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valentina_108 [34]
3 years ago
15

A commercial facility has a three-phase, 277 volt, 1200 Amp service. What is the required nominal transformer size needed for th

is building?
a. 750 kVA
b. 500 kVA
c. 575 kVA
d. 633 kVA
e. 1,000 kVA
Engineering
1 answer:
alekssr [168]3 years ago
7 0

Answer:

The answer is "Option e".

Explanation:

Given value:

\to v_{ph}=277  \ \ \ \ \ \ \  I_{ph} =1200\\\\

vA= v_{Ph} I_{ph}  \  \ \ \to  for \ single \ phase\\\\=3v_{ph} I_{ph}  \ \ \ \ \ \to  for \ 3 - \phi  \\\\s = 3\times 277 \times 1200 \\\\

  =997.200 \ K VA\\\\= 1000 \ k VA

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