Star connected three phase transformer-Flow of third harmonic

Q.  A star connected three phase transformer is provided with tertiary delta connected winding which allows the flow of
- Published on 30 Oct 15

a. Second harmonic of exciting current
b. Third harmonic of exciting current
c. Fifth harmonic of exciting current
d. Seventh harmonic of exciting current

ANSWER: Third harmonic of exciting current

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    Discussion

  • Subas   -Posted on 15 Feb 19
    Please explain the answers

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