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Relationship between UHF PD Detection and Apparent Charge Quantity of Metal Protrusion in Air

机译:UHF PD检测与空气中金属突起的视在电荷量之间的关系

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摘要

On the basis of the experiment model of metal protrusion, the relationship between UHF measurement and pulse current method was investigated by theory and experiment results. The results indicate that the optimal regression curve is energy of UHF signal relative to square of apparent discbarge quantity. The variation of voltage has no impact on the regression curve. However, while the distance between protrusion and plate is changed, the slope of regression curve changes according to it and the same energy is corresponding to bigger discharge quantity.%Bazując na eksperymentalnym modelu rozrzutu metalu w powietrzu badano zależność pomiaru UHV i metodą prądu pulsującego. Stwierdzono, że energia sygnału UHV zależy w kwadracie od natężenia wyładowania. Wprawdzie energia wyładowania nie zależy od zmian napięcia ale wraz ze zmianą odległości między elektrodami wyładowania zmienia się kształt krzywej regresji w zależności od napięcia.
机译:在金属凸出物实验模型的基础上,通过理论和实验结果研究了UHF测量与脉冲电流法之间的关系。结果表明,最佳回归曲线是UHF信号的能量相对于视在扰动量的平方。电压的变化对回归曲线没有影响。但是,当改变凸起与板之间的距离时,回归曲线的斜率会随之变化,并且相同的能量对应于更大的放电量。%基于空气中金属散射的实验模型,研究了特高压测量与脉动电流法之间的关系。发现UHV信号能量与放电强度成平方关系。尽管放电能量不取决于电压变化,但是随着放电电极之间的距离变化,回归曲线的形状根据电压而变化。

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  • 来源
    《Przeglad Elektrotechniczny》 |2012年第4a期|p.266-270|共5页
  • 作者单位

    State Key Laboratory of Transmission & Distribution Equipments and Power System Safety and New Technology, Chongqing University, Shapingba District, Chongqing 400030, China;

    State Key Laboratory of Transmission & Distribution Equipments and Power System Safety and New Technology, Chongqing University, Shapingba District, Chongqing 400030, China;

    State Key Laboratory of Transmission & Distribution Equipments and Power System Safety and New Technology, Chongqing University, Shapingba District, Chongqing 400030, China;

    State Key Laboratory of Transmission & Distribution Equipments and Power System Safety and New Technology, Chongqing University, Shapingba District, Chongqing 400030, China;

    State Key Laboratory of Transmission & Distribution Equipments and Power System Safety and New Technology, Chongqing University, Shapingba District, Chongqing 400030, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    ultra high frequency; partial discharge; discharge quantity;

    机译:超高频局部放电;放电量;

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