Which of the following is NOT correct with reference to delta-star type distribution transformers application?
1
In delta-star type transformer, large, unbalanced loads can be handled without any difficulty.
2
In delta-star type transformer, no distortion is produced by third harmonic components.
3
In delta-star type transformer, secondary voltage is in phase with the primary voltages.
4
In delta-star type transformer, fault protection is one of the primary advantages.