ISRO Electrical Engineering (EE) 2013 - Question 70

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Use of a reverse conducting thyristor in place of antiparallel combination of thyristor and feedback diode in an inverter:

  • A. Effectively minimizes the peak commutating current
  • B. Decreases the operating frequency of operation
  • C. Minimizes the effects of load inductance on the commutation performance
  • D. Causes deterioration in the commutation performance

Answer: C. Minimizes the effects of load inductance on the commutation performance

Explanation: Use of a reverse conducting thyristor (RCT) integrates the anti-parallel diode into a single wafer, minimizing lead inductance and its effects on commutation performance.

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