Question

An SCR has the peak forward voltage = 1000 V. Find the maximum voltage that the SCR can handle if employed in a B-2 type full controlled converter circuit. Use factor of safety (FOS) = 2.5

(a) 500 V

(b) 400 V

(c) 200 V

(d) 1000 V

This question was addressed to me in an internship interview.

This intriguing question originated from Single Phase FW AC-DC-4 in portion Converters of Power Electronics

Answer 1

The correct answer is (b) 400 V

The best explanation: In M-2 type configuration maximum voltage handled is Vm

Therefore, 1000/2.5 = 400 V.