励磁变压器故障原因分析与防范措施 

奚占新 
大唐国际张家口发电厂，河北 张家口 075133 
 

摘 要： 对近年来励磁变压器所发生的故障进行归类，通过一些实例列出了电流互感器(CT)故障、测温点故障、进水接地故障、接头发热故障、线圈内部发生短路故障、其他混合型绝缘故障等故障类型，分析了产生这些故障的原因，并制定了相应的防范措施，确保机组安全稳定运行。
关键词： 励磁变压器；故障；防范措施
中图分类号：TM411+.2 文献标识码：B 文章编号：1007-3175(2013)09-0045-03

Failure Analysis and Prevention Measures of Excitation Transformer 

XI Zhan-xin 
Datang International Zhangjiakou Power Plant, Zhangjiakou 075133, China 
 

Abstract: The excitation transformer faults in recent years were classified. This paper gave current transformer (CT) fault, fault at the point of temperature measurement, ground fault because of wetting, coupling head heating fault, short circuit fault inside excitation transformer coil and other mixed type insulated fault via some examples. Analysis was made to the above causes and
the corresponding preventive measures were set down to ensure safe and stable operation of the generator sets.
               Key words: excitation transformer; fault; prevention measure

参考文献
[1] 孙富根，陈海军.机组励磁变故障原因分析和防范措施[J].电力安全技术，2010，12(5)：25-27.
[2] 华北电网有限公司.电力设备交接和预防性试验规程[S].北京：中国电力出版社，2008.