Question

Circuit turn off time of an SCR is defined as the time
1. Taken by the SCR to turn off
2. Required for the SCR current to become zero.
3. For which the SCR is reverse biased by the commutation circuit.
4. For which the SCR is reverse biased to reduce its current below the holding current.

Answer 1

Correct Answer - Option 3 : For which the SCR is reverse biased by the commutation circuit.
It is defined as the time during which a reverse voltage is applied across the thyristor during its commutation process.