AT-T connection has higher ratio of utilizax that n a V - V connection only when

AT-T connection has higher ratio of utilizax that n a V - V connection only when 

1. Identical transformers are used 

2. Load power factor is leading 

3. Load power factor is unity 

4. Non-identical transformers are used 
by

1 Answer

Answer :

AT-T connection has higher ratio of utilizax that n a V - V connection only when Non-identical transformers are used 

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