... Requirements for Three-phases Oil-immersed Power Transformers". The load voltage regulation range covers 35±2*2.5%kV,35±3 ... *2.5%kv,38.5±3*2.5%kV. The voltage can be regulated manually,electrically or automatically in the specified ... the primary side,so as to guarantee the stability of output voltage.Table-flap type tank is adopted in 35KV transformer of ...