Course - Insulating Materials for High Voltage Applications - TET4160
TET4160 - Insulating Materials for High Voltage Applications
Examination arrangement: School exam
Grade: Letter grades
|Evaluation||Weighting||Duration||Grade deviation||Examination aids|
|School exam||100/100||4 hours||D|
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.
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, compulsory calculation and laboratory exercises. The laboratory exercises cover the topics: - Measurement of dielectric loss and detection of partial discharges in airgaps. Electric breakdown strength of airgaps exposed to typical stresses. Digital simulation tools will are used in some of the exercises. The course is given in English.
- Laboratory work with report
Further on evaluation
Permitted examination aids, support material code D: No printed or hand-written support material is allowed. A specific basic calculator is allowed. In addition, calculator Casio fx-991EX is allowed. If there is a re-sit examination, the examination form may change from written to oral.
Recommended previous knowledge
Basic Electric Field calculation, Physics and chemistry.
Digital compendium that will be made avaiable on NTNU's eLMS (Blackboard)
Credits: 7.5 SP
Study level: Second degree level
Term no.: 1
Teaching semester: AUTUMN 2023
Language of instruction: English
- Electrical Power Engineering
- Technological subjects
Examination arrangement: School exam
- Term Status code Evaluation Weighting Examination aids Date Time Examination system Room *
- Autumn ORD School exam 100/100 D 2023-11-28 15:00 INSPERA
Room Building Number of candidates SL310 Sluppenvegen 14 33
- Summer UTS School exam 100/100 D INSPERA
Room Building Number of candidates
- * The location (room) for a written examination is published 3 days before examination date. If more than one room is listed, you will find your room at Studentweb.
For more information regarding registration for examination and examination procedures, see "Innsida - Exams"