Calculate the circuit turn-off time for 3-Φ Fully controlled rectifi – McqOptions

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1.	Calculate the circuit turn-off time for 3-Φ Fully controlled rectifier if the firing angle is 13° and supply frequency is 49.5 Hz.
A.	730.2 msec
B.	740.8 msec
C.	754.5 msec
D.	755.1 msec
Answer» B. 740.8 msec

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