420-4026/01 – Selected Chapters from Electrodynamics (VKED)

Gurantor departmentDepartment of Electrical EngineeringCredits6
Subject guarantordoc. Ing. Lubomír Ivánek, CSc.Subject version guarantordoc. Ing. Lubomír Ivánek, CSc.
Study levelundergraduate or graduateRequirementCompulsory
Year1Semestersummer
Study languageCzech
Year of introduction2016/2017Year of cancellation
Intended for the facultiesFEIIntended for study typesFollow-up Master
Instruction secured by
LoginNameTuitorTeacher giving lectures
IVA10 doc. Ing. Lubomír Ivánek, CSc.
ORS60 Ing. Petr Orság, Ph.D.
ZAJ02 Ing. Stanislav Zajaczek, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Credit and Examination 2+2
Part-time Credit and Examination 7+7

Subject aims expressed by acquired skills and competences

- to lead the students so they could affect in the design practice to magnetic forces, whether in cases where the effect is desired (electric motors, solenoids, etc.) or when it is needed the force action respected as a secondary issue in the design of electrical equipment (switchgear, substations, cable management, ...) - to familiarize students with the dangers of static electricity in the projected facilities associated with the storage of bulk materials, production and processing of paper, plastic foil, in the projection of hospital space, etc. - to highlight the possibility of capacitive interaction between the various electrical devices, to handle calculation of capacity of lines, busbars, etc. - to handle calculation of inductance conductors, induction interaction effect on the function of projected facilities - to point out the change in electrical resistance with temperature and frequency (skin effect), to explain the mechanism of transmission of electric energy in the surrounding area the conductor - to supplement the information of electromagnetic compatibility problems of interference radiated energy - to lead the students to use modern mathematical methods and software tools (QField, COMSOL) to visualize the electromagnetic field, for calculations of forces and calculation of parameters of electrical equipment

Teaching methods

Lectures
Tutorials

Summary

The subject is based on the requirements of designers for solving electrodynamic phenomena especially in heavy current electrical engineering. These problems were consulted with workers from various industrial companies and also based on the experience of the teacher in his design work at the project company ENERGOPROJEKT. The subject deals with the power effect of the electric field (separators, limitation of static electricity in the operations) and mainly with force effect of magnetism (forces in switchboards and switchboards, forces between busbars, interaction of cable distribution forces, etc.). An integral part consists of calculations of conduction capacities of various configurations, calculations of inductances of electrical devices, calculations of current conduction parts in dependence on frequency (skinefekt) and conduction of insulating elements. The course introduces students to the issue of electromagnetic compatibility in relation to radiated and received interfering energy.

Compulsory literature:

Ivánek,L.: Selected Chapters from electrodynamics - lectures Ivánek,L., Zajaczek,S.: Selected Chapters from electrodynamics - tutorials on exercises

Recommended literature:

Jackson, J.,D.: Classical Electrodynamics - third edition, John Wiley and sons, Inc.1999, ISBN 0-471-30932-X

Way of continuous check of knowledge in the course of semester

Obhajoba všech protokolů z laboratorních cvičení a projektu. Závěrečná zkouška - zodpovězení otázek vymezených v Moodle.

E-learning

Other requirements

Required is basic knowledge of physics. From math are expected knowledge of complex variables.

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

Lectures: 1. Physical concepts of electromagnetic fields 2. Maxwell's equations in differential and integral form 3. Electric field in conductors or dielectrics 4. Electrical conductivity, dependence of conductivity on temperature, superconductivity 5. Electrostatic forces and their use 6. Practical computing of capacity in electrical equipment 7. Practical calculations of inductance in electrical equipment 8. Energy in the electromagnetic field, the energy lost in the hysteresis cycle 9. Forces in the magnetic field 10. Eddy currents, skin effect and proximity effect, shielding electromagnetic fields 11. Electromagnetic interference due to radiation waves Laboratories: 1. Forces of two conductors at different positions relative to each 2. The influence of the skin effect on the impedance conductive objects 3. Dependence of the coil impedance at the frequency 4. Effect AC conductor in ferromagnetic grooves 5. Practical calculation of the interaction of two devices via the electromagnetic interaction Projects performed by computers: 1. Visualization of the effects of electrostatics in a specific case 2. Solving the effects of the magnetic field busbar

Conditions for subject completion

Part-time form (validity from: 2017/2018 Summer semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Credit and Examination Credit and Examination 100 (100) 51
        Credit Credit 45  10
        Examination Examination 55  6
Mandatory attendence parzicipation:

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.ZaměřeníFormStudy language Tut. centreYearWSType of duty
2021/2022 (N2661) Designing of Electrical Systems and Technologies K Czech Ostrava 1 Compulsory study plan
2020/2021 (N2661) Designing of Electrical Systems and Technologies P Czech Ostrava 1 Compulsory study plan
2020/2021 (N2661) Designing of Electrical Systems and Technologies K Czech Ostrava 1 Compulsory study plan
2019/2020 (N2661) Designing of Electrical Systems and Technologies P Czech Ostrava 1 Compulsory study plan
2019/2020 (N2661) Designing of Electrical Systems and Technologies K Czech Ostrava 1 Compulsory study plan
2018/2019 (N2661) Designing of Electrical Systems and Technologies P Czech Ostrava 1 Compulsory study plan
2018/2019 (N2661) Designing of Electrical Systems and Technologies K Czech Ostrava 1 Compulsory study plan
2017/2018 (N2661) Designing of Electrical Systems and Technologies P Czech Ostrava 1 Compulsory study plan
2017/2018 (N2661) Designing of Electrical Systems and Technologies K Czech Ostrava 1 Compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner