In 3-Φ Semi-controlled rectifier calculate the average value of the voltage if the supply is 440 V and firing angle is 22°.(a) 571.5 V(b) 572.8 V(c) 548.3 V(d) 524.1 VI have been asked this question by my college professor while I was bunking the class.This intriguing question comes from Solid State Controlled Drives in division Introduction to Solid State Controlled Drives of Electric Drives

In 3-Φ Semi-controlled rectifier calculate the average value of the v

1.	In 3-Φ Semi-controlled rectifier calculate the average value of the voltage if the supply is 440 V and firing angle is 22°.(a) 571.5 V(b) 572.8 V(c) 548.3 V(d) 524.1 VI have been asked this question by my college professor while I was bunking the class.This intriguing question comes from Solid State Controlled Drives in division Introduction to Solid State Controlled Drives of Electric Drives
Answer» Right option is (B) 572.8 V To explain: In 3-Φ Semi-controlled RECTIFIER, the average value of the VOLTAGE is 3Vml(1+cos(∝))÷2π=3×440×√2(1+cos(22°))÷6.28=572.8 V.

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