A composite system for simultaneous detection of electrical charge and acoustic emission pulse of partial discharge

Author

Kim, Sung-Hong ; Choi, Jae-Kwan ; Yoon, Hun-Ju ; Park, Jae-Jun ; Kim, Jae-Hwan

Author_Institution

Kwangwoon Univ., Seoul, South Korea

Volume

2

fYear

1997

fDate

25 -30 May 1997

Firstpage

817

Abstract

The authors develop a composite system involving the simultaneous measurement of electrical charge amplitude and acoustic emission (AE) pulse amplitude of partial discharges (PD) and their correlation to fractal dimension, and to use the system to investigate the treeing phenomena in polymeric insulation with an artificial needle-shaped void. We analyzed the phase angle-electrical charge amplitude-deterioration time (Φ-QA-t) pattern and phase angle-acoustic emission amplitude-deterioration time (Φ-AEA-t) pattern using statistical operators such as skewness and kurtosis. Our studies show that the correlation of electrical charge amplitude, AE pulse amplitude and fractal dimension can be used to predict breakdown just before it occurs

Keywords

acoustic emission testing; charge measurement; electric breakdown; fractals; insulation testing; partial discharges; polyethylene insulation; trees (electrical); voids (solid); AE pulse amplitude; LDPE insulation; acoustic emission pulse detection; artificial needle-shaped void; breakdown prediction; electrical charge amplitude; electrical charge detection; fractal dimension; kurtosis; partial discharge; phase angle-acoustic emission amplitude-deterioration time pattern; phase angle-electrical charge amplitude-deterioration time pattern; polymeric insulation; skewness; statistical operators; treeing phenomena; Acoustic emission; Acoustic measurements; Acoustic signal detection; Charge measurement; Current measurement; Electric variables measurement; Fractals; Interconnected systems; Partial discharges; Pulse measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 1997., Proceedings of the 5th International Conference on

Conference_Location

Seoul

Print_ISBN

0-7803-2651-2

Type

conf

DOI

10.1109/ICPADM.1997.616562

Filename

616562