This book provides information and supporting data on the fundamentals of electrical power engineering in electrical utility companies, as well as in large industrial and commercial facilities with their own power systems. Included is coverage of electrical machines, electrical power plants, transmission lines and power system fault calculation, with emphasis placed on operations rather than design. The latest information on power plants and combined cycle and heat recovery cogeneration is provided, together with ideas about renewable energy sources. Readers are also given a perspective on magnetic field theory, power tranformers and synthronous machines. An appendix contains information on three-phase circuits and phasor representations.