Diagnosis Test and Cause Exploration of Internal Discharge in GIS Combination Electrical Appliances
This article focuses on the internal discharge diagnosis test and its causes of GIS composite electrical appliances.Using event analysis as the starting point,elaborates on the causes and solutions of internal discharge.The results showed that through the joint diagnosis of ultrasound and ultra-high frequency partial discharge detection technology,the discharge position was determined to be the arc extinguishing chamber.Upon returning to the factory for disassembly inspection,it was found that the bolts and nuts of the internal closing resistor transmission part had fallen off,causing suspended potential discharge.This is consistent with the conclusion obtained from the detection technology,confirming the effectiveness and reliability of the joint detection.
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