NDLI: Partial discharge location as a diagnostic tool for power cables

Content Provider	IEEE Xplore Digital Library
Author	Mashikian, M.S.
Copyright Year	2000
Description	Author affiliation: IMCORP, Storrs, CT, USA (Mashikian, M.S.)
Abstract	The competitive environment created by free market electricity supply requires that electric utilities reduce capital and operating expenses and, at the same time, increase the overall quality of electricity. Underground distribution cable systems are particularly sensitive to this need, which can be effectively addressed by in-situ diagnostic tests. This paper discusses one such diagnostic method based on the location of discrete partial discharge sites. The paper briefly reviews the conditions under which a cable service would produce partial discharges. It illustrates the fact that, although cable systems undergo some overall deterioration, service failures occur at the sites of discrete defects, which in most instances can be identified by a partial discharge test. The principles of the test are reviewed and statistical data with significant case studies are presented. The effects of maximum test voltage and instrument sensitivity are discussed in the light of statistical field test data.
Starting Page	1604
Ending Page	1608
File Size	544755
Page Count	5
File Format	PDF
ISBN	0780359356
DOI	10.1109/PESW.2000.847582
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-01-23
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Partial discharges Power cables Insulation testing Nondestructive testing Voltage Electrodes Trees - insulation Power industry Power system reliability Charge transfer
Content Type	Text
Resource Type	Article

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