Virtual Labs

a: it has no neutral connection b: we can get greater output voltage c: it provides a path for the triplen harmonics d: it provides better temperature stability

The power delivery and efficiency is low in which rectifier in reference to phases?

a: Single b: Three c: Both a and b d: None of these

Which of the following is the expression for the average output voltage in three phase half wave controlled rectifier with RL load?

a: 3/2π Vmp cosα b: 3√3/2π Vmp cosα c: 3√3/π Vmp cosα d: 3√3/2π Vml cosα

In which one of the following rectifiers is the direction of power flow is the source to load only?

a: Controlled b: Uncontrolled c: Both a and b d: None of these

For the three-phase half-wave controlled rectifier circuit with load resistance of 40 Ω the input supply is balanced three-phase with line-to-line voltage rating of 400 V, 50 Hz. Find the average output voltage Vout for a firing angle α = 60°?

a: 155 V b: 200 V c: 135 V d: 250 V

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