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2012•Journal of Hebei University of TechnologyRequires access

The experimental study of 110 kV GIS partial discharge

Shuguang Sun

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Abstract

In order to study the characteristics of partial discharge signals of typical GIS faults as well as the estimation of partial discharge quantity by using UHF method,a 110kV GIS model is set up as experimental equipment and several typical faults are placed in which.After a large number of tests,it is shown that there are significant differences among the waveform,spectrum,amplitude,and phase distribution of UHF signal for different type of discharge fault,and the discharge characteristics are affected by the change of pressure and voltage,it is also shown that the linear relationship between the amplitude and the quantity of corona discharge is the most obvious.All of these lay a foundation for the indepth study of recognition and evaluation of GIS partial discharge based on UHF method.

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What this paper is about

In order to study the characteristics of partial discharge signals of typical GIS faults as well as the estimation of partial discharge quantity by using UHF method,a 110kV GIS model is set up as experimental equipment and several typical faults are placed in which.After a large number of tests,it is shown that there are significant differences among the waveform,spectrum,amplitude,and phase distribution of UHF signal for different type of discharge fault,and the discharge characteristics are affected by the change of pressure and voltage,it is also shown that the linear relationship between the amplitude and the quantity of corona discharge is the most obvious.All of these lay a foundation for the indepth study of recognition and evaluation of GIS partial discharge based on UHF method.

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Available abstract

In order to study the characteristics of partial discharge signals of typical GIS faults as well as the estimation of partial discharge quantity by using UHF method,a 110kV GIS model is set up as experimental equipment and several typical faults are placed in which.After a large number of tests,it is shown that there are significant differences among the waveform,spectrum,amplitude,and phase distribution of UHF signal for different type of discharge fault,and the discharge characteristics are affected by the change of pressure and voltage,it is also shown that the linear relationship between the amplitude and the quantity of corona discharge is the most obvious.All of these lay a foundation for the indepth study of recognition and evaluation of GIS partial discharge based on UHF method.

Key concepts: Partial discharge, Ultra high frequency, Waveform, Amplitude, Fault (geology), SIGNAL (programming language), Acoustics, Voltage

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