电缆GIS终端局放缺陷检测和定位分析

Detection and Location Analysis of Partial Discharge Defects in Cable GIS Terminal

基于高频、特高频、超声波局放检测技术,阐述一种电缆气体绝缘开关设备GIS终端局放信号定相、定位和定性的分析方法,基于一起典型的电缆GIS终端局放缺陷案例,探讨和比较高频局放检测结果和特高频局放检测信号的大小,相位信息实现电缆GIS终端局放缺陷定相、定位和定性的详细步骤。

Based on high frequency, ultra-high frequency and ultrasonic partial discharge detection technology, this paper expounds an analysis method for phasing, positioning and qualitative analysis of partial discharge signal at GIS terminal of cable gas insulated switchgear. Based on a typical case of partial discharge defect at GIS terminal of cable, this paper discusses and compares the results of high frequency partial discharge detection and the size of ultra-high frequency partial discharge detection signal, Phase information is the detailed steps to realize the phasing, positioning and characterization of partial discharge defects in cable GIS terminal.