Title: Analysis and Treatment on Abnormal Secondary Voltage of Capacitor Voltage Transformers
Abstract: In this article,the treatment method in case of abnormal secondary voltage of 500 kV capacitor voltage transformers which just puts into operation for three months is introduced;the abnormal secondary voltage is due to the breakdown of internal grading capacitance in the CVT.Through test of CVT and disassembly inspection,it is proved that the main cause of grading capacitance breakdown is the selection of raw material and manufacturing process.Finally,the suggestions for operation,maintenance and production of 500 kV capacitor voltage transformers have been proposed.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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