高压电器2011，Vol.47Issue(12)：76-79,85,5.
SF6绝缘电流互感器放电性缺陷带电检测方法的分析
Analysis on Two Live Detection Methods of Discharge Fault in SF6 Current Transformer
孙利朋 1毛柳明 1刘兴文 1卢杰2
作者信息
- 1. 湖南省电力公司科学研究院,长沙410007
- 2. 湖南省电力公司岳阳电业局,岳阳414000
- 折叠
摘要
Abstract
Normal test items for SF6 current transformers are insufficient for diagnosing internal discharge fault in this kind of transformers. This paper analyzes the causes of discharge fault in SF6 current transformers, and introduces two alive detection methods of discharge and their principles. Taking a discharge fault in a SF6 current transformer for example, the features of the ultrasonic partial discharge detection method and the SF6 gas component analysis method are analyzed. The result shows that the former method can be used for preliminary determination of discharge fault through contrasting the discharge waveforms of normal phase and fault phase, and the latter one can be employed to determine the degree of discharge in the transformer according to diagnostic gas contents.关键词
SF6绝缘电流互感器/放电性缺陷/带电检测/超声波局部放电/SF6气体成分分析Key words
SF6 current transformer/discharge fault/live detection/ultrasonic partial discharge/SF6 gas component analysis分类
信息技术与安全科学引用本文复制引用
孙利朋,毛柳明,刘兴文,卢杰..SF6绝缘电流互感器放电性缺陷带电检测方法的分析[J].高压电器,2011,47(12):76-79,85,5.
