CN204303670U - The energy storage motor control device of middle pressure vacuum circuit breaker - Google Patents
The energy storage motor control device of middle pressure vacuum circuit breaker Download PDFInfo
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- CN204303670U CN204303670U CN201420772130.2U CN201420772130U CN204303670U CN 204303670 U CN204303670 U CN 204303670U CN 201420772130 U CN201420772130 U CN 201420772130U CN 204303670 U CN204303670 U CN 204303670U
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Abstract
The utility model relates to the vacuum circuit breaker used in main equipment, a kind of energy storage motor control device of middle pressure vacuum circuit breaker is proposed, it includes the first air switch, second air switch, first travel switch and motor access termination, first travel switch is ganged switch, first air switch and the second air switch are accessed termination with motor and are connected in series by the first travel switch respectively, one end of first air switch connects to breaker closing bus positive pole, one end of second air switch connects to breaker closing bus negative pole, also include the second travel switch and the time relay, described second travel switch is serially connected with between the first travel switch and motor access termination, it is in parallel that the time relay and motor access termination, the time relay has the time delay breaking-off contact as the second travel switch.The utility model effectively can control operation and the shutdown of energy storage motor, avoid energy storage motor because of gear wear cause energy storage after the problem that can not shut down in time.
Description
Technical field
The utility model relates to the vacuum circuit breaker used in main equipment, specifically for the control device of the energy storage motor of vacuum circuit breaker.
Background technology
Current 10KV Medium Voltage Switchgear generally uses vacuum circuit breaker, and the separating brake of high-voltage switch like this just needs certain external force to realize with combined floodgate, and energy storage motor is exactly the medium producing this external force.The energy storage motor control device of existing middle pressure vacuum circuit breaker, as shown in Figure 1, it includes the first air switch Q1, second air switch Q2, first stroke switch S 1 and motor access termination M, one end of first air switch Q1 connects to breaker closing bus HM positive pole, one end of second air switch Q2 connects to breaker closing bus HM negative pole, first stroke switch S 1 is ganged switch, first air switch Q1 and the second air switch Q2 is accessed termination M with motor and is connected in series by the first stroke switch S 1 respectively, the plant-grid connection motor access termination M of energy storage motor, when after the first air switch Q1 and the second air switch Q2 adhesive, energy storage motor obtain electric after start rotate, the running of the gear drive stored energy mechanism (stored energy mechanism is some position-limit mechanisms and brute spring mainly) of energy storage motor output shaft, after usual 15S, stored energy mechanism touches the first stroke switch S 1, first stroke switch S 1 is disconnected, energy storage motor dead electricity, energy storage terminates, for vacuum circuit breaker divide-shut brake provides energy, and along with the separating brake of switch and the storage repeatedly of closing a floodgate, release energy.The weak point of existing this vacuum circuit breaker is: after longtime running, skidding is there is in the gear on energy storage motor output shaft because of wearing and tearing, stored energy mechanism cannot be arrived suitable spacing, the power supply of energy storage motor is caused to cut off, energy storage motor runs always and causes heating, after reaching uniform temperature, cause electrical fire.Therefore, be necessary to improve.
Summary of the invention
The purpose of this utility model is the energy storage motor control device proposing a kind of middle pressure vacuum circuit breaker, and it effectively can control operation and the shutdown of energy storage motor, avoid energy storage motor because of fault cause energy storage after the problem that can not shut down in time.
The purpose of this utility model realizes by following technical scheme:
The energy storage motor control device of middle pressure vacuum circuit breaker, it includes the first air switch, second air switch, first travel switch and motor access termination, first travel switch is ganged switch, first air switch and the second air switch are accessed termination with motor and are connected in series by the first travel switch respectively, one end of first air switch connects to breaker closing bus positive pole, one end of second air switch connects to breaker closing bus negative pole, especially: also include the second travel switch and the time relay, described second travel switch is serially connected with between the first travel switch and motor access termination, it is in parallel that the described time relay and motor access termination, the time relay has time delay breaking-off contact, the time delay breaking-off contact of the time relay is as the second travel switch.
During use, be installed on middle pressure vacuum circuit breaker by of the present utility model, the time delay of the time relay is set as 20 ~ 40 seconds turn-off time, the power line access motor access termination of the energy storage motor of middle pressure vacuum circuit breaker, when energy storage is carried out in energy storage motor energising operation, under normal circumstances, energy storage motor runs pressure vacuum circuit breaker in after 15S and makes the first travel switch disconnection, energy storage motor dead electricity is out of service, and energy storage terminates; When pressing vacuum circuit breaker that the first travel switch cannot be made to disconnect during system is because of equipment fault; second travel switch of the present utility model plays a role: after continuous service 20 ~ 40S; the time delay breaking-off contact of the time relay disconnects (namely the second travel switch disconnects); cut off energy storage motor power supply; shut down in time after guaranteeing energy storage motor energy storage, reach the object of safety in production.
The utility model has following substantive distinguishing features and progress: the utility model effectively can control operation and the shutdown of energy storage motor; solve energy storage motor because of fault cause energy storage after the problem that can not shut down in time, avoid energy storage motor long-play generation electrical fire.
Accompanying drawing explanation
Fig. 1 is the structural representation of the energy storage motor control device of existing middle pressure vacuum circuit breaker.
Fig. 2 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
With reference to figure 2, a kind of energy storage motor control device of middle pressure vacuum circuit breaker, it includes the first air switch Q1, the second air switch Q2, the first stroke switch S 1, motor access termination M, the second travel switch S2 and time relay KT, described first stroke switch S 1 is ganged switch, and the first air switch Q1 and the second air switch Q2 is accessed termination M with motor and is connected in series by the first stroke switch S 1 respectively; One end of first air switch Q1 connects to breaker closing bus HM positive pole, and one end of the second air switch Q2 connects to breaker closing bus HM negative pole.
Described second travel switch S2 is serially connected with between the first stroke switch S 1 and motor access termination M, it is in parallel that described time relay KT and motor access termination M, time relay KT has time delay breaking-off contact KT ', and the time delay breaking-off contact KT ' of time relay KT is as the second travel switch S2.
The utility model is installed on middle pressure vacuum circuit breaker, the time delay of time relay KT is set as 30 seconds turn-off time, the power line access motor access termination M of the energy storage motor of middle pressure vacuum circuit breaker.
During use, first air switch Q1 and the second air switch Q2 is connected, time relay KT energising makes time delay breaking-off contact KT ' close, energy storage is carried out in energy storage motor energising operation, under normal circumstances, energy storage motor runs pressure vacuum circuit breaker in after 15S makes the first stroke switch S 1 disconnect, and energy storage motor dead electricity is out of service, and energy storage terminates; When pressing vacuum circuit breaker that the first stroke switch S 1 cannot be made to disconnect during system is because of equipment fault; second travel switch S2 of the present utility model plays a role: after energy storage motor continuous service 30S; the time delay breaking-off contact KT ' of time relay KT disconnects (the second travel switch S2 disconnects); make energy storage motor power-off out of service; so just, shut down in time after guaranteeing energy storage motor energy storage; avoid long-play to cause electrical fire, reach the object of safety in production.
Claims (1)
1. in, press the energy storage motor control device of vacuum circuit breaker, it includes the first air switch (Q1), second air switch (Q2), first travel switch (S1) and motor access termination (M), first travel switch (S1) is ganged switch, first air switch (Q1) and the second air switch (Q2) are accessed termination (M) with motor and are connected in series by the first travel switch (S1) respectively, one end of first air switch (Q1) connects to breaker closing bus (HM) positive pole, one end of second air switch (Q2) connects to breaker closing bus (HM) negative pole, it is characterized in that: also include the second travel switch (S2) and the time relay (KT), described second travel switch (S2) is serially connected with between the first travel switch (S1) and motor access termination (M), it is in parallel that the described time relay (KT) and motor access termination (M), the time relay (KT) has time delay breaking-off contact (KT '), the time delay breaking-off contact of the time relay (KT) (KT ') as the second travel switch (S2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420772130.2U CN204303670U (en) | 2014-12-10 | 2014-12-10 | The energy storage motor control device of middle pressure vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420772130.2U CN204303670U (en) | 2014-12-10 | 2014-12-10 | The energy storage motor control device of middle pressure vacuum circuit breaker |
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| CN204303670U true CN204303670U (en) | 2015-04-29 |
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| CN201420772130.2U Active CN204303670U (en) | 2014-12-10 | 2014-12-10 | The energy storage motor control device of middle pressure vacuum circuit breaker |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106486301A (en) * | 2016-10-31 | 2017-03-08 | 中国南方电网有限责任公司超高压输电公司贵阳局 | A kind of energy storage control loop of follow-on hydraulic spring grease cup chopper |
| CN107086538A (en) * | 2017-06-07 | 2017-08-22 | 国网安徽省电力公司安庆供电公司 | A kind of energy storage motor control loop of self-energy sulfur hexafluoride circuit breaker |
-
2014
- 2014-12-10 CN CN201420772130.2U patent/CN204303670U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106486301A (en) * | 2016-10-31 | 2017-03-08 | 中国南方电网有限责任公司超高压输电公司贵阳局 | A kind of energy storage control loop of follow-on hydraulic spring grease cup chopper |
| CN107086538A (en) * | 2017-06-07 | 2017-08-22 | 国网安徽省电力公司安庆供电公司 | A kind of energy storage motor control loop of self-energy sulfur hexafluoride circuit breaker |
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| C14 | Grant of patent or utility model | ||
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