This course extends upon the concepts learned in Electrical and Electronics Fundamentals and establishes the core material required for power systems and protection & control courses. The course covers fundamental concepts in AC power, transformers and three-phase circuits. Topics include a review in complex numbers; three-phase theory ideal transformer, transformer losses and testing methods, special transformers such as distribution transformers, autotransformer, current and potential transformers and three phase transformers. The course is 50% theory and 50% practical.