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Lecturer(s)
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Trnka Pavel, Prof. Ing. Ph.D., MBA
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Hornak Jaroslav, Ing. Ph.D.
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Kadlec Petr, Ing. Ph.D.
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Pihera Josef, Doc. Ing. Ph.D.
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Polanský Radek, Prof. Ing. Ph.D.
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Course content
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1. Dielectrics and insulating materials, dielectric circuits of electrical devices, reliability 2. Interaction of matter and electric field, the polarization of dielectrics from a macroscopic and microscopic point of view 3. Local internal fields in dielectrics, the polarization of dielectrics and its types. 4. Deformation polarization, relaxation polarization, double potential well model, ionic and dipole relaxation polarization. 5. Migration polarization, space charge and its influence on dielectric behavior, mathematical description of non-homogeneous dielectric behavior 6. Dielectric losses, dielectric absorption 7. The electrical conductivity of gaseous, liquid and solid dielectrics 8. Electric strength of gaseous, liquid and solid dielectrics 9. Major degradation factors, tests, standard tests, electrode systems 10. Composites electrical insulating materials and their components 11. Classification of insulation materials and systems based on thermal class 12. Modern electrical insulation materials, Nanocomposite dielectrics 13. Examples, models, applications in practice, evaluation
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Learning activities and teaching methods
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Laboratory work, Lecture
- Contact hours
- 26 hours per semester
- Practical training (number of hours)
- 26 hours per semester
- Preparation for an examination (30-60)
- 38 hours per semester
- Graduate study programme term essay (40-50)
- 43 hours per semester
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| prerequisite |
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| Knowledge |
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| to clarify the basic properties of dielectric materials |
| use basic theories of electrical circuits |
| use knowledge of the basics of electrical engineering |
| Skills |
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| use basic mathematical and statistical procedures |
| apply material knowledge |
| Competences |
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| N/A |
| N/A |
| learning outcomes |
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| Knowledge |
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| explain the basic principles of function/ role of dielectric within an electric circuit |
| describe polarization proces in a dielectric |
| describe the behavior of dielectrics in alternating and dc fields |
| justify the choice of the appropriate material in relation to the intended use |
| Skills |
|---|
| measure the complex permittivity of the dielectric material and analyze the data |
| describe the occurrence of the spatial charge and measure it |
| Competences |
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| N/A |
| teaching methods |
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| Knowledge |
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| Lecture |
| Lecture with visual aids |
| Skills |
|---|
| Practicum |
| Lecture |
| Seminar |
| Competences |
|---|
| Lecture |
| Lecture with visual aids |
| Practicum |
| assessment methods |
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| Knowledge |
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| Combined exam |
| Skills demonstration during practicum |
| Individual presentation at a seminar |
| Skills |
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| Skills demonstration during practicum |
| Individual presentation at a seminar |
| Competences |
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| Combined exam |
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Recommended literature
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F. Kremer and A. Schönhals. Broadband dielectric spectroscopy. New York: Springer, 2003. ISBN 35-404-3407-0.
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Gorur Govinda Raju. ielectrics in Electric Fields: Tables, Atoms, and Molecules. CRC Press, 2016. ISBN 9781482231137.
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Hippel A. Dielectric Materials and Applications. Artech House, Boston London. ISBN 1-58053-123--7.
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Chang S, Parinov I., et. al. Advanced Materials. 2014. ISBN 978-3-319-03749-3.
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K. Ch. Kao. Dielectric phenomena in solids: with emphasis on physical concepts of electronic processes. Boston: Elsevier Academic Press,, 2004. ISBN 01-239-6561-6.
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Mentlík, Václav. Dielektrické prvky a systémy. 1. vyd. Praha : BEN - technická literatura, 2006. ISBN 80-7300-189-6.
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Raju, G.G. Dielectrics in Electric Field. CRC Press, 2017. ISBN 9781315350424.
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Saha T.K.. Transformer Ageing - Monitoring and Estimation Techniques. Wiley, 2017. ISBN 9781119239963.
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Stone G. Electrical Insulation for Rotating Machines Design, Evaluation. Wiley, 2014. ISBN 9781118057063.
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Trnka P. Engineering Dielectric Liquid Applications. Basel, Beijing, 2018. ISBN 978-3-03897-402-4.
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V. Raicu, Y. Feldman. Dielectric Relaxation in Biological Systems: Physical Principles, Methods, and Applications.. Oxford University Press, 2014. ISBN 9780199686513.
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