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| Analysis of Abnormal Dielectric Loss Value in 500kV Transformer High-voltage Bushing |
| Zhang Yun |
| Huizhou Power Supply Bureau of Guangdong Power Gird, Huizhou,Guangdong 516001 |
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Abstract The paper introduced the process of field testing of one abnormal dielectric loss value in 500kV transformer high-voltage bushing,and checking、testing and disintegration in factory.The reason of abnormal dielectric loss value were given,the effectiveness of bushing insulation online monitoring、h igh-voltage dielectric loss testing technology had been verificated.The conclusion of field testing of dielectric loss value in transformer high-voltage bushing was pushed in this article.
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Published: 05 November 2014
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[1] 王少华,方玉群.Garton效应及其对容性设备高压介损测量的影响[J].电工电气,2011(9):51-53.
[2] 黄敏.电容型电流互感器现场高压测介损试验方法探讨[J].上海电力,2008(4):406-409.
[3] 李璠,阎春雨,陈香宇, 等. 电流互感器高压介损现场测量方法的研究[J]. 华北电力技术,2009(5):14-16.
[4] 常美生,郝立俊.电容式电压互感器电容和介损试验的分析[J].电力学报,2009,24(1):28-30.
[5] 徐亮,冯玉柱,冯新岩,顾岩.克服Garton效应的高压介损试验方法[J].高压电器,2012(2):66-70.
[6] Q/CSG114002-2011 电力设备预防性试验规程[S].
[7] 刘超,苏明虹,何松,等.电容式电流互感器额定电压下介质损耗试验分析[J].四川电力技术,2010,33(5):44-46.
[8] SRINIVAS M B,SUZUOKI Y,NAGAO M,et al. Dielectric loss behavior of liquid nitrogein uniform fields millimetergap [J]. IEEE Transactions on Dielectrics and Electrical Insulation,2000,7(2):296-302. |
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2014, Vol. 15 
