NDLI: Study on the characteristics of partial discharges in voids under square voltage by detecting light emission intensity

Content Provider	IEEE Xplore Digital Library
Author	Kai Wu Cheng Pan Yongpeng Meng Changhao Sun Minggang Gao Kai Qin Hongyu Long
Copyright Year	1994
Abstract	In order to quantitatively study partial discharge (PD) behavior in voids under square voltage, the feasibility of PD measurement by detection of light emission intensity was investigated at first. Experiments were carried out to study the influences of void size on the correlation between light emission intensity and PD magnitude and its transition with PD degradation. It is confirmed that a good correlation existed between light emission intensity and PD magnitude in a void with diameter larger than 3mm and the correlation did not change in the PD degradation process. Then, the effect of square voltage rise rate on PD characteristics under square voltage was investigated by detecting light emission intensity. In the PD degradation process, an abnormal phenomenon that the maximum PD magnitude decreased with the increase of voltage rise rate was observed. This was interpreted in terms of the change of surface condition due to PD degradation.
Sponsorship	National Natural Science Foundation of China (NSFC) Region Centre Ville de Tours Conseil General D'Indre et Loire ABB IEEE Sandia National Laboratories TOSHIBA
File Size	1183454
File Format	PDF
ISSN	10709878
Volume Number	18
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Partial discharges Voltage measurement Aging Discharges Correlation Degradation Partial discharge measurement degradation PD light intensity square voltage voltage rise rate
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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