CN203503537U - Three-position isolation grounding switching device - Google Patents

Three-position isolation grounding switching device Download PDF

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Publication number
CN203503537U
CN203503537U CN201320669982.4U CN201320669982U CN203503537U CN 203503537 U CN203503537 U CN 203503537U CN 201320669982 U CN201320669982 U CN 201320669982U CN 203503537 U CN203503537 U CN 203503537U
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CN
China
Prior art keywords
contact
grounding
insulator
conductor
switch
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
CN201320669982.4U
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Chinese (zh)
Inventor
唐剑
周姚定
王辉
梁瑢
戴绍辉
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.)
ZHEJIANG ELECTRIC Co LTD TIANAN ELECTRICAL GROUP
Original Assignee
ZHEJIANG ELECTRIC Co LTD TIANAN ELECTRICAL GROUP
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Publication date
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Priority to CN201320669982.4U priority Critical patent/CN203503537U/en
Application granted granted Critical
Publication of CN203503537U publication Critical patent/CN203503537U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a three-position isolation grounding switching device comprising a housing; a movable contact mechanism, a fixed contact mechanism, a transmission mechanism and a grounding mechanism; the transmission mechanism and the movable contact mechanism are in cooperation connection; an isolation switch and a grounding switch are designed to form the three-position isolation grounding switch; only one movable contact is designed, and three-position state is realized by up-down motions of the movable contact; isolation switch closing and grounding switch opening, isolation switch opening and grounding switch closing, isolation switch opening and grounding switch opening, i.e., three switching states are realized to obtain different connection and disconnection purposes of a main loop; because the device employs a single-movable contact motion mode to carry out connections between contacts, so the product can be simple in structure, and the contact is a helical spring contact, thereby relatively improving contact reliability; the three-position isolation grounding switching device is high in cost performance, and has very big practical and popularization values.

Description

A kind of three station isolation grounding switch devices
Technical field
The utility model belongs to high-voltage switch gear technical field, is specifically related to a kind of three station isolation grounding switch devices.
Background technology
Threephase common-box three station isolation grounding switch devices are significant components in gas insulation metal seal combined electrical apparatus, and it mainly contains two functions: breaking-closing operating and ground connection operation.126kV Cubicle Gas-Insulated Switchgear adopts split-type structural with isolating switch and earthed switch at present, need Yong Liangtai mechanism respectively to drive isolating switch and earthed switch, three kinds, loop operating state realizes by the co-operate of isolation-earthed switch, and adopts electrical interlock between isolation and earthed switch.Former isolation is electrically connected to aspect and adopts Mume flower contact or self-support type contact with earthed switch major loop and grounded circuit, contact size is large, and electric conductivity is not high, and isolation-earthed switch module size is difficult to control.
Traditional isolating switch, earthed switch structure are divided and are arranged, machinery between isolating switch and earthed switch and electrical interlock complex structure, although met in theory the logic blocking of electric anti-misoperation, still there is certain problem in electrical interlock: artificial misoperation, electric wire virtual connection and secondary component contact adhesion etc.
Traditional isolating switch and earthed switch shared volume ratio in gas insulation metal seal combined electrical apparatus is larger.Excessive volume, is not only unfavorable for installation and the use of gas insulation metal seal combined electrical apparatus, also makes the adverse effects such as the large and easy misoperation of poor stability, the floor space of gas insulation metal seal combined electrical apparatus.The isolating switch operating mechanism that separate relative to earthed switch and corresponding independently moving contact complete separating brake, closing operation, zero device of gas insulation metal seal combined electrical apparatus is increased, product cost increases, and is but difficult to meet the structural requirement of gas insulation metal seal combined electrical apparatus.
Summary of the invention
For the existing above-mentioned technical problem of prior art, the utility model provides a kind of three station isolation grounding switch devices, by the function of isolating switch and earthed switch is integrated, simplify the operation and electrical interlock, significantly improved stability and the security reliability of gas-insulated metal-enclosed electrical equipment.
Three station isolation grounding switch devices, comprise housing, include dynamic contact mechanism, static contact mechanism, transmission mechanism and earthing mechanism in described housing; The first insulator and the second insulator are installed on housing; Described transmission mechanism and dynamic contact mechanism are connected;
Described dynamic contact mechanism is located on the first insulator, and static contact mechanism is located on the second insulator, and earthing mechanism is located on housing.
Described transmission mechanism comprises the rotating shaft that gear and driven gear rotate.
Described dynamic contact mechanism comprises the first conductor, movable contact block and moving contact, and described movable contact block is installed on the first insulator, and the first described conductor is connected with movable contact block with the first insulator; Described moving contact is nested in movable contact block by guide, and one is rectified static contact mechanism, and the other end is over against earthing mechanism;
Described moving contact is provided with tooth bar, and described tooth bar is fixed by alignment pin and is meshed with the gear in transmission mechanism.
Preferably, described moving contact has arcing contact over against one end of static contact mechanism, the electric arc in the time of can bearing drop-out current.
Described static contact mechanism comprises the second conductor, fixed contact pedestal and fixed contact; Described fixed contact pedestal is installed on the second insulator, and the second described conductor is connected with fixed contact pedestal with the second insulator, and described fixed contact is located in fixed contact pedestal and over against dynamic contact mechanism.
Described earthing mechanism comprises busbar, the 3rd conductor, insulating part, grounding base and grounding contact; The 3rd described conductor dbus is crossed insulating part and is installed in housing, and described busbar is positioned at outside housing and is connected with the 3rd conductor one end, and the other end of the 3rd conductor is connected with grounding base, and described grounding contact is located in grounding base and over against dynamic contact mechanism.
Described fixed contact and grounding contact are helical spring contact.
When the utility model is carried out ground connection operation when needs, thereby three station operating mechanisms pass through to drive its rotating shaft rotation control rod transmission gear, the tooth bar of the gear driven contact of transmission mechanism, and moving contact is moved up, closed mutually with earthing mechanism, form earthed switch "on" position.When needs are carried out isolating switch closing operation, thereby three station operating mechanisms rotate by the rotating shaft of its transmission mechanism of drive the tooth bar that drives moving contact, and moving contact is moved down, closed mutually with static contact mechanism, form isolating switch "on" position.When needs are carried out isolating switch sub-switching operation, thereby three station operating mechanisms are by driving the rotating shaft rotation of its transmission mechanism to drive the tooth bar of moving contact, and moving contact is moved to centre, moving contact is mediated, disconnect mutually with static contact mechanism and earthing mechanism respectively, formed isolating switch gate-dividing state.
The utility model becomes isolating switch and earthed switch design the isolation earthing switch of three stations, only be designed with a moving contact, by moving up and down of moving contact, realize three station states, isolating switch combined floodgate and grounding switch tripping, isolating switch separating brake and earthed switch close a floodgate and isolating switch separating brake and three kinds of on off states of grounding switch tripping, have reached the different switching object of major loop; Owing to adopting the mode that single moving contact moves to carry out the connection between contact, thereby make product structure simple, and contact is helical spring contact, corresponding increase the reliability of contact.Product has very high cost performance, so there is very large practical and popularizing value.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
In order more specifically to describe the utility model, below in conjunction with the drawings and the specific embodiments, the technical solution of the utility model is elaborated.
As shown in Figure 1, a kind of three station isolation grounding switch devices, comprise housing 1, include dynamic contact mechanism, static contact mechanism, transmission mechanism and earthing mechanism in housing 1; The first insulator 21 and the second insulator 22 are installed on housing 1; Transmission mechanism and dynamic contact mechanism are connected.
Dynamic contact mechanism is located on the first insulator 21, and static contact mechanism is located on the second insulator 22, and earthing mechanism is located on housing 1.
Transmission mechanism comprises the rotating shaft 52 that gear 51 and driven gear 51 rotate.
Dynamic contact mechanism comprises the first conductor 31, movable contact block 61 and moving contact 41, movable contact block 61 is installed on the first insulator 21, the first conductor 31 is connected with movable contact block 61 with the first insulator 21, moving contact 41 is nested in movable contact block 61 by guide 9, one is rectified static contact mechanism, and the other end is over against earthing mechanism;
Moving contact 41 is provided with tooth bar 7, and tooth bar 7 is fixed and is meshed with the gear 51 in transmission mechanism by alignment pin 8; Moving contact 41 has arcing contact 40 over against one end of static contact mechanism, the electric arc in the time of can bearing drop-out current.
Static contact mechanism comprises the second conductor 32, fixed contact pedestal 62 and fixed contact 42; Fixed contact pedestal 62 is installed on the second insulator 22, and the second conductor 32 is connected with fixed contact pedestal 62 with the second insulator 22, and fixed contact 42 is located in fixed contact pedestal 62 and over against dynamic contact mechanism.
Earthing mechanism comprises busbar 10, the 3rd conductor 33, insulating part 23, grounding base 63 and grounding contact 43; The 3rd conductor 33 is installed in housing 1 by insulating part 23, and busbar 10 is positioned at outside housing 1 and is connected with the 3rd conductor 33 one end, and the other end of the 3rd conductor 33 is connected with grounding base 63, and grounding contact 43 is located in grounding base 63 and over against dynamic contact mechanism.
Fixed contact 42 and grounding contact 43 are helical spring contact.
When present embodiment is carried out ground connection operation when needs, thereby three station operating mechanisms are by driving its rotating shaft 52 rotation control rod transmission gears, and the gear 51 of transmission mechanism drives the tooth bar 7 of moving contact 41, and moving contact 41 is moved up, closed mutually with earthing mechanism, form earthed switch "on" position.
When needs are carried out isolating switch closing operation, thereby three station operating mechanisms rotate by the rotating shaft 52 of its transmission mechanism of drive the tooth bar 7 that drives moving contacts 41, and moving contact 41 is moved down, closed mutually with static contact mechanism, form isolating switch "on" position.
When needs are carried out isolating switch sub-switching operation, thereby three station operating mechanisms are by driving rotating shaft 52 rotations of its transmission mechanism to drive the tooth bar 7 of moving contact 41, and moving contact 41 is moved to centre, moving contact 41 is mediated, disconnect mutually with static contact mechanism and earthing mechanism respectively, formed isolating switch gate-dividing state.

Claims (9)

1. three station isolation grounding switch devices, comprise housing, it is characterized in that: in described housing, include dynamic contact mechanism, static contact mechanism, transmission mechanism and earthing mechanism; The first insulator and the second insulator are installed on housing; Described transmission mechanism and dynamic contact mechanism are connected;
Described dynamic contact mechanism is located on the first insulator, and static contact mechanism is located on the second insulator, and earthing mechanism is located on housing.
2. three station isolation grounding switch devices according to claim 1, is characterized in that: described transmission mechanism comprises the rotating shaft that gear and driven gear rotate.
3. three station isolation grounding switch devices according to claim 2, it is characterized in that: described dynamic contact mechanism comprises the first conductor, movable contact block and moving contact, described movable contact block is installed on the first insulator, and the first described conductor is connected with movable contact block with the first insulator; Described moving contact is nested in movable contact block by guide, and one is rectified static contact mechanism, and the other end is over against earthing mechanism.
4. three station isolation grounding switch devices according to claim 3, is characterized in that: described moving contact is provided with tooth bar, and described tooth bar is fixed by alignment pin and is meshed with the gear in transmission mechanism.
5. three station isolation grounding switch devices according to claim 3, is characterized in that: described moving contact has arcing contact over against one end of static contact mechanism.
6. three station isolation grounding switch devices according to claim 1, is characterized in that: described static contact mechanism comprises the second conductor, fixed contact pedestal and fixed contact; Described fixed contact pedestal is installed on the second insulator, and the second described conductor is connected with fixed contact pedestal with the second insulator, and described fixed contact is located in fixed contact pedestal and over against dynamic contact mechanism.
7. three station isolation grounding switch devices according to claim 1, is characterized in that: described earthing mechanism comprises busbar, the 3rd conductor, insulating part, grounding base and grounding contact; The 3rd described conductor dbus is crossed insulating part and is installed in housing, and described busbar is positioned at outside housing and is connected with the 3rd conductor one end, and the other end of the 3rd conductor is connected with grounding base, and described grounding contact is located in grounding base and over against dynamic contact mechanism.
8. three station isolation grounding switch devices according to claim 6, is characterized in that: described fixed contact is helical spring contact.
9. three station isolation grounding switch devices according to claim 7, is characterized in that: described grounding contact is helical spring contact.
CN201320669982.4U 2013-10-28 2013-10-28 Three-position isolation grounding switching device Expired - Fee Related CN203503537U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320669982.4U CN203503537U (en) 2013-10-28 2013-10-28 Three-position isolation grounding switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320669982.4U CN203503537U (en) 2013-10-28 2013-10-28 Three-position isolation grounding switching device

Publications (1)

Publication Number Publication Date
CN203503537U true CN203503537U (en) 2014-03-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320669982.4U Expired - Fee Related CN203503537U (en) 2013-10-28 2013-10-28 Three-position isolation grounding switching device

Country Status (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106099656A (en) * 2016-06-07 2016-11-09 广州泰鼎电气有限公司 High-voltage AC switch cabinet
CN106206145A (en) * 2016-08-31 2016-12-07 青岛特锐德电气股份有限公司 Pre-install adjustable three station isolation grounding device, GIS device and assemble method
CN109148204A (en) * 2017-06-27 2019-01-04 河南平芝高压开关有限公司 A kind of gas-insulating and fully-enclosed combined electrical apparatus and its three-station isolating grounding switch

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106099656A (en) * 2016-06-07 2016-11-09 广州泰鼎电气有限公司 High-voltage AC switch cabinet
CN106099656B (en) * 2016-06-07 2018-07-31 广州泰鼎电气有限公司 High-voltage AC switch cabinet
CN106206145A (en) * 2016-08-31 2016-12-07 青岛特锐德电气股份有限公司 Pre-install adjustable three station isolation grounding device, GIS device and assemble method
CN106206145B (en) * 2016-08-31 2018-06-01 青岛特锐德电气股份有限公司 Pre-install adjustable three stations isolation earthing or grounding means, GIS device and assemble method
CN109148204A (en) * 2017-06-27 2019-01-04 河南平芝高压开关有限公司 A kind of gas-insulating and fully-enclosed combined electrical apparatus and its three-station isolating grounding switch

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140326

Termination date: 20171028