CN205122507U - Circuit breaker with permanent magnetic mechanism's electrical control return circuit - Google Patents
Circuit breaker with permanent magnetic mechanism's electrical control return circuit Download PDFInfo
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- CN205122507U CN205122507U CN201520807217.3U CN201520807217U CN205122507U CN 205122507 U CN205122507 U CN 205122507U CN 201520807217 U CN201520807217 U CN 201520807217U CN 205122507 U CN205122507 U CN 205122507U
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- circuit breaker
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Abstract
The utility model provides a circuit breaker with permanent magnetic mechanism's electrical control return circuit, including computer protection device P, computer protection device P includes 13 contacts, the 11st contact after the resistance R1 that a resistance is 500 omega establishes ties with being connected of circuit breaker QF3, separating brake relay FJ and the 500 omega resistance R2 of the 13rd contact connection parallelly connected. The beneficial effects of the utility model are that, with computer protection device's matching problem, the solution is simple, the application scope guangZhou under the circumstances that be two auxiliary relay coils in the permanent magnetic mechanism in the divide -shut brake return circuit of solving.
Description
Technical field
The utility model relates to a kind of switch cubicle protective device, especially relates to a kind of electric control loop of permanent magnet mechanism circuit-breaker.
Background technology
KYN28A-12 type AC metal armored switchgear is applicable in single busbar connection that three-phase alternating current 50 hertz power system, rated voltage 12kV, bus and feeder current are 630A to 4000A or sectionalized single busbar connection system, for accept and distribute electric energy and circuit is carried out control, protection and monitoring.The handcart type breaker of joining of current KYN28A-12 type switch cubicle is mainly divided into two kinds according to operating mechanism type, i.e. spring operating mechanism and permanent-magnet operating mechanism.The permanent magnet mechanism home loop that the circuit breaker manufacturer of current main flow produces realizes controlling functions for simulating divide-shut brake coils by two auxiliary relays, the contact definition of electric loop is basically identical with conventional springs operation circuit, namely directly auxiliary relay to be placed in the middle of divide-shut brake loop, wherein divide-shut brake auxiliary relay coil resistance is 26k about Ω, much larger than resistance 200 Ω of spring operating mechanism divide-shut brake coil, likely causing cannot normal divide-shut brake, even there will be control loop power on after the direct phenomenon such as " oco-conjunction " do action.
Utility model content
The purpose of this utility model is to provide a kind of electric control loop of permanent magnet mechanism circuit-breaker, and with the matching problem of microcomputer protecting device when being two auxiliary relay coils in divide-shut brake loop in solution permanent magnet mechanism, solution is simple, applied widely.
The technical solution of the utility model is: a kind of electric control loop of permanent magnet mechanism circuit-breaker, comprise microcomputer protecting device P, described microcomputer protecting device P comprises 13 contacts, 1st contact of microcomputer protecting device P and the 10th contact are respectively by the both positive and negative polarity of circuit breaker Q F1 and circuit breaker Q F2 connection control power supply, described 2nd contact is connected positive source by deciliter switch S A1 with switch SK1 afterwards with the 3rd contact parallel connection, described 4th contact is connected positive source by brace XB1 with switch SK2 afterwards with the 5th contact parallel connection, described 6th contact and the 7th contact parallel connection are connected on the circuit that deciliter switch S A1 is connected with switch SK1 by deciliter switch S A2 afterwards, power cathode is connected to by circuit breaker Q F3 and socket XS3 after described 11st contact contact resistance R1 and socket XS1 is in parallel with the 12nd contact gang socket XS2 and closing relay HJ, described 13rd contact is by socket XS4, circuit breaker Q F4, separating brake relay FJ and socket XS5 is connected to power cathode, described 13rd contact is also by resistance R2, socket XS6, circuit breaker Q F5 and socket XS7 is connected to power cathode.
Further, the 8th contact of described microcomputer protecting device P and the 9th contact are by parallel after brace XB2.
Further, the resistance of described resistance R1 and resistance R2 is respectively 500 ohm.
Further, the model that described microcomputer protecting device P adopts is ISA-392GC.
Further, energy storage switch BS is also connected with between described closing relay HJ and circuit breaker Q F3.
The advantage that the utility model has and good effect are: it is that parallel wound drapes over one's shoulders a kind of electric control loop of glaze resistance R1 and R2 respectively in divide-shut brake loop that the utility model adopts, and effectively solve the technical parameter matching problem of permanent magnet mechanism that KYN28-12 switch cubicle joins and microcomputer protecting device.
Accompanying drawing explanation
Fig. 1 is that the electric control loop of permanent magnet mechanism circuit-breaker of the present utility model shows.
Each contact of microcomputer protecting device P definition in figure:
1, operating power+2, hand close/shake conjunction/protection conjunction 3, remote control closes a floodgate-
4, remote control close a floodgate+5, remote control tripping operation+6, remote control tripping operation-
7, hand jumping/distant jumping 8, protection jumping 9, trip protection
10, operating power-11, TWJ-12, HQ+
13、HWJ-/TQ+
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated.
Shown in the electric control loop of permanent magnet mechanism circuit-breaker as of the present utility model in Fig. 1 shows, the utility model provides a kind of electric control loop of permanent magnet mechanism circuit-breaker, comprise microcomputer protecting device P, described microcomputer protecting device P comprises 13 contacts, 1st contact of microcomputer protecting device P and the 10th contact are respectively by the both positive and negative polarity of circuit breaker Q F1 and circuit breaker Q F2 connection control power supply, described 2nd contact is connected positive source by deciliter switch S A1 with switch SK1 afterwards with the 3rd contact parallel connection, described 4th contact is connected positive source by brace XB1 with switch SK2 afterwards with the 5th contact parallel connection, described 6th contact and the 7th contact parallel connection are connected on the circuit that deciliter switch S A1 is connected with switch SK1 by deciliter switch S A2 afterwards, power cathode is connected to by circuit breaker Q F3 and socket XS3 after described 11st contact contact resistance R1 and socket XS1 is in parallel with the 12nd contact gang socket XS2 and closing relay HJ, described 13rd contact is by socket XS4, circuit breaker Q F4, separating brake relay FJ and socket XS5 is connected to power cathode, described 13rd contact is also by resistance R2, socket XS6, circuit breaker Q F5 and socket XS7 is connected to power cathode.8th contact of described microcomputer protecting device P and the 9th contact are by parallel after brace XB2.
The resistance of described resistance R1 and resistance R2 is respectively 500 ohm.The model that described microcomputer protecting device P adopts is ISA-392GC.
Further, energy storage switch BS is also connected with between described closing relay HJ and circuit breaker Q F3.
The course of work of this example: the 11st contact of microcomputer protecting device is for jumping monitoring point, position, the 11st described contact after the resistance R1 that a resistance is 500 Ω connects with the connection of circuit breaker Q F3, resistance R1 is made to become shunt circuit with the closing relay HJ of circuit breaker internal, and its equivalent resistance is about 500 Ω, the equivalent resistance of microcomputer protecting device external circuit in closing circuit is made to be about 500 Ω, much smaller than the resistance tens kilo-ohms of jumping position supervisory relay, ensure normally to close a floodgate and jump position function for monitoring normal, 13rd contact of microcomputer protecting device is for jumping position supervision/trip protection point, the separating brake relay FJ that the 13rd described contact connects is in parallel with 500 Ω resistance R2, its equivalent resistance is made to be about 500 Ω, the equivalent resistance of trip(ping) circuit microcomputer protecting device external circuit is made to be about 500 Ω, much smaller than the resistance tens kilo-ohms of co-bit supervisory relay, ensure that normal separating brake and co-bit monitor normal effect, during separating brake, separating brake loop current is greater than the initiation value of TBJ relay simultaneously, ensures that the anti-bouncing function of microcomputer protecting device device is normal.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (5)
1. the electric control loop of a permanent magnet mechanism circuit-breaker, it is characterized in that: comprise microcomputer protecting device P, described microcomputer protecting device P comprises 13 contacts, 1st contact of microcomputer protecting device P and the 10th contact are respectively by the both positive and negative polarity of circuit breaker Q F1 and circuit breaker Q F2 connection control power supply, described 2nd contact is connected positive source by deciliter switch S A1 with switch SK1 afterwards with the 3rd contact parallel connection, described 4th contact is connected positive source by brace XB1 with switch SK2 afterwards with the 5th contact parallel connection, described 6th contact and the 7th contact parallel connection are connected on the circuit that deciliter switch S A1 is connected with switch SK1 by deciliter switch S A2 afterwards, power cathode is connected to by circuit breaker Q F3 and socket XS3 after described 11st contact contact resistance R1 and socket XS1 is in parallel with the 12nd contact gang socket XS2 and closing relay HJ, described 13rd contact is by socket XS4, circuit breaker Q F4, separating brake relay FJ and socket XS5 is connected to power cathode, described 13rd contact is also by resistance R2, socket XS6, circuit breaker Q F5 and socket XS7 is connected to power cathode.
2. the electric control loop of permanent magnet mechanism circuit-breaker according to claim 1, is characterized in that: the 8th contact of described microcomputer protecting device P and the 9th contact are by parallel after brace XB2.
3. the electric control loop of permanent magnet mechanism circuit-breaker according to claim 1, is characterized in that: the resistance of described resistance R1 and resistance R2 is respectively 500 ohm.
4. the electric control loop of permanent magnet mechanism circuit-breaker according to claim 1, is characterized in that: the model that described microcomputer protecting device P adopts is ISA-392GC.
5. the electric control loop of permanent magnet mechanism circuit-breaker according to claim 1, is characterized in that: be also connected with energy storage switch BS between described closing relay HJ and circuit breaker Q F3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520807217.3U CN205122507U (en) | 2015-10-19 | 2015-10-19 | Circuit breaker with permanent magnetic mechanism's electrical control return circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520807217.3U CN205122507U (en) | 2015-10-19 | 2015-10-19 | Circuit breaker with permanent magnetic mechanism's electrical control return circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205122507U true CN205122507U (en) | 2016-03-30 |
Family
ID=55578091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520807217.3U Active CN205122507U (en) | 2015-10-19 | 2015-10-19 | Circuit breaker with permanent magnetic mechanism's electrical control return circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205122507U (en) |
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2015
- 2015-10-19 CN CN201520807217.3U patent/CN205122507U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |