Learning objectives
The course provides the basic knowledge required for the usage of the most commonelectrical machine and power systems.
Course unit content
<br /> Electric machines classification. The main components of the electric machines. Joule losses and iron losses: the efficiency of the electrical machines. Transformer: ideal transformer and real transformer. no load operations and rated load operations. Voltage drop, power, losses and efficiency of electrical transformer. Three phases transformers. <br />Induction machines: mechanical and electrical behaviour. Induction motor start-up andvelocity regulation.<br />Direct Current machines: electrical and mechanical behaviour, start-up and velocity regulation.<br />Permanet Magnet Synchronous Machines (PMSM): A.C. and D.C. PMSM, electrical and mechanical behaviour.<br />Fundamental of power systems: trend toward growing power output of new thermal, nuclear, alternative and water generating station, electrical distribution systems of great and low magnitude, single phase transmission and 3-phase transmission.<br />Engineering of electrical transmission lines:resistance, inductance, inductive reactance, capacitance, capacitive reactance.Transmission linear models: the short transmission line, the medium lenght line, the long transmission line. Power cables (low, medium, high and extremely high voltage). Low voltage cables ( good polymers and compoud workability, cost and competivity). Fundamental of power flow solution: scope of power systems analysis, faults, protection and stability. Systems protection , circuit breaker, time current characteristic and charts, fuse time-current characteristics charts, ground-fault protected time current charateristic chart, coordination.
Bibliography
<br />Pietro Vezzani. Elementi di Progettazione elettrica. TNE Torino<br /><br />E.Bassi, A.Bossi ¿Macchine e Azionamenti Elettrici¿ UTET, Milano ISBN: 88-7933-184-1
