| Course Unit Code | 410-2207/01 |
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| Number of ECTS Credits Allocated | 6 ECTS credits |
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| Type of Course Unit * | Compulsory |
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| Level of Course Unit * | First Cycle |
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| Year of Study * | Second Year |
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| Semester when the Course Unit is delivered | Summer Semester |
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| Mode of Delivery | Face-to-face |
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| Language of Instruction | Czech |
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| Prerequisites and Co-Requisites | Course succeeds to compulsory courses of previous semester |
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| Name of Lecturer(s) | Personal ID | Name |
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| BER30 | Ing. Petr Bernat, Ph.D. |
| KAC37 | doc. Ing. Petr Kačor, Ph.D. |
| Summary |
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| In the course students become familiar with dividing ot electric machines, with electrical materials and basic laws for electric machines. Basic principles of transformers and asynchronous machines and their operation characteristics are discussed. Students become familiar also with basic rules of winding. During laboratory excercises the operation states of electric machines are measured. |
| Learning Outcomes of the Course Unit |
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| The course objectives is to master theory of transformers and asynchronous machines, their properties and utilization. Then to master basic measurements of operation characteristics of machines. |
| Course Contents |
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Lectures:
1) Types of electric machines. Materials used by electric machines design.
2) Windings in electric machines
3) Enclosure, shape and cooling. Laws, equations and methods used in electric machines.
4) Principle and description of transformers. Operation states. Equivalent circuit. Phasor diagrams.
5) Three-phase transformers. Winding connection. Operation in parallel. Special types of transformers.
6) Magnetic field of electric machines. Types and function of winding.
7) Use of asynchronous machines. Design types and foundation dates. Function and operation state.
8) Energy bilance of asynchronous machines. Equivalent circuit. Torque.
9) Circle diagram of asynchronous machine.
10) Starting and speed control of asynchronous motors.
11) Asynchronous generator and brake.
12) Single phase induction motors.
13) Influence of harmonics on a asynchronous machines running.
Exercises:
Calculation excercise 1 of transformers.
Calculation excercise 2 of transformers.
Calculation excercise 1 of asynchronous machines.
Calculation excercise 2 of asynchronous machines - circle diagram design
Calculation excercise 3 of asynchronous machines.
Laboratories:
Familirization with laboratory practice, safety training, mark condition
Transformer measurement(no-load, short-circuit).
Measurement by three-phase transformer winding connection.
No-load test and locked-rotor test of asynchronous motor and load test of asynchronous motor.
Test
Credit.
Projects:
Project consists of elaboration of protocols from laboratory exercises, with values, diagrams and evaluation of results.
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| Recommended or Required Reading |
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| Required Reading: |
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Hindmarsh,J.: Electrical Machines and their Applications, Oxford,1970
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Keppert, S., Čermák, T.: Transformátory, skriptum VŠB Ostrava, 1984
Keppert, S.: Asynchronní stroje, skriptum VŠB Ostrava, 1984
Petrov,G.N.: El. stroje 1 a 2, ACADEMIA 1980
Bašta J. a kol.: Teorie el. strojů, SNTL/ALFA 1968
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| Recommended Reading: |
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Hindmarsh,J.: Electrical Machines and their Applications, Oxford,1970
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Keppert, S., Čermák, T.: Transformátory, skriptum VŠB Ostrava, 1984
Keppert, S.: Asynchronní stroje, skriptum VŠB Ostrava, 1984
Petrov,G.N.: El. stroje 1 a 2, ACADEMIA 1980
Bašta J. a kol.: Teorie el. strojů, SNTL/ALFA 1968
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| Planned learning activities and teaching methods |
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| Lectures, Tutorials, Experimental work in labs, Other activities |
| Assesment methods and criteria |
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| Task Title | Task Type | Maximum Number of Points
(Act. for Subtasks) | Minimum Number of Points for Task Passing |
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| Credit and Examination | Credit and Examination | 100 (100) | 51 |
| Credit | Credit | 45 | 25 |
| Examination | Examination | 55 | 6 |