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What is the formula for output voltage for 3-Φ Full wave bridge rectifier for R load for α < 60°?

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What is the formula for output voltage for 3-Φ Full wave bridge rectifier for R load for α < 60°?

(a) 2Vml(cos(∝))÷π

(b) 3Vml(cos(∝))÷2π

(c) 3Vml(cos(∝))÷π

(d) 6Vml(cos(∝))÷π

The question was posed to me in an interview for job.

My question comes from Solid-State Switching Circuits topic in section Introduction to Solid-State Switching Circuits of Electric Drives

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Best answer
Right choice is (c) 3Vml(cos(∝))÷π

Explanation: The output voltage of 3-Φ Full wave bridge rectifier for R load is 3Vml(cos(∝))÷π for α < 60°. Conduction will only remain from 60°+α to 120°+α.

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