新安装110kV变压器绕组介损值偏大的原因分析Cause Analysis on Overlarge Dielectric Loss of the winding of Newly-installed 110 kV Transformer
夏强峰,屠晔炜,蒋政,袁均祥,周咏槟
XIA Qiangfeng,TU Yewei,JIANG Zheng,YUAN Junxiang,ZHOU Yongbin
摘要(Abstract)：
简单介绍了变压器绕组介损测试原理,针对3台新安装的110 kV变压器绕组介损的现场实测数据比出厂数据偏大130%的情况进行了对比分析,并结合现场试验的经验,分析了可能引起介损值略偏大的原因,提出了具体判定建议,变压器投运后的运行情况表明判断合理有效。
The paper briefly introduces dielectric test philosophy of transformer winding. Aiming at the field measured dielectric loss of windings of three newly-installed 110 kV transformers is 130 percent larger than the default data, the paper analyzes the causes for overlarge dielectric loss by comparative analysis and combing the experience in field test. In addition, the paper puts forward specific suggestions for judgment.The operating condition of the transformer shows that the judgment is reasonable and effective.
关键词(KeyWords)：
变压器;介损;绝缘;缺陷;试验
transformer;dielectric loss;insulation;defect;test
基金项目(Foundation):
作者(Author):
夏强峰,屠晔炜,蒋政,袁均祥,周咏槟
XIA Qiangfeng,TU Yewei,JIANG Zheng,YUAN Junxiang,ZHOU Yongbin
DOI: 10.19585/j.zjdl.2014.01.002
参考文献(References)：
- [1]杨殿成.大型变压器绕组介损因数测量探讨[J].电工技术,2012(4):17-18.
- [2]陈化钢.电力设备预防性试验方法及诊断技术[M].北京:中国科学技术出版社,2001.
- [3]刘长明.某220 kV主变压器介损超标原因分析及处理[J].高电压技术,2007,3(33):178-185.
- [4]姜学彦,顾克拉,董雪松.220 kV主变本体介损异常的处理[J].变压器,2004,2(41):35-37.
- [5]黄宝新,黄英晓.一例变压器介损问题的分析和处理[J].电气制造,2009(11):48-51.
- [6]GB 50150-2006电气装置安装工程电气设备交接试验标准[S].北京:中国电力出版社,2006.
- [7]陈济,刘鸿斌,刘连睿,等.对变压器抽真空及注油方法的改进[J].华北电力技术,2009(12):31-33.
- [8]DL/T 596-1996电力设备预防性试验规程[S].北京:中国电力出版社,1996.
- [9]Q/GDW-11-120-2007输变电设备状态检修试验规程[S].北京:中国电力出版社,2007.