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Main menu for Browse IS/STAG
Course info
KEV / ES
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Course description
Department/Unit / Abbreviation
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KEV
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ES
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Academic Year
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2023/2024
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Academic Year
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2023/2024
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Title
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Electrical Machines
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Form of course completion
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Exam
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Form of course completion
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Exam
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Accredited / Credits
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Yes,
5
Cred.
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Type of completion
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Combined
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Type of completion
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Combined
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Time requirements
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Lecture
2
[Hours/Week]
Tutorial
2
[Hours/Week]
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Course credit prior to examination
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Yes
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Course credit prior to examination
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Yes
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Automatic acceptance of credit before examination
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Yes in the case of a previous evaluation 4 nebo nic.
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Included in study average
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YES
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Language of instruction
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Czech, English
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Occ/max
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Automatic acceptance of credit before examination
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Yes in the case of a previous evaluation 4 nebo nic.
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Summer semester
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0 / -
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0 / -
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0 / -
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Included in study average
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YES
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Winter semester
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0 / -
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0 / -
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0 / -
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Repeated registration
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NO
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Repeated registration
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NO
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Timetable
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Yes
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Semester taught
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Winter + Summer
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Semester taught
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Winter + Summer
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Minimum (B + C) students
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10
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Optional course |
Yes
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Optional course
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Yes
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Language of instruction
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Czech, English
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Internship duration
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0
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No. of hours of on-premise lessons |
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Evaluation scale |
1|2|3|4 |
Periodicity |
každý rok
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Evaluation scale for credit before examination |
S|N |
Periodicita upřesnění |
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Fundamental theoretical course |
No
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Fundamental course |
No
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Fundamental theoretical course |
No
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Evaluation scale |
1|2|3|4 |
Evaluation scale for credit before examination |
S|N |
Substituted course
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KES/ES
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Preclusive courses
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KEV/ESA
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Prerequisite courses
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N/A
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Informally recommended courses
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KTE/YTE1 and KTE/YTE2 and KEV/PEM and KET/EM1 and KET/EM2 and KET/ETM
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Courses depending on this Course
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N/A
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Histogram of students' grades over the years:
Graphic PNG
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XLS
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Course objectives:
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To equip the students with the knowledge of electromechanical conversions and principles of operation of electrical machines, principles and operating properties and characteristics of various types of transformers and typical rotary machines. To give the information for the understanding of the principle of operation of electrical machines with permanent magnets, reluctance machines, stepping and ultrasonic motors. To make the students acquainted with basics of the design of an electrical machine.
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Requirements on student
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Acquiring the credit: Presence at all the classes, submitting correctly processed reports. To apply the knowledges, design the machine connection, realize the connection, put given connection into operation under laboratory conditions
Examination: written and oral form. To prove the knowledges of the topics presented. To be able to apply the mathematical relations to concrete examples. To analyze a specific connection of the electrical circuit and take a decision about its applicability for a given purpose.
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Content
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Lectures: 1. The total current law, self and mutual inductance, transformer principle, induces voltage 2. The phase diagram, per unit values, the winding connection, Hopkins's law 3. The Lorentz's law, the internal and external magnitudes, rotary field 4. The speed of the rotary field, rotary field of the 2ph and 3pfh system, the winding coefficient 5. Asynchronous machine, the principle of operation, run-up, slip, equivalent circuit 6. Mechanical power on the shaft of the machine, torque characteristic, run-up by the direct network connection, Y-D switching 7. SOFT START run-up, machine with the winding rotor, squirrel cage machine 8. Number of pole pair changing, speed control by the voltage and frequency of the supply source, braking, 1phase machine 9. Synchronous machine, principle of operation, motor and its run-up, phase diagram, self operated synchronous generator 10. The generator connected to the network, conditions, power control on the network, torque characteristic of the machine with the cylindrical rotor and salient poles 11. DC machines, principle of operation, description, induced voltage and torque, equivalent circuit, the characteristic in according to the excitation winding connection 12. Machines with permanent magnets, advantage and disadvantage, stepping machines 13. Ultrasonic machines, circle diagram of asynchronous machine
Laboratory classes: 1. Introduction, measurement instruments 2. Theory - transformer. Design, no load test, short circuit test, the 50 vs 60 Hz network, basic calculation 3. Measurement no.1 - 3ph transformer. Resistivity measurement, no-load test, voltage ratio 4. Theory - transformer. Parallel operation, per unit value, basic calculation 5. Measurement no.2 - Reactive power compensation 6. Theory - asynchronous machine. Basic design, rotor description, terminal box, name-plate parameters, induced voltage, basic calculation 7. Measurement no.3 - Asynchronous machine I. Slip measurement 8. Theory - asynchronous machine. Torque relation, energy balance, currents and voltage in various winding connection, circle diagram, self-operated asynchronous generator 9. Measurement no.4 - Asynchronous machine II. No load test resistivity measurement 10. Theory - synchronous machine. Self-operated generator and generator on the network 11. Measurement no.5 - Asynchronous machine III. Y-D comparison 12. Theory - DC machine, commutation. Permanent magnets 13. Conclusion, check reports
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Activities
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Fields of study
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Guarantors and lecturers
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-
Guarantors:
Doc. Ing. Bohumil Skala, Ph.D. (100%),
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Tutorial lecturer:
Ing. Lukáš Bouzek (100%),
Ing. Radek Čermák (100%),
Ing. Jiří Dražan (100%),
Ing. Zdeněk Frank (100%),
Ing. Bohumír Hána (100%),
Doc. Ing. Karel Hruška, Ph.D. (100%),
Doc. Ing. Vladimír Kindl, Ph.D. (100%),
Ing. Jan Laksar, Ph.D. (100%),
Ing. Lukáš Nekolný (100%),
Doc. Ing. Roman Pechánek, Ph.D. (100%),
Ing. Martin Skalický (100%),
Ing. Pavel Světlík (100%),
Ing. Jan Šobra, Ph.D. (100%),
Ing. Michaela Vachtlová (100%),
Ing. Lukáš Veg, Ph.D. (100%),
Ing. Martin Vlasák (100%),
Ing. Martin Zeman (100%),
Ing. Jiří Zíka (100%),
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Literature
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Basic:
Bartoš, Václav. Elektrické stroje. 1. vyd. V Plzni : Západočeská univerzita, 2006. ISBN 80-7043-444-9.
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Basic:
Bartoš, Václav. Elektrické stroje. Plzeň : Západočeská univerzita, 2000. ISBN 80-7082-221-X.
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Basic:
Petrov, Georgij N. Elektrické stroje 1 : úvod-transformátory. Vyd. 1. Praha : Academia, 1980.
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Basic:
Bašta, Jan; Chládek, Jaroslav; Mayer, Imrich. Teorie elektrických strojů. 1. vyd. Praha : SNTL, 1968.
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Extending:
Del Toro, Vincent. Basic electric machines. Upper Saddle River: Prentice Hall, 1990. ISBN 0-13-060146-2.
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Extending:
Sarma, Mulukutla S. Electric machines : Steady-State Theory and Dynamic Performance. 2nd ed. St.Paul : West Publishing Comp., 1994.
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Extending:
ŠTĚPINA, J. Fyzikální úvod do teorie elektrických strojů. ZČU v Plzni, 1995.
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Extending:
Hrabovcová, Valéria. Moderné elektrické stroje. 1. vyd. Žilina : Žilinská univerzita, 2001. ISBN 80-7100-809-5.
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On-line library catalogues
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Time requirements
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All forms of study
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Activities
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Time requirements for activity [h]
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Presentation preparation (report) (1-10)
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4
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Preparation for an examination (30-60)
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54
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Preparation for laboratory testing; outcome analysis (1-8)
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20
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Practical training (number of hours)
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26
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Contact hours
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26
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Total
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130
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Prerequisites
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Knowledge - students are expected to possess the following knowledge before the course commences to finish it successfully: |
popsat principy měření elektrického odporu, napětí a proudu |
popsat Lenzův, Faradayův a Kirchhoffovy zákony |
ovládat značení elektrotechnických veličin a jejich fyzikální jednotky |
Skills - students are expected to possess the following skills before the course commences to finish it successfully: |
navrhnout zapojení přístrojů pro měření výkonů v 3f sítích |
analyzovat interakci magnetických polí a elektrického proudu ve vodiči |
aplikovat základní matematické operace a elektrotechnické vztahy |
Competences - students are expected to possess the following competences before the course commences to finish it successfully: |
N/A |
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Learning outcomes
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Knowledge - knowledge resulting from the course: |
explain the principles of operation of transformers and electrical machines |
ovládat vztahy potřebné pro vyřešení výpočtu |
Skills - skills resulting from the course: |
apply the knowledge of the measurement in DC current circuits and perform the analysis of the electrical drive, summarize the requirements posed on it |
sketch out the scheme of a given existing connection of an electrical machine and perform the analysis of the electrical drive, summarizing the requirements placed upon it |
put the given connection into operation under the laboratory conditions |
Competences - competences resulting from the course: |
N/A |
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Assessment methods
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Knowledge - knowledge achieved by taking this course are verified by the following means: |
Test |
Combined exam |
Skills - skills achieved by taking this course are verified by the following means: |
Skills demonstration during practicum |
Individual presentation at a seminar |
Combined exam |
Competences - competence achieved by taking this course are verified by the following means: |
Combined exam |
Individual presentation at a seminar |
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Teaching methods
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Knowledge - the following training methods are used to achieve the required knowledge: |
Multimedia supported teaching |
Interactive lecture |
Skills - the following training methods are used to achieve the required skills: |
Practicum |
Laboratory work |
Competences - the following training methods are used to achieve the required competences: |
Interactive lecture |
Practicum |
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