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Calculate the average value of thyristor current in 3-Φ Full wave converter for the load current=27 A and α=6°.

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Calculate the average value of thyristor current in 3-Φ Full wave converter for the load current=27 A and α=6°.

(a) 9 A

(b) 4 A

(c) 5 A

(d) 9 A

The question was asked in exam.

My question is taken from Solid-State Switching Circuits in division Introduction to Solid-State Switching Circuits of Electric Drives

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The correct answer is (d) 9 A

Easy explanation: The average value of thyristor current in 3-Φ Full wave converter is Io÷3. It is the average value of the thyristor current. I(r.m.s)= Io÷3=9 A.

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