Paper format. National Exams,
December 2014 — 07-Elec-B7 Power Systems Engineering. Open book, three hours,
any non-communicating calculator permitted. Seven problems; the paper states that any
five constitute a complete paper and that only the first five appearing in the answer
book are marked, and that all questions are of equal value.
All seven are solved here, because the set is a study resource rather than a
sitting.
Reference texts.
- M. E. El-Hawary, Electrical Power Systems: Design and Analysis, rev. ed.,
IEEE Press/Wiley — the source of this paper's notation and method: the ABCD
two-port and long-line model, the two-reaction salient-pole machine, per-unit
transformer modelling, the linearised load flow, sequence networks and the equal-area
criterion.
- J. D. Glover, T. J. Overbye and M. S. Sarma, Power System Analysis and
Design, 6th ed., Cengage — transmission-line parameters and the long-line
model (Ch. 4–5), power flow (Ch. 6), symmetrical faults (Ch. 7), symmetrical
components and unsymmetrical faults (Ch. 8–9), transient stability (Ch. 11).
- J. J. Grainger and W. D. Stevenson, Power System Analysis, McGraw-Hill
— network reduction, sequence networks and fault calculation.
- S. J. Chapman, Electric Machinery Fundamentals, 5th ed., McGraw-Hill
— transformer losses and equivalent circuits (Ch. 2), synchronous machines
(Ch. 4–5).
- Canadian practice: CSA C22.1 Canadian Electrical Code Section 10
(grounding and bonding), CSA C22.3 No. 1 Overhead Systems, CSA Z462
Workplace Electrical Safety (arc-flash energy from the fault currents
computed here), and IEEE Std 142 for industrial system grounding.
