S11 series oil-immersed transformers Rated Power: 30~31500kVA Rated HV: 6,6.3,10,11,15,20,35kV Rated LV: 220,380, ... for the core mould design, thus to greatly reduce noise level. Simulated lightning impulse wave process was carried out for ... s anti-lightning impulse capability.Oil mmersed Transformer Other Advantages: The S(B) series Oil-immersed type transformer features low noise, low loss, rational ...