CN204905178U - Circuit breaker with permanent magnetic mechanism's under -voltage trip gear - Google Patents
Circuit breaker with permanent magnetic mechanism's under -voltage trip gear Download PDFInfo
- Publication number
- CN204905178U CN204905178U CN201520535075.XU CN201520535075U CN204905178U CN 204905178 U CN204905178 U CN 204905178U CN 201520535075 U CN201520535075 U CN 201520535075U CN 204905178 U CN204905178 U CN 204905178U
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- Prior art keywords
- power supply
- electrochemical capacitor
- diode
- circuit
- voltage relay
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- Withdrawn - After Issue
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model provides a circuit breaker with permanent magnetic mechanism's under -voltage trip gear, its principle is: control source U gives the electrolytic capacitor C energy storage through current -limiting resistor R1, the electrolytic capacitor C size is confirmed according to permanent magnetic mechanism YR action needs energy of electromagnetic field size, cross lowly or break as control source U, diode D1 -D3 prevents electrolytic capacitor C reverse for the control circuit power transmission in the tank circuit, the voltage relay KA who adopts coil voltage to adjust detects control source U's height, when being less than the setting value, voltage relay KA starts the work, normally open and a little cut off the outside electric return circuit of giving rapidly, prevent that energy -storage capacitor C is for the anti - power transmission of control circuit, separating brake vacuum circuit breaker is removed for permanent magnetic mechanism YR circular telegram production electromagnetic field to the time delay of normal close point, voltage relay KA delayed purpose prevents that the control source fluctuates in short -term and arouses the operation of mistake separating brake. The utility model discloses can make the permanent magnetism circuit breaker not have reliable separating brake under the condition of operating power in the external world.
Description
Technical field
The utility model relates to technical field of power systems, particularly a kind of undervoltage tripping device of permanent magnet mechanism circuit-breaker.
Background technology
Under voltage relay or release refer to when the terminal voltage of relay or release is down to predetermined value, make mechanical switch electrical equipment have time delay or disconnect without time delay or closed relay or release.Under voltage relay or release and device for switching are combined, and when applied voltage declines, even slowly drop in 70% to 35% scope of rated voltage, action answered by the under voltage relay together with combining with device for switching and release, and electrical equipment is disconnected.
12kv vacuum circuit breaker operating mechanism has spring and permanent magnetism two kinds of forms.Wherein, spring operating mechanism removes on/off switch vacuum interrupter by release energy-stored spring, and have energy-storage travelling wave tube, trip gear is realized by mechanical bearing pin; Permanent-magnet operating mechanism has superposed vacuum interrupter in the same way by electromagnetic field and the magnetic field moment of rubidium iron boron magnetic patch to close a floodgate, and moment oppositely completes separating brake action, without energy-storage travelling wave tube, cannot provide energy of electromagnetic field
Utility model content
Because described in background technology, be necessary to provide a kind of can effectively improve interlock between circuit breaker and isolating switch reliability, fail safe, the novel high voltage isolator of validity and the interlock of circuit breaker.
The utility model is achieved through the following technical solutions:
A undervoltage tripping device for permanent magnet mechanism circuit-breaker, it comprises: control power supply U, the voltage relay KA for the height of detection control power supply U, current-limiting resistance R1, electrochemical capacitor C, diode D1, D2, D3;
The one pole series diode D1 of described electrochemical capacitor C, current-limiting resistance R1, another pole series diode D2, composition electrochemical capacitor series circuit, this electrochemical capacitor series circuit is in parallel with the common port of control power supply U, a voltage relay KA; The negative pole of described diode D3 is connected with permanent magnet mechanism, and positive pole is connected with circuit breaker; The Chang Kaiduan of voltage relay KA and normal-closed end are series at the two ends of permanent magnet mechanism respectively, this series circuit and described electrochemical capacitor C parallel connection; Control power supply U through current-limiting resistance R1 to electrochemical capacitor C energy storage, when controlling power supply U brownout or breaking, diode D1, D2, D3 stop electrochemical capacitor C oppositely to exporting the power distribution cabinet control loop power transmission controlling power supply U, when controlling power supply U lower than setting value, voltage relay KA starts work, normal battle, rapid cutting-off controlling power supply U, prevented storage capacitor C to the anti-power transmission of described power distribution cabinet control loop, and normally closed some time delay to generate an electromagnetic field circuit breaker described in separating brake to permanent magnet mechanism energising.
The object of described voltage relay KA time delay prevents from controlling power supply short-time fluctuations and causing sub-switching operation by mistake.
Electrochemical capacitor C size needs energy of electromagnetic field size to determine according to permanent magnet mechanism YR action.
Relative to prior art, the utility model can solve permanent-magnet breaker reliable separating brake when the external world does not have operating power effectively, can not to misdeliver when system automatic recovery of power supply like this electricity and security incident occurs, especially must first confirm during high-voltage motor power transmission motor not with carry or underloading when could power transmission, otherwise can security incident be there is.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the utility model embodiment.
Specific embodiments
Below in conjunction with drawings and Examples, the utility model specific embodiments is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
The present embodiment provides a kind of undervoltage tripping device of permanent magnet mechanism circuit-breaker, and as shown in Figure 1, it comprises: control power supply U, the voltage relay KA for the height of detection control power supply U, current-limiting resistance R1, electrochemical capacitor C, diode D1, D2, D3.
The one pole series diode D1 of described electrochemical capacitor C, current-limiting resistance R1, another pole series diode D2, D1 with D2 direction is identical, composition electrochemical capacitor series circuit, and this electrochemical capacitor series circuit is in parallel with the common port of control power supply U, voltage relay KA; The negative pole of described diode D3 is connected with permanent magnet mechanism YR, and positive pole is connected with circuit breaker Q F; The Chang Kaiduan of described voltage relay KA and normal-closed end are series at the two ends of permanent magnet mechanism YR respectively, this series circuit and described electrochemical capacitor C parallel connection; Control power supply U through current-limiting resistance R1 to electrochemical capacitor C energy storage, when controlling power supply U brownout or breaking, diode D1, D2, D3 stop electrochemical capacitor C oppositely to exporting the power distribution cabinet control loop power transmission controlling power supply U, when controlling power supply U lower than setting value, voltage relay KA starts work, normal battle, rapid cutting-off controlling power supply U, prevented storage capacitor C to the anti-power transmission of described power distribution cabinet control loop, and normally closed some time delay to generate an electromagnetic field circuit breaker Q F described in separating brake to permanent magnet mechanism YR energising.
Concrete, the positive pole of diode D1 is connected with described control power supply U, and its negative pole is connected with described current-limiting resistance R1; The positive pole of diode D2 connects described electrochemical capacitor C, and negative pole connects described control power supply U.
Electrochemical capacitor C size needs energy of electromagnetic field size to determine according to permanent magnet mechanism YR action.
In Fig. 1, CZ is socket everywhere.
The above is only the utility model preferred implementation; should be understood that for those skilled in the art; under the prerequisite not departing from the utility model know-why, can also carry out some improvement and modification, these improve and modification also should be considered as the utility model protection range.
Claims (2)
1. a undervoltage tripping device for permanent magnet mechanism circuit-breaker, is characterized in that: comprising: control power supply U, the voltage relay KA for the height of detection control power supply U, current-limiting resistance R1, electrochemical capacitor C, diode D1, D2, D3;
The one pole series diode D1 of described electrochemical capacitor C, current-limiting resistance R1, another pole series diode D2, D1 with D2 direction is identical, composition electrochemical capacitor series circuit, and this electrochemical capacitor series circuit is in parallel with the common port of control power supply U, a voltage relay KA; The negative pole of described diode D3 is connected with permanent magnet mechanism, and positive pole is connected with circuit breaker; The Chang Kaiduan of voltage relay KA and normal-closed end are series at the two ends of permanent magnet mechanism respectively, this series circuit and described electrochemical capacitor C parallel connection; Control power supply U through current-limiting resistance R1 to electrochemical capacitor C energy storage, when controlling power supply U brownout or breaking, diode D1, D2, D3 stop electrochemical capacitor C oppositely to exporting the power distribution cabinet control loop power transmission controlling power supply U, when controlling power supply U lower than setting value, voltage relay KA starts work, normal battle, rapid cutting-off controlling power supply U, prevented storage capacitor C to the anti-power transmission of described power distribution cabinet control loop, and normally closed some time delay to generate an electromagnetic field circuit breaker described in separating brake to permanent magnet mechanism energising.
2. the undervoltage tripping device of permanent magnet mechanism circuit-breaker according to claim 1, is characterized in that: the positive pole of diode D1 is connected with described control power supply U, and its negative pole is connected with described current-limiting resistance R1; The positive pole of diode D2 connects described electrochemical capacitor C, and negative pole connects described control power supply U.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520535075.XU CN204905178U (en) | 2015-07-22 | 2015-07-22 | Circuit breaker with permanent magnetic mechanism's under -voltage trip gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520535075.XU CN204905178U (en) | 2015-07-22 | 2015-07-22 | Circuit breaker with permanent magnetic mechanism's under -voltage trip gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204905178U true CN204905178U (en) | 2015-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520535075.XU Withdrawn - After Issue CN204905178U (en) | 2015-07-22 | 2015-07-22 | Circuit breaker with permanent magnetic mechanism's under -voltage trip gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204905178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104992887A (en) * | 2015-07-22 | 2015-10-21 | 吉林瀚丰电气有限公司 | Under-voltage tripping device for permanent magnetic actuator circuit breakers |
-
2015
- 2015-07-22 CN CN201520535075.XU patent/CN204905178U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104992887A (en) * | 2015-07-22 | 2015-10-21 | 吉林瀚丰电气有限公司 | Under-voltage tripping device for permanent magnetic actuator circuit breakers |
| CN104992887B (en) * | 2015-07-22 | 2017-10-03 | 吉林瀚丰电气有限公司 | A kind of undervoltage tripping device of permanent magnet mechanism circuit-breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151223 Effective date of abandoning: 20171003 |
|
| AV01 | Patent right actively abandoned |