Panov obtained dependences of the breakdown voltages of transformer oil on the distance between the electrodes (up to a maximum distance of 50 cm) Volt-time curves of oil-filled power transformer insulation Survey of 100 years of research – Part II

Abstract

The second part of the article examines the data of Soviet scientists on the dependence of the electrical strength of insulation of power transformers on time in historical development. Where possible, the scatter values of break-down voltage and/or partial discharge initiation voltage have been extracted from the publications under consideration for data collection to optimize insulation design and possible future statistical coordination of the internal insulation of transformers. The article is intended for young transformer engineers and for teaching transformers to undergraduate and postgraduate students in universities.