Course
EMV - Electrical safety and EMC
PDF Course Catalog Deutsche Version: EMV
Version: 3 | Last Change: 15.09.2019 20:19 | Draft: 0 | Status: vom verantwortlichen Dozent freigegeben
| Long name | Electrical safety and EMC |
|---|---|
| Approving CModule | EMV_BaET |
| Responsible |
Prof. Dr. Christof Humpert
Professor Fakultät IME |
| Level | Bachelor |
| Semester in the year | summer semester |
| Duration | Semester |
| Hours in self-study | 60 |
| ECTS | 5 |
| Professors |
Prof. Dr. Christof Humpert
Professor Fakultät IME |
| Requirements | Fundamentals of electrical engineering - Impedances in the AC circuit - Complex AC calculation - Three-phase system - Electric and magnetic alternating field - Dielectric and magnetic material properties |
| Language | German |
| Separate final exam | Yes |
Literature
Schwab, Kürner; Elektromagnetische Verträglichkeit (Springer)
Gonschorek; EMV für Geräteentwickler und Systemintegratoren (Springer)
Wolfsperger; Elektromagnetische Schirmung (Springer)
Gonschorek; EMV für Geräteentwickler und Systemintegratoren (Springer)
Wolfsperger; Elektromagnetische Schirmung (Springer)
Final exam
Details
Written examination, in some cases also oral examination, with the following elements:- Free text answers to inquire about the necessary knowledge (hazards, typical measures, electromagnetic interference)
- Text exercises for the calculation of fault currents, touch voltages, interference voltages in known and new systems
- Text exercises for the determination and analysis of interference spectra
- Text exercises for the analysis of systems and selection and dimensioning of protection and interference suppression measures
Minimum standard
50 % of the questions and tasks correctly solvedExam Type
Written examination, in some cases also oral examination, with the following elements:- Free text answers to inquire about the necessary knowledge (hazards, typical measures, electromagnetic interference)
- Text exercises for the calculation of fault currents, touch voltages, interference voltages in known and new systems
- Text exercises for the determination and analysis of interference spectra
- Text exercises for the analysis of systems and selection and dimensioning of protection and interference suppression measures
Learning goals
Knowledge
Electrical safety
- Effects of electrical current on the human body
- Network configurations and possible touch voltages
- Grounding, earth electrode, gradient area, step voltage
- Protective measures, protective insulation, protective equipotential bonding, safety extra-low voltage, protective separation, protective earthing, residual current circuit protection
- Protective devices, fuses, line safety switch, residual current devices
Electromagnetic compatibility
- Definitions, basic influencing model, level definition
- Description in time and frequency domain, Fourier series, Fourier transform
- sources of interference, differential-mode and common-mode interference, narrow-band interference sources, intermittent broadband interference sources, transient sources of interference (ESD, LEMP, SEMP, NEMP)
- Coupling mechanisms, galvanic coupling, capacitive coupling, inductive coupling, radiation coupling
- Interference suppression measures, electromagnetic screens, filters, lightning protection, surge arresters
- Effects of electrical current on the human body
- Network configurations and possible touch voltages
- Grounding, earth electrode, gradient area, step voltage
- Protective measures, protective insulation, protective equipotential bonding, safety extra-low voltage, protective separation, protective earthing, residual current circuit protection
- Protective devices, fuses, line safety switch, residual current devices
Electromagnetic compatibility
- Definitions, basic influencing model, level definition
- Description in time and frequency domain, Fourier series, Fourier transform
- sources of interference, differential-mode and common-mode interference, narrow-band interference sources, intermittent broadband interference sources, transient sources of interference (ESD, LEMP, SEMP, NEMP)
- Coupling mechanisms, galvanic coupling, capacitive coupling, inductive coupling, radiation coupling
- Interference suppression measures, electromagnetic screens, filters, lightning protection, surge arresters
Skills
Use protective measures
- Know hazards due to electric current
- Calculate touch voltages depending on the network configuration and the type of fault
- Select suitable protective measures according to standard
- Dimension protective measures
Analyze and evaluate interference spectra
- Assign interference spectra to typical sources of interference
- Calculate the interference spectrum using the Fourier analysis
- Determine the interference spectrum with simplified methods
- Reconstruct the time domain function from the interference spectrum
- Evaluate the effect of interference suppression measures on the basis of the interference spectrum
- Evaluate the influence on interference sink
Select and dimension interference suppression measures
- Select appropriate measures depending on the coupling mechanism
- Apply measures for differential-mode and common-mode interferences
- Select measures depending on the interference spectrum
- Dimension external lightning protection measures
- Calculate surge voltages in the case of lightning strikes
- Calculate the influence of filters
- Know hazards due to electric current
- Calculate touch voltages depending on the network configuration and the type of fault
- Select suitable protective measures according to standard
- Dimension protective measures
Analyze and evaluate interference spectra
- Assign interference spectra to typical sources of interference
- Calculate the interference spectrum using the Fourier analysis
- Determine the interference spectrum with simplified methods
- Reconstruct the time domain function from the interference spectrum
- Evaluate the effect of interference suppression measures on the basis of the interference spectrum
- Evaluate the influence on interference sink
Select and dimension interference suppression measures
- Select appropriate measures depending on the coupling mechanism
- Apply measures for differential-mode and common-mode interferences
- Select measures depending on the interference spectrum
- Dimension external lightning protection measures
- Calculate surge voltages in the case of lightning strikes
- Calculate the influence of filters
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 presentation slides for the lecture
Detailed exercise task collection with solutions
Electronic tutorials for self-study, questionnaire and task help sheets
Detailed exercise task collection with solutions
Electronic tutorials for self-study, questionnaire and task help sheets
Separate exam
none
Learning goals
Knowledge
Effects and limitation of overvoltages, types of surge arresters
Properties and influence of electrostatic discharges
Frequency spectra of conducted interference voltages
Basics of the normative specifications
Properties and influence of electrostatic discharges
Frequency spectra of conducted interference voltages
Basics of the normative specifications
Skills
Understand and implement complex texts and standards
Use calculation tools for EMC analysis
Plan EMC tests, analyze and modify test setups and compare them with normative specifications
Investigate sources of interference experimentally, measure interference spectra, compare with calculation results
Analyze and compare the effect of interference suppression measures and explain differences
Manage complex tasks in a team
Summarize, evaluate and interpret results in written form
Use calculation tools for EMC analysis
Plan EMC tests, analyze and modify test setups and compare them with normative specifications
Investigate sources of interference experimentally, measure interference spectra, compare with calculation results
Analyze and compare the effect of interference suppression measures and explain differences
Manage 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 tutorials and task collections for the lab exercises
Documents from standards
Documents from standards
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 excercisesObservation of the lab exercises perfomed independent and feedback
Evaluation of detailed reports of the lab exercises
Minimum standard
70 % of the written test correctly80 % of the measurement results correct
80 % of the evaluation performed correctly
80 % of the discussion makes sense
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