Q.

-Φ fully controlled rectifier is  

A. 5th
B. 7th
C. 3rd
D. 2nd
Answer» B. 7th
Explanation: only 6k±1 order harmonics are present in 3-Φ fully controlled rectifier. the second lowest order harmonic is 7th harmonic for k=1. third order harmonics are absent in
1.8k
0
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Electrical Drives and Controls (EDC)

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