Topics Covered

Industrial motor controls, DC generators. Armature reaction in synchronous  generator. Two reaction analysis and concept of direct axis and quadrature axis reactance. Transient performances of rotating machines. Fundamentals of electromechanical energy conversions, energy storage. Generalized performance equations of machines. Interconnected system of alternators and load sharing. Excitation schemes of synchronous machines, starting of synchronous machines. Starting of induction motors, torque and speed control requirements. DC and AC motor control by traditional methods and by using SCRs. Electrical braking of DC and AC motors, Eddy current brakes. Amplidyne, Metadynes, synchronous converters, static power converters. Stepper motor principle, variable reluctance stepper motor.  Electrical machine design, design factors, design principles, transformer design, design of small single phase transformers, design of single phase induction motors.