VA rating of the autotransformer

Q.  For a two winding transformer if VA rating is given by (VA)tw and K is the transformation ratio of an autotransformer then the VA rating of the autotransformer is given by
- Published on 30 Oct 15

a. (K/(K-1)) * (VA)tw
b. (K/(1-K)) * (VA)tw
c. ((1-K)/K) * (VA)tw
d. ((K-1)/K) * (VA)tw

ANSWER: (K/(K-1)) * (VA)tw

Related Content

➨ Post your comment / Share knowledge


Enter the code shown above:

(Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)
▲