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In a 3 phase full converter, the firing angle is less than 60º. The instantaneous output voltage
  • a)
    will have positive part only
  • b)
    will have both positive and negative parts
  • c)
    may have both positive and negative parts
  • d)
    will have negative part if load is inductive
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
In a 3 phase full converter, the firing angle is less than 60º. T...
If the firing angle in a 3-phase full converter is less than 60 degrees, it means that the thyristors are triggered earlier in each half-cycle of the input voltage waveform. This results in a larger portion of the input voltage being converted to the desired output voltage.

Typically, in a full converter, the thyristors are triggered at a firing angle between 0 and 180 degrees, with 0 degrees corresponding to the beginning of each half-cycle and 180 degrees corresponding to the midpoint of each half-cycle. By adjusting the firing angle, the output voltage and current can be controlled.

When the firing angle is less than 60 degrees, it means that the thyristors are triggered closer to the beginning of each half-cycle. This allows for a larger portion of the input voltage waveform to be converted, resulting in a higher average output voltage and current. However, it also leads to higher harmonic content in the output waveform.

Overall, adjusting the firing angle in a 3-phase full converter allows for control of the output voltage and current levels, but it is essential to consider the trade-off between output quality and efficiency.
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In a 3 phase full converter, the firing angle is less than 60º. The instantaneous output voltagea)will have positive part onlyb)will have both positive and negative partsc)may have both positive and negative partsd)will have negative part if load is inductiveCorrect answer is option 'A'. Can you explain this answer?
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