NDLI: Partial discharges in SF<sub>6</sub> gas filled void under standard oscillating lightning and switching impulses in uniform and non-uniform background fields

Content Provider	IEEE Xplore Digital Library
Author	Ming Ren Ming Dong Yuan Liu Jin Miao Aici Qiu
Copyright Year	1994
Abstract	Behaviors and characteristics of partial discharges in SF6 gas filled void are investigated under oscillating lightning impulse voltage (OLI) and switching impulse voltage (OSI). The negative and positive PD sequences under impulses are described and analyzed under the applications of uniform and non-uniform background fields. Four types of discharge pulses in sequences are distinguished by their magnitudes, waveforms and time interval and well interpreted by a charge memory physic model. The distribution of PD points under OLI and OSI in normalized phase range (φN, Im) are proposed to describe the occurrence of PD under periodic oscillation impulses statistically. It is indicated that the discharges with low magnitudes are distributed in the relative large ranges of phase and the discharges with high magnitudes are mainly distributed in the relative narrow ranges of phase. By experimental results, the influences of the gas pressure and the void dimension ratio are studied and it is concluded that both the increases of these two factors could bring the obvious restrictions on PD activity under oscillating impulses.
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
Starting Page	138
Ending Page	148
Page Count	11
File Size	4357510
File Format	PDF
ISSN	10709878
Volume Number	21
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
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 Discharges (electric) Open systems Electric fields Sulfur hexafluoride Lightning Standards PD diagnosis Void defect SF ₆ partial discharges oscillating lightning impulse oscillating switching impulse
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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