What is the typical oil capacity of a 1000 kVA transformer?

Oil capacity for a 1000 kVA unit varies widely by voltage class, cooling design, radiator size, and manufacturer. A compact distribution style 1 MVA transformer can have several hundred liters, while a higher voltage or heavier duty design may exceed a thousand liters. There is no single universal value that can be calculated from kVA alone. The correct capacity is taken from the nameplate, manufacturer drawings, or utility asset database, because tank geometry and cooling requirements drive oil volume and expansion space.