摘要
介绍了特高频法检测 GIS内局部放电的模拟试验方法。试验表明特高频法可有效地消除电晕干扰 ,检测的放电信号随 GIS内放电间隙的增大而减小 ,随传感器与放电间隙距离增大而减小。特高频电磁波信号传播时间差可对 GIS内局部放电进行初步定位。
This paper presents a simulating experiment method and the experimental results about the ultra high frequency (UHF) method for detection of partial discharge in gas insulated substation (GIS) .The experimental results show that UHF method can eliminate the corona interference effectively, and the discharge signal is decreased with the increase of the discharge gap distance in GIS. Furthermore, the relation of the signal intensity decreased with the increasing distance between the sensor and test set up can be used to location. The propagation time difference of the UHF electromagnetic wave can be used to locate the general position of a partial discharge.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2001年第3期15-16,30,共3页
High Voltage Engineering
