Thanks David ...yes i can understand the difference ...what about the good prcatice?..I am working in Middle east ...following IEC standards(50Hz power supply for this project....for this size oil temperature, winding temperature and Buchholtz relay protection not required?...
As per load requirement transfomer has been sized as 1600KVA, 33KV primary and 440Volts seconadry,Dyn11,50Hz. ONAN(oil cooled).Primary tap off from the overhead wooden pole distribution line with load break switch(hand operated) and HRC fuses(25KA rated). My question is this transformer doen't...