SinglePhase Full Wave ACDC Converter Objective Questions
Power Electronics Objective Questions & Answers
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In case of controlled rectifiers, the nature of the load current (continues or discontinuous) depends upon the
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In a single phase full converter, for discontinuous load current and extinction angle β > π, each SCR conducts for
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A single phase full converter feeds power to a RLE load with R = 6 Ω and E = 60 V. Find the average value of the load current when the supply voltage is 230 V rms AC and a firing angle = 50°.
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A singlephase full converter bridge, is connected to a RLE load. The source has a rms voltage of 230 V and the average load current is 10 A. Find the firing angle for which the power flows from AC source to the DC load. Consider E = 120 V, R = 0.4 Ω.
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An SCR has the peak forward voltage = 1000 V. Find the maximum voltage that the SCR can handle if employed in a B2 type full controlled converter circuit. Use factor of safety (FOS) = 2.5
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A single phase full wave midpoint SCR converter, uses a 230/200 V transformer with the centre tap on the secondary side. The P.I.V. per SCR is
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For the below shown converter configuration, find the expression for the average value of voltage across the resister R with Vs = Vm sinωt and firing angle = α.
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A single phase full controlled bridge converter is connected to load having R = 0.4 Ω, E = 120, L = 0.2 mH, Vs = 230V. The RMS value of load current is 10 A for a firing angle of 53.21°. Find the input power factor.
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A singlephase two pulse converter feeds RL load with a sufficient smoothing such that the load current does not fall to zero. If the resistance of the load circuit is increased then the
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A singlephase full converter bridge, is connected to a RLE load. The source has a rms voltage of 230 V and the average load current is 10 A. Find the firing angle for which the power flows from the DC load to the AC source. Consider E = 120 V, R = 0.4 Ω, L = 2 Henry.
Correct!
Wrong!
