CN202564121U - Knife device of low-impedance high-voltage isolating switch - Google Patents
Knife device of low-impedance high-voltage isolating switch Download PDFInfo
- Publication number
- CN202564121U CN202564121U CN201220123580XU CN201220123580U CN202564121U CN 202564121 U CN202564121 U CN 202564121U CN 201220123580X U CN201220123580X U CN 201220123580XU CN 201220123580 U CN201220123580 U CN 201220123580U CN 202564121 U CN202564121 U CN 202564121U
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- fingertip
- contact
- conducting rod
- isolating switch
- bolt
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- Expired - Fee Related
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Abstract
A knife device of a low-impedance high-voltage isolating switch comprises a contact conductive rod, a countersunk head screw, main contact boards, a contact finger fixing block, an insulation pad, a double-head screw, a spring, a contact finger, a contact finger brace rod, and a contact finger conductive rod. The knife device is characterized in that two main contact boards are fixed through the countersunk head screw and are connected with the contact conductive rod through a bolt; and the contact finger, the contact finger fixing block, the insulation pad, the double-head screw and the insulation pad are assembled together through a nut, and then are connected with the contact finger conductive rod and the contact finger brace rod through a bolt. Accordingly, the knife device provided by the utility model can effectively reduce the resistance of the main conductive part and reduce heat generated by the contact points, and has the advantages of high through-current capability and large rated dynamic and thermal current.
Description
Technical field
The utility model relates to High-Voltage Electrical Appliances, is specially a kind of disconnecting link device of low impedance, high voltage isolating switch.
Background technology
Isolating switch is to use maximum a kind of electrical equipment in the high-voltage switch electric appliance, is in circuit, to play buffer action.Itself operation principle and relatively simple for structure, but because use amount is big, functional reliability requires high is all bigger to the influence of design, foundation and the safe operation of electric substation, power plant.High voltage isolator be used for branch, close the no load condition circuit, safety is isolated repair apparatus and change-over circuit; And should be able to pass through rated current reliably in running status.Present and the more approaching high voltage isolator of this technology has GW4, GW5 type; Its terminal box part by binding clip, terminal box, conductive shaft, being flexible coupling constitutes; Its operation principle is: terminal box is connected through bolt with leading fulgurite; Being flexible coupling is connected through bolt with terminal box with conductive shaft, and conductive shaft can revolve and turn 90 degrees, and binding clip and conductive shaft clamp through bolt.The terminal box of old structure is an aluminum casting, and this structure through-current capability is little.
The utility model content
The technical problem that the utility model solved is to provide a kind of disconnecting link device of low impedance, high voltage isolating switch, to solve the shortcoming in the above-mentioned background technology.
The technical problem that the utility model solved adopts following technical scheme to realize:
A kind of disconnecting link device of low impedance, high voltage isolating switch; Comprise contact conducting rod, cross sunk screw, main contact plate, fingertip fixed block, insulation cushion, double threaded screw, spring, fingertip, fingertip strut, fingertip conducting rod; Said main contact plate is to fix and link together through bolt with said contact conducting rod through said cross sunk screw; Said fingertip, said fingertip fixed block, said insulation cushion, said double threaded screw, said insulation cushion are assembled together through nut; Whole then and said fingertip conducting rod, said fingertip strut link together through bolt; Said contact conducting rod, said cross sunk screw, said main contact plate, through bolt together, said fingertip fixed block, said insulation cushion, said double threaded screw, said spring, said fingertip, said fingertip strut, said fingertip conducting rod link together through assembling; The material of main contact plate is that red copper is silver-plated, the material epoxy novolac layer paperboard of said fingertip fixed block.
Beneficial effect
The disconnecting link device of a kind of low impedance, high voltage isolating switch of the utility model, it is long-pending to have increased conductive contact surfaces, effectively reduces leading electric part resistance, reduces the contact point heating, and through-current capability is strong, and specified dynamic and thermal stability electric current is big.Under the same terms, contact pressure is reliable and stable, thereby it is big to have current-carrying capacity, and electric property is stable, improved the electric reliability of high voltage isolator on the whole, and technology is simple, and is easy to maintenance, and production and maintenance cost are low.
Description of drawings
Fig. 1 is a kind of disconnecting link device sketch map of low impedance, high voltage isolating switch.
Among the figure: contact conducting rod 1, cross sunk screw 2, main contact plate 3, fingertip fixed block 4, insulation cushion 5, double threaded screw 6, spring 7, fingertip 8, fingertip strut 9, fingertip conducting rod 10.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
A kind of disconnecting link device of low impedance, high voltage isolating switch; Comprise contact conducting rod 1, cross sunk screw 2, main contact plate 3, fingertip fixed block 4, insulation cushion 5, double threaded screw 6, spring 7, fingertip 8, fingertip strut 9, fingertip conducting rod 10; Two said main contact plates 3 are fixing and link together through bolt with said contact conducting rod 1 through said cross sunk screw 2; Said fingertip 8, said fingertip fixed block 3, said insulation cushion 5, said double threaded screw 6, said insulation cushion 5 are assembled together through nut; Whole then and said fingertip conducting rod 10, said fingertip strut 9 link together through bolt; Said contact conducting rod 1, said cross sunk screw 2, said main contact plate 3, through bolt together, said fingertip fixed block 4, said insulation cushion 5, said double threaded screw 6, said spring 7, said fingertip 8, said fingertip strut 9, said fingertip conducting rod 10 link together through assembling; The material of said main contact plate 3 is that red copper is silver-plated; The material epoxy novolac layer paperboard of said fingertip fixed block 4, fingertip produces contact pressure through the elastic force of self with outer pressing spring, forms reliable galvanic circle.
More than show and described basic principle of the utility model and the advantage of principal character and the utility model; The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described, under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications; These variations and improvement all fall in the utility model scope that requires protection, and the utility model requires protection range to be defined by appending claims and equivalent thereof.
Claims (3)
1. the disconnecting link device of a low impedance, high voltage isolating switch comprises contact conducting rod, cross sunk screw, main contact plate, fingertip fixed block, insulation cushion, double threaded screw, spring, fingertip, fingertip strut, fingertip conducting rod; It is characterized in that; Two said main contact plates are to fix and link together through bolt with said contact conducting rod through said cross sunk screw; Said fingertip, said fingertip fixed block, said insulation cushion, said double threaded screw, said insulation cushion are assembled together through nut; Whole then and said fingertip conducting rod, said fingertip strut link together through bolt; Said contact conducting rod, said cross sunk screw, said main contact plate; Through bolt together, said fingertip fixed block, said insulation cushion, said double threaded screw, said spring, said fingertip, said fingertip strut, said fingertip conducting rod link together through assembling.
2. the disconnecting link device of a kind of low impedance, high voltage isolating switch according to claim 1 is characterized in that, the material of main contact plate is that red copper is silver-plated.
3. the disconnecting link device of a kind of low impedance, high voltage isolating switch according to claim 1 is characterized in that, the material epoxy novolac layer paperboard of said fingertip fixed block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220123580XU CN202564121U (en) | 2012-03-22 | 2012-03-22 | Knife device of low-impedance high-voltage isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220123580XU CN202564121U (en) | 2012-03-22 | 2012-03-22 | Knife device of low-impedance high-voltage isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202564121U true CN202564121U (en) | 2012-11-28 |
Family
ID=47213749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220123580XU Expired - Fee Related CN202564121U (en) | 2012-03-22 | 2012-03-22 | Knife device of low-impedance high-voltage isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202564121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105489407A (en) * | 2015-12-30 | 2016-04-13 | 北京双杰电气股份有限公司 | Isolating knife assembly |
-
2012
- 2012-03-22 CN CN201220123580XU patent/CN202564121U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105489407A (en) * | 2015-12-30 | 2016-04-13 | 北京双杰电气股份有限公司 | Isolating knife assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20150322 |
|
| EXPY | Termination of patent right or utility model |