Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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一起特殊结构的110 kV CVT故障诊断与分析

来源:电工电气发布时间:2018-08-16 10:16 浏览次数:593
一起特殊结构的110 kV CVT故障诊断与分析
 
罗杨,刘彦琴,杨新春,彭晓娟,邱炜,田子山
(国网成都供电公司,四川 成都 610041)
 
摘 要:针对一种老式电容式电压互感器(CVT)出现的二次失压情况,进行了诊断试验,并根据其结构特点进行了分析和综合判断,发现其电磁单元避雷器老化击穿,从而导致CVT二次失压。建议制造厂改进设计,将电磁单元变压器的一次端通过小套管引出,便于用户对其进行试验。
关键词:电容式电压互感器;电容量;介损;变比;故障诊断
中图分类号:TM451+.2 文献标识码:B 文章编号:1007-3175(2018)08-0055-04
 
Fault Diagnosis and Analysis on 110 kV Constant Voltage Transformer with Special Structure
 
LUO Yang, LIU Yan-qin, YANG Xin-chun, PENG Xiao-juan, QIU Wei, TIAN Zi-shan
(State Grid Chengdu Supply Power Company, Chengdu 610041, China)
 
    Abstract: In view of secondary circuit voltage loss situation of a kind of outdated capacitor voltage transformer (CVT), the diagnostic test was carried out. According to the structural features of the CVT, this paper performed the analysis and synthesis judgment, finding that the serious aging of arrester led to the secondary circuit voltage loss It is suggested that the manufacturer should improve the design and bring the primary end of electromagnetism element transformer out of a small drivepipe to be convenient for users to carry out tests.
    Key words: capacitor voltage transformer; capacitance; dielectric loss; ratio of transformation; fault diagnosis
 
参考文献
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