Supply, Installation And Commissioning Of Restricted Neutral System Along With Fail Safe Arrangement (B) 02 Nos. Transformer (2Mva, 1No. 315Mva 01 No. At Shyamsundarpur Sub-Station, (C) 550Volt 750Ma Restricted Grounding System With Fail Safe Arrangement Of 02 Nos. Tsu Of Shyamsundarpur Colliery.