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Electrical Engineering

Module name (EN):
Name of module in study programme. It should be precise and clear.
Electrical Engineering
Degree programme:
Study Programme with validity of corresponding study regulations containing this module.
Mechanical Engineering / Production Technology, Bachelor, ASPO 01.10.2021
Module code: DBMAB-230
The exam administration creates a SAP-Submodule-No for every exam type in every module. The SAP-Submodule-No is equal for the same module in different study programs.
Hours per semester week / Teaching method:
The count of hours per week is a combination of lecture (V for German Vorlesung), exercise (U for Übung), practice (P) oder project (PA). For example a course of the form 2V+2U has 2 hours of lecture and 2 hours of exercise per week.
ECTS credits:
European Credit Transfer System. Points for successful completion of a course. Each ECTS point represents a workload of 30 hours.
Academic Year: 2
Mandatory course: yes
Language of instruction:
 Graded exam (Duration 150 min., 100 pts.)
 o The exam will be written in the 4th semester (Block 4A) according to the examination schedule.
 o Distribution
  - 70 pts. (105 min) on "Fundamentals of Electrical Engineering" and the associated laboratory exercises
  - 30 pts. (45 min) on "Electric Drive Systems" and the corresponding laboratory exercises
Prerequisites for receiving credits:
The achievement of at least 40 out of 100 points in the module exam.
The grade corresponds to the student’s performance in the module exam and is shown as a decimal grade according to the htw saar grading scheme.

[updated 28.04.2023]
Applicability / Curricular relevance:
All study programs (with year of the version of study regulations) containing the course.

DBMAB-230 (P720-0003) Mechanical Engineering / Production Technology, Bachelor, ASPO 01.10.2021 , study year 2, mandatory course
DBMAB-230 (P720-0003) Mechanical Engineering / Production Technology, Bachelor, ASPO 01.10.2024 , study year 2, mandatory course
Workload of student for successfully completing the course. Each ECTS credit represents 30 working hours. These are the combined effort of face-to-face time, post-processing the subject of the lecture, exercises and preparation for the exam.

The total workload is distributed on the semester (01.04.-30.09. during the summer term, 01.10.-31.03. during the winter term).
The total student study time for this course is 180 hours.
Recommended prerequisites (modules):
Recommended as prerequisite for:
DBMAB-340 Mechatronics and Technical Optics

[updated 15.02.2023]
Module coordinator:
Prof. Dr.-Ing. Jan Christoph Gaukler
Lecturer: Prof. Dr.-Ing. Jan Christoph Gaukler

[updated 11.06.2021]
Learning outcomes:
After successfully completing this module, students will be familiar with the basic laws and physical relationships of electrical engineering and have mastered their application in mechanical engineering and production technology. They will be able to classify and evaluate the analogies between mechanics and electrical engineering as well as the economic significance of electrical engineering in a superordinate context. Students will be able to design, draw and calculate simple electrotechnical circuits independently and choose between electrotechnical and mechanical solutions according to technical and economic aspects, or to complement solutions from both areas in a meaningful way. They will be familiar with the principles and methods for measuring electrical and non-electrical quantities and will be able to apply them. Students will be able to understand basic correlations in electrical engineering processes and select and apply adequate problem solving methods.
They will be able to name electrical machines and their components and analyze the operating behavior of electrical machines based on given data in order to calculate selected variables and characteristic curves. In doing so, they will use the usual equivalent circuit diagrams and graphical methods.
They will have a good command of the terms, symbols and language used in electrical engineering in order to be able to communicate in an interdisciplinary team with electrical engineers, among others.

[updated 28.04.2023]
Module content:
Fundamentals of Electrical Engineering:
• Electric field with quantities and methods:
  charge, current, current density, potential, voltage, field strength, force on charge carriers,
  Ohm´s law, resistance, conductance, electric circuit, source voltage, voltage drop, power,
  electric displacement flow, capacitance, EMC
• Magnetic field with quantities and methods: magnetic poles, source-free fields, right-hand rule,
  magnetic flux, induction flow-through, field strength, flow-through law, magnetic voltage, magnetic
  resistance, permeability, magnetic field constant, hysteresis, Lorentz force, induction law, generator,
  self-induction, counter-induction, inductance, transformer, eddy currents, energies and forces in magnetic field,
  passive components
• Calculating circuits with direct current:
  Kirchhoff´s laws, basic circuits, short circuit, open circuit, adaptation, energy and
  power, efficiency, non-linear resistances, graphical determination of operating point, resistance networks,
  meshed networks, systematic network analysis using the node and mesh method
• Calculating circuits for alternating current:
  Generating alternating current with an electrical machine, time average, effective value, passive sign convention,
  voltage and current at capacitance and inductance, series circuits with  
  alternating current, pointer diagrams, parallel circuits with alternating current, complex pointer in
  in alternating current technology, complex representation of resistances and conductance values with alternating current, active power,
  reactive power, apparent power, series and parallel resonant circuits, reactive power compensation.
• Three-phase electric power (three-phase current):
  connected three-phase system, power in the three-phase system, star/delta switching, neutral conductor currents,
  frequent cases of asymmetrical faults
Electric drive systems:
• Torque generation, electrical and mechanical power, rotary field generation and torque generation in
  three-phase machines
• DC machines:
  design, mode of operation, armature reaction, equivalent circuit, characteristic curve, generator and motor operation,
  speed setting, special designs, speed control
• Three-phase asynchronous machine:
  Design, operating principle, equivalent circuit, vector diagrams, characteristic curve, current locus curve, current displacement rotor, Three-phase asynchronous machine on
  frequency inverter
• Synchronous machine:
  design, rotor designs, excitation devices, equivalent circuit, vector diagrams, characteristic curve, current locus curves
• DC and three-phase motors on single-phase alternating current
Electrical engineering laboratory:
The “Elektrotechnisches Labor” (Electrical Engineering Laboratory) component provides practical training and enables the application of the knowledge acquired in the lectures by means of the following tests/exercises/experiments: Unloaded and loaded voltage divider, bridge circuit using the deflection method, filter circuit (RC low-pass filter), series resonant circuit, symmetrical and asymmetrical loading of a three-phase system (star circuit), three-phase asynchronous machine controlled by means of a frequency converter, recording a characteristic curve on a slip ring motor, fan control (bridge circuit with temperature-dependent resistor, threshold switch and transistor switch).

[updated 28.04.2023]
Teaching methods/Media:
Lecture: Lecture, demonstration, group work on concrete problems
Labs: Learning and experiencing scientific and technical interrelationships by means of experiments carried out in groups

[updated 28.04.2023]
Recommended or required reading:
• R. Busch: Elektrotechnik für Maschinenbauer und Verfahrenstechniker, Teubner Verlag
• R. Fischer, H. Linse: Elektrotechnik für Maschinenbauer, Teubner Verlag
• E. Hering, R. Martin, J. Gutekunst, J. Kempkes: Elektrotechnik und Elektronik für Maschinenbauer, Springer Verlag
• G. Flegel, K. Birnstiel, W. Nerreter: Elektrotechnik für Maschinenbau und Mechatronik, Hanser-Verlag.
• G. Hagmann: Grundlagen der Elektrotechnik, Aula Verlag.

[updated 28.04.2023]
[Sun Apr 14 02:54:46 CEST 2024, CKEY=aea, BKEY=aswmpt, CID=DBMAB-230, LANGUAGE=en, DATE=14.04.2024]