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DMAT

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KET/DMAT

Dielectric materials in el. engineering

Guarantors: Prof. Ing. Pavel Trnka, Ph.D., MBA

KET/DMAT je předmět, ve kterém si prohloubíte znalosti z oblasti dielektrických materiálů a získáte další informace o možnostech jejich diagnostiky.

Last updated: 15.02.2021

Information about course

Course has neither prerequisite nor preclusive nor recommended (for your information) courses...
Brief information	KET/DMAT , Dielectric materials in el. engineering
Teaching	Summer semester , Lecture 2 [Hours/Week] Tutorial 2 [Hours/Week]
Completion	Exam, 5 credits,

Course annotation KET/DMAT -IS/STAG

The course will, based on the material knowledge gained in the previous study, extend the phenomenological knowledge by the detailed characteristics of dielectric materials, the description of the physical processes and accompanying behavior of dielectrics and insulation materials in the electric field, the nature of polarization processes, explaining dielectric conductivity, thermal conductivity, behavior of materials in DC, AC and pulse electric fields. Students will acquire knowledge about the causes of conductivity phenomena of dielectrics, dielectric absorption, dielectric losses, complex permittivity and electrical strength, including theories of the breakdown. This will include a description of phenomena associated with space charge generation, mechanisms of capture and migration of free charge carriers, deformation of the internal electric field, partial discharges, electrical treeing, or interactions of nanocomposites with the basic matrix. The properties of selected dielectrics in different states, principles, and advantages of composite materials and their components will be explained. The properties of dielectric materials will be discussed depending on the temperature, voltage, frequency, time and presence of the influencing factors. In the next part of the course, students are acquainted with individual types of composite materials based on their properties and utilization in the field of engineering. The course deals with the structure and properties of insulating materials and insulation systems for individual machinery. Students will be introduced to problematics of individual thermal classes of insulating materials with respect to their resistance to degradation factors. The acquired knowledge will allow graduates to design the appropriate composition of new electrical insulation structures.