CN201097433Y - A middle-voltage metal closed switch device - Google Patents

A middle-voltage metal closed switch device Download PDF

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Publication number
CN201097433Y
CN201097433Y CNU2007201461886U2007201461886U CN200720146188U CN201097433Y CN 201097433 Y CN201097433 Y CN 201097433Y CN U2007201461886U2007201461886 U CNU2007201461886U2007201461886 U CN U2007201461886U2007201461886U CN 200720146188 U CN200720146188 U CN 200720146188U CN 201097433 Y CN201097433 Y CN 201097433Y
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CN
China
Prior art keywords
gas tank
breaker
vacuum circuit
chamber
bus
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
Application number
CNU2007201461886U2007201461886U
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Chinese (zh)
Inventor
吴键
潘延虹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beihai Yinhe High Science and Technology Industry Co Ltd
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Beihai Yinhe High Science and Technology Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
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Application filed by Beihai Yinhe High Science and Technology Industry Co Ltd filed Critical Beihai Yinhe High Science and Technology Industry Co Ltd
Priority to CNU2007201461886U2007201461886U priority Critical patent/CN201097433Y/en
Application granted granted Critical
Publication of CN201097433Y publication Critical patent/CN201097433Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

Disclosed is a medium-voltage metal closed switch apparatus, comprising a cabinet body. The medium-voltage metal closed switch apparatus is characterized in that the cabinet body is divided into an air-box chamber, a circuit breaker chamber, a cable chamber and a control chamber; the circuit breaker chamber is provided with a vacuum circuit breaker handcart which can make horizontal movement and fix the vacuum circuit breaker; up and down contacting arms of the vacuum circuit breaker can be respectively inserted into or detached from jacks in plug boxes of a bus-line air box and a feeder-line chamber air box. With small occupied space, strong insulation capability and convenient operation, the medium-voltage metal closed switch apparatus meets the operating habits of most operators, improves the safety performance and can be widely used for three-phase AC power transmission and distribution systems of 7.2 to 12 KV, 50 HZ.

Description

Press metal enclosed switchgear in a kind of
One. technical field
The utility model relates to a kind of three-phase alternating current 7.2～12kV, 50Hz electrical power trans mission/distribution system of being used for to accept or to distribute electric energy and can carry out the pressure metal enclosed switchgear of functions such as control, protection, detection to the normal operation of electric power system and failure condition down.
Two. background technology
At present, the existing middle metal enclosed switchgear of pressing is divided into two big classes: air insulation metal enclosed switchgear and Cubicle Gas-Insulated Switchgear; Wherein the air insulation metal enclosed switchgear is most widely used.But the air insulation switchgear has two significant disadvantages: the one, and floor space is bigger; The 2nd, owing in the exposed air of high voltage device, be vulnerable to surrounding environment influence, be not suitable for the abominable place of environment.Cubicle Gas-Insulated Switchgear (be called for short C-GIS) is the nineties complete power distribution equipment of the new development new and high technology of getting up in the world, with vacuum circuit-breaker, three-positions disconnector, current/voltage transducer high pressure elements such as (or instrument transformers) and between bonding conductor be loaded on each function plenum chamber respectively or collection is loaded in the box aeration vessel, realize the turnover line by the socket aperture of reserving on the cabinet by the plug-in type cable termination; Represent the developing direction and the advanced international standard of medium voltage switchgear equipment of new generation, pressing an important branch of metal enclosed switchgear in becoming gradually, having the little and strong characteristics of insulation property of floor space; Be particularly suitable for environment such as underground, plateau, frozen soil, coastal, humidity, the place of densely inhabited district and construction area costliness.But the version of domestic and international existing Cubicle Gas-Insulated Switchgear is fixed cabinet body structure, does not have the withdraw-type structure; And Cubicle Gas-Insulated Switchgear does not have the line side earthed switch, operation has increased operating procedure to interruption maintenance, and in all high voltage devices, having only vacuum circuit-breaker is frequent operation, compare other high voltage devices, situation relatively easily breaks down.Because vacuum circuit-breaker is fixedly mounted in the sealing gas tank, as breaks down, and can't in time change, the equipment that influences normally moves.
Three. summary of the invention
The purpose of this utility model is to manufacture and design a kind of middle pressure metal enclosed switchgear, seals in the gas tank owing to vacuum circuit-breaker is fixedly mounted on to overcome the current widely used middle metal enclosed switchgear of pressing, thereby causes the shortcoming that maintenance is inconvenient.
The purpose of this utility model reaches like this: press metal enclosed switchgear in a kind of, comprise cabinet, of the present utility model being characterised in that: described cabinet is separated into gas tank chamber 14, breaker chamber 21, cable vault 28 and control room 15, described breaker chamber 21 is provided with the transversely movable vacuum circuit-breaker handcart 22 that is fixed with vacuum circuit-breaker 29, and the contact arm up and down of vacuum circuit-breaker 29 can insert or break away from the socket in the contact box 9 of bus gas tank 7 and feeder line chamber gas tank 10 respectively.Cabinet is provided with pressure relief device 1; be provided with bus gas tank 7 and feeder line gas tank 10 in the gas tank chamber 14; bus gas tank 7 is equipped with main bus bar 5; branch bus 6; contact box 9; bus Connection Block 4; seal cover board 8; gas tank inflation and pressure detecting valve 3; rush down and press mouth 2; earthed switch 11 is housed in the feeder line gas tank 10; branch bus 6; contact box 9; built-in current/voltage transducer 13; outer cone cable socket 12; sealing flange 24; seal cover board 8; gas tank inflation and pressure detecting valve 3; rush down and press mouth 2; can be installed into the outlet cable in the cable vault 28; external current transformer 27; plug-in type lightning arrester 25; control room 15 is provided with installs the protection control unit; breaker chamber 21 is provided with the transversely movable vacuum circuit-breaker handcart 22 that is fixed with vacuum circuit-breaker 29, and the contact arm up and down of vacuum circuit-breaker 29 can insert or break away from the socket in the contact box 9 of bus gas tank 7 and feeder line gas tank 10 respectively.Gas tank adopts SF 6Gas-insulated, vacuum circuit-breaker 29 adopts gas-insulated, two kinds of insulation modes of solid insulation to use simultaneously.The contact arm up and down of vacuum circuit-breaker 29 is equipped with silicone rubber seal 20, and vacuum circuit-breaker 29 can seal contact box 9 when the service position.Sealing valve 17 is equipped with seal, can seal contact box 9 when vacuum circuit-breaker handcart 22 shakes out to test position.Shake by vacuum circuit-breaker handcart 22 and to proceed to the service position or shake out, be switched on or switched off bus gas tank 7 and feeder line gas tank 10, tangible primary circuit fracture is arranged to test position.
Take the utility model floor space of above measure little, insulation property are strong, and are easy to operate, meet most of operators' operating habit, improved security performance, can be widely used in three-phase alternating current 7.2～12kV, 50Hz electrical power trans mission/distribution system.
Four. description of drawings
Accompanying drawing 1 is the service position structural representation of the utility model (embodiment);
Accompanying drawing 2 is test position structural representations of the utility model (embodiment).
In the above-mentioned accompanying drawing: 1. rush down pressure device, 2. pressure relief opening, 3. gas tank inflation and pressure detecting valve; 4. bus Connection Block, 5. main bus bar, 6. branch bus; 7. bus gas tank, 8. seal cover board, 9. contact box; 10. feeder line gas tank, 11. earthed switches, 12. outer cone cable sockets; 13. built-in current/voltage transducer, gas tank chambers 14., 15. control rooms; 16. protection control unit; 17. the sealing valve, 18. Secondary sockets, 19. secondary plugs; 20. silicone rubber seal; 21. breaker chamber, 22. vacuum circuit-breaker handcarts, 23. earthed switch operating mechanisms; 24. sealing flange; 25. the plug-in type lightning arrester, 26. turnover line cables, 27. external current transformers; 28. the cable vault, 29. vacuum circuit-breakers.
Below the utility model is described in further detail in conjunction with the accompanying drawings and embodiments again.
Five. embodiment
Accompanying drawing 1 has provided the service position structural representation of the utility model embodiment.The utility model is that the middle pressure metal enclosed switchgear that traditional vacuum circuit-breaker is fixedly mounted in the sealing gas tank is improved, and has adopted mid-withdraw-type cabinet body structure.Cabinet is separated into gas tank chamber 14, breaker chamber 21, cable vault 28 and control room 15, breaker chamber 21 is provided with the transversely movable vacuum circuit-breaker handcart 22 that is fixed with vacuum circuit-breaker 29, and the contact arm up and down of vacuum circuit-breaker 29 can insert or break away from the socket in the contact box 9 of bus gas tank 7 and feeder line gas tank 10 respectively.
The utility model is divided into cabinet, gas tank and vacuum circuit-breaker handcart three parts.The cabinet employing is covered the aluminium zine plate and is assembled, and is separated into breaker chamber 21, gas tank chamber 14, cable vault 28 and control room 15, and the cabinet top is provided with pressure relief device 1.Breaker chamber 21 is provided with vacuum circuit-breaker handcart 22, sealing valve 17, Secondary socket 18.Be provided with 10 two gas tanks of bus gas tank 7 and feeder line gas tank in the gas tank chamber 14, bus gas tank 7 is equipped with main bus bar 5, branch bus 6, contact box 9, bus Connection Block 4, seal cover board 8, gas tank inflation and pressure detecting valve 3, pressure relief opening 2, and feeder line gas tank 10 is equipped with earthed switch 11, branch bus 6, contact box 9, built-in current/voltage transducer 13, outer cone cable socket 12, sealing flange 24, seal cover board 8, gas tank inflation and pressure detecting valve 3, pressure relief opening 2.Can be installed into outlet cable 26, external current transformer 27, plug-in type lightning arrester 25 and earthed switch operating mechanism 23 in the cable vault 28.Control room 15 is used for installing protection control unit 16.It is to cooperate with bus Connection Block 4 by the solid insulation bus tie to finish that main bus bar between each gas tank connects; the turnover line is to cooperate with turnover line cable 26 by the outer cone cable socket 12 that feeder line gas tank 10 is reserved to finish, and the secondary control section of vacuum circuit-breaker handcart 22 is to cooperate with Secondary socket 18 by secondary plug 19 to finish with being connected of control unit 16 of protection.
The contact arm up and down of vacuum circuit-breaker handcart 22 is equipped with silicone rubber seal 20, and vacuum circuit-breaker 29 can seal contact box 9 when the service position.Sealing valve 17 is equipped with seal, can seal contact box 9 when vacuum circuit-breaker handcart 22 shakes out to test position.
Accompanying drawing 2 has provided the test position structural representation of the utility model embodiment.By vacuum circuit-breaker handcart 22 vacuum circuit-breaker 29 is shaken and to proceed to the service position or shake out, be switched on or switched off bus gas tank 7 and feeder line gas tank 10, tangible primary circuit fracture is arranged to test position.Gas tank adopts corrosion resistant plate sealing square chest pattern block structure, and gas tank fills low pressure SF 6(sulphur hexafluoride) gas is made dielectric.Contact box 9, bus Connection Block 4, outer cone cable socket 12, sealing flange 24, seal cover board 8 all have reliable sealing function, guarantee that gas tank is air tight.Vacuum circuit-breaker 29 adopts the solid insulation technology, with vacuum interrupter and outlet terminal poured with epoxy resin moulding up and down, can prevent effectively that vacuum interrupter is subjected to the influence of external environment and the pollution of air.Adopt gas-insulated, two kinds of insulation modes of solid insulation to use simultaneously, improved insulation property, therefore can reduce the high voltage device size, make and the cabinet miniaturization reduce floor space.The contact arm up and down of vacuum circuit-breaker 29 is equipped with silicone rubber seal 20, and vacuum circuit-breaker handcart 22 can seal contact box 9 when the service position.The utility model uses conventional sealing valve 17, and adds seal is installed, and can seal contact box 9 when vacuum circuit-breaker handcart 22 shakes out to test position.So no matter vacuum circuit-breaker handcart 22 is in the service position or test position or pull out outside the cabinet and overhaul, and contact box 9 all can be sealed, and fixed contact and external isolation are not subjected to ectocine.Because of the current-carrying part of major loop is in sealing state, so entire equipment is environment resistant good, be not subjected to the influence of external environment, influence as condensation, filth, height above sea level, chemical substance, toy etc., can use in the abominable place of environment, equipment can long-term safety be moved, have high reliability, do not have the danger of electric shock and fire.The other parts of switch cubicle still place atmosphere as the outer secondary circuit of control and protected location, air chamber, cable vault 28, pressure release passage etc., are convenient to monitor and safeguard.Vacuum circuit-breaker handcart 22 can close the turnover of Over-The-Counter door operation after entering test position, and vacuum circuit-breaker handcart 22 is provided with the sealing valve it is separated when test position between the dynamic and static contact.Need remove outside the cabinet when vacuum circuit breaker cart 22 and to overhaul, when safeguarding, to utilize special use to pass on car and can pull out maintenance, easy to maintenance easily.The vacuum circuit-breaker handcart 22 of embodiment is that the feed screw nut on the chassis car that is mounted in the breaker chamber 21 advances, withdraws from, flexible operation is light, self-locking by the feed screw nut can make handcart be locked in the service position reliably, prevents to break down because of electrodynamic effect causes play.Shake by vacuum circuit-breaker handcart 22 and to proceed to the service position or shake out, be switched on or switched off bus gas tank 7 and feeder line gas tank 10, tangible primary circuit fracture is arranged to test position.Operational design between vacuum circuit-breaker handcart 22, earthed switch 11 and the sealing valve 17 has mandatory mechanical latching, satisfies " five is anti-" function, reaches the purpose that improves security performance.Because sealing valve 17 can seal contact box when vacuum circuit-breaker handcart 22 shakes out to test position, so cabinet degree of protection when opening the door reaches IP4X, improved fail safe.
The utility model is improved on traditional middle pressure metal enclosed switchgear, all related electric accessories can purchased on the market, the silicone rubber seal 20 that the contact arm up and down of vacuum circuit-breaker 29 is equipped with, can be according to the silicon rubber manufacturing of contact arm up and down of vacuum circuit-breaker 29, the seal that sealing valve 17 is installed also can be made with silicon rubber according to sealing valve 17 corresponding positions.

Claims (6)

1. press metal enclosed switchgear in one kind, comprise cabinet, of the present utility model being characterised in that: described cabinet is separated into gas tank chamber (14), breaker chamber (21), cable vault (28) and control room (15), described breaker chamber (21) is provided with the transversely movable vacuum circuit-breaker handcart (22) that is fixed with vacuum circuit-breaker (29), and the contact arm up and down of vacuum circuit-breaker (29) can insert or break away from the socket in the contact box (9) of bus gas tank (7) and feeder line chamber gas tank (10) respectively.
2. press metal enclosed switchgear in according to claim 1, it is characterized in that: cabinet is provided with pressure relief device (1), be provided with bus gas tank (7) and feeder line gas tank (10) in the gas tank chamber (14), bus gas tank (7) is equipped with main bus bar (5), branch bus (6), contact box (9), bus Connection Block (4), seal cover board (8), gas tank inflation and pressure detecting valve (3), rush down and press mouthful (2), earthed switch (11) is housed in the feeder line gas tank (10), branch bus (6), contact box (9), built-in current/voltage transducer (13), outer cone cable socket (12), sealing flange (24), seal cover board (8), gas tank inflation and pressure detecting valve (3), rush down and press mouthful (2), can be installed into the outlet cable in cable vault (28), external current transformer (27), plug-in type lightning arrester (25); Control room (15) is provided with installs the protection control unit; breaker chamber (21) is provided with and can laterally moves the vacuum circuit-breaker handcart (22) that is fixed with vacuum circuit-breaker (29), and the contact arm up and down of vacuum circuit-breaker (29) can insert or break away from the socket in the contact box (9) of bus gas tank (7) and feeder line chamber gas tank (10) respectively.
3. press metal enclosed switchgear in according to claim 1, it is characterized in that: gas tank adopts SF 6Gas-insulated, vacuum circuit-breaker (29) adopt gas-insulated, two kinds of insulation modes of solid insulation to use simultaneously.
4. press metal enclosed switchgear in according to claim 1, it is characterized in that: the contact arm up and down of vacuum circuit-breaker (29) is equipped with silicone rubber seal (20), and vacuum circuit-breaker (29) can seal contact box 9 when the service position.
5. press metal enclosed switchgear in according to claim 1, it is characterized in that: sealing valve (17) is equipped with seal, sealing contact box (9) in the time of can shaking out to test position in vacuum circuit-breaker handcart (22).
6. press metal enclosed switchgear in according to claim 1, it is characterized in that: shake by vacuum circuit-breaker handcart (22) and proceed to the service position or shake out to test position, be switched on or switched off bus gas tank (7) and feeder line gas tank (10), tangible primary circuit fracture is arranged.
CNU2007201461886U2007201461886U 2007-04-12 2007-04-12 A middle-voltage metal closed switch device Expired - Fee Related CN201097433Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007201461886U2007201461886U CN201097433Y (en) 2007-04-12 2007-04-12 A middle-voltage metal closed switch device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007201461886U2007201461886U CN201097433Y (en) 2007-04-12 2007-04-12 A middle-voltage metal closed switch device

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Publication Number Publication Date
CN201097433Y true CN201097433Y (en) 2008-08-06

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CNU2007201461886U2007201461886U Expired - Fee Related CN201097433Y (en) 2007-04-12 2007-04-12 A middle-voltage metal closed switch device

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102916351A (en) * 2012-10-22 2013-02-06 川开电气股份有限公司 Reactor trip breaker cabinet for nuclear power station
CN104332879A (en) * 2014-10-28 2015-02-04 施耐德开关（苏州）有限公司 Medium voltage gas filled switchgear with modular circuit breaker
CN104659659A (en) * 2013-11-19 2015-05-27 现代重工业株式会社 Composite insulated switchboard
CN108736369A (en) * 2017-04-18 2018-11-02 北海银河开关设备有限公司 A kind of medium pressure gas insulation looped network bus section cabinet
CN114121544A (en) * 2022-01-27 2022-03-01 四川电器集团中低压智能配电有限公司 Environment-friendly gas insulated switchgear

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102916351A (en) * 2012-10-22 2013-02-06 川开电气股份有限公司 Reactor trip breaker cabinet for nuclear power station
CN104659659A (en) * 2013-11-19 2015-05-27 现代重工业株式会社 Composite insulated switchboard
CN104332879A (en) * 2014-10-28 2015-02-04 施耐德开关（苏州）有限公司 Medium voltage gas filled switchgear with modular circuit breaker
CN108736369A (en) * 2017-04-18 2018-11-02 北海银河开关设备有限公司 A kind of medium pressure gas insulation looped network bus section cabinet
CN114121544A (en) * 2022-01-27 2022-03-01 四川电器集团中低压智能配电有限公司 Environment-friendly gas insulated switchgear
CN114121544B (en) * 2022-01-27 2022-04-01 四川电器集团中低压智能配电有限公司 Environment-friendly gas insulated switchgear

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080806

Termination date: 20130412