交直流电压条件下GIS局部放电检测对比研究

doi:10.11930/j.issn.1004-9649.2014.3.125.4

摘要/Abstract

摘要： 为了探寻一种较为有效的检测GIS内金属导电微粒类典型缺陷的方法,建立了一套模拟GIS交流电压下和正、负极性直流电压下局部放电检测平台。利用脉冲电流法、超声波检测法对局部放电信号进行检测,获得大量实验数据和图谱进行比较分析。通过分析研究,提出了利用正极性直流电压下局部放电检测法对金属导电微粒类缺陷进行检测,该检测方法对金属导电微粒类缺陷最为有效,能够及时发现该类典型缺陷,且对GIS绝缘性能破坏小,具有良好的实际应用价值。

关键词: 局部放电, 金属导电微粒, 脉冲电流法, 超声波检测法

Abstract: In order to explore an effective method for detecting the typical defects of metal conductive particles in GIS, using the simulation GIS to establish a set of partial discharge detection platform under AC voltage and DC voltage. Application of the ERA and the UT to carry out the measurement of partial discharge signals, then access to a large number of experimental data and maps and comparative analysis. We propose a method by analyzing for detecting the typical defects of metal conductive particles using partial discharge detection under positive DC voltage. This detection method is the most effective to the typical defects of metal conductive particles. It can discover the typical defects in time and has a little damage to the insulating properties of GIS, so that it has important application value.

Key words: partial discharge, the metal conductive particles, electrical research association, ultrasonic testing

中图分类号:

马宏明, 周年荣, 肖丹, 谭向宇, 李璟瑞. 交直流电压条件下GIS局部放电检测对比研究[J]. 中国电力, 2014, 47(3): 125-129.

MA Hong-ming, ZHOU Nian-rong, XIAO Dan, TAN Xiang-yu, LI Jing-rui. Study on Partial Discharge Detection in GIS under AC Voltage and DC Voltage[J]. Electric Power, 2014, 47(3): 125-129.

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https://www.electricpower.com.cn/CN/Y2014/V47/I3/125

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