Question

A current commutated chopper is fed from a source of 230 V. Its commutating components are L = 20 μH and C = 50 μF. Find the value of peak commutating current.

(a) 233 A

(b) 59 A

(c) 363 A

(d) 198 A

This question was posed to me during an interview for a job.

The above asked question is from Thyristor Chopper Circuits-2 topic in section Choppers of Power Electronics

Answer 1

Right option is (c) 363 A

The best I can explain: I = V √(C/L) = 230 x √(50/20) = 363.66 A.