GIS Series-resonant Voltage Test and Case Analysis
Gas insulated switchgear(GIS)has many advantages over conventional open switchgear,such as small footprint,high operational reliability,and strong anti pollution flashover ability.In recent years,it has been widely used in power systems.The insulation level of GIS is one of the most important test items for on-site handover testing.Generally,the insulation level of GIS equipment is evaluated through series resonance testing on site.This article provides a detailed introduction to the method and process of conducting series resonance testing on GIS equipment on site,and analyzes the role of series resonance withstand voltage testing in discovering abnormal situations inside GIS through case studies.
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