Abstract
In the process of partial discharge detection of high voltage switchgear, the partial discharge detection accuracy of high-voltage switchgear is affected by the external electromagnetic interference in the working field of high voltage switchgear.Research and development of partial discharge anti disturbance system based on switch cabinet,firstly, the causes of four kinds of partial discharge defects in high voltage switchgear and their respective characteristics are analyzed[1][2].Secondly, the advantages, disadvantages and principles of partial discharge defect model detection in switchgear are introduced.Through the experiment of TEV and receiving electromagnetic wave receiver double sensor effectively switch cabinet surface from interference noise and substation switch cabinet on the outer surface of the corona interference based on development[3], realize the effective recognition and separation of switchgear partial discharge and external interference.
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