CN201498291U - Detachable lightning arrester - Google Patents
Detachable lightning arrester Download PDFInfo
- Publication number
- CN201498291U CN201498291U CN2009203067351U CN200920306735U CN201498291U CN 201498291 U CN201498291 U CN 201498291U CN 2009203067351 U CN2009203067351 U CN 2009203067351U CN 200920306735 U CN200920306735 U CN 200920306735U CN 201498291 U CN201498291 U CN 201498291U
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- CN
- China
- Prior art keywords
- disconnector
- lightning arrester
- insulation column
- connecting bolt
- fixed contact
- 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
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Abstract
The utility model relates to a detachable lightning arrester, which comprises a lightning arrester and an insulating brace, wherein the lightning arrester and the upper end of the insulating brace are electrically connected by a moving contact, and the lightning arrester and the lower end of the insulating brace are electrically connected by a fixed contact; the lower end of the insulating brace is also provided with a disconnector; one end of the disconnector is provided with a screw hole, and the other end is provided with a connecting bolt; the disconnector is rotatably fixed on a bolt of the bottom of the insulating brace through the screw hole; the connecting bolt of the disconnector is connected with an earthing conductor; and the middle of the disconnector is provided with a disconnecting assembly. When overvoltage is generated in a system, the leakage current of the lightning arrester is increased; when the leakage current flowing through the disconnector exceeds the predetermined current value of the disconnector, the disconnector generates high temperature to enable a thermal explosion type disconnector to be exploded, which disconnects the fixed contact and the earthing conductor, and thereby, the further expansion of an accident is prevented, and meanwhile, the maintenance personnel can find the faulted detachable lightning arrester in time. The utility model has the advantages that the disconnecting action is rapid, the action current range is wide and the lightning arrester can bear prescriptive current impact and action load.
Description
Technical field
The utility model relates to a kind of outdoor high-voltage thunder resisting equipment, particularly a kind of detachable lightning arrester.
Background technology
Detachable lightning arrester is a kind of easy-to-dismount high pressure combined electrical apparatus, is suitable for the place that should not have a power failure, as post and telecommunications, airport, station, hospital, bustling commercial block etc.; Lightning arrester is connected between high-voltage conducting wires and the ground usually, and is in parallel with protected equipment.Move under protected equipment normal working voltage, Analyse of Reject-acting Arrester promptly is considered as opening circuit over the ground.In case overcurrent appears, and jeopardize protection when apparatus insulated lightning arrester move, with impacting with high pressure conduct current the earth, thus the insulation of deboost amplitude protection electric equipment.Having served as behind the loss of voltage lightning arrester attitude that restores to the original state rapidly can normally move system.When lightning arrester breaks down or damage, need releasing mechanism lightning arrester and ground path are disconnected, prevent the further expansion of accident, and be easy to the attendant and in time find to safeguard.
The utility model content
The purpose of this utility model is to provide one when lightning arrester breaks down or damage, and lightning arrester and ground path is disconnected, and can significantly indicate, and makes the attendant in time find the detachable lightning arrester of fault.
The technical scheme that realizes the utility model purpose is: a kind of detachable lightning arrester, have lightning arrester and insulation column, lightning arrester is electrically connected by moving contact with the insulation column upper end, lightning arrester is electrically connected by fixed contact with the insulation column lower end, on the hinged lightning arrester of the first end of stationary contact, the other end is " U " shape link, and the insulation column lower end is provided with bolt, and " U " shape link of fixed contact is fixed by nut and insulation column; Described insulation column lower end also is provided with disconnector, described disconnector one end has screw, the other end is provided with connecting bolt, disconnector is rotated with on the bolt of insulation column bottom by screw, the connecting bolt of disconnector links to each other with earth lead, and the middle part of disconnector is provided with the disengaging assembly that connecting bolt is separated with disconnector.
The disconnector of above-mentioned detachable lightning arrester is the heat explosion type disconnector, and the described disengaging assembly that connecting bolt is separated with disconnector is the explosive layer that is arranged on the disconnector middle part.
The utlity model has following characteristics: (1) the utility model is to be installed in dexterously on the supporting mechanism of fuse switch after the repacking of distribution type metal oxide arrester, and fix by the heat explosion type disconnector at fixed contact and insulation column junction, when overvoltage appears in system, the leakage current of lightning arrester increases, when the leakage current that flows through disconnector surpasses the predetermined current value of disconnector, disconnector produces high temperature and makes the blast of heat explosion type disconnector, fixed contact is disconnected and being connected of earth lead, prevent the further exaggerative of accident, can make the attendant in time find the detachable lightning arrester of fault simultaneously; (2) in the heat explosion type disconnector of the present utility model explosive layer is set, can guarantee the connecting bolt of heat explosion type disconnector is separated with disconnector at explosion time, thereby disconnect ground connection, have disengaging and be swift in motion, the operating current scope is wide, can tolerate the advantage of rated current impact and operating duty.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is an A place enlarged drawing among Fig. 1.
Embodiment
See Fig. 1 and Fig. 2, a kind of detachable lightning arrester, have lightning arrester 1 and insulation column 2, lightning arrester 1 is electrically connected by moving contact 6 with insulation column 2 upper ends, lightning arrester 1 is electrically connected by fixed contact 3 with insulation column 2 lower ends, and on the hinged lightning arrester 1 of fixed contact 3 one ends, the other end is " U " shape link, insulation column 2 lower ends are provided with bolt 4, and " U " shape link of fixed contact 3 is fixing with insulation column 2 by nut 7; Insulation column 2 lower ends also are provided with disconnector 5, described disconnector 5 one ends have screw 51, the other end is provided with connecting bolt 52, disconnector 5 is rotated with on the bolt 4 of insulation column 2 bottoms by screw 51, the connecting bolt 52 of disconnector 5 links to each other with earth lead, the middle part of disconnector is provided with the disengaging assembly 53 that connecting bolt 52 is separated with disconnector 5, and disconnector 5 is the heat explosion type disconnector, breaks away from assembly 53 for being arranged on the explosive layer at disconnector 5 middle parts.When overvoltage appears in system, the leakage current of lightning arrester increases, when the leakage current that flows through disconnector surpasses the predetermined current value of disconnector, disconnector produces explosive layer 53 blasts that high temperature makes heat explosion type disconnector 5, connecting bolt 52 explosions are separated, so just disconnect ground connection, can play significant marked effect simultaneously, make the attendant can in time find the fault lightning arrester, safeguarded and change.
Claims (2)
1. detachable lightning arrester, have lightning arrester (1) and insulation column (2), lightning arrester (1) is electrically connected by moving contact (6) with insulation column (2) upper end, lightning arrester (1) is electrically connected by fixed contact (3) with insulation column (2) lower end, on the fixed contact hinged lightning arresters of (3) one ends (1), the other end is " U " shape link, and insulation column (2) lower end is provided with bolt (4), and " U " shape link of fixed contact (3) is fixing by nut (7) and insulation column (2); It is characterized in that: described insulation column (2) lower end also is provided with disconnector (5), described disconnector (5) one ends have screw (51), the other end is provided with connecting bolt (52), disconnector (5) is rotated with on the bolt (4) of insulation column (2) bottom by screw (51), the connecting bolt (52) of disconnector (5) links to each other with earth lead, and the middle part of disconnector is provided with the disengaging assembly (53) that connecting bolt (52) is separated with disconnector (5).
2. detachable lightning arrester according to claim 1, it is characterized in that: described disconnector (5) is the heat explosion type disconnector, describedly makes disengaging assembly (53) that connecting bolt (52) separates with disconnector (5) for being arranged on the explosive layer in the middle part of the disconnector (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203067351U CN201498291U (en) | 2009-07-23 | 2009-07-23 | Detachable lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203067351U CN201498291U (en) | 2009-07-23 | 2009-07-23 | Detachable lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201498291U true CN201498291U (en) | 2010-06-02 |
Family
ID=42441493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203067351U Expired - Fee Related CN201498291U (en) | 2009-07-23 | 2009-07-23 | Detachable lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201498291U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709012A (en) * | 2012-06-25 | 2012-10-03 | 虞城县供电有限责任公司 | Detachable arrester |
| CN105116253A (en) * | 2015-08-25 | 2015-12-02 | 国网新疆电力公司昌吉供电公司 | Live dismounting structure of lightning arrester on-line monitoring device |
| CN108198675A (en) * | 2018-02-08 | 2018-06-22 | 广州中光电气科技有限公司 | Lightning arrester with degradation display function and core capable of being replaced in electrified mode and overhauling method thereof |
| CN109873411A (en) * | 2019-04-19 | 2019-06-11 | 国网福建省电力有限公司宁德供电公司 | A kind of intelligent line thunder protection device of self-healing and its lightening arresting method |
| US11322934B2 (en) * | 2016-09-13 | 2022-05-03 | Hitachi Energy Switzerland Ag | Protection of a surge arrester with a better protection against failure from thermal overload in case of a temporary overvoltage in an electrical grid line |
-
2009
- 2009-07-23 CN CN2009203067351U patent/CN201498291U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709012A (en) * | 2012-06-25 | 2012-10-03 | 虞城县供电有限责任公司 | Detachable arrester |
| CN105116253A (en) * | 2015-08-25 | 2015-12-02 | 国网新疆电力公司昌吉供电公司 | Live dismounting structure of lightning arrester on-line monitoring device |
| US11322934B2 (en) * | 2016-09-13 | 2022-05-03 | Hitachi Energy Switzerland Ag | Protection of a surge arrester with a better protection against failure from thermal overload in case of a temporary overvoltage in an electrical grid line |
| US11682899B2 (en) | 2016-09-13 | 2023-06-20 | Hitachi Energy Switzerland Ag | Protection of a surge arrester with a better protection against failure from thermal overload in case of a temporary overvoltage in an electrical grid line |
| CN108198675A (en) * | 2018-02-08 | 2018-06-22 | 广州中光电气科技有限公司 | Lightning arrester with degradation display function and core capable of being replaced in electrified mode and overhauling method thereof |
| CN109873411A (en) * | 2019-04-19 | 2019-06-11 | 国网福建省电力有限公司宁德供电公司 | A kind of intelligent line thunder protection device of self-healing and its lightening arresting method |
| CN109873411B (en) * | 2019-04-19 | 2024-05-17 | 国网福建省电力有限公司宁德供电公司 | Self-healing intelligent circuit lightning protection device and lightning protection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20100602 Termination date: 20120723 |