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Author Zhou, J.Y. ♦ Boggs, S.A.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2006
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Transfer functions ♦ Power cables ♦ Dielectric losses ♦ Lightning ♦ Surges ♦ Resonance ♦ Power transformer insulation ♦ Power cable insulation ♦ Communication cables ♦ Stress
Abstract Lightning and switching surges are the most common causes of electrical failures in distribution transformers. Fast rising transients that reach the transformer can cause large turn-to-turn voltages at the line end of the windings and resonances, which result in large voltages to ground elsewhere in the windings, many of which may exceed the winding insulation strength. In a previous paper, empirical data were presented which indicate that the type of cable employed between the source of the transient and the transformer has an impact on the electrical stress imposed on the transformer. The present contribution takes a more analytical approach to this work, and establishes the factors which play a role in this difference, the most important of which appears to be the loss of the cable dielectric
Description Author affiliation: General Electr. Co., Niskayuna, NY (Zhou, J.Y.)
ISBN 0780391942
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2006-05-21
Publisher Place USA
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 396.16 kB
Page Count 5
Starting Page 52
Ending Page 56

Source: IEEE Xplore Digital Library