Three Phase Primary Connections

[@tedlahm5740]

Suggestion: On the triangular DELTA drawing. We could label the WINDING ends as H1 and H2 . This would help the NEW LEARNER visualize the concept. thank you

[@tedlahm5740]

Question: On the wye primary single bushing 3 phase configuration. What would happen if the GROUND connection to the EARTH became disconnected? I see no parallel neutral back to the substation? PS. wonderful presentation.