A Wireless Synchronization Locating Method for Partial Discharge in Switchgear

Abstract

Aiming at the problem of low efficiency and poor performance in partial discharge locating for a row of switchgears, this paper proposes a locating method based on wireless synchronization technology. By placing TEV monitoring devices on multi-switchgear data of partial discharge could be get, then wireless network is used to synchronize the data of multiple sensors, after that the partial discharge signals of multi-switchgear at the same time could be get and their amplitude could be used for comparison, finally the purpose of “locating to single switchgear” could be achieved. Through hardware design and synchronization logic locating is realized. Then the locating effect of this method is researched by placing artificial defect on different place in switchgears and verify locating results, so that the accuracy and effectiveness of this method could be proved.