Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)
Paper format: Professional Engineers Ontario / EGBC national exam 07-Elec-A6 Power Systems and Machines — Fall (December) 2015. Closed book; formula sheet supplied. FIVE questions, all of equal value (20 marks each). All AC voltages and currents are rms; three-phase quantities are line-to-line voltages and total power unless stated otherwise.
Reference texts: S. J. Chapman, Electric Machinery Fundamentals, 5th ed. (transformers Ch 2; DC machines Ch 8–9; induction motors Ch 6; synchronous machines Ch 4–5); T. Wildi, Electrical Machines, Drives, and Power Systems, 6th ed. (three-phase circuits, power-factor correction, two-wattmeter method).
