CN204597238U - 220kV double bus scheme system, control circuit - Google Patents
220kV double bus scheme system, control circuit Download PDFInfo
- Publication number
- CN204597238U CN204597238U CN201520333806.2U CN201520333806U CN204597238U CN 204597238 U CN204597238 U CN 204597238U CN 201520333806 U CN201520333806 U CN 201520333806U CN 204597238 U CN204597238 U CN 204597238U
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- Prior art keywords
- hand
- relay
- route protection
- cabinet
- protection cabinet
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Abstract
The utility model discloses a kind of 220kV double bus scheme system, control circuit; belong to wiring system control technology field, power plant; carrying out in hand jumping breaker operator situation in order to overcome prior art; second cover route protection can be judged to circuit breaker jump and overlap by mistake, the problem that two sides protects the accident resultant signal of cabinet correctly not send.Comprise circuit observing and controlling cabinet, first set route protection cabinet, the second cover route protection cabinet; hand in first set route protection cabinet jumps relay, hand closes relay equal line attachment observing and controlling cabinet; the first set route protection cabinet hand forming connection line observing and controlling cabinet jumps control loop and hand conjunction control loop; it is characterized in that; described hand is jumped relay and is assisted control cables to access the second cover route protection cabinet by hand jumping relay, forms the second cover route protection cabinet hand jumping control loop of connection line observing and controlling cabinet.Control for power plant wiring system especially 220kV double bus scheme circuit system.
Description
Technical field
The utility model belongs to wiring system control technology field, power plant, refers to a kind of 220kV double bus scheme system, control circuit especially.
Background technology
Double bus scheme system has powers reliably, and flexibly, extending conveniently, be convenient to the advantages such as design, is the widely used a kind of wiring system in power plant in scheduling.At present, the design of 220kV route protection all adopts allocation plan and route protection one cabinet of two sides screen: first set line protection reclosure device+phase-splitting control box, containing voltage switching function; Route protection two cabinet: second line protection reclosure device+phase-splitting control box, containing voltage switching function.Namely often overlap route protection and independently use " single-hop, a single conjunction " control box separately, due to the restriction of primary equipment manufacturing capacity, current circuit breaker is the mechanism of two breaking coil list closing coil, does not possess two groups of closing coils.Standardized designs code requirement computer supervisory control system should provide two groups distant jumper connection points, secondary circuit design should ensure two sides protection cabinet all possesses complete reclosing function.When supervisory control system because the restriction being subject to five anti-locksets can only provide two groups of distant jumpings, one group distant splice grafting point, all can reliably access for the distant jumping of control box of first set route protection cabinet, distant conjunction, hand jumping, hand splice grafting point; The control box of the second cover route protection cabinet does not connect distant conjunction, hand jumpings, hand splice grafting point, it jumps position monitoring circuit and solve by accessing the normally closed auxiliary contact of circuit breaker.When carrying out hand and jump breaker operator and dropping into position uncorresponding start-up reclosing, the second cover route protection can be judged to circuit breaker jump and overlap by mistake, the problem that two sides protects the accident resultant signal of cabinet correctly not send.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of 220kV double bus scheme system, control circuit; in order to overcome prior art when carrying out hand and jump breaker operator and dropping into position uncorresponding start-up reclosing; second cover route protection can be judged to circuit breaker jump and overlap by mistake, the problem that two sides protects the accident resultant signal of cabinet correctly not send.
For solving the problems of the technologies described above, the utility model provides a kind of 220kV double bus scheme system, control circuit, comprise circuit observing and controlling cabinet, first set route protection cabinet, second cover route protection cabinet, hand in first set route protection cabinet jumps relay, hand closes relay equal line attachment observing and controlling cabinet, the first set route protection cabinet hand forming connection line observing and controlling cabinet jumps control loop and hand conjunction control loop, described hand is jumped relay and is assisted control cables to access the second cover route protection cabinet by hand jumping relay, the the second cover route protection cabinet hand forming connection line observing and controlling cabinet jumps control loop.
Described hand conjunction relay also can close relay by hand and assist control cables to access the second cover route protection cabinet, forms the second cover route protection cabinet hand conjunction control loop of connection line observing and controlling cabinet.
Described hand is jumped relay and is assisted control cables, hand conjunction relay to assist control cables specification to can be 4 × 2.5.
Described hand is jumped relay and is assisted control cables to be provided with hand jumping relay auxiliary switch, and described hand closes relay and assists control cables to be provided with hand conjunction relay auxiliary switch.
Described hand jumps relay auxiliary switch and hand conjunction relay auxiliary switch is positioned at first set route protection cabinet.
Described hand jumps relay auxiliary switch and hand conjunction relay auxiliary switch is normal open switch.
The beneficial effect of technique scheme of the present utility model is as follows:
In such scheme, the contact of the hand of control box in first set route protection cabinet being jumped relay is connected to the hand rebound road of the second cover route protection cabinet control box, when performing hand jumping operation in first set route protection cabinet, second cover route protection cabinet also realizes hand rebound road by the hand jumping relay of first set route protection cabinet, two sides protection cabinet has complete reclosing function, the hand of first set route protection cabinet control box is closed the hand conjunction loop that relay tip is connected to the second cover route protection cabinet control box simultaneously, when hand closes circuit breaker, second cover route protection hand cashier's office in a shop closes loop and also can be activated, the accident resultant signal of two sides protection cabinet all can correctly send.Arrange auxiliary switch can accomplish not use reclosing feature operation under given conditions.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the utility model embodiment one;
Fig. 2 is the circuit diagram of the utility model embodiment two.
Main element symbol description:
1, circuit observing and controlling cabinet;
2, first set route protection cabinet;
3, the second cover route protection cabinet;
4, hand jumps relay;
5, hand closes relay;
6, hand is jumped relay and is assisted control cables;
7, hand closes relay and assists control cables;
8, hand jumps relay auxiliary switch;
9, hand closes relay auxiliary switch.
Embodiment
For making the technical problems to be solved in the utility model, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The utility model for existing technology when carry out hand jump breaker operator and drop into position uncorresponding start-up reclosing; second cover route protection can be judged to circuit breaker jump and overlap by mistake, the problem that two sides protects the accident resultant signal of cabinet correctly not send.A kind of 220kV double bus scheme system, control circuit is provided.
Embodiment one:
As shown in Figure 1; a kind of 220kV double bus scheme system, control circuit; comprise circuit observing and controlling cabinet 1, first set route protection cabinet 2, second overlaps route protection cabinet 3; hand in first set route protection cabinet 2 jumps relay 4, hand closes relay 5 all line attachment observing and controlling cabinets; first set route protection cabinet 2 hand forming connection line observing and controlling cabinet jumps control loop and hand conjunction control loop; hand is jumped relay 4 and is assisted control cables 6 to access the second cover route protection cabinet 3 by hand jumping relay, and the second cover route protection cabinet hand forming connection line observing and controlling cabinet 1 jumps control loop.When performing hand jumping operation in first set route protection cabinet 2, the second cover route protection cabinet 3 also realizes hand rebound road by the hand jumping relay 4 of first set route protection cabinet 2, and two sides protection cabinet has complete reclosing function.
As further improvement, hand is jumped relay and is assisted control cables 6 specification to be 4 × 2.5.
As further improvement, hand is jumped relay and is assisted control cables 6 to be provided with hand jumping relay auxiliary switch 8, because power plant electric power thus supplied is complicated, in particular cases may not need to realize reclosing at some to control, outfit hand jumping relay auxiliary switch 8 can solve the application problem under specified conditions.
As further improvement, hand is jumped relay auxiliary switch 8 and is positioned at first set route protection cabinet 2, convenient operation, and it is normal open switch that hand jumps relay auxiliary switch 8, in order to adapt to the operation under normal operating condition.
Embodiment two:
As shown in Figure 2, as further improvement, hand closes relay 5 and also assists control cables 7 to access the second cover route protection cabinet 3 by hand conjunction relay, and the second cover route protection cabinet hand forming connection line observing and controlling cabinet 1 closes control loop.When hand closes circuit breaker, the hand on the second cover route protection cabinet 3 closes loop and also can be activated, and the accident resultant signal of two sides protection cabinet all can correctly send.
As further improvement, hand closes relay and assists control cables 7 specification to be 4 × 2.5.
As further improvement, hand closes relay and assists control cables 7 to be provided with hand conjunction relay auxiliary switch 9, because power plant electric power thus supplied is complicated, is equipped with hand and closes the application problem not using reclosing function under relay auxiliary switch 9 can solve specified conditions.
As further improvement, hand closes relay auxiliary switch 9 and is positioned at first set route protection cabinet 2, convenient operation, and it is normal open switch that hand closes relay auxiliary switch 9, in order to adapt to the operation under normal operating condition.
In such scheme, the contact of the hand of control box in first set route protection cabinet being jumped relay is connected to the hand rebound road of the second cover route protection cabinet control box, when performing hand jumping operation in first set route protection cabinet, second cover route protection cabinet also realizes hand rebound road by the hand jumping relay of first set route protection cabinet, two sides protection cabinet has complete reclosing function, the hand of first set route protection cabinet control box is closed the hand conjunction loop that relay tip is connected to the second cover route protection cabinet control box simultaneously, when hand closes circuit breaker, second cover route protection hand cashier's office in a shop closes loop and also can be activated, the accident resultant signal of two sides protection cabinet all can correctly send.Arrange auxiliary switch can accomplish not use reclosing feature operation under given conditions.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (7)
1. a 220kV double bus scheme system, control circuit; comprise circuit observing and controlling cabinet, first set route protection cabinet, the second cover route protection cabinet; hand in first set route protection cabinet jumps relay, hand closes relay equal line attachment observing and controlling cabinet; the first set route protection cabinet hand forming connection line observing and controlling cabinet jumps control loop and hand conjunction control loop; it is characterized in that; described hand is jumped relay and is assisted control cables to access the second cover route protection cabinet by hand jumping relay, forms the second cover route protection cabinet hand jumping control loop of connection line observing and controlling cabinet.
2. 220kV double bus scheme system, control circuit according to claim 1, is characterized in that, described hand is jumped relay and assisted control cables specification to be 4 × 2.5.
3. 220kV double bus scheme system, control circuit according to claim 1; it is characterized in that; described hand closes relay and assists control cables to access the second cover route protection cabinet by hand conjunction relay, forms the second cover route protection cabinet hand conjunction control loop of connection line observing and controlling cabinet.
4. 220kV double bus scheme system, control circuit according to claim 3, is characterized in that, described hand closes relay and assists control cables specification to be 4 × 2.5.
5. 220kV double bus scheme system, control circuit according to claim 1, it is characterized in that, described hand is jumped relay and is assisted control cables to be provided with hand jumping relay auxiliary switch, and described hand closes relay and assists control cables to be provided with hand conjunction relay auxiliary switch.
6. 220kV double bus scheme system, control circuit according to claim 5, is characterized in that, described hand jumps relay auxiliary switch and hand conjunction relay auxiliary switch is positioned at first set route protection cabinet.
7. 220kV double bus scheme system, control circuit according to claim 5, is characterized in that, described hand jumps relay auxiliary switch and hand conjunction relay auxiliary switch is normal open switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520333806.2U CN204597238U (en) | 2015-05-21 | 2015-05-21 | 220kV double bus scheme system, control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520333806.2U CN204597238U (en) | 2015-05-21 | 2015-05-21 | 220kV double bus scheme system, control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204597238U true CN204597238U (en) | 2015-08-26 |
Family
ID=53933352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520333806.2U Expired - Fee Related CN204597238U (en) | 2015-05-21 | 2015-05-21 | 220kV double bus scheme system, control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204597238U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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
- 2015-05-21 CN CN201520333806.2U patent/CN204597238U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20210521 |