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Behavior of transformer insulation under short-time overvoltage

1977; Institute of Electrical and Electronics Engineers; Volume: 96; Issue: 2 Linguagem: Inglês

10.1109/t-pas.1977.32372

0018-9510

R.J. Musil, E. Schopper, H. Foschum,

Lightning and Electromagnetic Phenomena

This paper reports on a series of tests made on transformer insulation samples with automatically applied short-time a.c. overvoltages above the corona inception level to determine the conditions under which damaging corona occurs. Modified dielectric tests for power transformers are discussed.