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A 50 kVA, 3300/ 230 V single - phase transformer is connected as an auto-transformer shown in figure. The nominal rating of the auto-transformer will be
  • a)
    50.0 kVA
  • b)
    53.5 kVA
  • c)
    717.4 kVA
  • d)
    767.4 kVA
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A 50 kVA, 3300/ 230 V single - phase transformer is connected as an a...
V = 3300 volt
Vout = 3300 + 230
= 3530 volt
KVA rating of transformer
= VoutI2
= 3530 x 217.4
= 767.42 KVA
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Most Upvoted Answer
A 50 kVA, 3300/ 230 V single - phase transformer is connected as an a...
V = 3300 volt
Vout = 3300 + 230
= 3530 volt
KVA rating of transformer
= VoutI2
= 3530 x 217.4
= 767.42 KVA
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