1. WHILE APPLYING VOLTAGE IN ONE PHASE OTHER TWO PHASE SHOULD BE EARTH
2. 380 KV APPLIED VOLTAGE FOR NEW SYSTEM = IMPULSE VOLTAGE X 40 % X 80%
EXAMPLE : - FOR 380KV 1425KV X 0.4 X 0.8 = 515 KV
3. SECOND TIME = Un X 1.2 = 380KV =454 KV
4. MEASURE SECONDARY VOLTAGE IN FLUK MULTIMETER 187 DON'T USE OTHER MULTIMETER
5. IF NEAR BUS IS ALREADY CHARGED ONLY SWITCHING TEST IS DONE . MEANS NEW BUS AND EQUIPMENT IS CHARGED WITH RATED VOLTAGE AND MONITOR 24 HOURS.