1,10kV, S9 ,3 phase oil immersion power transformer 2,high efficiency,low loss 3,Low losses and ... /T 7595-1987 JB/T 3837-1998technical data:1) Rated Power: 30~2500kVA2)Rated HV: 6KV,6.3KV, 10KV, 10.5KV ... others in according to client needs;10)Cooling type: oil nature, oil cooling 10kV, S9 ,3 phase oil immersion ...