Question :
A voltage commutated chopper has the following parameters:
Vs = 220 V. Commutation circuit: L = 20 μH and C = 50 μF.
Find the turn-off time for the main SCR with a constant load current of 80 A and Ton = 800 μsecs.
1. 137.5 μs
2. 1075 μs
3. 49.67 μs
4. 200 μs
Answer :
1 - 137.5 μs
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