Calculate the value of the Input power factor for 3-Φ Fully controlled rectifier if the firing angle value is 70°.(a) .32(b) .38(c) .31(d) .33I got this question at a job interview.This interesting question is from Solid State Controlled Drives in section Introduction to Solid State Controlled Drives of Electric Drives

Calculate the value of the Input power factor for 3-Φ Fully controlle

1.	Calculate the value of the Input power factor for 3-Φ Fully controlled rectifier if the firing angle value is 70°.(a) .32(b) .38(c) .31(d) .33I got this question at a job interview.This interesting question is from Solid State Controlled Drives in section Introduction to Solid State Controlled Drives of Electric Drives
Answer» The correct answer is (a) .32 Best EXPLANATION: The value of the input POWER factor for 3-Φ Fully controlled RECTIFIER is .95cos(70°)=.32. The input power factor is a product of DISTORTION factor and displacement factor.

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