CN202977189U - Grounding contact seat structure - Google Patents
Grounding contact seat structure Download PDFInfo
- Publication number
- CN202977189U CN202977189U CN 201220615355 CN201220615355U CN202977189U CN 202977189 U CN202977189 U CN 202977189U CN 201220615355 CN201220615355 CN 201220615355 CN 201220615355 U CN201220615355 U CN 201220615355U CN 202977189 U CN202977189 U CN 202977189U
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- China
- Prior art keywords
- contact
- grounding
- seat structure
- seat
- contact seat
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- 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
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- Elimination Of Static Electricity (AREA)
Abstract
The utility model discloses a grounding contact seat structure, which comprises a contact and a support seat. The contact is mounted on the support seat and is cylindrical, an upper end of the contact has an inward flanging, the edge of the flanging has a downward top edge, and the outer surface of the top edge is at an upper end of a contact sheet inside the contact. The beneficial effects of the grounding contact seat structure are that: the grounding contact seat structure is simple, convenient to assemble and low in cost, has a stable grounding loop resistance value, and is beneficial for reliable grounding of a high-voltage switchgear; the design combines a conventional shielding case with a contact seat into one piece, omits the shielding case, a petal-shaped contact finger and tightening springs and uses one contact seat to replace the shielding case, the petal-shaped contact finger and the tightening springs; and grounding electric connection is reduced, through-current capability and stability of grounding resistance of a grounding loop of the high-voltage switchgear are benefited, and also grounding safety is improved.
Description
Technical field
The utility model belongs to high voltage switchgear with ground connection electric contact syndeton, relates to a kind of grounding contact holder structure.
Background technology
At present, most of radome, flap fingertip, the contact base of adopting of 110kV and above high-voltage switch gear grounding contact seat, the flap fingertip tightens with tightening spring.Its complex structure, manufacturing cost is high, wear no resistance, the assembling take a lot of work, time-consuming.The heating that when earth fault occurring, large electric current causes causes that easily loop resistance increases.
Summary of the invention
The utility model is in order to make up the deficiencies in the prior art, and a kind of grounding contact holder structure of simple in structure, dependable performance is provided.
The utility model is achieved by the following technical solution:
Grounding contact holder structure of the present utility model, its special character is: comprise contact and bearing, contact is arranged on bearing, contact is tubular, there is inside flange the contact upper end, and there is downward top margin at the flange edge, and the top margin outer surface withstands on the contact upper end that is positioned at contact inside.
Preferred version is, the contact lower end is arranged on bearing by bolt.
The beneficial effects of the utility model are, it is simple in structure, and are easy to assembly, cost is low, the grounded circuit resistance value stable, is conducive to the high voltage switchgear reliable ground.This design is integrated conventional radome and contact base assembly, has saved radome, has broken the shape fingertip off with the fingers and thumb and tighten spring, has replaced radome, flap fingertip, has tightened spring with a touch base.Reduce the ground connection electrical connection, be conducive to the through-current capability of high voltage switchgear grounded circuit and the stability of earth resistance, more improved the fail safe of ground connection.This design is mainly used in the electrical switchgear of 126kV and above.This product has successfully passed through the dynamic and thermal stability type approval test of national inspection centers 125KA/4S.
Description of drawings
Fig. 1 is conventional high-tension switch shielding contact base structure chart.Fig. 2 is high-voltage switch gear grounding contact holder structure figure after improving.
1 radome, 2 tighten spring, 3 screws, 4 bearings, 5 baffle plates, 6 break the shape fingertip off with the fingers and thumb, 7 guide rings.8 contacts, 9 bolts, 10 flange, 11 contacts, 12 top margins.
Embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.
Grounding contact holder structure of the present utility model comprises contact 8 and bearing 4, and contact is arranged on bearing, and contact is tubular, and there is inside flange 10 the contact upper end, and there is downward top margin 12 at the flange edge, and the top margin outer surface withstands on contact 11 upper ends that are positioned at contact inside.The contact lower end is arranged on bearing by bolt 9.
Grounding contact holder structure of the present utility model is integrated conventional radome 1 and contact base assembly, has saved radome 1, baffle plate 5, breaks shape fingertip 6 off with the fingers and thumb and has tightened spring 2, has replaced radome, flap fingertip, has tightened spring with a touch base.Reduce the ground connection electrical connection, be conducive to the through-current capability of high voltage switchgear grounded circuit and the stability of earth resistance, more improved the security reliability of ground connection.
Claims (2)
1. grounding contact holder structure, it is characterized in that: comprise contact and bearing, contact is arranged on bearing, and contact is tubular, and there is inside flange the contact upper end, and there is downward top margin at the flange edge, and the top margin outer surface withstands on the contact upper end that is positioned at contact inside.
2. grounding contact holder structure according to claim 1 is characterized in that: the contact lower end is arranged on bearing by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220615355 CN202977189U (en) | 2012-11-20 | 2012-11-20 | Grounding contact seat structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220615355 CN202977189U (en) | 2012-11-20 | 2012-11-20 | Grounding contact seat structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202977189U true CN202977189U (en) | 2013-06-05 |
Family
ID=48518233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220615355 Expired - Fee Related CN202977189U (en) | 2012-11-20 | 2012-11-20 | Grounding contact seat structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202977189U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105931870A (en) * | 2016-06-06 | 2016-09-07 | 平高集团有限公司 | Support conductor and high-voltage switch using conductor |
-
2012
- 2012-11-20 CN CN 201220615355 patent/CN202977189U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105931870A (en) * | 2016-06-06 | 2016-09-07 | 平高集团有限公司 | Support conductor and high-voltage switch using conductor |
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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: 20130605 Termination date: 20151120 |
|
| EXPY | Termination of patent right or utility model |