| Course Unit Code | 410-4121/01 |
|---|
| Number of ECTS Credits Allocated | 6 ECTS credits |
|---|
| Type of Course Unit * | Choice-compulsory type A |
|---|
| Level of Course Unit * | Second Cycle |
|---|
| Year of Study * | First Year |
|---|
| Semester when the Course Unit is delivered | Summer Semester |
|---|
| Mode of Delivery | Face-to-face |
|---|
| Language of Instruction | Czech |
|---|
| Prerequisites and Co-Requisites | Course succeeds to compulsory courses of previous semester |
|---|
| Name of Lecturer(s) | Personal ID | Name |
|---|
| BER30 | Ing. Petr Bernat, Ph.D. |
| KAC37 | doc. Ing. Petr Kačor, Ph.D. |
| MIS01 | prof. Ing. Stanislav Mišák, Ph.D. |
| Summary |
|---|
| Ambient parameters and stress during operation of electrical machines, operating modes, failure states and their analysis, speed control of motors. Diagnostic and reliability of electrical machines. |
| Learning Outcomes of the Course Unit |
|---|
| The course objetives is to obtain knowledge necessary for intermediate level workers employed in operation, maintenance of electrical machines and in design of simple electrical drives. |
| Course Contents |
|---|
Lectures:
Parameters and definition of various operation ambient.
Degradation processes in electric machines and influence upon functional properties.
Operation and failure states of transformers.(Short circuit and connection to network).
Properties of asynchronous motor fed by no sinusoidal voltage.
Properties of asynchronous motor fed from frequency converter.
Starting up and braking of asynchronous motors. Kinds, methods and properties.
Starting-up of synchronous motors.
Synchronous machines short circuit.
DC machines operation. Slide contact function.
Properties of DC machines by feeding of wavy current.
Technical diagnostic. Sorts and manners of diagnostic.
Reliability and diagnostic of transformers, measurement and oil diagnostic.
Reliability of rotating electric machines.
Diagnostic of electric machines. Measurable quantities for electric machines single parts.
Exercises:
Ambient analysis and its action.
Voltage drop calculation by transformers operation.
Voltage drop calculation by starting-up of motors.
Motor power output calculation by various sorts of load.
Motor design for crane drives.
Laboratories:
Introducing to laboratory. Safety working. Conditions of study.
Measuring of Transformer switching, three-phase transformer asymmetry.
Circle diagram of asynchronous motor.
Measurement of asynchronous motor.
Measurement of characteristics of synchronous machines, time constants.
Short circuit measurement of synchronous generators.
Diagnostic of electrical machines.
Credit.
Projects:
Project consists of elaboration of protocols from laboratory exercises, with values, diagrams and evaluation of results and terminal work by students of combined study.
|
| Recommended or Required Reading |
|---|
| Required Reading: |
|---|
Hindmarsh, J.: Electrical machines and their applications Pergamon Press,Oxford,1970
|
Jezierski, E.: Transformátory - teoretické základy, ACADEMIA Praha, 1973
Leitl, R.: Spolehlivost elektrotechnických systémů, SNTL Praha, 1990
Heller, B. - Hamata, V.: Přídavná pole, síly a ztráty v asynchronním stroji, Československá akademie věd Praha, 1961
Hamata, V.: Hluk elektrických strojů, ACADEMIA Praha, 1987
|
| Recommended Reading: |
|---|
Hindmarsh, J.: Electrical machines and their applications Pergamon Press,Oxford,1970
Pyrhönen,J., Jokinen,T. Hrabovcová,V.: Design of rotating electrical machines, John Wiley & sons, Ltd. 2008 |
Hrabovcová,V., Rafajdus,P.: Elektrické stroje, teória a príklady, Žilinská univerzita, 2009
Heller, B. - Hamata, V.: Přídavná pole, síly a ztráty v asynchronním stroji, Československá akademie věd Praha, 1961
Hrabovcová,V.,Rafajdus,P., Franko,M., Hudák,P.: Meranie a modelovanie elektrických strojov, Žilinská univerzita, 2014
R. Fischer : Elektrische Maschinen. Carl Hanser Verlag, Munchen, Wien, 1992.
|
| Planned learning activities and teaching methods |
|---|
| Lectures, Tutorials, Experimental work in labs, Other activities |
| Assesment methods and criteria |
|---|
| Task Title | Task Type | Maximum Number of Points
(Act. for Subtasks) | Minimum Number of Points for Task Passing |
|---|
| Credit and Examination | Credit and Examination | 100 (100) | 51 |
| Credit | Credit | 45 | 25 |
| Examination | Examination | 55 | 6 |