This is a 1250 KVA hermetic step down Oil Immersed Transformer manufactured by our factory.

The primary voltage 11 KV, second voltage 0.4 KV.

Aluminum winding, copper to be selected.

Then, what are the advantages of hermetic oil immersed transformers?

It is whole sealing, compared with ordinary oil-immersed transformer, the oil storage tank is canceled. The oil volume change is adjusted automatically by the elasticity of the fuel tank corrugated sheet. Transformer oil is isolated from the rest of the air, to slow the deterioration of oil and insulation aging, to enhance the operation reliability, realizing normal operation maintenance-free.