A single-phase 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.

Question

A single-phase 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.

1 Answer

hutan · Answer 1 · 2022-10-07T20:56:01+0000

The correct option is (a) 124°

Best explanation: We have,

Vo = E + IR

Vo = 2Vm/π x cosα . . . (i)

Substitute the given values to discover α = 124°

Note that as the power is flowing from DC to AC E has to be negative.

E = -120V.

Use 1 to find the firing angle.

A single-phase 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.

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