, circuit breaker trip relay, breaking coil and at least one electromagnetic relay switch, described arc detector, tripping relay, formation DC power supply path is connected in series between the coil of electromagnetic relay switch, the switch of described electromagnetic relay switch, time-delay relay, the coils connected in series of circuit breaker trip relay is connected to form the AC power path of 220V, between the switch of the coils connected in series access circuit breaker trip relay of described middle electromagnetic relay and breaking coil.
The station local coordinate frame shunting switch protective device that the utility model has tripping operation measuring ability has following advantage: the utility model by adding tripping operation testing circuit on the shunting switch protective circuit basis of prior art, tripping operation testing circuit comprises middle electromagnetic relay and Signal Matching circuit, the coils connected in series access shunting switch protective circuit of middle electromagnetic relay, the switch of middle electromagnetic relay is connected with Signal Matching circuit, therefore once tripping operation occurs shunting switch protective circuit, middle electromagnetic relay can by the background monitoring system output tripping operation detection signal of Signal Matching circuit to station local coordinate frame, thus tripping operation measuring ability can be provided for shunting switch protection, it is that the fault of circuit breaker own or the action of shunting switch protective circuit cause that procurator can be facilitated to judge fast to trip, make investigation fault convenient and swift.
Accompanying drawing explanation
Fig. 1 is the circuit principle structure schematic diagram of the utility model embodiment.
Marginal data: 1, middle electromagnetic relay; 2, Signal Matching circuit; 3, arc detector; 4, tripping relay; 5, time-delay relay; 6, circuit breaker trip relay; 7, breaking coil; 8, electromagnetic relay switch.
Embodiment
As shown in Figure 1; the station local coordinate frame shunting switch protective device with tripping operation measuring ability of the present embodiment comprises shunting switch protective circuit and tripping operation testing circuit; tripping operation testing circuit comprises middle electromagnetic relay 1 and Signal Matching circuit 2; the coils connected in series access shunting switch protective circuit of middle electromagnetic relay 1, the switch of middle electromagnetic relay 1 is connected with Signal Matching circuit 2.The present embodiment by adding tripping operation testing circuit on the shunting switch protective circuit basis of prior art, tripping operation testing circuit comprises middle electromagnetic relay 1 and Signal Matching circuit 2, the coils connected in series access shunting switch protective circuit of middle electromagnetic relay 1, the switch of middle electromagnetic relay 1 is connected with Signal Matching circuit 2, therefore once tripping operation occurs shunting switch protective circuit, middle electromagnetic relay 1 can by the background monitoring system output tripping operation detection signal of Signal Matching circuit 2 to station local coordinate frame, thus tripping operation measuring ability can be provided for shunting switch protection, it is that the fault of circuit breaker own or the action of shunting switch protective circuit cause that procurator can be facilitated to judge fast to trip, make investigation fault convenient and swift.
In the present embodiment, Signal Matching circuit 2 is opened into plate for digital quantity, and the concrete model that adopts is that the digital quantity of PS851 is opened into plate, thus can mate with the background monitoring system of station local coordinate frame easily and be connected.Digital quantity is opened plate PS851 and is placed in the ABB control cubicle of the background monitoring system of station local coordinate frame, simultaneously station local coordinate frame machine room to background monitoring system ABB control cubicle between lay control cables, the normal opened contact (contact of switch) of middle electromagnetic relay 1 is introduced in ABB control cubicle, and accessed digital quantity and open input channel into plate PS851, when middle electromagnetic relay 1 action time, digital quantity opens the optocoupler action into plate PS851, thus the trip signal that quick output station is protected with sub-connecting switch of transformer, background monitoring system receives this trip signal, alert event can be demonstrated on monitoring computer.
In the present embodiment, shunting switch protective circuit comprises arc detector 3, tripping relay 4, time-delay relay 5, circuit breaker trip relay 6, breaking coil 7 and two electromagnetic relay switch 8(K13 and K14), arc detector 3, tripping relay 4, be connected in series formation DC power supply path between the coil of electromagnetic relay switch 8 and (be connected to DC+, between DC-), the switch of electromagnetic relay switch 8, time-delay relay 5, the AC power path that the coils connected in series of circuit breaker trip relay 6 is connected to form 220V (is connected to the live wire L of 220V, between zero line N), between the switch of the coils connected in series access circuit breaker trip relay 6 of middle electromagnetic relay 1 and breaking coil 7.When arc detector 3 detects arc light or tripping relay 4 is threaded off, the meeting of electromagnetic relay switch 8 loses excitation, thus closes through time-delay relay 5, makes circuit breaker trip relay 6 action, causes breaking coil 7 to trip.If scene is without anomalies such as obvious arc light flashover, shunting switch dropouts, then inspection personnel often cannot differentiate breaking coil 7 tripping operation is the own fault of circuit breaker or sub-connecting switch of transformer protection act causes, and causes extreme difficulties to investigation fault.Between the switch accessing circuit breaker trip relay 6 due to the coils connected in series of middle electromagnetic relay 1 and breaking coil 7, circuit breaker trip relay 6 action causes middle electromagnetic relay 1 to work, digital quantity is opened and is exported trip signal to background monitoring system into plate PS851, makes inspection personnel can tell the reason of breaking coil 7 tripping operation fast.In the present embodiment, tripping relay 4 comprises S70 and S71 totally two branch roads, therefore the coil being furnished with two electromagnetic relay switchs, 8, electromagnetic relay switch 8 is connected in series with a branch road respectively, is then connected in series between the switch of two electromagnetic relay switchs 8.It should be noted that, the particular circuit configurations etc. adjusting the coil position of electromagnetic relay switch 8, arc detector 3 and tripping relay 4 all may cause the number change of electromagnetic relay switch 8, but its principle is identical with the present embodiment, therefore does not repeat them here.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (3)
1. one kind has the station local coordinate frame shunting switch protective device of tripping operation measuring ability; comprise shunting switch protective circuit; it is characterized in that: also comprise tripping operation testing circuit; described tripping operation testing circuit comprises middle electromagnetic relay (1) and Signal Matching circuit (2); the coils connected in series access shunting switch protective circuit of described middle electromagnetic relay (1), the switch of described middle electromagnetic relay (1) is connected with Signal Matching circuit (2).
2. the station local coordinate frame shunting switch protective device with tripping operation measuring ability according to claim 1, is characterized in that: described Signal Matching circuit (2) is opened into plate for digital quantity.
3. the station local coordinate frame shunting switch protective device with tripping operation measuring ability according to claim 1 and 2, it is characterized in that: described shunting switch protective circuit comprises arc detector (3), tripping relay (4), time-delay relay (5), circuit breaker trip relay (6), breaking coil (7) and at least one electromagnetic relay switch (8), described arc detector (3), tripping relay (4), formation DC power supply path is connected in series between the coil of electromagnetic relay switch (8), the switch of described electromagnetic relay switch (8), time-delay relay (5), the coils connected in series of circuit breaker trip relay (6) is connected to form the AC power path of 220V, between the switch of coils connected in series access circuit breaker trip relay (6) of described middle electromagnetic relay (1) and breaking coil (7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420464306.8U CN204046139U (en) | 2014-08-18 | 2014-08-18 | There is the station local coordinate frame shunting switch protective device of tripping operation measuring ability |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420464306.8U CN204046139U (en) | 2014-08-18 | 2014-08-18 | There is the station local coordinate frame shunting switch protective device of tripping operation measuring ability |
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| CN204046139U true CN204046139U (en) | 2014-12-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202923A (en) * | 2017-05-19 | 2017-09-26 | 国网江西省电力公司电力科学研究院 | A kind of method of automatic identification distribution line transmission test tripping operation |
| CN107437848A (en) * | 2016-09-30 | 2017-12-05 | 熊云慷 | Stand with stand-by power supply in monitoring backstage no signal access system and method |
-
2014
- 2014-08-18 CN CN201420464306.8U patent/CN204046139U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107437848A (en) * | 2016-09-30 | 2017-12-05 | 熊云慷 | Stand with stand-by power supply in monitoring backstage no signal access system and method |
| CN107437848B (en) * | 2016-09-30 | 2021-07-06 | 熊云慷 | System and method for non-signal access of stand-by power supply in monitoring background |
| CN107202923A (en) * | 2017-05-19 | 2017-09-26 | 国网江西省电力公司电力科学研究院 | A kind of method of automatic identification distribution line transmission test tripping operation |
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