勵磁變壓器故障原因分析與防范措施
奚占新
大唐國際張家口發電廠，河北 張家口 075133
摘 要： 對近年來勵磁變壓器所發生的故障進行歸類，通過一些實例列出了電流互感器(CT)故障、測溫點故障、進水接地故障、接頭發熱故障、線圈內部發生短路故障、其他混合型絕緣故障等故障類型，分析了產生這些故障的原因，并制定了相應的防范措施，確保機組安全穩定運行。
關鍵詞： 勵磁變壓器；故障；防范措施
中圖分類號：TM411+.2 文獻標識碼：B 文章編號：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
參考文獻
[1] 孫富根，陳海軍.機組勵磁變故障原因分析和防范措施[J].電力安全技術，2010，12(5)：25-27.
[2] 華北電網有限公司.電力設備交接和預防性試驗規程[S].北京：中國電力出版社，2008.
