2. Aux Power supply 127 V (AC), 220 V (AC) , 125 V (DC)
3.Group of terminals should identified by engraving labels.
4.The distance between TB and race way should be 80mm.
5. 10% spare terminals should provide.
6. The bottom of any relay and test block shall not be less than 300mm from floor level.
7. Not more then 2 LOR in the row and 15 cm between lockout and 10mm other relays.
8.VT secondary should ground at CVT junction box and CT secondary should ground at first interning point of protection panel. For metering CT secondary grounding at control panel.
9. Wiring size a) CT and VT and less than 2.5 Sq mm b) SCADA , SOE, ANNU not less than 0.8 Sqmm c) SCADA control output signal and other control wires not less then 1.5 Sq mm.
