1.

A three-phase M-3 converter is operated from a 3-phase, 230 V, 50 Hz supply with load resistance R = 10 Ω. Find the value of firing angle if an average output voltage of 50% of the maximum possible output voltage is required.Hint: α > 30°.

A. 92.7°
B. 67.7°
C. 45°
D. 75.7°
Answer» C. 45°


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