中国电力2017，Vol.50Issue(3)：133-136,4.DOI:10.11930/j.issn.1004-9649.2017.03.133.04
有载分接开关油箱渗漏导致变压器油色谱数据异常诊断
Diagnosis and Treatment of Abnormal Chromatographic Transformer Oil Caused by On-Load Tap Changer Oil Leakage
李予全 1寇晓适 1郑含博 1赵磊 1邵颖彪 1王伟 1谢伟 1张震 2屈少平3
作者信息
- 1. 国网河南省电力公司电力科学研究院,河南郑州450052
- 2. 国网南阳供电公司,河南南阳473032
- 3. 河南恩湃高科集团有限公司,河南郑州 450057
- 折叠
摘要
Abstract
The transformer oil chromatogram can directly reflect whether there exists any fault in the power transformer.Aiming at the problem of abnormal C2H2 in the 220-kV power transformer oil exposed from the chromatographic analysis,the fault diagnosis is carried out on the transformer.However,no sign of faults such as discharge and over-heating are observed through the live line testing.Then by altering the operation conditions of on-load tap changer,the cause is prehminarily determined as the leakage in the oil tanks of both the on-load tap changer and the transformer,which is later verified by the field inspection after equipment shutdown.To explain the source of the characteristic gas in the fault,the mechanism and switching procedures of the on-load tap changer are presented,which tends to provide a new way of thought and relevant experience on the analysis of such problems for the future.关键词
变压器油/色谱分析/带电检测/局部放电/分接开关Key words
transformer oil/chromatographic analysis/live detection/partial charge/on-load tap changer分类
信息技术与安全科学引用本文复制引用
李予全,寇晓适,郑含博,赵磊,邵颖彪,王伟,谢伟,张震,屈少平..有载分接开关油箱渗漏导致变压器油色谱数据异常诊断[J].中国电力,2017,50(3):133-136,4.
