This course aims to equip undergraduate students with all the necessary knowledge that will enable them to understand the basic principles of electrical engineering, the methods for solving direct current (DC) and alternating current (AC) circuits in both time and frequency domains, as well as the structure and analysis of the operation of DC and AC electric machines. 

1. Electrical quantities, active and passive components of direct and alternating current circuits. Kirchhoff, Ohm, and Thevenin laws used for solving electrical circuits.
2. Electrical quantities of alternating current expressed in the time and frequency domains.
3. Analysis of direct current (DC) circuits. Analysis of single-phase and three-phase alternating current (AC) circuits.
4. Magnetic circuits of DC and AC machines. Magnetic behavior of ferromagnetic materials.
5. Single-phase and three-phase power transformers. Special categories of transformers. Operation analysis, transformer testing, equivalent electrical circuits, measurements, and applications of transformers.
6. Rotating electrical machines. Basic parts of electrical machines. Creation of rotating magnetic fields. Generation of voltages in the machine windings. Development of torques in the machine. Losses and efficiency of the machine.
7. Direct current (DC) machines. Operation analysis of DC generators and motors in steady and transient (dynamic) states.
8. Induction (asynchronous) machines. Construction of three-phase and single-phase induction motors. Equivalent circuits, operation analysis in steady and dynamic states, power flow, motor starting, torque and speed control of induction motors.
9. Synchronous machines. Structure of synchronous generators (alternators) and synchronous motors. Equivalent circuits, operation analysis in steady and transient states, power flow, paralleling of alternators, operation of synchronous motors as
   synchronous, rotating capacitors.
10. Special types of motors. Single-phase induction motors, commutator AC motors, Universal motors, stepper motors, etc.
11. Simulation of operation of DC and AC motors using computer software.
12. Drive system calculations. Calculation of wire cross-sections for motor supply. Sizing of starting and speed/torque control arrangements for motors. Basic industrial automation systems for motors.
13. Power electronics configurations, inverters, rectifiers, cycloconverters, DC voltage choppers used for controlling the operation of DC and AC machines. Simulation of motor control using power converters.

1. Ηλεκτρικές Μηχανές, S. J. Chapman, 4η Έκδοση, Εκδόσεις ΤΖΙΟΛΑ, 2010, Θεσσαλονίκη.
2. Ηλεκτρικές Μηχανές, Π. Μαλατέστας, Εκδόσεις ΤΖΙΟΛΑ, 2012, Θεσσαλονίκη.
3. Electrical Machines, Drives, and Power Systems, T. Wildi, Sixth Edition, Prentice Hall, 2006.
4. Electric Machinery, A. E. Fitzgerald, Charles Kingsley, JR, Stephen D. Umans, Sixth Edition, McGraw Hill, 2003

Greek

Lectures, Practical Exercises