HE SHENG-HONG. Additional Error Analysis of 500kV CVT Dielectric Loss testing in Non-Open Wire case. [J]. Power capacitor & reactive power compensation, 2009, 30(6): 42-44.
HE SHENG-HONG. Additional Error Analysis of 500kV CVT Dielectric Loss testing in Non-Open Wire case. [J]. Power capacitor & reactive power compensation, 2009, 30(6): 42-44.DOI:
不拆线测试500kV CVT介损的附加误差分析
摘要
通过对不拆线测试CVT介损的具体分析
得出由于线路接地刀闸接触不良而产生一附加电阻Rd
由于Rd的影响使测量结果偏大。建议在进行CVT介质损耗不拆线测试时
应检查接线是否接触良好
特别是线路接地刀闸接触是否良好
以免影响测量结果。
Abstract
In this paper
through specific analysis of CVT dielectric loss testing in non-open wire case
the cause of larger measurement results is obtained
because of the additional resistance Rd generated by the imperfect contact of line earthing switch.It is suggested that during dielectric loss measurement in CVT non-open wire case
the wiring shall be checked good or not
especially the contact of line earthing switch
so as not to affect the measurement results.
关键词
CVT不拆线试验接地刀闸介质损耗
Keywords
CVTNon-open wire testEarthing switchdielectric loss