CN2465286Y - Composite sleeve ac metal oxidate arrester with automatic releaser - Google Patents
Composite sleeve ac metal oxidate arrester with automatic releaser Download PDFInfo
- Publication number
- CN2465286Y CN2465286Y CN 00230175 CN00230175U CN2465286Y CN 2465286 Y CN2465286 Y CN 2465286Y CN 00230175 CN00230175 CN 00230175 CN 00230175 U CN00230175 U CN 00230175U CN 2465286 Y CN2465286 Y CN 2465286Y
- Authority
- CN
- China
- Prior art keywords
- lightning arrester
- arrester
- release unit
- releasing device
- utility
- 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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- Thermistors And Varistors (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to an automatic releasing device of lightning protection in an electric power system. The lower part of a composite alternate current metallic oxide lightning arrester is provided with the automatic releasing device. When short circuit fault occurs in the lightning arrester, the releasing device acts so that the lightning arrester is automatically separated from the system and retreats from operation to prevent the short circuit power failure accident. The electrical supply reliability is increased, and meanwhile, the visible obvious mark is given. The line maintainer is reminded to replace the lightning arrester, and the utility model achieves the purpose that the lightning arrester is free from maintenance in effective life.
Description
The utility model is a kind of automatic release unit of lightning protection that is applied in the electric power system.
AC metal oxide lightning arrester is present optimal, highly reliable in the world lightning protection device; its stable performance; the discharge off time delay; the steep wave characteristic is good; do not have the ripple of cutting, operating temperature range is wide, can effectively suppress overvoltage; more can tolerate multiple thunderbolt, for power system security, operation reliably provide necessary assurance means.But when permanent shorted to earth fault took place because of certain reason lightning arrester, often ground signalling appearred in system, and lightning arrester does not explode, and needs the flower great amount of manpower and material resources to remove to inquire about the lightning arrester of accident point and damage, causes long-time power failure.
The purpose of this utility model is will provide a kind of when lightning arrester is short-circuited fault, the lightning arrester that can break away from automatically.
The utility model is achieved in that in the bottom of polymeric metal oxide surge arrester and is equipped with automatic release unit.At automatic release unit is that a temperature susceptibility contact terminal is arranged, and when having surpassed certain design temperature, temperature susceptibility contact terminal breaks away from its connecting portion screw rod under the effect of spring, reaches the purpose of disengaging.
Owing to adopted technique scheme, when lightning arrester is short-circuited fault, the release unit action, lightning arrester and system are broken away from automatically, out of service, prevent the generation of short circuit power cut accident, improved power supply reliability, and provided the distinguishing mark of observability simultaneously, and remind (asking) line attendant in time to change, realized lightning arrester non-maintaining purpose in effective life.
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is an automatic release unit structural representation of the present utility model.
In the drawings: 1, composite sheath AC metal oxide lightning arrester; 2, automatic release unit; 3, temperature susceptibility contact terminal; 4, spring; 5, screw rod.
Automatically release unit (2) is contained in the bottom of composite sheath AC metal oxide lightning arrester (1).Temperature susceptibility contact terminal (3) is connected with screw rod (5), and spring (4) is arranged outside screw rod (5).
Claims (2)
1, is with automatic release unit composite sheath AC metal oxide lightning arrester, it is characterized in that being equipped with automatic release unit (2) in the bottom of polymeric metal oxide surge arrester (1).
2, the automatic release unit composite sheath of band according to claim 1 AC metal oxide lightning arrester is characterized in that having in the automatic release unit (2) temperature susceptibility contact terminal (3) to be connected with screw rod (5), and outside screw rod (5) spring (4) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00230175 CN2465286Y (en) | 2000-06-16 | 2000-06-16 | Composite sleeve ac metal oxidate arrester with automatic releaser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00230175 CN2465286Y (en) | 2000-06-16 | 2000-06-16 | Composite sleeve ac metal oxidate arrester with automatic releaser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2465286Y true CN2465286Y (en) | 2001-12-12 |
Family
ID=33593315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00230175 Expired - Fee Related CN2465286Y (en) | 2000-06-16 | 2000-06-16 | Composite sleeve ac metal oxidate arrester with automatic releaser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2465286Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360700A (en) * | 2018-11-05 | 2019-02-19 | 国网上海市电力公司 | A method of make low voltage surge arrester that there is fault indication function |
-
2000
- 2000-06-16 CN CN 00230175 patent/CN2465286Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360700A (en) * | 2018-11-05 | 2019-02-19 | 国网上海市电力公司 | A method of make low voltage surge arrester that there is fault indication function |
| CN109360700B (en) * | 2018-11-05 | 2020-07-14 | 国网上海市电力公司 | Method for indicating fault of low-voltage lightning arrester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |