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Tank type circuit breaker and its static end gas shielding device

A circuit breaker, tank-type technology, applied in the direction of the contact shell/screen, etc., can solve the problems of the insulation capacity decline and deformation of the tank body, and achieve the effect of ensuring the insulation level.

Inactive Publication Date: 2018-08-24
PINGGAO GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a gas shielding device at the static end of a tank circuit breaker to solve the technical problem that the existing gas shielding device is easily deformed under high pressure, resulting in a decrease in the insulation capacity of the tank body

Method used

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  • Tank type circuit breaker and its static end gas shielding device

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Embodiment Construction

[0016] Embodiments of the gas retaining device at the static end of the tank circuit breaker of the present invention: as figure 1 As shown, the gas shielding device at the static end of the tank circuit breaker includes a static insulating support 3, one end of the static insulating support 3 is connected to the tank body 1 of the tank circuit breaker, and a static contact seat 2 is installed on the other end of the static insulating support 3 , gas shield 4, static contact seat 2 is provided with exhaust hole 6 upwards, and gas shield 4 is provided with the pressure relief hole 43 that communicates with the exhaust hole 6 of static contact seat 2. The gas shield 4 includes a cover body 42 with an inner cavity on the outer peripheral direction of the static contact seat and a connecting portion 41 at the bottom of the static contact seat for connecting with the static insulating support 3 . The cover body 42 is cylindrical, with an opening facing the moving end of the circuit...

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Abstract

The invention discloses a tank-type breaker and a static-end air retaining device thereof. The static-end air retaining device of the tank-type breaker comprises a static insulated supporter, wherein a static contact base and an air retaining hood are arranged on the static insulated supporter; an exhaust hole is formed in the static contact base; and a pressure relief hole which is communicated with the exhaust hole in the static contact base is formed in the air retaining hood. The pressure relief hole is added to the air retaining hood; and hot airflow sprayed from an opening of the static contact base does not cause deformation of the air retaining hood due to over-high pressure in the air retaining hood, so that the insulating level of the breaker is ensured.

Description

technical field [0001] The invention relates to the technical field of circuit breakers, in particular to a tank type circuit breaker and a static end gas retaining device thereof. Background technique [0002] As a kind of high-voltage circuit breaker, tank circuit breaker is widely used in power system at present. In the process of assembling the static contacts of the tank circuit breaker, an insulating platform is commonly used to support the bearing seat of the static contact, which is also called the static contact seat. In order to prevent the high-temperature gas containing metal vapor from affecting the insulation during breaking, there are currently two forms of the static end structure of the tank circuit breaker. One is that there is no gas blocking device at the static end, and it is necessary to increase the volume of the tank to increase the gas channel to ensure The hot air flow generated by the disconnection can be sprayed on the tank body after cooling dow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H1/64
CPCH01H1/64
Inventor 何保营郭煜敬金光耀沙云鹏王志刚李丽娜裴涛朱国明
Owner PINGGAO GRP
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