Transformers Magazine, Vol. 12 No. 1, 2025.
Izvorni znanstveni članak
The statistical scatter of breakdown voltages of transformer oil - Part II
Vitaly Gurin
Marius Grisaru
Sažetak
The second part of the article is about coefficients of variation (CV%) of breakdown voltage (BDV) of transformer oil and discusses the voltage rise effect and the gap spacing effect. CV% decreases as the rate of voltage rises, but there is insufficient data to quantify this phenomenon. CV% decreases linearly with the logarithm of gap spacing (approximately 3 times per order of magnitude increase in gap).
Ključne riječi
breakdown voltage; coefficients of variation; gap spacing; IEC; power transformer; size effect; transformer oil; voltage rise effect
Hrčak ID:
327381
URI
Datum izdavanja:
9.1.2025.
Posjeta: 18 *