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For α > 90°, 3-Φ Full wave bridge rectifier acts as a natural commutated inverter.

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For α > 90°, 3-Φ Full wave bridge rectifier acts as a natural commutated inverter.

(a) True

(b) False

The question was posed to me by my college professor while I was bunking the class.

Question is from Solid-State Switching Circuits in section Introduction to Solid-State Switching Circuits of Electric Drives

1 Answer

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The correct choice is (a) True

For explanation: The output voltage of 3-Φ Full wave bridge rectifier is 3Vml(cos(∝))÷π. For α > 90° the output voltage becomes negative. The power flows from DC to the AC side.

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