CAJ | 학술논문

GIS在制造和装配过程中难免会留下一些潜伏缺陷，导致在运行中引起GIS内部局部放电。研制了一种超高频宽带振子天线--套筒天线传感器，并对其性能进行了仿真计算，结果表明可以用作局部放电检测的超高频传感器。为研究三相共箱式GIS中存在缺陷引起的局部放电超高频信号的特征，建立了6种典型缺陷模型来模拟局部放电故障，采用自建的局放检测系统测量得到了各种缺陷下GIS局部放电的宽频带特征，为三相共箱式GIS局部放电缺陷的监测和诊断奠定了良好的基础。
GIS재제조화장배과정중난면회류하일사잠복결함，도치재운행중인기GIS내부국부방전。연제료일충초고빈관대진자천선--투통천선전감기，병대기성능진행료방진계산，결과표명가이용작국부방전검측적초고빈전감기。위연구삼상공상식GIS중존재결함인기적국부방전초고빈신호적특정，건립료6충전형결함모형래모의국부방전고장，채용자건적국방검측계통측량득도료각충결함하GIS국부방전적관빈대특정，위삼상공상식GIS국부방전결함적감측화진단전정료량호적기출。
Some latent defects may be left during the manufacture and assemble process of GIS, which would lead to partial discharge in GIS at operation. A sleeve antenna sensor with ultra broad frequency band was prepared, and its characteristics were simulated and calculated, and the results show that it can be used as UHF sensor to monitor the partial discharge of GIS. In order to study the UHF signal charac-teristics of partial discharge caused by the defects in three-phase-in-one-tank type GIS, six typical defect models were built to simulate the partial discharge fault. The high band frequency characteristics of par-tial discharge under different GIS defects was measured by self-made partial discharge detecting system, which lay a good foundation to monitor and diagnose the partial discharge defects of three-phase-in-one-tank type GIS.