摘要
超声波局部放电检测法被广泛应用于现场GIS带电检测工作中,但该方法在现场实测时,受多种因素影响产生的干扰信号严重影响了缺陷诊断的准确性。通过对现场检测的超声波异常信号开展分析,综合屏蔽法、相位法、时差定位法等手段对现场测试数据进行诊断。该方法可用于指导现场超声波检测时干扰信号的分析与排除。
Ultrasonic-based partial discharge detection method is widely used in live detection of field GIS.But in actual field detection, the accuracy of defect diagnosis of this method is seriously affected by the interference signal due to various factors. In this paper, the abnormal ultrasonic signal in field detection is analyzed, and through the shielding method, phase method, time difference location method the field test data are diagnosed. The method can be used to direct the analysis and elimination of interference signal in field ultrasonic detection.
出处
《浙江电力》
2016年第10期1-6,共6页
Zhejiang Electric Power
关键词
GIS
超声波
带电检测
局部放电
干扰信号
GIS
ultrasonic
live detection
partial discharge
interference signal
