Fundamentals of energy transformation. Transformers. Ideal and real transformer. Kapp's diagram. Losses and usefulness. Three-phase transformers. Autotransformer. Measuring transformers. Transformer performances. Rotary machines and their models. Current lining and flow. DC machines. Induced voltage and developed torque. Mode of operation and performances. AC machines. Induced voltage and developed torque. Mode of operation of synchronous and asynchronous machines. Their performances. One-phase machines.

Knowledge and skills acquired

Knowledge of theoretical fundamentals, performances and modes of operation for electrical machines. Capability to differentiate between the properties of electrical machines and their concrete application.

Teaching methods

Lectures (3 hour/weekly), calculations practice (1 hour/weekly) and laboratory practice (1 hour/weekly)

Student requirements

Defined by the Student evaluation criteria of the Faculty of Electrical Engineering, Computer Science and Information Technology Osijek and paragraph 1.9

Monitoring of students

Defined by the Student evaluation criteria of the Faculty of Electrical Engineering, Computer Science and Information Technology Osijek and paragraph 1.9

Student assessment

Writing laboratory reports.

Obligatory literature

1. 1 Pyrhonen, Juha; Jokinen, Tapani; Hrabovcova, Valeria DESIGN OF ROTATING ELECTRICAL MACHINES John Wiley & Sons, 2008

2. 2 Wolf, R. Osnove električnih strojeva Školska knjiga, Zagreb 1991.

Pretraži literaturu na:

1. 1 Ivan Mandić, Veselko Tomljenović, Milica Pužar Sinkroni i asinkroni električni strojevi Tehničko veleučilište u Zagrebu, Zagreb, 2012.

2. 2 Piotrovskij, L.M. Električni strojevi Tehnička knjiga, Zagreb 1970.

3. 3 Dolenc, A. i dr. Transformatori I i II, skripta ETF Zagreb, 1978.

4. 4 Bego, V. Mjerni transformatori TE/8 JLZ, Zagreb 1982.

5. 5 Irving M. Gottlieb Practical Transformer Handbook Newnes, 2004

6. 6 Dolenc, A. i dr. Električni strojevi TE/4 JLZ, Zagreb 1973.

7. 7 Kelemen, T. Transformator TE/13 HLZ, Zagreb 1997.

Written and oral exam.

Course assessment

Conducting university questionnaires on teachers (student-teacher relationship, transparency of assessment criteria, motivation for teaching, teaching clarity, etc.). Conducting Faculty surveys on courses (upon passing the exam, student self-assessment of the adopted learning outcomes and student workload in relation to the number of ECTS credits allocated to activities and courses as a whole).

Overview of course assesment

1. distinguish and compare types of electrical machines

2. understand and explain the working principle of induction, synchronous and DC machines

3. categorise and explain the constructional design of electrical machines

4. properly use electric machines in practice

5. analyse and explain the operating conditions of asynchronous, synchronous and DC machines

6. analyse and solve selected numerical examples concering electrical machines

7. measure and evaluate basic electrical and mechanical physical quantities on electrical machines

Aktivnosti studenta: Vidi tablicu aktivnosti