Application of vacuum helium mass spectrometer leak detector for power switchgear

Medium-voltage switchgear is a kind of equipment widely used in the power industry. It is commonly seen in power plants, substations, regional power grids, transmission stations and other places, and is also applicable to industries such as ships and high-speed railways. The switchgear adopts a metal-enclosed structure, which can effectively isolate equipment other than the medium-voltage switch, prevent the electric arc from burning through the power equipment, and ensure the safety of power use.

The inside of the medium-voltage switchgear works by means of suction and switch control circuits.

In the medium-voltage switchgear, the switch suction device plays a key role and needs to be leak-tested. The inside of the suction device is in a vacuum environment. If there is an air leakage problem, the suction switch will fail, resulting in power interruption and possibly causing accidents. Therefore, it is a necessary step to use a helium mass spectrometer leak detector to conduct leak detection on medium-voltage switchgear.