Tender For Overhauling Of 220 / 132 Kv , 150 Mva Power Transformer No. 02 Si No. 140036 And 220 / 132 Kv , 150 Mva Power Transformer , Replacement , Filtration And Dehydration Of Transformer Oil And Replacement Of All Gaskets, Painting And All Associated Works Of 132 / 33 Kv 20 Mva , Ngef Make Power Transformers