Calculate the value of the Input power factor for 3-Φ Fully controlled rectifier if the firing angle value is 90°.(a) 0(b) .2(c) .3(d) .4The question was posed to me in an interview for job.My doubt stems from Solid State Controlled Drives topic 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 90°.(a) 0(b) .2(c) .3(d) .4The question was posed to me in an interview for job.My doubt stems from Solid State Controlled Drives topic in section Introduction to Solid State Controlled Drives of Electric Drives
Answer» The correct option is (a) 0 Easiest explanation: The value of the INPUT power FACTOR for 3-Φ FULLY controlled rectifier is .95cos(90°)=0. The input power factor is a product of distortion factor and displacement factor.

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