engineering recuitment GATE EE 2023-24 Test Series Electrical Machines Transformer Three Phase Transformer Connections
If the star side of the star-delta transformer shown in the figure is excited by a negative sequence voltage, then
1
\({V_{AB}}\;leads\;{V_{ab}}\;by\;{60^o}\)
2
\({V_{AB}}\;lags\;{V_{ab}}\;by\;{60^o}\)
3
\({V_{AB}}\;leads\;{V_{ab}}\;by\;{30^o}\)
4
\({V_{AB}}\;lags\;{V_{ab}}\;by\;{30^o}\)