Analysis on reasons of abnormal oil dielectric dissipation factor and the treatments

Abstract

Abstract: The measurement value of the oil dielectric dissipation factor of the Huadian International Zouxian Power Plant has larger dispersibility, and electric discharge phenomena occurred in the measurement. According to the analysis of the collected data, it was determined that the reason of the larger variation of the measured value is the fault in the 2801 type electrical bridge. After the lead column joint of the oil cup of 2801 type electrical bridge was replaced, the measured data of the oil dielectric factor became stable, and the internal electric discharge was solved effectively.

Key words: oil dielectric dissipation factor, measurement, 2801 type electrical bridge, shield, interference

WANG Hongming;LI Qingchang;SUN Chengjun. Analysis on reasons of abnormal oil dielectric dissipation factor and the treatments[J]. Huadian Technology, 2011, 33(2): 38-40.

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Analysis on reasons of abnormal oil dielectric dissipation factor and the treatments

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