Maxwell equations, Hopkinson's law, inner power of rotating machinery, Esson's factor, DC machinery, their principle, construction, winding, commutation, anchor reaction and its influence, dynamo with separate excitation, parallel, serial, compound, parallel operation of parallel and serial dynamos, DC motor with separate excitation, Leonard aggregate, motor with parallel, serial, and compound excitation, transformers, their principle, basic equations, magnetic balance, substitution diagram, one-phase transformer, phasor diagram, no load and short circuit losses, short circuit voltage, short circuit current, transformer total voltage drop, three-phase transformer, Y, D, and Z connection, apparent power, hour angle, parallel operation of transformers, unsymmetrical loading, autotransformers, measuring transformers, transformer dynamical short circuit current, transformer no load coupling on the network, AC machinery, their voltage induced in the winding, types of winding, rotating magnetic field, induction machines, their principle, slip, motoring, generating, and braking operation regimes, construction, substitution diagram, phasor diagram, power division and torque, starting by rotor resistance changing, double cage, vortex cage, mechanical characteristic, speed control, braking, one-phase induction motor, synchronous machines, their division, properties, alternator and synchronous motor principle, commutator machines, one-phase serial motor, characteristics, substitution diagram.
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The course deals with problems of rotating as well as nonrotating electric machines, such as mathematical model of the commutator machine, basic equations, magnetic field, commutation, single- and three-phase transformer, basic equations of harmonic current and voltage, influence of harmonics, efficiency, voltage drop, transient phenomena (switch to the network and cut-off), mathematical model of synchronous and induction machines, rotating magnetic field, induction machine (equivalent circuit, voltage equations, vector diagram, torque, starting and speed control, magnetic field harmonics and their influence), single-phase induction motor, operation of the synchronous machine on the network, its torque, stability, overload capacity, transient phenomena, cut-off, some special machines.
Passing this study subject the student obtains knowledge in the field of electric machines necessary for the following-up subjects "Electric Drives" and "Electric Traction I, II".
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