CN203760403U - Circuit breaker with time relay - Google Patents
Circuit breaker with time relay Download PDFInfo
- Publication number
- CN203760403U CN203760403U CN201320886187.0U CN201320886187U CN203760403U CN 203760403 U CN203760403 U CN 203760403U CN 201320886187 U CN201320886187 U CN 201320886187U CN 203760403 U CN203760403 U CN 203760403U
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- China
- Prior art keywords
- relay
- switch
- circuit breaker
- electrically connected
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000003111 delayed Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 230000001131 transforming Effects 0.000 description 1
Abstract
The utility model belongs to the field of the improvement of circuit breakers, and specifically belongs to a circuit breaker with a time delay. The circuit breaker comprises an alternating-current contactor, a light-emitting diode, a switch-on holding relay, a trip holding relay, a circuit-breaker auxiliary contact, a switch-on coil, a protection relay, a control switch, and the time relay. The switch-on holding relay operates when the control switch is switched on, the time relay is started, and the switch-on coil is started through a contact of the switch-on holding relay. If a circuit-breaker auxiliary switch cannot be switched correctly, the auxiliary switch is replaced by the normally-closed contact of the time relay for disconnecting a switch-on loop after the time delay of the time relay (a setting value of the time delay is greater than the switch-on time of the circuit breaker), thereby enabling the switch-on relay to return, and preventing the switch-on coil from being burnt down.
Description
technical field:
The utility model belongs to circuit breaker and improves field, specifically belongs to the circuit breaker with the time relay.
background technology:
The Main Function of circuit breaker is electric current of make-and-break, and ZW32-12 type circuit breaker in use finds that the fault of closing coil often appears burning out in its closing circuit of circuit breaker: after circuit breaker action for several times, due to combined floodgate semiaxis driver plate quality problems, gap increase makes to close a floodgate, when sending, closing coil closes a floodgate after order, closing coil action, but not de-mouthful of mechanism, auxiliary switch can not switch, due to the self-holding function of combined floodgate latching relay, circuit breaker auxiliary contact can not be separated, thereby cause the long charged closing coil that burns of closing coil, cause line outage, affect power supply reliability.Because ZW32-12 type circuit breaker is installed and used in a large number, contact rear problem with producer and also cannot solve, so must undergo technological transformation to this kind of circuit breaker.
summary of the invention:
In view of this, the utility model provides the circuit breaker with the time relay that can avoid above-mentioned defect.
With the circuit breaker of the time relay, comprise: A.C. contactor, light-emitting diode, combined floodgate latching relay, tripping operation latching relay, circuit breaker auxiliary contact, closing coil, protection relay, control switch, the time relay, A.C. contactor positive pole respectively with one end of light-emitting diode, one end of one group of normally-closed contact of combined floodgate latching relay, one end of control switch is electrically connected, the other end of light-emitting diode, the other end of one group of normally-closed contact of combined floodgate latching relay, the other end of control switch is all electrically connected with one end of one group of normally-closed contact of protection relay, one end of one end of one group of normally opened contact of protection relay and tripping operation latching relay is all electrically connected with one end of one group of normally-closed contact of above-mentioned protection relay, the other end of the other end of one group of normally opened contact of protection relay and tripping operation latching relay is all electrically connected with one end of protection relay, the other end of protection relay and A.C. contactor negative pole are electrically connected, the other end of one group of normally-closed contact of protection relay and one end of combined floodgate latching relay are electrically connected, one end of the other end of combined floodgate latching relay and circuit breaker auxiliary contact is electrically connected, one end of one group of normally-closed contact of the other end of circuit breaker auxiliary contact and the time relay is electrically connected, the other end of one group of normally-closed contact of the time relay respectively with one end of closing coil, one end of the time relay is electrically connected, the other end of closing coil, the other end of the time relay is all electrically connected with the negative pole of A.C. contactor.
Closed control switch, the action of combined floodgate latching relay, simultaneously start-up time relay, there is combined floodgate latching relay contact to start closing coil, if auxiliary switch for circuit breaker can not correctly switch, after elapsed time relay time delay (delayed setting value is greater than the breaker closing time), normally-closed contact by the time relay replaces auxiliary switch, closing circuit is disconnected, closing relay is returned, just can avoid closing coil to be burnt.
The main technical detail of installing and using according to circuit breaker, the breaker closing time is for being not more than 0.3 s.If the delayed setting value of the time relay approaches very much the closing time of circuit breaker, may make circuit breaker in the time not completing combined floodgate, relay normally-closed contact just disconnects closing circuit, affects the normal combined floodgate of circuit breaker; If the delayed setting value of the time relay is oversize, in operating breaker making process, as the reason because of above-mentioned analysis, just cannot protect closing coil not burnt.
Through ZW32-12 type breaker closing coil is added to electric test, under rated voltage 220V, 500ms left and right coil will burn.
Therefore be, that 400ms is comparatively suitable by the delayed setting value of the time relay.So both ensured that circuit breaker can close a floodgate smoothly, do not burnt out again closing coil.
The utility model can be reduced to 0 by Burnout of Closing Coil number of times, ensureing, on the basis of powered operation, also to save manpower, saves replacement cost.
brief description of the drawings:
Fig. 1 is the breaker circuit figure with the time relay.
In figure: A.C. contactor KM, light-emitting diode LD, combined floodgate latching relay HBJ, tripping operation latching relay TBJ, circuit breaker auxiliary contact DL1, closing coil HQ, protection relay FTJ, control switch KK, time relay 1SJ.
embodiment:
Please refer to the circuit breaker with the time relay as shown in Figure 1, comprise A.C. contactor KM, light-emitting diode LD, combined floodgate latching relay HBJ, tripping operation latching relay TBJ, circuit breaker auxiliary contact DL1, closing coil HQ, protection relay FTJ, control switch KK, time relay 1SJ, A.C. contactor positive pole+KM respectively with one end of light-emitting diode LD, one end of one group of normally-closed contact HBJ1 of combined floodgate latching relay, one end of control switch KK is electrically connected, the other end of light-emitting diode LD, the other end of one group of normally-closed contact HBJ1 of combined floodgate latching relay, the other end of control switch KK is all electrically connected with one end of one group of normally-closed contact FTJ1 of protection relay, one end of one end of one group of normally opened contact FTJ2 of protection relay and tripping operation latching relay TBJ is all electrically connected with one end of one group of normally-closed contact FTJ1 of above-mentioned protection relay, the other end of the other end of one group of normally opened contact FTJ2 of protection relay and tripping operation latching relay TBJ is all electrically connected with one end of protection relay FTJ, the other end of protection relay FTJ and A.C. contactor negative pole-KM is electrically connected, one end of the other end of one group of normally-closed contact FTJ1 of protection relay and combined floodgate latching relay HBJ is electrically connected, one end of the other end of combined floodgate latching relay HBJ and circuit breaker auxiliary contact DL1 is electrically connected, one end of the other end of circuit breaker auxiliary contact DL1 and one group of normally-closed contact 1SJ1 of the time relay is electrically connected, the other end of one group of normally-closed contact 1SJ1 of the time relay respectively with one end of closing coil HQ, one end of time relay 1SJ is electrically connected, the other end of closing coil HQ, the other end of time relay 1SJ is all electrically connected with the negative pole-KM of A.C. contactor.
Closed control switch, the action of combined floodgate latching relay, simultaneously start-up time relay, there is combined floodgate latching relay contact to start closing coil, if auxiliary switch for circuit breaker can not correctly switch, after elapsed time relay time delay (delayed setting value is greater than the breaker closing time), normally-closed contact by the time relay replaces auxiliary switch, closing circuit is disconnected, closing relay is returned, just can avoid closing coil to be burnt.
The main technical detail of installing and using according to circuit breaker, the breaker closing time is for being not more than 0.3 s.If the delayed setting value of the time relay approaches very much the closing time of circuit breaker, may make circuit breaker in the time not completing combined floodgate, relay normally-closed contact just disconnects closing circuit, affects the normal combined floodgate of circuit breaker; If the delayed setting value of the time relay is oversize, in operating breaker making process, as the reason because of above-mentioned analysis, just cannot protect closing coil not burnt.
Through ZW32-12 type breaker closing coil is added to electric test, under rated voltage 220V, 500ms left and right coil will burn.
Therefore be, that 400ms is comparatively suitable by the delayed setting value of the time relay.So both ensured that circuit breaker can close a floodgate smoothly, do not burnt out again closing coil.
The coil burnout accident of causing power failure can be stopped substantially, ensures life, the normal electricity consumption of producing, and has both saved manpower, saves again the more funds of exchange device.
Claims (2)
1. with the circuit breaker of the time relay, it is characterized in that: comprise A.C. contactor, light-emitting diode, combined floodgate latching relay, tripping operation latching relay, circuit breaker auxiliary contact, closing coil, protection relay, control switch, the time relay, A.C. contactor positive pole respectively with one end of light-emitting diode, one end of one group of normally-closed contact of combined floodgate latching relay, one end of control switch is electrically connected, the other end of light-emitting diode, the other end of one group of normally-closed contact of combined floodgate latching relay, the other end of control switch is all electrically connected with one end of one group of normally-closed contact of protection relay, one end of one end of one group of normally opened contact of protection relay and tripping operation latching relay is all electrically connected with one end of one group of normally-closed contact of above-mentioned protection relay, the other end of the other end of one group of normally opened contact of protection relay and tripping operation latching relay is all electrically connected with one end of protection relay, the other end of protection relay and A.C. contactor negative pole are electrically connected, the other end of one group of normally-closed contact of protection relay and one end of combined floodgate latching relay are electrically connected, one end of the other end of combined floodgate latching relay and circuit breaker auxiliary contact is electrically connected, one end of one group of normally-closed contact of the other end of circuit breaker auxiliary contact and the time relay is electrically connected, the other end of one group of normally-closed contact of the time relay respectively with one end of closing coil, one end of the time relay is electrically connected, the other end of closing coil, the other end of the time relay is all electrically connected with the negative pole of A.C. contactor.
2. the circuit breaker with the time relay as claimed in claim 1, is characterized in that: the delayed setting value of the described time relay is set to 400ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886187.0U CN203760403U (en) | 2013-12-31 | 2013-12-31 | Circuit breaker with time relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886187.0U CN203760403U (en) | 2013-12-31 | 2013-12-31 | Circuit breaker with time relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203760403U true CN203760403U (en) | 2014-08-06 |
Family
ID=51255647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320886187.0U Expired - Fee Related CN203760403U (en) | 2013-12-31 | 2013-12-31 | Circuit breaker with time relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203760403U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111192778A (en) * | 2020-01-06 | 2020-05-22 | 国网河北省电力有限公司 | Secondary circuit for reducing burning times of closing coil |
| 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 |
-
2013
- 2013-12-31 CN CN201320886187.0U patent/CN203760403U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111192778A (en) * | 2020-01-06 | 2020-05-22 | 国网河北省电力有限公司 | Secondary circuit for reducing burning times of closing coil |
| 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: 20140806 Termination date: 20141231 |
|
| EXPY | Termination of patent right or utility model |