Power Transformer S9-M-30~2500/10 1.CCC,CE, ... Top10 in China 10kV Three Phase Oil Immersed Power Transformer S9-M-30~2500/10 Primary voltage: 6, 6.3, 10, 10.5, ... 11kVTapping range: ±5%Secondary voltage: 3, 3.15, ... for more than 30 years. With stength of power transformer, substation, switchgears, circuit breaker, wtih super quality and ...