CN201886949U - Strong-current locking device for earth switch of high-voltage switch cabinet - Google Patents
Strong-current locking device for earth switch of high-voltage switch cabinet Download PDFInfo
- Publication number
- CN201886949U CN201886949U CN2010205975679U CN201020597567U CN201886949U CN 201886949 U CN201886949 U CN 201886949U CN 2010205975679 U CN2010205975679 U CN 2010205975679U CN 201020597567 U CN201020597567 U CN 201020597567U CN 201886949 U CN201886949 U CN 201886949U
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- ground connection
- locking device
- connection cutter
- switch cabinet
- electric power
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- 238000001514 detection method Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 12
- 230000000994 depressogenic effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model mainly discloses a strong-current locking device for an earth switch of a high-voltage switch cabinet. The strong-current locking device comprises a live display, a live sensor and an electromagnet. The live sensor is connected with the live display, the electromagnet comprises an electromagnetic coil and a switch button which are in series connection on a high-voltage detection circuit, and the extension of the electromagnet is controlled by means of opening and closing of the electromagnetic coil. The switch cabinet is provided with an earth switch baffle which is provided with a pin hole corresponding to the electromagnet. The strong-current locking device effectively avoids the problem that the earth switch cannot be operated due to failure in opening the earth switch baffle on high-voltage live condition inside the switch cabinet.
Description
Technical field
The utility model relates to the forceful electric power locking device, and is particularly relevant with a kind of high-tension switch cabinet ground connection cutter forceful electric power locking device.
Background technology
In existing distribution technique field, high-tension switch cabinet common design body installing ground connection cutter is realized the cabinet safety ground replacing the external hanging type earthing mode when maintenance, improves overhaul efficiency and ground connection reliability.But, intelligent development along with electrical network, power supply plan variation degree is more and more higher, in the new used equipment and the present situation of depositing, has the counter situation of sending electricity between the switchyard, when some switchgear in the distribution network is in anti-when sending electric supply power mode, if the operational grounding cutter will cause the bus shorted to earth in the usual way, for the accident that reduces charged mistake splice grafting ground as far as possible takes place, guarantee the person and device security, switch cubicle can install the forceful electric power locking device additional.
The implementation of forceful electric power locking has multiple, in order to realize the reliability of locking, and the convenience of taking into account installation and operating, and the economic feasibility of installation cost, the inventor designs this forceful electric power locking device by electric and mode mechanical bond, and, obtain good effect through the operation practice.
The utility model content
The utility model provides a kind of high-tension switch cabinet ground connection cutter forceful electric power locking device, when preventing that effectively the cabinet inner high voltage from having electricity, and mistake splice grafting ground cutter.
To achieve these goals, the technical solution adopted in the utility model is:
High-tension switch cabinet ground connection cutter forceful electric power locking device mainly comprises electrification display, electrified sensor, electromagnet; Electrified sensor is connected with electrification display; Magnet control comprises solenoid and the shift knob that is connected on the high-voltage detecting circuit, and solenoid break-make control electromagnet is flexible; On switch cubicle, have ground connection cutter baffle plate, have the pin-and-hole corresponding on the ground connection cutter baffle plate with electromagnet.
Described ground connection cutter forceful electric power locked loop front end miniature circuit breaker in parallel, external control power supply is as the working power of ground connection cutter forceful electric power locking device.
Described electromagnetic lock relay coil and shift knob are to be connected on the locking output contact branch road of electrification display.
Described ground connection cutter baffle plate has outward extending plectrum.
Described electrification display is installed on the door of switch cabinet.
Described shift knob is installed on the door of switch cabinet.
After adopting such scheme, the utility model disconnects at the locking output contact that height is pressed with electrification display under the electric situation, can cause the solenoid dead electricity, and electromagnet can not break away from the pin-and-hole on the ground connection cutter baffle plate, and plectrum can not be pressed, can't the operational grounding cutter.Do not have at high pressure under the situation of electricity, electrification display locking output contact closure is pressed shift knob and will be made that solenoid powers on, and electromagnet can break away from the pin-and-hole on the ground connection cutter baffle plate, and just can press plectrum this moment, can insert lever operated ground connection cutter.When testing circuit did not have working power, electrification display locking output contact was in normally open, no matter whether high pressure is charged, all can't press plectrum.Locking output contact by electrification display provides barring condition, more can truly reflect charged situation in the cabinet.Prevent effectively that under the situation of electrification in high voltage misoperation ground connection cutter causes serious accident.
Description of drawings
Fig. 1 is the circuit diagram of the utility model preferred embodiment;
Fig. 2 is the structural representation of ground connection cutter baffle plate in the utility model preferred embodiment;
Fig. 3 is that the utility model preferred embodiment is installed in the partial schematic diagram (ground connection cutter retaining is not depressed) on the cabinet;
Fig. 4 is that the utility model preferred embodiment is installed in the partial schematic diagram (ground connection cutter retaining is depressed) on the cabinet.
Embodiment
In conjunction with Fig. 1～Fig. 4, the utility model is described in further details.
As shown in Figure 1, the structure of the utility model preferred embodiment: (1) electrified sensor CGa～c and electrification display GSN three-phase indicator light A～C constitute high pressure and detect the loop.If certain is mutually charged, then light the indicator light of corresponding cabinet door.(2) from the switch cubicle control loop, introduce power supply point ± KM; working power as ground connection cutter forceful electric power locked loop; protect this loop through miniature circuit breaker DZK, the locking output contact K1 of electrification display GSN connects with shift knob JA, solenoid DSN successively, constitutes locked loop.
Electrification display GSN except possessing conventional detection high-voltage signal, also need possess the locking output contact on type selecting.This contact has only when high pressure does not have electricity and working power electricity is arranged just closed; When height was pressed with electricity or working power dead electricity, the contact all disconnected.
The utility model physical structure such as Fig. 2～shown in Figure 4, the handle hole of switch cubicle ground connection cutter generally designs on right side column (switch cubicle of frame structure then is the front end of right plate), and handle hole is blocked up by inner ground connection cutter plate washer 2 at ordinary times.Ground connection cutter plate washer 2 extends outward a plectrum 4, when needs operational grounding cutter, presses plectrum 4 with hand ground connection cutter plate washer 2 is depressed, and inserts operating grip again and operates, extract operating grip after ground connection cutter plate washer 2 will be from horizontal reset.
As pin-and-hole 3, electromagnet 1 is installed on pin-and-hole 3 next doors at ground connection cutter plate washer 2 upper punches one circular hole, under normal conditions, electromagnet 1 inserts pin-and-hole 3, pins ground connection cutter plate washer 2.And the flexible state of electromagnet 1 is to be controlled by shift knob JA, solenoid DSN.
Conduct on solenoid DSN, then electromagnet 1 shrinks, and breaks away from pin-and-hole 3, unlocks.If solenoid DSN dead electricity, then electromagnet 1 discharges, and also promptly is in elongation state, causes breaking away from pin-and-hole 3, and how plectrum 4 is at one's discretion pressed down, all can not mobile ground connection cutter plate washer 2, and the realization locking.
The utility model is in when work, and 1, when control power supply DC220V operate as normal, if height is pressed with, then GSN locking output contact K1 disconnects, when pressing shift knob JA, solenoid DSN is dead electricity still, and uncontrollable electromagnet 1 disengaging pin-and-hole 3 is stirred plectrum 4 can not the operational grounding cutter.2, when control power supply operate as normal, there is not electricity as if high pressure, then GSN locking output contact K1 closure, when pressing shift knob JA, solenoid DSN gets electric, and electromagnet 1 breaks away from pin-and-hole 3, press plectrum 4, ground connection cutter plate washer 2 can be moved down, can insert lever operated ground connection cutter.3, when the control power supply disappeared, no matter whether high pressure is charged, GSN contact K1 all was in off-state, pressing shift knob JA, all can't stir plectrum 4.
The utility model is applicable to the ground connection cutter forceful electric power locking of all kinds of high-tension switch cabinets; when being used to prevent that the cabinet inner high voltage from having electricity; mistake splice grafting ground cutter prevents the generation of the shorted to earth accident that high-tension switch cabinet causes because of mistake splice grafting ground effectively, protects the safety of the person, equipment, electrical network.
Claims (6)
1. high-tension switch cabinet ground connection cutter forceful electric power locking device is characterized in that: comprise electrification display, electrified sensor, electromagnet; Electrified sensor is connected with electrification display; Magnet control comprises solenoid and the shift knob that is connected on the high-voltage detecting circuit, and solenoid break-make control electromagnet is flexible; On switch cubicle, have ground connection cutter baffle plate, have the pin-and-hole corresponding on the ground connection cutter baffle plate with electromagnet.
2. high-tension switch cabinet ground connection cutter forceful electric power locking device as claimed in claim 1 is characterized in that: described ground connection cutter forceful electric power locked loop front end miniature circuit breaker in parallel, external control power supply is as the working power of ground connection cutter forceful electric power locking device.
3. high-tension switch cabinet ground connection cutter forceful electric power locking device as claimed in claim 1 is characterized in that: described solenoid and shift knob are to be connected on the locking output contact branch road of electrification display.
4. high-tension switch cabinet ground connection cutter forceful electric power locking device as claimed in claim 1, it is characterized in that: described ground connection cutter baffle plate has outward extending plectrum.
5. high-tension switch cabinet ground connection cutter forceful electric power locking device as claimed in claim 1, it is characterized in that: described electrification display is installed on the door of switch cabinet.
6. high-tension switch cabinet ground connection cutter forceful electric power locking device as claimed in claim 1, it is characterized in that: described shift knob is installed on the door of switch cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205975679U CN201886949U (en) | 2010-11-02 | 2010-11-02 | Strong-current locking device for earth switch of high-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205975679U CN201886949U (en) | 2010-11-02 | 2010-11-02 | Strong-current locking device for earth switch of high-voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201886949U true CN201886949U (en) | 2011-06-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205975679U Expired - Fee Related CN201886949U (en) | 2010-11-02 | 2010-11-02 | Strong-current locking device for earth switch of high-voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201886949U (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931004A (en) * | 2012-03-22 | 2013-02-13 | 国家电网公司 | Locking device of grounding knife switch of switch cabinet |
| CN103354191A (en) * | 2013-07-02 | 2013-10-16 | 保定鼎阳电力科技发展有限公司 | Device capable of preventing on-load operation of high-voltage isolating switch |
| CN103681082A (en) * | 2013-12-31 | 2014-03-26 | 南车株洲电力机车研究所有限公司 | Grounding switch |
| CN104300374A (en) * | 2014-09-22 | 2015-01-21 | 国家电网公司 | Grounded switch blade anti-misoperation indicating device |
| CN104466902A (en) * | 2014-12-31 | 2015-03-25 | 广州供电局有限公司 | Interlocker preventing mistaken cable electrified switched-on of earth switch for 10 kV switch cabinet |
| CN105207156A (en) * | 2014-06-16 | 2015-12-30 | 南京电力金具设计研究院有限公司 | Protection device for ground wire deicing automatic wiring device |
| CN105552762A (en) * | 2014-07-18 | 2016-05-04 | 国家电网公司 | Cabinet-incoming, electricity-verification and grounding control method for electricity-verification and grounding trolley |
| CN105655908A (en) * | 2014-07-18 | 2016-06-08 | 国家电网公司 | Electrical coming-out method of multifunctional proofing and grounding handcart for centrally installed switchgear |
| CN105655911A (en) * | 2014-07-18 | 2016-06-08 | 国家电网公司 | Multifunctional proofing and grounding handcart for centrally installed switchgear |
| CN105655909A (en) * | 2014-07-18 | 2016-06-08 | 国家电网公司 | Electric coming in and out control method of multifunctional proofing and grounding cart of centrally installed switchgear |
| CN105655910A (en) * | 2014-07-18 | 2016-06-08 | 国家电网公司 | Electricity-testing and grounding circuit of multifunctional electricity-testing and grounding cart with central cabinet |
| CN106783292A (en) * | 2016-12-27 | 2017-05-31 | 浙江阿海珐电气有限公司 | A kind of earthed switch interlock and the ring main unit with it |
| CN108649478A (en) * | 2018-05-08 | 2018-10-12 | 国网天津市电力公司 | 10kV Intelligent switch cabinet anti-misoperation apparatus |
-
2010
- 2010-11-02 CN CN2010205975679U patent/CN201886949U/en not_active Expired - Fee Related
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102931004B (en) * | 2012-03-22 | 2016-04-27 | 国家电网公司 | A kind of switch-cabinet grounding knife-switch locking device |
| CN102931004A (en) * | 2012-03-22 | 2013-02-13 | 国家电网公司 | Locking device of grounding knife switch of switch cabinet |
| CN103354191A (en) * | 2013-07-02 | 2013-10-16 | 保定鼎阳电力科技发展有限公司 | Device capable of preventing on-load operation of high-voltage isolating switch |
| CN103354191B (en) * | 2013-07-02 | 2016-04-13 | 鼎阳电力科技服务有限公司 | A kind of device preventing high voltage isolator on-load operation |
| CN103681082A (en) * | 2013-12-31 | 2014-03-26 | 南车株洲电力机车研究所有限公司 | Grounding switch |
| CN105207156B (en) * | 2014-06-16 | 2017-07-07 | 南京电力金具设计研究院有限公司 | A kind of protection device for ground wire deicing automatic connection device |
| CN105207156A (en) * | 2014-06-16 | 2015-12-30 | 南京电力金具设计研究院有限公司 | Protection device for ground wire deicing automatic wiring device |
| CN105552765A (en) * | 2014-07-18 | 2016-05-04 | 国家电网公司 | Electric cabinet-incoming method for multifunctional electricity-verification and grounding trolley for centrally installed switchgear |
| CN105552763A (en) * | 2014-07-18 | 2016-05-04 | 国家电网公司 | Electric switch-off method for earthing switch of multifunctional electricity-verification and grounding trolley for centrally installed switchgear |
| CN105552768A (en) * | 2014-07-18 | 2016-05-04 | 国家电网公司 | Electricity-verification and grounding operation method for multifunctional electricity-verification and grounding trolley for centrally installed switchgear |
| CN105552769A (en) * | 2014-07-18 | 2016-05-04 | 国家电网公司 | Control circuit for multifunctional electricity-verification and grounding trolley for centrally installed switchgear |
| CN105552762A (en) * | 2014-07-18 | 2016-05-04 | 国家电网公司 | Cabinet-incoming, electricity-verification and grounding control method for electricity-verification and grounding trolley |
| CN105552760A (en) * | 2014-07-18 | 2016-05-04 | 国家电网公司 | Cabinet-in/out control circuit for multifunctional electricity-verification and grounding trolley for centrally installed switchgear |
| CN105576543A (en) * | 2014-07-18 | 2016-05-11 | 国家电网公司 | Electric cabinet-out and earthing switch electric opening control method of electrical-inspection earthing trolley |
| CN105576544A (en) * | 2014-07-18 | 2016-05-11 | 国家电网公司 | Electrical-inspection earthing and earthing switch electric opening control method of electrical-inspection earthing trolley |
| CN105655908A (en) * | 2014-07-18 | 2016-06-08 | 国家电网公司 | Electrical coming-out method of multifunctional proofing and grounding handcart for centrally installed switchgear |
| CN105655911A (en) * | 2014-07-18 | 2016-06-08 | 国家电网公司 | Multifunctional proofing and grounding handcart for centrally installed switchgear |
| CN105655909A (en) * | 2014-07-18 | 2016-06-08 | 国家电网公司 | Electric coming in and out control method of multifunctional proofing and grounding cart of centrally installed switchgear |
| CN105655910A (en) * | 2014-07-18 | 2016-06-08 | 国家电网公司 | Electricity-testing and grounding circuit of multifunctional electricity-testing and grounding cart with central cabinet |
| CN104300374A (en) * | 2014-09-22 | 2015-01-21 | 国家电网公司 | Grounded switch blade anti-misoperation indicating device |
| CN104466902A (en) * | 2014-12-31 | 2015-03-25 | 广州供电局有限公司 | Interlocker preventing mistaken cable electrified switched-on of earth switch for 10 kV switch cabinet |
| CN104466902B (en) * | 2014-12-31 | 2018-04-17 | 广州供电局有限公司 | The powered splice grafting earthing knife-switch interlocker by mistake of 10kV switchgears prevention cable |
| CN106783292A (en) * | 2016-12-27 | 2017-05-31 | 浙江阿海珐电气有限公司 | A kind of earthed switch interlock and the ring main unit with it |
| CN108649478A (en) * | 2018-05-08 | 2018-10-12 | 国网天津市电力公司 | 10kV Intelligent switch cabinet anti-misoperation apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: XIANMEN ELECTRIC POWER COMPLETE PLANT CO., LTD. Effective date: 20141210 Owner name: STATE GRID FUJIAN ELECTRIC POWER CO., LTD. STATE G Effective date: 20141210 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 361000 XIAMEN, FUJIAN PROVINCE TO: 100031 DONGCHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141210 Address after: 100031 West Chang'an Avenue, Beijing, No. 86 Patentee after: State Grid Corporation of China Patentee after: State Grid Fujian Electric Power Co., Ltd. Patentee after: XIAMEN ELECTRIC POWER SUPPLY COMPANY OF STATE GRID FUJIAN ELECTRIC POWER CO. LTD. Patentee after: Xiamen Electric Power Complete Sets of Equipment Co., Ltd. Address before: 361000 Fujian province Xiamen City Siming District Lingdou Road No. 189 Patentee before: Xiamen Electric Power Complete Sets of Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20151102 |
|
| EXPY | Termination of patent right or utility model |