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首页> 外文期刊>Journal International Association on Electricity Generation, Transmission and Distribution >A TEST METHODOLOGY FOR PD DETECTION AND LOCALIZATION IN GAS INSULATED BUS DUCT USING UHF METHOD
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A TEST METHODOLOGY FOR PD DETECTION AND LOCALIZATION IN GAS INSULATED BUS DUCT USING UHF METHOD

机译：超高频法在气体绝缘公交管道中局部放电检测与定位的测试方法

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摘要

Gas Insulated Substations (GIS) offer significant advantages over conventional Air Insulated Substations (AIS) on account of reduced space and operational efficiency. Partial discharge (PD) measurement is one of the important test in GIS to ensure its reliability during service and also to reveal defects at incipient levels. One of the methods employed for partial discharge (PD) measurement is by capturing the Ultra high frequency (UHF) signals that emanate from the partial discharge sites. The present paper discusses the measurement of partial discharges and also localization of PD source in a gas insulated bus duct assembly of EHV (Extra high voltage) class, using UHF PD detector. The corresponding PD magnitude obtained through conventional electrical method has also been reported. The study has been aimed to monitor PD during service (on-line) using the UHF method so that defects can be detected at premature levels. Necessary set-up for measurement is also discussed in the paper. This process of evaluation helps utility to make appropriate plans for maintenance schedules and ensure reliable operation of GIS.
机译：气体绝缘变电站（GIS）与传统的空气绝缘变电站（AIS）相比，由于减小了空间并降低了运行效率，因此具有明显的优势。局部放电（PD）测量是GIS中的一项重要测试，以确保其在使用过程中的可靠性并在初期就发现缺陷。用于局部放电（PD）测量的方法之一是捕获从局部放电部位发出的超高频（UHF）信号。本文讨论了使用UHF PD检测器测量EHV（超高压）类气体绝缘母线管组件中局部放电的测量以及PD源的定位。还已经报道了通过常规电学方法获得的相应的PD值。这项研究旨在使用UHF方法在服务期间（在线）监视PD，以便可以在过早的水平上检测到缺陷。本文还讨论了必要的测量设置。评估过程可帮助公用事业制定适当的维护计划计划，并确保GIS的可靠运行。

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