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22-Elec-A6 Power Systems and Machines: May 2017

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

  1. Question 1 Short-answer concepts
  2. Question 2 Single-phase transformer performance
  3. Question 3 Wound-rotor induction motor
  4. Question 4 Shunt DC motor with field weakening
  5. Question 5 Plant power-factor correction with a synchronous motor

Start with Question 1 →

Professional Engineers Ontario — 16-Elec-A6 Power Systems and Machines, May 2017. Closed-book; formula sheet supplied. Five questions of equal value; all five constitute a complete paper, and all are solved here. All ac quantities are rms; three-phase quantities are line-to-line and total real power unless noted.

Reference texts: S. J. Chapman, Electric Machinery Fundamentals, 5th ed. (transformers ch. 2, DC machines ch. 8, synchronous machines ch. 4–5, induction machines ch. 6); J. D. Glover et al., Power System Analysis and Design, 6th ed. (per-phase and power-factor analysis, ch. 2).