... loss decreased 33%, no-load current by 85%, and the noise down 8dB (A) ~ 13dB (A)> Compared with ... loss decreased 80%, no-load current drops more than 80%, noise down 8dB (A) ~ 11dB (A)> Compared to ... transformer, no-load current is decreased by 70%, and the noise down 5dB (A) ~ 8dB (A)TwoThree balance> ... 200KVA 20/0.433KV S13-M.RL 3 phase new energy-saving low loss triangular wound core oil type power ...