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A three phase full converter bridge is connected to supply voltage of 240 V per phase and a frequency of 50 Hz. The source inductance is 5 mH and load current an dc side is constant at 18 A at 30° firing angle. The percentage voltage regulation due to source inductance is _____
    Correct answer is '5.2-5.8'. Can you explain this answer?
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    A three phase full converter bridge is connected to supply voltage of ...
    Voltage at no load = 
    Voltage regulation due to source inductance
    = 5.55 %
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    A three phase full converter bridge is connected to supply voltage of ...
    ° firing angle. Find the average and rms values of output voltage and current.

    Solution:

    Given parameters are:

    Supply voltage per phase (Vp) = 240 V

    Frequency (f) = 50 Hz

    Source inductance (L) = 5 mH = 0.005 H

    Load current (Idc) = 18 A

    Firing angle (α) = 30°

    The output voltage of a three-phase full converter bridge can be given as:

    Vo = Vp * sqrt(3) * cos(α)

    Vo = 240 * sqrt(3) * cos(30°)

    Vo = 393.4 V

    The average output voltage can be given as:

    Vo_avg = (2/π) * Vo

    Vo_avg = (2/π) * 393.4

    Vo_avg = 249.1 V

    The rms output voltage can be given as:

    Vo_rms = Vo / sqrt(2)

    Vo_rms = 393.4 / sqrt(2)

    Vo_rms = 278.3 V

    The load current on the dc side is constant at 18 A, and hence the average and rms values of the output current will also be 18 A.

    Therefore, the average and rms values of the output voltage and current are:

    Average output voltage (Vo_avg) = 249.1 V

    RMS output voltage (Vo_rms) = 278.3 V

    Average output current (Io_avg) = 18 A

    RMS output current (Io_rms) = 18 A
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    A three phase full converter bridge is connected to supply voltage of ...
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    A three phase full converter bridge is connected to supply voltage of 240 V per phase and a frequency of 50 Hz. The source inductance is 5 mH and load current an dc side is constant at 18 A at 30° firing angle. The percentage voltage regulation due to source inductance is _____Correct answer is '5.2-5.8'. Can you explain this answer?
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