摘要
介绍了高压开关柜局部放电特高频法测试的原理及特点,列举了电晕放电、悬浮放电、绝缘沿面放电共3种缺陷放电类型的特高频法的局部放电的幅值-相位图及幅值-放电次数统计图,并分析了上述3种放电类型的图谱特征。通过一起特高频法检测高压开关柜局部放电的案例,验证特高频法检测高压开关柜局部放电的实用性。
The principle and characteristics of UHF partial discharge measurement for high voltage switchgear are introduced. The amplitude - phase diagram and amplitude - discharge number statistics of UHF partial discharge with three types of defect discharge,namely corona discharge,suspension discharge and insulating surface discharge are enumerated. and the characteristics of the above three types of discharge patterns are analyzed. A case of detecting partial discharge in high voltage switchgear by UHF method is introduced. The practicability of detecting partial discharge in high voltage switchgear by UHF method is verified.
作者
赖艳珊
陈贤熙
LAI Yanshan;CHEN Xianxi(Foshan Power Supply Bureau of Guangdong Power Grid Co. ,Ltd. ,Foshan Guangdong 528000,China)
出处
《宁夏电力》
2019年第2期27-32,共6页
Ningxia Electric Power
关键词
高压开关柜
局部放电
特高频
图谱
定位
high voltage switchgear
partial discharge
UHF
atlas
location
