259. A single phase transformer has rating of 15 kVA, 600/120 V. It is
reconnected as an auto-transformer to supply at 720 V from a 600
V primary source. The maximum load it can supply is
(a) 90 kVA. (b) 18 kVA. (c) 15 kVA. (d) 12 kVA.
Answers
Answered by
1
Answer:
good question..........
Answered by
2
Answer:
rated current in LV side =15x10'3/120=125A
KVAratting of auto transformer= VXI= 720X125=90000
i.e=90KVA
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