Course - Insulating Materials for High Voltage Applications - TET4160
Insulating Materials for High Voltage Applications
About
About the course
Course content
Properties of different insulation systems based on: gas, solids and liquid/paper. Mechanisms of electrical conduction, polarisation, dielectric loss and breakdown. Ageing mechanisms (partial discharges, thermal degradation,water treeing, etc.) and methods for condition assessment including environmental aspects.
Learning outcome
The course aims to give a thorough introduction to properties needed of different insulating materials used for design of High Voltage apparatus. Knowledge: After completing this course the candidate shall: - have in-depth knowledge about the terms regarding determining dimensions of high voltage power apparatus. - be able to give an account of the basic breakdown mechanisms of gasses, oils and solid insulating materials. - be able to give an account of relevant factors determining permittivity and dielectric loss values. - know the structure and characteristic properties of insulation systems based upon different polymers, glass, ceramics, oils and gasses. - be able to give an account of the gradual degradation mechanisms caused by partial discharges, water trees and electrical trees. Skills: After completing this course the candidate have obtained advanced knowledge within the science of High Voltage insulation and specialized material knowledge to be able to: - design insulation systems for simplified high voltage power apparatus. - be able to use digital simulation tools for electric field stress at AC and DC voltages. - to use instruments and equipment in high voltage laboratories. General competence: After completing the course, the candidate has increased: - skills in cooperation and interdisciplinary collaboration - ability to communicate effectively to professionals and non-specialists alike through reports and presentations - ability to contribute to innovation and innovation processes
Learning methods and activities
Lectures and laboratory exercises.
The laboratory exercises cover the topics: -
- Measurement of dielectric loss and detection of partial discharges in cable terminations
- Electric breakdown strength of airgaps exposed to typical stresses.
The course is given in English.
Compulsory assignments
- Laboratory work with report
Further on evaluation
Grade-based evaluation of individual components of assessment is the basis for the final grade (A-F) awarded in the course: a written final examination (70%), and project report (with presentation) (30%). Both the written exam and project must be passed to receive a grade in the course. If you fail one of the parts, this must be re-taken to pass the course.
For the written exam there will be a re-sit examination in August. For the re-sit exam, the examination form may change from written to oral. If you wish to re-take the project, this must be done the next time the course is given.
Recommended previous knowledge
Basic Electric Field calculation, Physics and chemistry.
Course materials
Digital compendium that will be made avaiable on NTNU's eLMS (Blackboard)
Credit reductions
| Course code | Reduction | From |
|---|---|---|
| SIE1050 | 7.5 sp |
Subject areas
- Electrical Power Engineering
- Technological subjects
Contact information
Course coordinator
Lecturers
Department with academic responsibility
Examination
Examination
Ordinary examination - Autumn 2025
School exam
The specified room can be changed and the final location will be ready no later than 3 days before the exam. You can find your room location on Studentweb.