... 4)lowest loss,small size 10-20KV S13-M.RL 80~2500KVA 3 phase new energy-saving three imensional triangular wound ... -phase equivalent magnetic circuit, shortening the iron yoke, the core columns fill factor high, its structure is recognized as the ideal ... , 000 yuan / T. G3-630KVA 10-20KV S13-M.RL 80~2500KVA 3 phase new energy-saving three imensional triangular wound ...