Engineering, 07.12.2019 01:31, ninilizovtskt

Asingle-phase thyristor-controlled rectifier supplies the lighting in a theater. the light control requires the reduction of the average dc voltage to 70% of the rated voltage when the lights are dimmed. the 60 hz ac input is 220 v, and the dc output rating is 120 v. the lights normally draw 2 kw at the rated conditions.

calculate the required delay angle

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Asingle-phase thyristor-controlled rectifier supplies the lighting in a theater. the light control r...