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Calculate the value of the fundamental displacement factor for 1-Φ Full wave bridge rectifier if the firing α=17°.

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Calculate the value of the fundamental displacement factor for 1-Φ Full wave bridge rectifier if the firing α=17°.

(a) .98

(b) .19

(c) .56

(d) .95

The question was asked during an interview.

Enquiry is from Solid-State Switching Circuits in division Introduction to Solid-State Switching Circuits of Electric Drives

1 Answer

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Right answer is (d) .95

Best explanation: Fundamental displacement factor is the cosine of angle difference between the fundamental voltage and fundamental current. D.F=cos(∝)=cos(17°)=0.95.

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