高压电器2018，Vol.54Issue(1)：97-103,109,8.DOI:10.13296/j.1001-1609.hva.2018.01.014
高压开关柜内部电气设备局部放电特性的检测与分析
Detection and Analysis of Partial Discharge Characteristics for High Voltage Switchgear Internal Electrical Device
李永祥 1亢银柱 1王天正 1杨罡 1郭力强 1高佳琦2
作者信息
- 1. 国网山西省电力公司电力科学研究院,太原030001
- 2. 国网山西省电力公司晋城供电公司,山西晋城048000
- 折叠
摘要
Abstract
There exist many reasons for the partial discharge in switchgear such as the insulation defect,insulation aging,and the lack of insulation gap and so on,so the judgment of partial discharge type is inaportant for the evaluation of switchgear operation status.The internal structure of switchgear is analyzed,the features of different detection method are discussed and the decision and location method of partial discharge are given.Base on the 3 cases partial discharge,as for the employed detection method,the amplitude,characteristics,location,types and reason of partial discharge are researched,meanwhile,the sensitivity of the detection method under different cases is also given.The testing data show that:TEV is more sensitive than AE as for the internal PD of arrester,UHF is more sensitive than TEV and AE as for the internal insulation PD of PT,AE and UHF is more sensitive than TEV as for the surface PD of wall bushing.The research on the partial discharge characteristics of different electrical equipment in the switchgear provides important parameters and basis for the condition maintenance of the high voltage switchgear,and provides powerful technical support for the on-site test personnel.关键词
高压开关柜/电气设备/局部放电/定位方法/案例分析Key words
high voltage switchgear/electrical Device/partial discharge/location method/case analysis引用本文复制引用
李永祥,亢银柱,王天正,杨罡,郭力强,高佳琦..高压开关柜内部电气设备局部放电特性的检测与分析[J].高压电器,2018,54(1):97-103,109,8.
