# Recent questions tagged harmonic

1 answer 34 views

The second harmonic distortion is defined as the A) Ratio of amplitude of second harmonic component in the output to that of the fundamental frequency B) Harmonic distortion due to only second harmonic component C) Sum of distortion of first and second harmonic components in the output

1 answer 24 views

To get minimum harmonic distortion in the output, a 3-Ф to 3-Ф cyclo-converter requires :  (A) 12 SCRs (B) 18 SCRs (C) 36 SCRs (D) 72 SCRs

1 answer 236 views

The time period of third harmonic of power supply frequency, in milliseconds, is (A) 20 (B) 3.33 (C) 6.66 (D) 60

1 answer 17 views

The fractional-pitch used for eliminating 7th harmonic from the emf wave of an alternator is (A) 2/3 (B) 5/6 (C) 7/8 (D) 6/7

0 answers 13 views

Explain the sinusoidal harmonic reduction techniques for cylcoconverters.

1 answer 21 views

What is the harmonic filter?

0 answers 17 views

What is harmonic in power quality?

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