Original scientific paper

The statistical scatter of breakdown voltages of transformer oil - Part III

Vitaly Gurin
Marius Grisaru

Abstract

The third part of the article about coefficients of variation (CV%) of breakdown voltage (BDV) of transformer oil discusses area effect and volume effect. Apparently, BDV decreases linearly with area on a logarithmic scale, but this does not apply to CV%. There is currently little data to make any quantitative recommendations. With an increase in the stressed oil volume by orders of magnitude, CV% decreases several times, but this estimate requires verification.

Keywords

area effect; breakdown voltage; coefficients of variation; electric strength; transformer oil; stressed oil volume

Hrčak ID:

330330

URI

https://hrcak.srce.hr/330330

Publication date:

7.4.2025.

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