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A 230 V, 50 Hz, one-pulse SCR controlled converter has extinction angle β = 210°. Find the circuit turn-off time

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in Power Electronics by (27.1k points)
A 230 V, 50 Hz, one-pulse SCR controlled converter has extinction angle β = 210°. Find the circuit turn-off time

(a) 10 m-sec

(b) 0

(c) 8.3 m-sec

(d) 5.4 m-sec

This question was addressed to me during an online exam.

This interesting question is from Single-Phase HW AC-DC-4 in section Converters of Power Electronics

1 Answer

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by (45.1k points)
Right option is (c) 8.3 m-sec

The best explanation: = 2π-β/ω

Where, π = 90°

ω = 2xπx50

β = 210°.

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