TRANSFORMER SWITCHGEAR UNIT;36KV;800A; 31.5 kA;1250 A BUS;METAL ENCLOSED FIXED SWITCHGEAR & CONTROL GEAR ASSY; SUIT 110 V DC AUX SUPPLY; C/W 3PH BUS VOLTAGE TRANSFORMER & CURRENT TRANSFORMERS FOR TRANSFORMER,BZ HI and LI protection schemes (3 cores). Associated wiring to the protection relays;