36kV PRIMARY SUBSTATION SWGR; TRANSFORMER SWGR UNIT;36kV;2000A;31.5kA; 2000 A BUS/CONTROL GEAR ASSEMBLY SUITS 110 V DC AUX SUPPLY C/W CURRENT TRANS- FORMERS FOR TRANSFORMER/ BZ HI and LI protection schemes (3 cores), and metering and withdrawable three phase voltage transformer comprising of three single phase units connected to the cable compartment. Associated wiring to the protection relays;