Q:
The statements which support the points that auto transformers are disadvantageous as compared to 2-winding transformer?
I. Weight of conductor reduces
II. Direct electrical contacts
III. Leakage reactance reduces
IV. Lower short-circuit current
Answer & Explanation
Answer: C) II, IV
Explanation: Direct electrical contacts is a disadvantage to the auto transformer.
Short circuit current of the auto transformer is higher than the corresponding 2-winding transformer.
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