Tender For supply of 220kv sf6 current transformer with clamp (ct ratio-800/1- 1-1-1-1a & 1600/1a) , 220kv sf6 current transformer with clamp (ct ratio-1600/1-1-1-1-1a) , 220kv sf6 current transformer with clamp (ct ratio-100-200/1-1-1-1-1a & 1600/1a)