Entry requirements

130 credits in science/engineering including 5 credits at Master's level within one of the main fields of study: Renewable Electricity Production or Electrical Engineering. Power Engineering, Electromagnetism II. Participation in one of the courses Power System Analysis or Analysis of Electric Power Systems, which also can be studied in parallel. Proficiency in English equivalent to the Swedish upper secondary course English 6.

Learning outcomes

The basic aim of the course is to give the student an understanding of how to apply knowledge of basic physical principles in a technical application.

On completion of the course, the student should be able to:

• perform an advanced analysis of the impact of design on transformer performance,
• explain the relationship between the electrical properties of the transformer and its physical design (core, winding and tank) in terms of material selection, shape, etc,
• explain in detail how basic physics and technical considerations affect design, construction, performance and function,
• explain and apply design criteria for optimized design in terms of e. g. losses, availability, strength, magnetic field, acoustic emission and relate these to international standards for manufacturing and testing,
• calculate and analyse stresses such as dielectric, thermal and mechanical and performance such as losses and noise,
• analyse practical applications and investigate alternatives,
• analyse test results from routine and type tests.

Content

The main components of the power transformer, their properties, variants, function and role in today's and future transmission systems. The role of the transformer in the transmission system is further developed during the course. The main components of the transformer (cooling system, insulators, bushings etc) and their operation and maintenance. Detail design such as material selection and design of the core and winding is included in the course where basic knowledge of physics is used in a practical application. The transformer in a life cycle perspective and its environmental impact. The manufacturing process for the active part (core and winding). In both analysis and calculation, numerical simulation programs (such as 3D-Multiphysics) will be actively used. The course is given in close cooperation with the electric power industry through the presence of the electric power industry in the classroom and study visits.

Instruction

Lectures, seminars with student presentations, lessons, study visits to industry and project work.

Assessment

Oral presentation during seminars, and oral and written presentation of project work (2 credits). Written exam (3 credits).

If there are special reasons for doing so, an examiner may make an exception from the method of assessment indicated and allow a student to be assessed by another method. An example of special reasons might be a certificate regarding special pedagogical support from the disability coordinator of the university.