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The frequency of ripple in the output voltage of a three phase controlled bridge rectifier depends on

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  1. firing angle
  2. load inductance
  3. load resistance
  4. supply frequency

Answer (Detailed Solution Below)

Option 4 : supply frequency
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The frequency of ripple in the output voltage of a three-phase controlled bridge rectifier depends on the supply frequency. The output frequency is

f0 = n fS

Where n is the number of pulses in the output of the converter and fs is the supply frequency

Note:

Ripple factor depends on the firing angle, load inductance, and resistance.

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