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22-Elec-A6 Power Systems and Machines: December 2016

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

  1. Question 1 Three-Phase Plant Loads and Two-Wattmeter Method
  2. Question 2 Single-Phase Transformer Parameters, Efficiency and Regulation
  3. Question 3 Three-Phase Squirrel-Cage Induction Motor
  4. Question 4 DC Shunt Motor
  5. Question 5 Synchronous Motor on an Infinite Bus
  6. Question 6 Series-Parallel Magnetic Circuit with Air Gap

Start with Question 1 →

Paper format: Professional Engineers Ontario — 07-Elec-A6 Power Systems and Machines, December 2016. Closed-book; formula sheet supplied. Six questions of equal value; candidates answer any five. All six are solved here as a study resource. All ac voltages and currents are rms; three-phase voltages are line-to-line unless noted.

Reference texts: S. J. Chapman, Electric Machinery Fundamentals, 5th ed. (transformers, induction/synchronous machines, dc motors); J. D. Glover et al., Power System Analysis and Design, 6th ed. (three-phase power, two-wattmeter method, power-factor correction).