supply and retrofitting of existing electro mechanical - static relays with numerical relays , 7544810174 - supply of numerical relay for distance protection with mho and quad characteristics as per scope of work and tender specification . , 7544810074 - supply of numerical relay for o/c , e/f & lbb protection for 110kv line feeders as per scope of work and tender specification . , 7544810164 - supply of numerical relay for differential , over current , earth fault and lbb protection for transformer feeders as per scope of work and tender specification . , 7544815844 - supply of of numerical relay for cable differential protection with ofc cable as per scope of work and tender specification . , 7544810104 - supply od numerical relay for under voltage protection in bus pt panels as per scope of work and tender specification . , 7544810094 - supply numerical relay for overcurrent , earth fault and lbb protection for buscoupler panels as per scope of work and specification . , 7544810084 - supply of numerical relay for high impedance bus bar differential protection with required stablising resistors and metrosils as per scope of work and tender specification . , 7544810064 - supply of numerical relay for transformer standby earth fault protection as per scope of work and tender specification . , total , site works , charges for retrofitting of the following items as per scope of work and tender specification . the charges shall include to & fro , boarding & loding , local conveyance , insurance , etc for the service engineer . , 7544810174 - retrofitting of distance protection with mho and quad characteristics . , 7544810074 - retrofitting of o/c , e/f & lbb protection for 110kv line feeders . , 7544810164 - retrofitting of differential , over current , earth fault and lbb protection for transformer feeders . , 7544815844 - retrofitting of cable differential protection with ofc cable . , 7544810104 - retrofitting of under voltage protection in bus pt panels . , 7544810094 - retrofitting of overcurrent , earth fault and lbb protection for buscoupler panels . , 7544810084 - retrofitting of high impedance bus bar differential protection with required stablising resistors and metrosils . , 7544810064 - retrofitting of transformer standby earth fault protection . , total