1.

In the manufacture of transformers, ANSI prescribes certain standards. What is this standard?

A. High voltage side should lead the low voltage side by 30° with Y - Δ or Y - Δ connections.
B. High voltage side should lead the low voltage side by 60° with Y - Δ or Y - Δ connections.
C. High voltage side should lag the low voltage side by 30° with Y - Δ or Y - Δ connections.
D. High voltage side should lag the low voltage side by 60° with Y - Δ or Y - Δ connections.
Answer» B. High voltage side should lead the low voltage side by 60° with Y - Δ or Y - Δ connections.


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