Details: installation and commissioning of two nos. of ngr monitoring system along with fail safe arrangement for two nos. 11kv/3.3kv, 1mva transformer at 6 no and 9 no sub-station at dalurband colliery. (inclusive of epf/cmpf) fail safe neutral grounding resistor monitoring relay suitable for 3.3 kv secondary voltage , neutral voltage sensor earth fault relay digital , including reactor for control fault current neutral current transformer (epoxy moulded 11kv grade) non magnetic stainless steel grid resistance type ss 304 38 +/- 10 % out door type made up of 2 mm crca sheet steel enclosure with hinged front door with top canopy duly powder coated paint conforminig to ip -55 complete with fail safe relay free standing and floor mounting type starting an ending stud with insulator for resistor terminal box both side auxiliary wiring with different type lugs ,socket , terminal , fault and power indication lamp , test , reset push switch , auxiliary contactor unit for tripping , buzzer for fault
Sector: Mining