摘要
分析辽宁电网变压器直流偏磁问题产生的原因及危害,并针对现场直流偏磁检测方法中存在的不足,结合智能运检建设需求,研发了一种变压器直流偏磁在线监测系统;目前该系统已经在辽宁徐家500 kV变电站得到应用,有效提升了该变电站2组主变压器的运行可靠性。
It analyzes the causes and hazards of DC magnetic biasing of transformerin Liaoning power grid,and according to the disadvantages existed in detection methods of online DC biasing,combined with the construction demand of intelligent operation inspection,an online monitoring system for the DC magnetic biasing of transformer has been developed.Now the system has been used in Liaoning Xujia 500 kV substations,which improved the operation reliability for two sets of main transformer.
作者
王茂军
刘齐
WANG Maojun;LIU Qi(Yingkou Institute of Science and Technology,Yingkou,Liaoning 115014,China;Electric Power Research Institute of State Grid Liaoning Electric Power Co.,Ltd.,Shenyang,Liaoning 110006,China)
出处
《东北电力技术》
2023年第2期11-14,共4页
Northeast Electric Power Technology
关键词
高压直流输电
变压器
直流偏磁
在线监测
high voltage direct current
transformer
DC magnetic biasing
online monitoring
