电网技术2012，Vol.36Issue(4)：242-246,5.
转轮法试验中复合绝缘子放电现象及泄漏电流特征分析
Research on Discharge Phenomena of Composite Insulators During Tracking Wheel Test and Analysis on Leakage Current Characteristic
方春华 1王建国 1胡聪 1周剑 1操平梅 1王康1
作者信息
- 1. 武汉大学电气工程学院,湖北省武汉市430072
- 折叠
摘要
Abstract
To clarify the discharging phenomena of composite insulators during tracking wheel test and corresponding relation between the leakage current and aging of composite insulator, by use of self-developed tracking wheel test device, the 30 000 cycles aging test on eight short samples of composite insulators using the R-formula is performed. By means of monitoring both surface discharge phenomena and variation of leakage current of the tested composite insulators, it is summarized that the discharge phenomena and variation of leakage current waveform of the tested composite insulators can be roughly divided into four stages： uniform drying, partial discharge, scattered discharge and weak discharge. Analyzing the discharge characteristics and leakage current waveform characteristics in the four stage, it is found that there are certain corresponding relations between the aging extent of tested composite insulators and the variation laws of peak value of leakage current, the third order harmonic and the fifth order harmonic, and the corresponding relations are available for reference to the identification of aging extent of composite insulators during tracking wheel test.关键词
转轮法/泄漏电流/复合绝缘子/老化Key words
tracking wheel test/leakage current/composite insulators/aging分类
信息技术与安全科学引用本文复制引用
方春华,王建国,胡聪,周剑,操平梅,王康..转轮法试验中复合绝缘子放电现象及泄漏电流特征分析[J].电网技术,2012,36(4):242-246,5.
