Air chamber of a circuit breaker and double isolated feeder cabinet with the air chamber of the circuit breaker

Abstract

The invention relates to a breaker air chamber and a double-isolation feed line cabinet with the breaker gas chamber. Direct-acting isolation switches are arranged at the right sides of solid-sealed polar poles along a vertical direction inside the casing of the breaker air chamber. Each three-station isolation switch comprises a conductor, a static contact and a moving contact which are electrically connected with buses of each row of sockets, and a lead screw mechanism fixedly connected with the moving contact for realizing a main loop conduction function, an isolation function and a grounding function. The three-station isolation switches and bus three-station isolation switches arranged on the buses commonly exhibit a double-isolation effect, projections of the solid-sealed polar poles towards the right are disposed on the isolation switches, through such arrangement of the isolation switches, the height space between the solid-sealed polar poles and bottom sockets is effectively utilized, preservation of space for mounting the isolation switches in the height direction inside the casing in the prior art is unnecessary, the height of the breaker air chamber is reduced, and the possibility of mounting the isolation switches at a line side is realized.

Description

technical field [0001] The invention relates to a circuit breaker air chamber and a double isolated feeder cabinet with the circuit breaker air chamber. Background technique [0002] With the continuous development of switch technology, miniaturized and intelligent switch equipment is more and more favored by users. In recent years, various switch manufacturers have also taken miniaturization and intelligent switches as their development direction. Under the guidance of this development direction, a new type of switchgear, that is, gas-insulated closed switchgear, has come out. The core components of the switchgear are sealed in the gas box, and the insulation performance of the equipment is guaranteed by insulating gas. Therefore, the requirements for the air chamber are mainly reflected in reliable operation, good air tightness, low leakage rate, small deformation of the box, good stability, and convenient installation and debugging. The invention patent of Chinese paten...

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Problems solved by technology

[0003] The invention provides a circuit breaker air chamber which solves the problem of high box height in the prior art due to the spaced arrangement of the isolating switch and the solid-sealed pole, the inner cone connection socket of the incoming line and the inner cone connection socket of the outgoing line. , and the object of the present invention is also to provide a feeder cabinet with the air chamber of the circuit breaker

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