railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test Power Systems PU System and Symmetrical Components Per Unit System
If the impedance value of an 11 kV, 25 MVA transformer is 0.3 p.u., then find the per unit impedance value of a 22 kV, 50 MVA transformer.
1
0.1 p.u.
2
0.075 p.u.
3
0.3 p.u.
4
0.15 p.u