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22-Elec-B8 Power Electronics and Drives: May 2017

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1 Snubbers, and an a.c. voltage controller driving an inductive motor
  2. Question 2 SCR turn-off time, and a half-wave controlled rectifier with an R-L load
  3. Question 3 Current-fed versus voltage-fed inverters, and single-pulse modulation harmonics
  4. Question 4 Series smoothing reactors, and a basic chopper with an R-L load
  5. Question 5 Under-frequency operation, and a current-source-inverter-fed induction motor
  6. Question 6 Types of dc drive, and a bridge-fed separately excited dc motor

Start with Question 1 →

Paper format. National Exams, May 2017 — 16-Elec-B8, Power Electronics and Drives. Open-book, three hours, six problems of equal value (20 points each); the rubric states that any five questions constitute a complete paper. All six problems are worked here, and every sub-part is answered, because this set is a study resource rather than an exam script.

Reference texts.