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COMPARISON OF CHARGE ESTIMATION METHODS IN PARTIAL DISCHARGE
CABLE MEASUREMENTS
ABSTRACT
The aim of this paper is to compare different partial discharge (PD) charge estimation
methods for PD cable measurements. The paper covers the mathematical foundation behind the
different presented methods, and explores the limits of each method regarding the associated
maximum charge estimation errors in PD cable measurements. The results are focused on long
cables where large PD pulse distortions are present and therefore, the measured pulses differ
significantly from the calibrator ones. Each proposed method is analyzed, and finally, limitations
of each method are discussed.

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Comparison of charge estimation methods in partial discharge cable measurements

  • 1. COMPARISON OF CHARGE ESTIMATION METHODS IN PARTIAL DISCHARGE CABLE MEASUREMENTS ABSTRACT The aim of this paper is to compare different partial discharge (PD) charge estimation methods for PD cable measurements. The paper covers the mathematical foundation behind the different presented methods, and explores the limits of each method regarding the associated maximum charge estimation errors in PD cable measurements. The results are focused on long cables where large PD pulse distortions are present and therefore, the measured pulses differ significantly from the calibrator ones. Each proposed method is analyzed, and finally, limitations of each method are discussed.