CAJ | 학술논문

介绍了对开关柜局部放电暂态对地电压法和超高频法检测定位技术，对超高频电磁波在开关柜中的传播特性进行了理论分析。在实际运行10 kV开关柜中研究了暂态对地电压法和超高频法局部放电定位技术的有效性和可行性。结果表明：采用暂态对地电压法，超高频检测幅值比较和时间差法的局部放电定位技术对开关柜局部放电缺陷的检测和定位是有效可行的。高压开关柜局部放电暂态对地电压法和超高频法检测定位技术可为现场应用提供实验基础。
개소료대개관거국부방전잠태대지전압법화초고빈법검측정위기술，대초고빈전자파재개관거중적전파특성진행료이론분석。재실제운행10 kV개관거중연구료잠태대지전압법화초고빈법국부방전정위기술적유효성화가행성。결과표명：채용잠태대지전압법，초고빈검측폭치비교화시간차법적국부방전정위기술대개관거국부방전결함적검측화정위시유효가행적。고압개관거국부방전잠태대지전압법화초고빈법검측정위기술가위현장응용제공실험기출。
This paper introduces transient voltage to ground method and ultrahigh frequency detecting and positioning tech-nology for partial discharge of switch cabinet and carries out theoretical analysis on spread characteristics of ultrahigh fre-quency electromagnetic wave in switch cabinet.In practical operation of 1 0 kV switch cabinet,it studies effectiveness and feasibility of transient voltage to ground method and ultrahigh frequency PD positioning technology.The result indicates that it is effective and feasible to use transient voltage to ground method and ultrahigh frequency to detect amplitude comparison and PD positioning technology based on time difference method to realize detection and positioning for PD defects of the switch cabinet.Transient voltage to ground method and ultrahigh frequency detecting and positioning technology for PD in high voltage switch cabinet is useful to provide experimental basis for the scene.