Cable rear connection type gas-insulated switchgear

Abstract

The invention provides a cable rear connection type gas-insulated switchgear which comprises a gas box chamber, an operating mechanism chamber, an instrument chamber, a cable chamber and a pressure release chamber. The operating mechanism chamber and the instrument chamber form a front cabinet of the gas-insulated switchgear, the cable chamber forms a rear cabinet of the gas-insulated switchgear, and the gas box chamber and the pressure release chamber are located between the front cabinet of the gas-insulated switchgear and the rear cabinet of the gas-insulated switchgear. The cable chamber is arranged at the rear part of the gas-insulated switchgear, so that the cabinet door is prevented from being opened when an arc fault occurs in the cable chamber, and an operator in front of the cabinet is prevented from being hurt, and on the other hand, the cable chamber is independently arranged at the rear part of the cabinet body, so that the mounting operation space of a cable can be enlarged, and the operator can conveniently, accurately and quickly install the cable.

Description

technical field [0001] The invention relates to the field of inflatable cabinets, in particular to a cable rear-connected inflatable cabinet. Background technique [0002] With the continuous and rapid development of electrical equipment and power supply and distribution systems, the application of inflatable cabinets is becoming more and more extensive, and people's requirements for the safety performance of inflatable cabinets are also gradually increasing. During the operation of the inflatable cabinet, a series of equipment failures such as insulation aging and overvoltage often occur, and these faults may cause arc faults inside the inflatable cabinet. When such a failure occurs, the gas pressure in the equipment will rise sharply in a short period of time, and even cause the cabinet to explode, threatening the safety of the operator. The cable chambers of the existing inflatable cabinets are all set at the front of the cabinet body. Although the cabinet body is equipp...

AI Technical Summary

Problems solved by technology

The cable chambers of the existing inflatable cabinets are all set at the front of the cabinet body. Although the cabinet body is equipped with a pressure release chamber, when an arc fault occurs inside the cabinet body, it is very likely that the pressure release chamber cannot be released due to on-site installation problems. Insufficient pressure or pressure relief speed will open the door panel of the cable room, thereby threatening the safety of operators; The installation height is very limited during wiring, which affects the installation quality of cable wiring

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