CN201845666U - Anti-burnt automatic protecting device of closing coil of breaker spring operation mechanism - Google Patents
Anti-burnt automatic protecting device of closing coil of breaker spring operation mechanism Download PDFInfo
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- CN201845666U CN201845666U CN2010205983285U CN201020598328U CN201845666U CN 201845666 U CN201845666 U CN 201845666U CN 2010205983285 U CN2010205983285 U CN 2010205983285U CN 201020598328 U CN201020598328 U CN 201020598328U CN 201845666 U CN201845666 U CN 201845666U
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- closing coil
- breaker
- control loop
- contactor
- energy storage
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Abstract
The utility model discloses an anti-burnt automatic protecting device of a closing coil of a breaker spring operation mechanism, which comprises an energy-storing loop and a control loop. The control loop is provided with a microcomputer protection device (4), a closing coil (1), a tripping coil (2) and a breaker auxiliary contact (3). The energy-storing loop is provided with an energy-storing motor (6), a position limit switch (5), an indicating lamp (8) and a direct current contactor (9), wherein the direct current contactor (9) is in series connection with the position limit switch (5) on the energy-storing loop; one contact of the direct current contactor (9) is in series connection with the closing coil (1) on the control loop; and other two contacts of the direct current contactor are respectively arranged at two ends of the energy-saving motor (6). The anti-burnt automatic protecting device can reduce power-off time, improve reliability of power supplying and use rate of the breaker and ensure safe, reliable and economic operation of power supply and use.
Description
One. technical field: the utility model relates to a kind of breaker spring operating mechanism, particularly relates to the anti-automatic safety device that burns of a kind of breaker spring operating mechanism closing coil.
Two. background technology: in real operation of power networks, often do not finish or not energy storage in the breaker switching-on operation process because of the operating mechanism energy storage, control loop receives reclosing command, the circuit breaker auxiliary contact can not in time disconnect, make closing coil long charged, cause closing coil to burn phenomenon and take place.Because of energy storage motor loop and closing coil control loop are two independent loops, between no any mutual locking.Rely on the tank circuit travel switch to disconnect the energy storage motor power supply, limited because of travel switch contact breaking capacity, can cause the contact to break not open, and scorification stick together, cause travel switch to burn.
Fig. 1 and Fig. 2 are circuit breaker spring operating mechanism normal operation in the prior art: when operating personnel send reclosing command by microcomputer protecting device 4; circuit breaker self normally closed contact 3 is closed at this moment; closing coil 1 is charged; the breaker closing success; circuit breaker self normally closed contact 3 disconnects, the closing circuit outage.This moment, circuit breaker began energy storage again, travel switch 5 closures in the tank circuit, and energy storage motor 6 operations, after energy storage was finished, travel switch 5 disconnected, and mechanism's energy storage signal lamp 8 is bright.
Wherein cause closing coil 1, travel switch 5 to burn reason:
1, often do not finish or not energy storage because of the operating mechanism energy storage in the breaker switching-on operation process, control loop receives reclosing command, and circuit breaker auxiliary contact 3 can not in time disconnect, and makes closing coil 1 long charged, causes closing coil 1 to burn phenomenon and takes place.2, less in the circuit breaker thermal energy storage process because of travel switch 5 capacity, can only pass through little electric current, travel switch 5 often occurs and break not open, burn.
Three. the utility model content:
Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of reasonable in design, simple in structure, safe and reliable and guarantee can safety for electricity consumption the anti-automatic safety device that burns of breaker spring operating mechanism closing coil.
The technical solution of the utility model is: the anti-automatic safety device that burns of a kind of breaker spring operating mechanism closing coil; contain tank circuit and control loop; described control loop is provided with microcomputer protecting device, closing coil, breaking coil and circuit breaker auxiliary contact; described tank circuit is provided with energy storage motor, travel switch and indicator light, and described tank circuit is provided with D.C. contactor.
Described D.C. contactor is connected in series with travel switch on the described tank circuit, and contact of described D.C. contactor is connected in series with the closing coil on the described control loop, and two contacts in addition are in the two ends of described energy storage motor respectively.
The beneficial effects of the utility model are:
1, the utility model only need install a D.C. contactor additional, does not need cabling, does not also need to remove existing equipment, only need carry out simple wiring and correct, and the reconfiguration line time is very short, efficient is high.
2, the utility model can reduce interruption duration, improve power supply reliability, improves the breaker apparatus utilance, guarantee for electricity consumption can be safely, reliably, economical operation.
3, the utility model is reasonable in design, simple in structure, and cost is lower, has good economic benefit after the popularization.
Four. description of drawings:
Fig. 1 is the structural representation of circuit breaker spring operating mechanism control loop in the prior art;
Fig. 2 is the structural representation of circuit breaker spring operating mechanism tank circuit in the prior art;
Fig. 3 is the structural representation of the utility model control loop;
Fig. 4 is the structural representation of the utility model tank circuit.
Five. embodiment:
Embodiment: referring to Fig. 3-Fig. 4, among the figure, 1-closing coil, 2-breaking coil, 3-circuit breaker auxiliary contact, 4-microcomputer protecting device, 5-travel switch, 6-energy storage motor, 7-air switch, 8-indicator light, 9-D.C. contactor.
The anti-automatic safety device that burns of breaker spring operating mechanism closing coil contains tank circuit and control loop; control loop is provided with microcomputer protecting device 4, closing coil 1, breaking coil 2 and circuit breaker auxiliary contact 3; tank circuit is provided with energy storage motor 6, travel switch 5 and indicator light 8, and tank circuit is provided with D.C. contactor 9.This D.C. contactor 9 is connected in series with travel switch 5 on the tank circuit, and contact of D.C. contactor 9 is connected in series with the closing coil 1 on the control loop, and two contacts in addition are in the two ends of energy storage motor 6 respectively.
When operating personnel sent reclosing command by microcomputer protecting device 4, circuit breaker auxiliary contact 3 was closed at this moment, and closing coil 1 is charged, the breaker closing success, and circuit breaker auxiliary contact 3 disconnects, the closing circuit outage.Travel switch 5 is slowly closed in the tank circuit at this moment, it is charged to start D.C. contactor 9 coils, D.C. contactor 9 normal opened contact closures, start energy storage motor 6 operations, circuit breaker restarts energy storage, after energy storage is finished, travel switch 5 disconnects, make D.C. contactor 9 coil blackouts, energy storage motor 6 is out of service, and mechanism's energy storage signal lamp 8 is bright.
Wherein avoid closing coil, travel switch to burn method:
1, before the combined floodgate, circuit breaker auxiliary contact 3 is in closure state, if do not finish or not energy storage because of the operating mechanism energy storage in the breaker switching-on operation process, travel switch 5 closures, it is charged to start D.C. contactor 9, is serially connected in the closing circuit D.C. contactor 9 normally closed contacts and opens, when control loop receives reclosing command, closing circuit still is in off-state, effectively avoids closing coil 1 long charged, prevents that closing coil 1 from burning.
2, start D.C. contactor 9 coils by travel switch 5 (little electric current), D.C. contactor 9 normal opened contact closures start energy storage motor 6 operations.By travel switch 5 (little electric current) control D.C. contactor 9 coils, reach the purpose of D.C. contactor 9 contacts (big electric current) control energy storage motor 6, effectively avoid travel switch 5 to burn.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (2)
1. a breaker spring operating mechanism closing coil prevents burning automatic safety device; contain tank circuit and control loop; described control loop is provided with microcomputer protecting device (4), closing coil (1), breaking coil (2) and circuit breaker auxiliary contact (3); described tank circuit is provided with energy storage motor (6), travel switch (5) and indicator light (8), it is characterized in that: described tank circuit is provided with D.C. contactor (9).
2. the anti-automatic safety device that burns of breaker spring operating mechanism closing coil according to claim 1; it is characterized in that: described D.C. contactor (9) is connected in series with travel switch (5) on the described tank circuit; and; contact of described D.C. contactor (9) is connected in series with the closing coil (1) on the described control loop, and two contacts in addition are in the two ends of described energy storage motor (6) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205983285U CN201845666U (en) | 2010-11-10 | 2010-11-10 | Anti-burnt automatic protecting device of closing coil of breaker spring operation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205983285U CN201845666U (en) | 2010-11-10 | 2010-11-10 | Anti-burnt automatic protecting device of closing coil of breaker spring operation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201845666U true CN201845666U (en) | 2011-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205983285U Expired - Fee Related CN201845666U (en) | 2010-11-10 | 2010-11-10 | Anti-burnt automatic protecting device of closing coil of breaker spring operation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201845666U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008908A (en) * | 2014-06-16 | 2014-08-27 | 国家电网公司 | Burnout-preventing starting circuit |
| CN105098735A (en) * | 2015-08-25 | 2015-11-25 | 国家电网公司 | Breaking-closing coil protection device |
| CN107634499A (en) * | 2017-09-28 | 2018-01-26 | 广东电网有限责任公司东莞供电局 | Double-protection load switch fuse combined electrical apparatus and circuit structure |
| CN107634498A (en) * | 2017-09-28 | 2018-01-26 | 广东电网有限责任公司东莞供电局 | Multifunctional protection load switch cabinet and circuit structure |
| CN108054058A (en) * | 2018-01-11 | 2018-05-18 | 山东钢铁股份有限公司 | The control observation circuit of breaker spring energy storage |
| CN108320987A (en) * | 2018-01-08 | 2018-07-24 | 国网河南省电力公司灵宝市供电公司 | A kind of novel high-voltage circuit-breaker closing protective circuit |
| CN110875163A (en) * | 2018-08-30 | 2020-03-10 | 江苏爱斯凯电气有限公司 | Device based on protection intelligence universal circuit breaker closing coil |
-
2010
- 2010-11-10 CN CN2010205983285U patent/CN201845666U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008908A (en) * | 2014-06-16 | 2014-08-27 | 国家电网公司 | Burnout-preventing starting circuit |
| CN105098735A (en) * | 2015-08-25 | 2015-11-25 | 国家电网公司 | Breaking-closing coil protection device |
| CN107634499A (en) * | 2017-09-28 | 2018-01-26 | 广东电网有限责任公司东莞供电局 | Double-protection load switch fuse combined electrical apparatus and circuit structure |
| CN107634498A (en) * | 2017-09-28 | 2018-01-26 | 广东电网有限责任公司东莞供电局 | Multifunctional protection load switch cabinet and circuit structure |
| CN108320987A (en) * | 2018-01-08 | 2018-07-24 | 国网河南省电力公司灵宝市供电公司 | A kind of novel high-voltage circuit-breaker closing protective circuit |
| CN108054058A (en) * | 2018-01-11 | 2018-05-18 | 山东钢铁股份有限公司 | The control observation circuit of breaker spring energy storage |
| CN108054058B (en) * | 2018-01-11 | 2024-03-15 | 山东钢铁股份有限公司 | Control monitoring circuit for breaker spring energy storage |
| CN110875163A (en) * | 2018-08-30 | 2020-03-10 | 江苏爱斯凯电气有限公司 | Device based on protection intelligence universal circuit breaker closing coil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20111110 |