tender for replacement of defective numerical line distance protection relay (siemenns make) with new numerical line distance pritection relay in relay panel of 220 kv banda (400) bay at 220 kv substation mahoba under etd hamirpur. sl. no. item description 1 details of work 2 following works are to be done for replacement of defective numerical line distance protection relay (siemens make) with new numerical line distance relay in relay panel of 220 kv banda (400) bay at 220 kv substation mahoba under etd hamirpur :- 3 supply and retrofitting of cyber secured numerical line distance proction relay for 220 kv feeder with following details along with retrofit material.funtions : 21l (5 zine-quad, 1 phase trip, 68 sotf, 50, 51/67 50n, 59n, 81u, 810 df/dt, 25, 79, 85, fault locator communication on iec61850, event logger disturbance recorder, time synchronization of sntp or irig- b, 5ct i/p, 5pt i/p 32 binary i/p and 27 binary o/p and software cd (pcm-600) or similar relay make abb siemens. 4 rates qouted by the bidders shall be without taxes. taxes applicable if any to paid extra