Define losses of transformer The efficiency of 400KVA singe phase transformer is 98 77 when delivering full load at 0 8 pf

Question

Define losses of transformer The efficiency of 400KVA singe phase transformer is 98 77 when delivering full load at 0 8 pf lagging and 99 13 at half full load at unity pf calculate 1 Iron loss 2 Copper loss

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