The laws of electromagnetism related to the operation of electrical machines (Ampere's law, Faraday's law, and Lorentz's law). Types of electrical machines: transformers and electromechanical converters. Transformers: design fundamentals, the principle of operation, power losses and power balance. Rotating electromechanical converters: DC machines and AC machines (induction and synchronous machines). DC machines: construction and principle of operation, mathematical model, mechanical characteristic, speed control methods, power losses and power balance. Static converters as a power actuator for DC machines. Induction machines: construction and operating principles, three-phase stator winding, cage rotor and wound rotor, rotating magnetic field, equivalent circuit, torque expression, mechanical characteristic, speed control methods, losses and power balance. Static converters as a power actuator for induction machines. Single-phase induction machines. Synchronous machines: construction and operating principles, three-phase stator winding, construction of the rotor, rotating magnetic field, mechanical characteristic, losses and power balance. Inverter-supplied synchronous machines. Fundamentals of electric drives. Electric drive systems in industrial applications and electric vehicles.