railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test Electrical Machines Transformer Regulation of a Transformer
What is per unit regulation in a transformer when V20 is the secondary terminal voltage on no-load and V2 is the secondary terminal voltage on given load?
1
(V2 - V20)/V20
2
(V20 - V2)/V2
3
(V2 - V20)/V2
4
(V20 - V2)/V20