Estimating the location of partial discharges in cables

There are several techniques that can be used to estimate the location of partial discharges in cables, however, certain technical obstacles need to be overcome before acceptance of this type of testing becomes widespread. A review of the theory of signal propagation in power cables is presented alo...

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Bibliographic Details
Published inIEEE transactions on electrical insulation Vol. 27; no. 1; pp. 44 - 59
Main Authors Steiner, J.P., Reynolds, P.H., Weeks, W.L.
Format Journal Article
LanguageEnglish
Published New York, NY IEEE 01.02.1992
Institute of Electrical and Electronics Engineers
Subjects
Aging
Applied sciences
Cable insulation
Circuit noise
Coaxial cables
Electrical engineering. Electrical power engineering
Electrical power engineering
Exact sciences and technology
Partial discharges
Polyethylene
Power cables
Power measurement
Power networks and lines
Testing
Trees - insulation
Underground and submarine networks
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Summary:There are several techniques that can be used to estimate the location of partial discharges in cables, however, certain technical obstacles need to be overcome before acceptance of this type of testing becomes widespread. A review of the theory of signal propagation in power cables is presented along with its relation to partial discharge site location. Fundamental limitations affect the detectability and location accuracy of partial discharges in power cables. The sources of these errors are discussed along with methods that minimize their effects. The advantages and disadvantages of alternative methods for locating partial discharge sites are presented along with a calibration method that improves the accuracy of these methods.< >
ISSN:0018-9367
1557-962X
DOI:10.1109/14.123440