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A single-phase semi-converter is having continuous conduction, as such each thyristor will conduct for an angle of

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A single-phase semi-converter is having continuous conduction, as such each thyristor will conduct for an angle of

(a) α

(b) π

(c) α+π

(d) π-α

This question was posed to me in examination.

My question is from Single Phase Semi-Converters-3 topic in chapter Converters of Power Electronics

1 Answer

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by (45.1k points)
Right answer is (d) π-α

The explanation is: From 0 to α there is no conduction. SCRs are gated at α and than naturally commutated at π. Hence, conduction angle = π-α.

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