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Calculate the conduction angle in purely inductive load if the firing angle is π÷2.(a) 205°(b) 175°(c) 180°(d) 195°The question was posed to me by my school principal while I was bunking the class.The doubt is from Solid State Controlled Drives in section Introduction to Solid State Controlled Drives of Electric Drives

Answer»

The correct CHOICE is (C) 180°

For explanation I would SAY: The conduction angle in the purely inductive load is β-α=2(π-∝)=2(180°-90°). The conduction angle is the angle for which the current exists in the circuit. The average VALUE of the voltage in a purely inductive load is zero.



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