Normal-pressure environmental protection air switch cabinet

Abstract

The invention discloses a normal-pressure environmental protection air switch cabinet comprising a cabinet body, wherein the upper part of the cabinet body is provided with an isolation three-stationand an isolation knife, the isolation three-station comprises three circuit breakers arranged in parallel, the upper ends of the circuit breakers are connected to a main bus-bar, the lower ends of thecircuit breakers are connected to a circuit breaker transmission box, the circuit breaker transmission box is connected to a lower outlet copper plate that is connected to an outlet sleeve, the isolation knife is connected to an isolation operating shaft, the opposite sides of the isolation knife are respectively provided with grounding contacts and main circuit static contacts, the main circuitstatic contacts are arranged on the circuit breakers, the circuit breaker transmission box is connected to a circuit breaker mechanism, the isolation operating shaft is connected to an isolation mechanism, a cable compartment is arranged below the cabinet body, and the end of the outlet sleeve extends into the cable compartment. The purpose is to provide a normal-pressure environmental protectionair switch cabinet having reasonable internal layout and smaller overall cabinet size for wider range of applications.

Description

technical field [0001] The invention relates to a switchgear for a high-voltage electrical appliance, in particular to an air-insulated switchgear for effectively disconnecting a switch in a power transmission and distribution cabinet without the need for a normal pressure of an air box. Background technique [0002] The 12kV switchgear widely used in the existing market is mainly based on SF6 insulation and isolation under solid insulation, or an environmentally friendly air cabinet with an air box, which requires positive pressure nitrogen for insulation. The unreasonable internal layout of the above-mentioned environmental protection air cabinet results in a large size of the entire cabinet and a small scope of applicable environments. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a cabinet with a reasonable internal layout and a smaller size of the whole cabinet, so that it can be applied to a wider range o...

AI Technical Summary

Problems solved by technology

The internal layout of the above-mentioned environmental protection air cabinet is unreasonable, resulting in a large size of the entire cabinet and a small range of applicable environments

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