Onsite installation of Numerical Feeder Protection relay including supply of numerical based feeder protection relay for protection of different incoming feeders and control of three Power Transformers under Bokaro Colliery, Bnk Area

Amount

Supply and Providing of Numerical based Feeder Protection relay Auxiliary supply 80V - 265V AC/DC Features include :- Different IDMT Curve characteristics, Overcurrent protection Under current Protection Non directional overcurrent low set Non directional overcurrent high set Earth fault protection low set Broken conductor protection, Auto reclosure facility

Supply of auxiliary contactor/ add on block of suitable number of NO/NC for fan connection

Installation of feeder protection relay at a suitable location of the OCB including supply of base channel and other accessories

Fabrication of space including cutting, welding on the existing panel/ door of the switchgear including supply and installtion of core

Connection of the feeder protection relay with the existing control circuit in the switchgear (including feruls, lugs etc))

Supplying and drawing following sizes of FR PVC insulated copper conductor, single core cable in the existing surface/ recessed steel/ PVC conduit as required. 2 x 2.5 sq. mm

Supply and fitting of electonic alarm hooter of range about 300 metres on the panel

Supply and fitting of power pack unit 110V AC/110DC- 40V

Contractor's profit, incidental and overhead expense @ 10% of estimated rate

Total impact of GST for the purpose of CTC

M/s Kiran Electrical works (BID ID -1112131)