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

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间歇性局部放电引起高压电抗器色谱异常分析

来源:电工电气发布时间:2018-05-09 13:09 浏览次数:572
间歇性局部放电引起高压电抗器色谱异常分析
 
马飞越,伍弘
(国网宁夏电力有限公司电力科学研究院,宁夏 银川 750011)
 
    摘 要:对一起750 kV高压并联电抗器油色谱异常缺陷进行分析。通过长时间色谱在线监测与离线检测分析,判断电抗器中缺陷为间歇性局部放电。利用多手段局部放电联合检测,准确定位缺陷并根据其间歇性特点分析可能的放电原因。对该电抗器进行吊罩检查及实验室模拟试验,验证了缺陷类型、位置及原因。
    关键词:并联电抗器;色谱;间歇性局放;高频局放检测;特高频
    中图分类号:TM47     文献标识码:A     文章编号:1007-3175(2018)05-0054-05
 
Analysis on Abnormal Oil Chromatography Caused by Intermittent Partial Discharge in High Voltage Shunt Reactor
 
MA Fei-yue, WU Hong
(Power Research Institute of State Grid Ningxia Electric Power Co., Ltd, Yinchuan 750011 , China)
 
    Abstract: Analysis was made to the abnormal oil chromatography of a 750 kV high-voltage shunt reactor. By analyzing the long time online monitoring and off-line detection of the oil chromatography, it was judged that the defect in the reactor was intermittent partial discharge. Multiple methods were taken to detect the partial discharge to correctly locate the defect. According to the intermittent characteristics, this paper analyzed the possible causes of the discharge. The defect type, location and reason of the mentioned reactor were verified by the hoist checking and the laboratory simulation.
    Key words: shunt reactor; chromatography; intermittent partial discharge; high frequency partial discharge detection; ultrahigh frequency
 
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