Rectification Modification of OLTC tap position increasing to plus minus 10percent instead of plus5percent minus15percent high voltage winding coils ratio reconditioning of 220 6.9KV 25 31.5 MVA power transformer 1and 2 at Kondapaka 220 6.9KV substation including dismantling loading rectification at workshop transportation unloading erection testing and commissioning of 220 6.9KV 25 31.5 MVA power transformer at Kondapaka 220 6.9KV substation under Electrical subdivision OandM Div No XXI Control Room