22-Elec-A6 Power Systems and Machines, December 2014: worked solutions

Exam format. Professional Engineers Ontario / Engineers Canada national examination 07-Elec-A6 Power Systems and Machines, Fall (December) 2014. Closed book; approved Casio/Sharp calculator; formula sheet supplied. Part A is compulsory (20 multiple-choice questions, 1 mark each, −½ per wrong answer). Part B asks the candidate to solve any 4 of 5 problems; a complete paper is FIVE questions. All AC quantities are RMS; three-phase voltages are line-to-line and powers are totals unless noted. Every Part B problem is worked below as a study resource.

Reference texts.

S. J. Chapman, Electric Machinery Fundamentals, 5th ed. (McGraw-Hill) — transformers, induction motors, synchronous machines, DC machines, magnetic circuits.
J. D. Glover, M. S. Sarma & T. J. Overbye, Power System Analysis and Design, 6th ed. (Cengage) — balanced three-phase circuits, power-factor correction.
C. K. Alexander & M. N. O. Sadiku, Fundamentals of Electric Circuits, 7th ed. (McGraw-Hill) — AC power, complex phasor methods.

22-Elec-A6 Power Systems and Machines: December 2014