使用超高频传感器监测电力变压器:现场试验

Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316) Pub Date : 2002-04-07 DOI:10.1109/ELINSL.2002.995899

M. Judd, G. P. Cleary, C. J. Bennoch, J. Pearson, T. Breckenridge

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引用次数: 25

摘要

在1000mva充油变压器的现场测试中，超高频(UHF)频段传感器被用于检测内部放电。变压器在电压超过正常水平15%的情况下运行。使用超高频测试设备在两个传感器上检测到两个放电源。放电信号以相位分解形式进行分析，并使用飞行时间测量来提供有关其来源的进一步信息。结果表明，超高频方法在变压器测试和局部放电在线监测中是非常有效的。

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Power transformer monitoring using UHF sensors: site trials

Sensors operating in the ultra-high frequency (UHF) band have been used to detect internal discharges during site testing of a 1000 MVA oil-filled transformer. The transformer was operated at voltages exceeding normal levels by up to 15%. Two discharge sources were detected at both sensors using UHF test equipment. Discharge signals are analyzed in phase-resolved form and time-of-flight measurements are used to provide further information regarding their origin. The results indicate that the UHF method could prove very effective for transformer testing and online PD monitoring.

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Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316)

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