Drawer-type switch cabinet with arc extinguishing device

Abstract

The invention discloses a drawer-type switch cabinet with an arc extinguishing device, and the switch cabinet comprises a cabinet body which is provided with a plurality of grooves, wherein the interior of each groove is provided with a static contact; a plurality of drawers which are arranged in the groove of the cabinet body, wherein moving contacts are arranged on the sides, making contact withthe static contacts, of the drawers, moving contact connectors are arranged on the sides, opposite to the sides connected with the drawers, of the moving contacts, and the moving contacts are connected with the static contacts in an inserted mode; a travel switch which is arranged at the bottom end of the moving contact connector and is used for controlling the operation of the arc extinguishingdevice; an arc extinguishing device which is arranged on the static contact and is used for extinguishing an arc generated when the moving contact and the static contact are separated; and a pneumatichose which is connected with the arc extinguishing devices on the plurality of drawers, wherein one end of the pneumatic hose, which is not connected with the arc extinguishing devices, is connectedwith an air storage tank. By removing the interlocking mechanism, the equipment cost and the operation complexity coefficient are reduced, and by arranging the arc extinguishing device, the equipmentis prevented from being damaged by electric arcs.

Description

technical field [0001] The invention relates to the field of low-voltage switchgear manufacturing, in particular to a drawer-type switchgear with an arc extinguishing device. Background technique [0002] With the development of my country's national economy, the rapid development of all walks of life has also brought more and more demand for basic products such as power distribution equipment. As a link between the past and the future, it occupies a large proportion of applications in various industries such as infrastructure construction, which leads to more industry changes, and puts forward higher requirements for the production of power distribution equipment. Among them, the modular and drawer-type low-voltage withdrawable switchgear is the most widely used, because it is easy to replace if it is damaged, and each drawer operates independently from each other, and the replacement will not affect the operation of other equipment. [0003] The contacts of the low-voltage...

AI Technical Summary

Problems solved by technology

This method increases the interlocking equipment, and the overall cost increases; the structure of the interlocking equipment is complex, and it is easy for impatient or unskilled personnel to misuse or use brute force to break the mechanism during operation and maintenance. In an emergency, the current cannot be broken in time, which increases the cost of operation and maintenance

These problems have a great impact on the long-term stable operation of low-voltage withdrawable switchgear, the daily maintenance of operation and maintenance personnel, and the after-sales maintenance of equipment manufacturers.

Images