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In 3-Φ Fully controlled rectifier calculate the average value of the voltage if the supply is 400 V and firing angle is 45°.(a) 381.15 V(b) 382.16 V(c) 383.19 V(d) 384.25 VThis question was addressed to me in class test.I would like to ask this question from Solid-State Switching Circuits in portion Introduction to Solid-State Switching Circuits of Electric Drives

Answer»

The CORRECT option is (b) 382.16 V

For explanation I would say: In 3-Φ Fully controlled rectifier, the AVERAGE value of the voltage is3Vml(cos(∝))÷π=3×400×√2(cos(45°))÷3.14=382.16 V.



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