摘要
介质损耗测量的难点之一是不易得到长时期稳定的测量数据。本文论述了以往常用的介质损耗测量方法及其存在问题，提出了可以解决这些问题的介质损耗测量新方法，即过零点电压比较法，并介绍了该方法的测量基本原理，实现的基本线路，分析了理论测量误差，以及在廊坊供电局大屯２２０ｋＶ变电站高压电气设备绝缘在线监测的情况。
The difficulty of on-line continuous di-dectric loss measurement is to obtain stable data with-in long period of time. This paper discusses the tradi-tional dielectric loss measuring methods and theirshortcomings,expecially in field measurement.In or-der to solve this problem,the authors developed a newconcept on dielectric loss measuring method based onzero cross point voltage comparing。Its measuringprinciple and circuitry are presented.After laboratorytest,this method is applied on high voltage equipmenton-line monitoring system in Datun 220kV substationof Langfang Power Bureau,North China Power Ad-ministration,and it is proved that this new method iseffective.
出处
《电网技术》
EI
CSCD
北大核心
1995年第10期1-5,共5页
Power System Technology
关键词
介质损耗
过零点电压比较
测量
电力系统
Dielectric loss On-line monitoring Zero cross point voltage comparing method
