Calculate the circuit turn-off time for 3-Φ Fully controlled rectifier if the firing angle is 110° and supply frequency is 50 Hz.
(a) 3.8 msec
(b) 5.2 msec
(c) 9.3 msec
(d) 8.7 msec
I got this question in a national level competition.
I'd like to ask this question from Solid State Controlled Drives in portion Introduction to Solid State Controlled Drives of Electric Drives