CN202363976U - Transformer substation comprehensive automatic breaker control loop with burning-out proof function - Google Patents
Transformer substation comprehensive automatic breaker control loop with burning-out proof function Download PDFInfo
- Publication number
- CN202363976U CN202363976U CN2011205010016U CN201120501001U CN202363976U CN 202363976 U CN202363976 U CN 202363976U CN 2011205010016 U CN2011205010016 U CN 2011205010016U CN 201120501001 U CN201120501001 U CN 201120501001U CN 202363976 U CN202363976 U CN 202363976U
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- China
- Prior art keywords
- breaker
- circuit
- loop
- relay
- control loop
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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- Keying Circuit Devices (AREA)
Abstract
The utility model discloses a transformer substation comprehensive automatic breaker control loop with burning-out proof function, comprising a breaker closing circuit and a breaker tripping circuit. The transformer substation comprehensive automatic breaker control loop is characterized in that a breaker closing coil of the breaker closing circuit and a breaker tripping coil of the breaker tripping circuit are simultaneously connected with a timeout time relay in parallel; a timeout cut-off control loop intermediate relay is connected in the breaker closing circuit and the breaker tripping circuit in parallel, a normally closed contact of the intermediate relay is connected in the breaker closing circuit in series, the normally closed contact of the intermediate relay is connected in the breaker tripping circuit in series, and the normally closed contact of the intermediate relay is connected in the loop of the timeout time relay in series. The improved breaker control loop avoids the accidents of burning out of the electrical elements of the closing/tripping circuit and the protection devices, reduces the maintenance charge of the transformer substation, guarantees the safe operation of the equipment, and can send a 'breaker mechanism failure' signal to a dispatching center in time when the above situation exists.
Description
Technical field
The utility model relates to a kind of integrated automation of transformation stations breaker control circuit, specifically is the improvement to integrated automation of transformation stations breaker control circuit.
Background technology
At present, in the electric substation automation system breaker control circuit, but most comprehensive automations protection is generally being closed/increase the combined floodgate latching relay HBJ and the latching relay TBJ that trips in the trip(ping) circuit in order to guarantee closing/tripping operation.The PRCK96-112C circuit series protection measure and control device that the Nanrui Jibao Electric Co., Ltd that 35kv Long Wen transformer station of Mei County power supply administration adopts produces has just adopted this design.As shown in Figure 1: this designs self also zero defect, but in actual motion, because circuit breaker and problems such as auxiliary contact mismate, circuit breaker bite.The circuit breaker that is in operation closes/have 4 problems during trip operation.The first, close at circuit breaker/when tripping, breaker mechanism and auxiliary switch mismate or auxiliary switch break down sometimes.During combined floodgate, the breaker closing auxiliary switch normally-closed contact QF1 that puts in place can not break off; During tripping operation, circuit breaker trip puts auxiliary switch normally opened contact QF2 in place can not be closed.The second, breaker mechanism itself is dumb, bite occurs, though close at circuit breaker/close/the long-term conducting of trip(ping) circuit during trip operation, because of mechanism's problem is not closed circuit breaker or jumped not open circuit breaker.Below either way cause closing/trip(ping) circuit can not in time break off because of the inner auxiliary switch contact of breaker mechanism; Make to close/trip(ping) circuit keeps conducting state for a long time, burn out circuit breaker closing coil, breaking coil, close/trip other elements in latching relay or the protective device.The 3rd; Remote operation closes in transformer station/and when tripping, because mechanism, protective device and control loop time mismate, auxiliary contact was opened evening; The closing coil electrification time is too short; The combined floodgate iron core can not push up and reach the position, and it is unsuccessful to cause remote operation to close a floodgate, even burns element such as auxiliary contact.It is more outstanding that this situation is transformed station (electromagnetic mechanism, vacuum switch and comprehensive self-shield) situation in comprehensive automation.The 4th, in spring operating mechanism, if not under the situation of energy storage and the misoperation of closing/tripping, be prone to cause close at spring/trip(ping) circuit keep conducting state for a long time and cause close/breaking coil burns.More than several kinds of situation can both cause the loop can not in time break off because of the inner auxiliary switch contact of breaker mechanism; Make to close/trip(ping) circuit keeps conducting state for a long time, burn out circuit breaker closing coil, breaking coil, close/trip other elements in latching relay or the protective device.Now each transformer station carries out unattendedly, and all breaker operators are carried out by remote control entirely, and this situation is in case occur, and protection can not signaled, until close/the trip(ping) circuit electric elements burn out the back and send out " control loop broken string " signal and just can know.This situation is more obvious when the old integrated automation of transformation stations is transformed, and is therefore extremely urgent, imperative to the improvement of automation of transformation substations control loop.
Summary of the invention
In order to overcome above-mentioned deficiency, it is a kind of when the breaker mechanism fault that the purpose of the utility model is to provide, and can prevent that breaker control circuit element and protective device element from burning out the integrated automation of transformation stations breaker control circuit that incident takes place.
A kind of integrated automation of transformation stations breaker control circuit with burnout-proof function; Include breaker closing loop and circuit breaker trip loop, it is characterized in that: be parallel with the time-out time relay simultaneously on the breaker closing coil in said breaker closing loop and the circuit breaker trip coil in circuit breaker trip loop; In breaker closing loop and circuit breaker trip loop the parallel connection overtime disconnection control loop auxiliary relay; In the breaker closing loop, seal in the normally-closed contact of overtime disconnection control loop auxiliary relay; In the circuit breaker trip loop, seal in the normally-closed contact of overtime disconnection control loop auxiliary relay, in the loop of time-out time relay, seal in the normally-closed contact of overtime disconnection control loop auxiliary relay.
The setting time of said time-out time relay is 0.5～1s.
Said time-out time relay adopts the SS-94B/1-1 relay.
Said overtime disconnection control loop auxiliary relay adopts the JDZ-70/Y direct solenoid auxiliary relay of being permitted to continue.
The normally opened contact action of said overtime disconnection control loop auxiliary relay is passed to dispatching terminal with fault-signal.
The utility model beneficial effect: the breaker control circuit after improving; Avoided closing/sub-gate circuit electric elements and protective device burn out the generation of incident; Reduced the maintenance cost of transformer station; Guaranteed the safe operation of equipment, and when above-mentioned situation occurring, can in time send " breaker mechanism fault " signal to dispatching terminal.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done further to specify.
Fig. 1 is the circuit diagram of traditional integrated automation of transformation stations breaker control circuit;
Fig. 2 is the circuit diagram of the utility model.
Embodiment
As shown in Figure 2; A kind of integrated automation of transformation stations breaker control circuit with burnout-proof function; Include breaker closing loop and circuit breaker trip loop, in breaker closing loop and circuit breaker trip loop, increase and close/trip time-out time relay SJ and close/trip overtime disconnection control loop intermediate relay ZJ L.Promptly in the breaker closing loop, seal in the normally-closed contact ZJL-1 of overtime disconnection control loop intermediate relay ZJ L, in the circuit breaker trip loop, seal in the normally-closed contact ZJL-2 of overtime disconnection control loop intermediate relay ZJ L.At the breaking coil of the closing coil of circuit breaker HC and circuit breaker TQ other and on time-out time relay SJ, and in the loop, seal in the normally-closed contact ZJL-3 of auxiliary relay, long charged and burn to avoid the time-out time relay coil.
The setting time of time-out time relay SJ can to adjust be 0.5～1s by actual disconnected fashionable of circuit breaker.Close/trip(ping) circuit operate time (each element intrinsic operate time, circuit breaker close/trip time and breaker mechanism auxiliary contact action current interruption time sum) and generally be no more than 0.2 s, and close/trip time that each element in maintenance loop can bear (comprising closing/breaking coil) the self-sustaining electric current at least more than 1 s.Therefore, the time setting that closes/trip the time-out time relay is 0.5～1 s, but closing/tripping operation can guarantee fault-free the time does not damage the control loop electric elements in the time of guaranteeing fault again.Under the situation that mechanism breaks down, overtime disconnection control loop intermediate relay ZJ L starts, and auxiliary relay normally opened contact ZJL-5 action is to dispatching terminal newspaper " mechanism-trouble signal ".
Through various technical parameters relatively, time-out time relay SJ selects high-precision SS-94B/1-1 relay.Overtime disconnection control loop intermediate relay ZJ L selects normally closed contact to have the relay of superpower current interruption ability (can reliably break off closing circuit, trip(ping) circuit).The selection JDZ-70/Y direct solenoid auxiliary relay (inductive load, T＞0.05 s, operating value＞70%Ue, return value＜2%U e, power consumption＞5 W, electric shock capacity＞50 W can pass through 5 A for a long time for contact form 420, direct current 220 V) of being permitted to continue.Press the technical parameter of JDZ-70/Y auxiliary relay, number of contacts meets the demands fully, reliably the closing circuit and the trip(ping) circuit of cut-off breaker.
The above is the preferred implementation of the utility model, can not limit the interest field of the utility model certainly with this.Should be pointed out that for those skilled in the art, the technical scheme of the utility model is made amendment or is equal to replacement, do not break away from the protection range of the utility model.
Claims (5)
1. integrated automation of transformation stations breaker control circuit with burnout-proof function; Include breaker closing loop and circuit breaker trip loop, it is characterized in that: be parallel with time-out time relay (SJ) simultaneously on the breaker closing coil (HC) in said breaker closing loop and the circuit breaker trip coil (TQ) in circuit breaker trip loop; In breaker closing loop and circuit breaker trip loop the parallel connection overtime disconnection control loop auxiliary relay (ZJL); In the breaker closing loop, seal in the normally-closed contact (ZJL-1) of overtime disconnection control loop auxiliary relay (ZJL); In the circuit breaker trip loop, seal in the normally-closed contact (ZJL-2) of overtime disconnection control loop auxiliary relay (ZJL), in the loop of time-out time relay (SJ), seal in the normally-closed contact (ZJL-3) of overtime disconnection control loop auxiliary relay (ZJL).
2. the integrated automation of transformation stations breaker control circuit with burnout-proof function according to claim 1 is characterized in that: the setting time of said time-out time relay (SJ) is 0.5～1s.
3. the integrated automation of transformation stations breaker control circuit with burnout-proof function according to claim 1 is characterized in that: said time-out time relay (SJ) adopts the SS-94B/1-1 relay.
4. the integrated automation of transformation stations breaker control circuit with burnout-proof function according to claim 1 is characterized in that: said overtime disconnection control loop auxiliary relay (ZJL) adopts the JDZ-70/Y direct solenoid auxiliary relay of being permitted to continue.
5. the integrated automation of transformation stations breaker control circuit with burnout-proof function according to claim 1; It is characterized in that: normally opened contact (ZJL-5) action of said overtime disconnection control loop auxiliary relay (ZJL), fault-signal is passed to dispatching terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205010016U CN202363976U (en) | 2011-12-06 | 2011-12-06 | Transformer substation comprehensive automatic breaker control loop with burning-out proof function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205010016U CN202363976U (en) | 2011-12-06 | 2011-12-06 | Transformer substation comprehensive automatic breaker control loop with burning-out proof function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202363976U true CN202363976U (en) | 2012-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205010016U Expired - Fee Related CN202363976U (en) | 2011-12-06 | 2011-12-06 | Transformer substation comprehensive automatic breaker control loop with burning-out proof function |
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| CN (1) | CN202363976U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982711A (en) * | 2012-11-22 | 2013-03-20 | 郑州万特电气有限公司 | Training device of split-phase breaker spring operation mechanisms |
| CN103545795A (en) * | 2013-09-29 | 2014-01-29 | 国家电网公司 | Breaker tripping protector |
| CN103839702A (en) * | 2014-03-27 | 2014-06-04 | 莱芜钢铁集团有限公司 | Closing circuit of breaker |
| CN104821557A (en) * | 2015-04-23 | 2015-08-05 | 中国能源建设集团江苏省电力设计院有限公司 | Control loop of breaker operation box |
| CN113315098A (en) * | 2021-06-04 | 2021-08-27 | 贵州电网有限责任公司 | Control circuit for preventing breaker tripping coil from being burnt |
-
2011
- 2011-12-06 CN CN2011205010016U patent/CN202363976U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982711A (en) * | 2012-11-22 | 2013-03-20 | 郑州万特电气有限公司 | Training device of split-phase breaker spring operation mechanisms |
| CN103545795A (en) * | 2013-09-29 | 2014-01-29 | 国家电网公司 | Breaker tripping protector |
| CN103839702A (en) * | 2014-03-27 | 2014-06-04 | 莱芜钢铁集团有限公司 | Closing circuit of breaker |
| CN103839702B (en) * | 2014-03-27 | 2015-10-07 | 莱芜钢铁集团有限公司 | A kind of closing circuit of circuit breaker |
| CN104821557A (en) * | 2015-04-23 | 2015-08-05 | 中国能源建设集团江苏省电力设计院有限公司 | Control loop of breaker operation box |
| CN104821557B (en) * | 2015-04-23 | 2017-06-16 | 中国能源建设集团江苏省电力设计院有限公司 | A kind of control loop of breaker operation cabinet |
| CN113315098A (en) * | 2021-06-04 | 2021-08-27 | 贵州电网有限责任公司 | Control circuit for preventing breaker tripping coil from being burnt |
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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: 20120801 Termination date: 20151206 |
|
| EXPY | Termination of patent right or utility model |