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

MCQOPTIONS

1.	Calculate the circuit turn-off time for 3-Φ Fully controlled rectifier if the firing angle is 170° and supply frequency is 50.5 Hz.
A.	32.4 msec
B.	35.2 msec
C.	39.3 msec
D.	31.5 msec
Answer» E.

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