高寒环境下油浸式互感器电容量与温度的关系  

Relationship between capacitance and temperature of oil-immersed transformer in alpine environment

作　　者：李国强 LI Guoqiang(State Grid Heilongjiang Electric Power Co.,Ltd.Electric Power Research Institute,Harbin 150030,China)

机构地区：[1]国网黑龙江省电力有限公司电力科学研究院,哈尔滨150030

出　　处：《黑龙江电力》2019年第6期509-512,共4页Heilongjiang Electric Power

摘　　要：低温下油浸式互感器的绝缘故障是多种因素综合引起的,在目前的条件下很难探寻故障发生的根本原因,需要在低温下通过试验对绝缘关键参数(介损、电容量)进行观察,总结所产生影响的规律。文章通过试验测定互感器分别在-10℃、-20℃、-50℃时的电容量,得到了互感器电容量与温度的曲线关系,总结了互感器低温运行维护的依据。The insulation fault of oil-immersed transformer at low temperature is caused by comprehensive factors.At present,it is difficult to find out the root cause of the fault.Therefore,it is necessary to observe the key insulation parameters(dielectric loss and capacitance)at low temperature by means of experiments and summarize the laws of influence.The capacitance of the transformer at-10℃,-20℃and-50℃are measured through experiments.The curve relationship between the capacitance value of the transformer and the temperature is obtained,and the basis for the low-temperature operation and maintenance of the transformer is summarized.

关 键 词：高寒环境 互感器 绝缘 电容量 

分 类 号：TM452[电气工程—电器]