Course­ Manual EMA

Electrical Machines

PDF Course Catalog Deutsche Version: EMA

Version: 1 | Last Change: 19.09.2019 16:47 | Draft: 0 | Status: vom verantwortlichen Dozent freigegeben

Long name Electrical Machines
Approving CModule EMA_BaET
Responsible
Prof. Dr. Wolfgang Evers
Professor Fakultät IME
Valid from summer semester 2022
Level Bachelor
Semester in the year summer semester
Duration Semester
Hours in self-study 60
ECTS 5
Professors
Prof. Dr. Wolfgang Evers
Professor Fakultät IME
Requirements - Laws of the DC and AC circuit
- Complex AC calculation
- Three-phase systems
- Electromagnetism: field strength, flux density, flux, magnetic circuits, induced voltage
Language German
Separate final exam Yes
Literature
Rolf Fischer, Elektrische Maschinen, Carl Hanser Verlag, München, 2017, ISBN 978-3-446-45218-3
Final exam
Details Written examination, in some cases also oral examination, with the following content:
- Calculation of the equivalent circuit diagram values and static load cases of a commutator machine
- Calculation of the equivalent circuit values and static load cases of a three-phase asynchronous machine
- Calculation of the equivalent circuit values and static load cases of a three-phase synchronous machine
Minimum standard Achieving 50% of the points in the tasks
Exam Type EN Klausur

Learning goals
Goal type Description
Knowledge - Transformer
* Equivalent circuit diagram
* Choice of translation ratio
* Operating behavior
* Structural design
* Efficiency
* Growth laws
* Three-phase transformer
* Autotransformer
- DC machine
* Construction of the DC machine
* Operation of the DC machine
* Pole pair number
* Excitation field
* Structure of the armature winding
* Induced voltage, torque, voltage equation
* Operating behavior
* Permanent magnets
* Commutation
* Armature reaction
- Drehfeldtheorie
- Asynchronous machine
* Structure, effect
* Basic equations, equivalent circuit diagrams
* Operating behavior
* Pie chart
* Speed setting
* Asynchronous generator
* Squirrel cage
- Synchronous machine
* Effect
* Structural design
* Equivalent circuit diagram, phasor diagram
* Idle, permanent short
* Island operation
* Operation on the network
Skills - Calculation of equivalent circuit values of electrical machines
- Calculate static operating points of electrical machines
Expenditure classroom teaching
Type Attendance (h/Wk.)
Lecture 2
Exercises (whole course) 2
Exercises (shared course) 0
Tutorial (voluntary) 0
Special requirements
none
Accompanying material - Electronic lecture notes
- Detailed exercise task collection with solutions
Separate exam No

Learning goals
Goal type Description
Skills - Plan tests and perform them safely
* Analyze, modify and verify experimental setups
* Apply security rules
- Carry out measurements on electrical machines
* Explain results
* Evaluate and justify deviations from the theory
- Complete complex tasks in a team
- summarize, evaluate and interpret results in written form
Expenditure classroom teaching
Type Attendance (h/Wk.)
Practical training 1
Tutorial (voluntary) 0
Special requirements
none
Accompanying material Electronic instructions for the lab exercises
Separate exam Yes
Separate exam
Exam Type EN Projektaufgabe im Team bearbeiten (z.B. im Praktikum)
Details Written test to control the preparation of the lab excercises
Evaluation of the preparatory documents (calculation results)
Evaluation of the discussion with the students and of the lab exercises on the basis of a structured protocol
Evaluation of detailed reports of the lab exercises of the team
Minimum standard 70 % of the written test correctly
80% of the prepared calculation results correct
80 % of the measurement results correct
80 % of the evaluation performed correctly
80 % of the discussion makes sense

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