A vacuum circuit breaker for high-cold area based on boosting reaction

Abstract

The invention discloses a vacuum circuit breaker for high-cold area based on boosting reaction, its structure includes circuit breaker main body, Circuit break mounting bracket, Insulator, open / closedrive lever, knife separator, isolation knife, As that vacuum circuit break is provided with a knife separate device, When the worker needs to overhaul the circuit breaker and switch it on or off, Asthat heat generate by the compressed air of the thermally pressurize structure causes the frozen water vapor to undergo liquefaction reaction, At this time, that work personnel can easily separate theknife of the circuit breaker from the contact part at the top of the insulator, the force of the switch is not pry open by other tools, the working efficiency is improved, the wear of the knife jointcaused by the pry tool is avoided, and the service life of the circuit breaker is prolonged, so that the contact part of the circuit breaker and the contact part at the top of the insulator are separated.

Description

technical field [0001] The invention relates to the technical field of power grid construction, in particular to a vacuum circuit breaker for alpine regions based on supercharging reaction. Background technique [0002] With the rapid development of the national economy and power industry, the start of national key projects and the promotion of urbanization, the construction of smart grids in plateau and cold areas has been gradually improved. In order to ensure the safe operation of the power system, most of them are protected by circuit breakers. However, the current technical considerations are not perfect, and it has the following disadvantages: the high altitude and low temperature in the plateau alpine region cause the water vapor at the closing position to solidify after the switch of the circuit breaker is closed. At this time, the switch knife and insulator are frozen after being solidified by water vapor Bonded together, in order to ensure the safety of the staff d...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the national economy and power industry, the start of national key projects and the promotion of urbanization, the construction of smart grids in plateau and cold areas has been gradually improved. In order to ensure the safe operation of the power system, most of them are protected by circuit breakers. However, the current technical considerations are not perfect, and it has the following disadvantages: the high altitude and low temperature in the plateau alpine region cause the water vapor at the closing position to solidify after the switch of the circuit breaker is closed. At this time, the switch knife and insulator are frozen after being solidified by water vapor Bonded together, in order to ensure the safety of the staff during the maintenance process, the isolation knife switch needs to be separated. At this time, it is necessary to use other tools to pry open or consume a lot of effort to separate the switch knife. At the same time, it is easy to speed up the switch knife by frequent operation. Wear at the connections shortens the service life of the circuit breaker

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