ET8104 - Transformer Design


Examination arrangement

Examination arrangement: Oral examination
Grade: Passed/Failed

Evaluation form Weighting Duration Examination aids Grade deviation
Oral examination 100/100 D

Course content

The course is an in depth study of selected topics about power transformers. In more detail, the content of the course is:
- Basic transformer theory. Equivalent circuit. Dimensional analysis.
- Transformer construction and fabrication. This includes transformer core and windings. Use and design of different type of cores and windings.
- Materials - use and properties(core, insluation, cooling, supporting parts). Historical development.
- Reactances, forces
- Surge phenomena (short circuit, impulse voltages, inrush phenomena)
- Cooling - thermal analysis
- Testing
- Operation

Learning outcome

After completing the course, the student shall:
- understand transformer design.
- understand principles for operation of transformers.
- be able to develop futher tailor made transformer models of e.g. core losses.
- have knowledge about materials used in core, windings, insulation and cooling.
- understand principles for transformer testing.
- understand the relationship between requirements and design implementation.
- understand factors driving modern day development and optimization, based on knowledge about the historical development.
After completing the course, the student shall be able to:
- develop tools for design calculation and parameter calculation for transformers.
- develop tailored models for analysis of surge phenomena.
- specify, test and operate power transformers.

Learning methods and activities

The teaching is based on a colloquium approach, where each topic is briefly presented before a more detailed discussion takes place. All participants must prepare before the weekly colloquium.
The course will be given in English if necessary.
The course is given every second year, next time spring 2021.

Course materials

[1] Martin J. Heathcote, “J&P Transformer Book”, Newnes, XIII ed., 2007, 967 pp. Selected chapters: 1, 2, 3, 4, 5 (pp. 1-383).
[2] S. V. Kulkarni, S. A. Khaparde, “Transformer Engineering Design and Practice”, Marcel Dekker, 2004, 470 pp. Selected chapters: 1, 2, 3, 4, 5 (pp. 1-230).

More on the course



Version: 1
Credits:  7.5 SP
Study level: Doctoral degree level


Term no.: 1
Teaching semester:  AUTUMN 2020

No.of lecture hours: 2
Lab hours: 2
No.of specialization hours: 6

Language of instruction: English

Location: Trondheim

Subject area(s)
  • Electrical Power Engineering
Contact information
Course coordinator: Lecturer(s):

Department with academic responsibility
Department of Electric Power Engineering



Examination arrangement: Oral examination

Term Status code Evaluation form Weighting Examination aids Date Time Digital exam Room *
Autumn ORD Oral examination 100/100 D
Room Building Number of candidates
Spring ORD Oral examination 100/100 D
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"

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