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Rainproof device of sulfur hexafluoride density relay

A technology of density relays and sulfur hexafluoride, which is applied in circuits, electric switches, electrical components, etc., can solve problems such as leakage, breakdown, and degradation of sealing performance

Inactive Publication Date: 2015-01-21
STATE GRID CORP OF CHINA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The density of sulfur hexafluoride gas has a great influence on the insulation and breaking and arc extinguishing performance of high-voltage products. Leakage of sulfur hexafluoride gas will lead to a decrease in the electrical performance of electrical equipment, and in severe cases, it will cause flashover and breakdown of electrical equipment , or even explode, seriously affecting the safe operation of the power grid and the safety of operation and maintenance personnel
Some manufacturers design 220kV circuit breakers with external sulfur hexafluoride density relays without rainproof devices. Long-term exposure to wind and rain erosion leads to reduced sealing performance, and inaccurate or even damaged measurements due to water ingress

Method used

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  • Rainproof device of sulfur hexafluoride density relay

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Embodiment Construction

[0017] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0018] A rain-proof device for sulfur hexafluoride density relays, comprising: a rain-proof cover 1 snapped onto the rear cover 2 of the rain-proof cover 1, arranged on the rain-proof cover 1 and used for accommodating sulfur hexafluoride circuit breakers and hexafluoride The first accommodating groove for the connecting wires between the sulfur hexafluoride density relays is provided on the rear cover 2 and used for accommodating the second accommodating groove for the connecting wires between the sulfur hexafluoride circuit breaker and the sulfur hexafluoride density relays.

[0019] The rainproof cover 1 and the rear cover 2 are provided with corresponding buckles 3 . As a preference, there are three buckles 3. Through the buckle 3 of the rain cover 1 and the rear cover 2, the outlet pipe of the sulfur hexafluoride density relay, the ...

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Abstract

The invention discloses a rainproof device of a sulfur hexafluoride density relay. The rainproof device comprises a rain hood, a rear cover clamped to the rain hood, a first containing groove and a second containing groove, wherein the first containing groove is formed in the rain hood and used for containing a connecting wire between a sulfur hexafluoride circuit breaker and the sulfur hexafluoride density relay, and the second containing groove is formed in the rear cover and used for containing the connecting wire between the sulfur hexafluoride circuit breaker and the sulfur hexafluoride density relay. The rainproof device of the density relay is compact in structure, convenient to mount, good in rainproof performance, simple in structure, low in cost and suitable for being used in the sulfur hexafluoride circuit breaker.

Description

technical field [0001] A rainproof device, in particular a rainproof device for a density relay in a sulfur hexafluoride breaker. Background technique [0002] Sulfur hexafluoride is a non-toxic, odorless and colorless gas with good insulation properties, arc extinguishing performance and chemical stability, and is widely used in high-voltage power equipment, such as circuit breakers, transformers and GIS equipment. The density of sulfur hexafluoride gas has a great influence on the insulation and breaking and arc extinguishing performance of high-voltage products. Leakage of sulfur hexafluoride gas will lead to a decrease in the electrical performance of electrical equipment, and in severe cases, it will cause flashover and breakdown of electrical equipment , or even explode, seriously affecting the safe operation of the power grid and the safety of operation and maintenance personnel. In order to ensure the safe and stable operation of sulfur hexafluoride electrical equi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H35/26H01H9/04
CPCH01H35/26H01H9/04
Inventor 姚新年赵敏曹飞翔张卫义孙式想许密密唐春香张保红张兵张宇赵后岩
Owner STATE GRID CORP OF CHINA
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