Diagnosis and Analysis of Nearby Short-circuit Impact on Transformer
Zou Guo-pin, Epc Electric · Gaoya dianqi · 2013
Nearby short-circuit impact is the main reason of transformer damage, so diagnosing the transformer's status and choosing suitable management strategy are significant. This paper introduces a transformer accident of winding severe deformation caused by nearby short-circuit impact. By analyzing the dates of oil chromatographic, 3 phases' operation currents, short impedance, DC resistance, capacitance and frequency response curves, transformer winding deformation is conformed. The succeeding transformer disassembling indicates the effectiveness of diagnosis and analysis.