Switch cabinet pressure relief device and switch cabinet

Abstract

The invention relates to a switch cabinet pressure relief device and a switch cabinet. The switch cabinet includes a cabinet body and a switch cabinet pressure relief device arranged on the top of the cabinet body. The switch cabinet pressure relief device includes a device frame with a pressure relief channel. The top surface of the device frame is provided with a pressure relief cover. Arc suppression structure, the arc suppression structure includes baffles arranged in layers along the axis of the pressure relief channel, the baffles of each layer are arranged at intervals, two adjacent layers of baffles are arranged alternately The channel axes have overlapping portions. By layering the baffles in the pressure relief channel along the axis of the pressure relief channel, the arc will be sprayed on the baffle before it is sprayed out along the pressure relief channel, and the baffles will slow down the force of the arc's outward spraying, and part of the The arc is directly extinguished in the pressure relief device, and part of the arc may still be ejected, but the ejection force is greatly weakened, so it is not easy to damage the surrounding objects, and it will not easily injure personal safety. to safety hazards.

Description

technical field [0001] The invention relates to a switch cabinet pressure relief device and a switch cabinet. Background technique [0002] During the operation of the switchgear, due to various reasons such as insulation aging, human error, etc., a circuit short circuit fault will occur. Under the short-circuit current of tens of thousands of amperes, high-temperature and high-pressure gas will be generated instantaneously. Effective release within a certain period of time may cause the switchgear to explode, damage adjacent switchgears, and even endanger personal safety. Therefore, when designing the switchgear, effective pressure relief measures must be considered. [0003] At present, there are many pressure relief measures for switchgear. For example, the high-voltage switchgear anti-temperature rise device disclosed in the Chinese utility model patent with the authorized announcement number CN207134680U is a pressure relief device, including the device frame, the top ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a pressure relief device for switchgear to solve the problem that the existing pressure relief device cannot effectively protect the arc, and the surrounding objects are easily damaged or personal safety is damaged after the arc is ejected; at the same time, the present invention also provides A switchgear is developed to solve the problem that the existing switchgear pressure relief device cannot effectively protect the arc, and the arc is easy to damage the surrounding objects or personal safety after the arc is ejected, which leads to the safety hazard of the switchgear during use

Images