railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical Machines Transformer Transformer Open Delta Connection
A ∆-∆ connected transformer is connected to V-V connected transformer. The ratio of VA rating of the V-V connected transformer and ∆-∆ connected transformer is:
1
0.777
2
0.577
3
0.677
4
0.877