Course
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 |
| 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 tasksExam Type
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
Learning goals
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
* 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
- 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 literature
keine/none
Special requirements
none
Accompanying material
- Electronic lecture notes
- Detailed exercise task collection with solutions
- Detailed exercise task collection with solutions
Separate exam
none
Learning goals
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
* 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 literature
keine/none
Special requirements
none
Accompanying material
Electronic instructions for the lab exercises
Separate exam
Exam Type
working on projects assignment with your team e.g. in a lab)Details
Written test to control the preparation of the lab excercisesEvaluation 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 correctly80% 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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