Transformers Magazine, Vol. 11 No. 1, 2024.
Original scientific paper
Volt-time curves of oil-filled power transformer insulation - Survey of 100 years of research – Part I
Vitaly Gurin
Abstract
One hundred years of data are considered for the electrical strength of power transformer insulation and its dependence on time. Where possible, scatter values of breakdown voltage and partial discharge inception voltage have been extracted from the reference list in order to optimize insulation design and possibly enable future statistical coordination of internal insulation of transformers. This article is intended for young transformer engineers and university faculty teaching undergraduate and postgraduate courses.
Keywords
breakdown voltage; core-type transformer; internal insulation; shell-type transformer; transformer oil; volt-time curve
Hrčak ID:
313171
URI
Publication date:
8.1.2024.
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