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Electronics and Communication Engineering (ECE) : Power Electronics - Quiz(MCQ)
The average value of the output voltage, in a 3-phase half wave diode rectifier with Vml as the maximum line voltage value, is given by the expression
A)
Vml/3Ï€
B)
2Vml/3Ï€
C)
3Vml/2Ï€
D)
3Vml

Correct Answer : Option (C) :   3Vml/2Ï€


Explanation : The average value can be obtained by
3 x [ 1/2π x Vml sin ωt d(ωt) ]
The integration runs from π/6 to 5π/6 as the diode is conducting for 120 degrees each.

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