Course detail

Electroinsulation systems

FEKT-LESYAcad. year: 2011/2012

Electroinsulation system (EIS) in view of composite systems. Approach to physical-mathematical description of composite systems properties. Dielectric composite systems. Materials basis for EIS, insulating, conducting, magnetic, composite and auxiliary materials. EIS in electric machines, devices and apparatuses. Selection of EIS components. Regulation of electric fields course. Internal and surface discharges. Thermal properties of EIS. Thermal conductivity. Thermal stability in service. Aging of EIS in thermal and electric fields.

Language of instruction

Czech

Number of ECTS credits

5

Mode of study

Not applicable.

Guarantor

Ing. Helena Polsterová, CSc.

Department

Department of Electrical and Electronic Technology (UETE)

Learning outcomes of the course unit

The student gains improved and detailed knowledge of electroinsulation systems in constructions of electric machines, devices and apparatus. Knowledge of suitable materials, their assembling, of environmental factors enable to design EIS with high operation reliability and designed life time, even in presence of unfavorable working environment.

Prerequisites

The subject knowledge on the Bachelor´s degree level is requested.

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Teaching methods depend on the type of course unit as specified in the article 7 of BUT Rules for Studies and Examinations.

Assesment methods and criteria linked to learning outcomes

Test.

Course curriculum

Electroinsulation system (EIS) in view of composite system. Dielectric composite systems.
Approach to physical-mathematical description of composite systems properties.
Material basis of EIS -I. Insulating a composite materials.
Material basis of EIS -II. Conducting, magnetic and auxiliary materials.
Selection of EIS components. Design of EIS dimension.
Technological aspects in EIS assembling.
Electroinsulation systems in electric machines.
Electroinsulation systems in electric devices and apparatus.
Electric field in EIS. Regulation of the field.
Internal discharges in EIS. Tracking currents and surface discharges.
Thermal properties of EIS.
Thermal conductivity. Analysis of thermal breakdown.
Thermal and electric aging of EIS. Laws of aging. Multistress in EIS. Reliability a life time of EIS.

Work placements

Not applicable.

Aims

The aim of the course is to acquaint students with electroinsulation systems (EIS) in electric machines, devices and apparatus, with selection of suitable materials for assembling of EIS and with factors influencing reliability and life time of EIS, even under unfavorable conditions.

Specification of controlled education, way of implementation and compensation for absences

Presence 70 %.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Not applicable.

Recommended reading

Not applicable.

Classification of course in study plans

  • Programme EEKR-ML Master's

    branch ML-EVM , 2. year of study, winter semester, optional specialized

  • Programme EEKR-CZV lifelong learning

    branch ET-CZV , 1. year of study, winter semester, optional specialized

Type of course unit

 

Lecture

26 hours, optionally

Teacher / Lecturer

Ing. Helena Polsterová, CSc.

Syllabus

Electroinsulation system (EIS) in view of composite system. Dielectric composite systems.
Approach to physical-mathematical description of composite systems properties.
Material basis of EIS -I. Insulating a composite materials.
Material basis of EIS -II. Conducting, magnetic and auxiliary materials.
Selection of EIS components. Design of EIS dimension.
Technological aspects in EIS assembling.
Electroinsulation systems in electric machines.
Electroinsulation systems in electric devices and apparatus.
Electric field in EIS. Regulation of the field.
Internal discharges in EIS. Tracking currents and surface discharges.
Thermal properties of EIS.
Thermal conductivity. Analysis of thermal breakdown.
Thermal and electric aging of EIS. Laws of aging. Multistress in EIS. Reliability a life time of EIS.

Fundamentals seminar

12 hours, compulsory

Teacher / Lecturer

Ing. Helena Polsterová, CSc.

Syllabus

Solving problems in:
Composite systems, composites, mixture formulae.
Layer composite materials and systems.
Dielectric stress.
Inhomogeneous electric field.
Discharges in electric insulation.
Laws of aging.
Properties of magnetic circuits.

Exercise in computer lab

8 hours, compulsory

Teacher / Lecturer

Ing. Helena Polsterová, CSc.

Laboratory exercise

6 hours, compulsory

Teacher / Lecturer

Ing. Helena Polsterová, CSc.

Syllabus

Electric strength of insulators.
Arc resistance. Tracking resistance.
Losses of energy in electric and magnetic circuits.