电测与仪表Issue(11)：73-78,6.
基于TEV与超声波的开关柜局部放电检测及定位研究
Research on Partial Discharge Detection and Location of Switchgear Based on TEV and Ultrasonic Wave Methods
律方成 1李海德 1王子建 1程益峰2
作者信息
- 1. 华北电力大学河北省输变电设备安全防御重点实验室，河北保定071003
- 2. 北开电气集团，浙江嘉善314100
- 折叠
摘要
Abstract
The safe and reliable operation of high voltage (HV) switchgear directly influences the reliability of the whole substation’s power supply, so the partial discharge detection of HV switchgear is particularly important. This paper mainly analyzes the principle of transient earth voltage (TEV) and ultrasonic wave methods of partial discharge detection of HV switchgear, and the advantages and disadvantages of these two methods. Four typical models of partial discharge, namely needle plate discharge, internal discharge, suspended discharge and surface discharge, are designed; and an experimental platform of partial discharge detection based on the combination of TEV and ultrasonic wave is designed. Through simulation experiments, the combination of TEV and ultrasonic wave methods is used to locate the orientation of the partial discharge source. This method is verified to be more accurate and practical for partial discharge detection.关键词
高压开关柜/局部放电/TEV/超声波/定位Key words
high voltage switchgear/partial discharge/TEV/ultrasonic wave/location分类
信息技术与安全科学引用本文复制引用
律方成,李海德,王子建,程益峰..基于TEV与超声波的开关柜局部放电检测及定位研究[J].电测与仪表,2013,(11):73-78,6.
