Details: supply and replacement of old, used & defective 33kv numerical basedover current & e/f and under voltage, over voltage and nutral displacement relays suitable for33kv triple feeder c&rpanel and capacitor bank unit (abb make) installed at 132kv s/s bindki by complete retrofitting of below given relay. the work include following works:- supply of numeric based non directional over current & e/f (idmt) relay (50/51n) also time delayed o/c, e/ffeather (rs-485) of abb/siemens/ schneider make relay having at least 6bi, 7bowith one alarm output, having auxiliary current 1a suitable for 110v auxiliary voltage, and communication interface rs-485/usb& also having neutral displacement relay (ndr-59n) with provision for both alarm trip setting and relay must be suitable for scada interfacing for33kv c&r panel of 2x5 mvar capacitor bank unit as per sample at 132kv s/s bindki. this job also includes retrofitting of new relay by cutting the ms sheet of relay’s size and mounting it with proper dril
Sector: Transmission