500kV高压并联电抗器故障分析及处理
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摘要
为解决某500 k V变电站高压并联电抗器乙炔超标的问题,利用油色谱及超声波局放检测相结合的方法,对故障类型和位置进行分析判断,得出乙炔超标是由悬浮放电产生的结论,并利用超声法对故障点位置进行准确定位。排油内检后验证了分析结论的正确性。最后,结合实际情况提出了相应的处理措施和反事故措施。
To solve the problem of excessive acetylene for high-voltage shunt reactor in 500 k V substations, the fault type and location are analyzed and judged by means of the combining method of oil chromatographic analysis and ultrasonic partial discharge. Inspection results indicate that the cetylene is produced by suspended discharge, and the fault point is accurately positioned by the ultrasonic method. With the oil discharged, internal checking results verify the correctness of the previous conclusion. Finally, combined with actual situation, treatment measures and anti-accident measures are put forward.
To solve the problem of excessive acetylene for high-voltage shunt reactor in 500 k V substations, the fault type and location are analyzed and judged by means of the combining method of oil chromatographic analysis and ultrasonic partial discharge. Inspection results indicate that the cetylene is produced by suspended discharge, and the fault point is accurately positioned by the ultrasonic method. With the oil discharged, internal checking results verify the correctness of the previous conclusion. Finally, combined with actual situation, treatment measures and anti-accident measures are put forward.
引文
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[5]徐亮,顾岩,郭延龙.两种检测方法联合诊断电抗器放电故障[J].山东电力技术,2013,40(6):21-23.
[2]魏东亮,肖魁欧.蔺河500 k V变电站蔺廉线电抗器油色谱异常原因分析及故障处理[J].河北电力技术,2003,22(4):38-40.
[3]DLT 722—2000变压器油中溶解气体分析和判断导则[S].
[4]付汉江,周涛,刘欢.用气相色谱分析法诊断电抗器故障[J].电力设备,2005,6(6):59-62.
[5]徐亮,顾岩,郭延龙.两种检测方法联合诊断电抗器放电故障[J].山东电力技术,2013,40(6):21-23.