railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test Electrical Machines Transformer Transformer Open Delta Connection
The ratio between the capacity of an Open-delta or V-V connection (of three-phase transformers) and the capacity of a Delta-delta connection (of three-phase transformers) is
1
57.7%
2
87.7%
3
67.7%
4
47.7%