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A three-phase three-pulse converter would operate as a line commutated inverter when
  • a)
    30° < α < 60°
  • b)
    90° < α <180°
  • c)
    90° > α
  • d)
    it can never operate as a line commutated inverter
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A three-phase three-pulse converter would operate as a line commutated...
The output voltage is proportional to cosine of the firing angle α. If α goes above 90° then the output voltage is negative, meaning that it is operating as an inverter.
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Most Upvoted Answer
A three-phase three-pulse converter would operate as a line commutated...
A) The converter is supplied with three-phase AC voltage and the thyristors are triggered in a specific sequence to convert the input AC voltage into a variable frequency AC output voltage.
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A three-phase three-pulse converter would operate as a line commutated inverter whena)30° < α < 60°b)90° < α <180°c)90° > αd)it can never operate as a line commutated inverterCorrect answer is option 'B'. Can you explain this answer?
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