engineering recuitment PGCIL Diploma Trainee Mock Test 2024 Power Systems PU System and Symmetrical Components Per Unit System
The per unit impedance Z(Pu) in 3 - phase system is -
1
\(\rm Z(Ω) × (MVA_B)/(kV)_B^2\)
2
\(\rm Z(Ω) × (kV)_B^2/(MVA_B)\)
3
1000 × (kV)B/\(\sqrt{3}\) IB
4
1000 × (kV)B/IB × 106