Examination arrangement

Course content

The course consists of the two topics; condition monitoring and transient calculations in electrical installations. These are both highly relevant topics for operation and analysis of high voltage systems.

Condition monitoring: The topic consists of methods for condition monitoring of cables, transformers, switch gear, surge arresters, overhead lines, and gas-insulated sub-stations. Such methods are important to evaluate the components’ reliability and the need for maintenance and replacement. The topic also gives an overview of relevant ageing and breakdown mechanisms, failure modes and frequencies, measurement principles, condition monitoring and diagnostic techniques, and cost/benefit analysis.

Transient calculations: The topic gives an overview of modeling and calculation methods for transients in electrical circuits. Linear system description with modeling of branches, switches, sources, transmission lines, and nonlinear elements. Several methods including state-space models are utilized aiming at fast and effective solutions. MatLab is used to explore general purpose calculation methodology including robust handling of power electronics. More advanced models of transformers, cables and switch gear for transient simulations are covered.

Learning outcome

Knowledge:

After completing the course, the candidate will have in-depth knowledge about operation, maintenance and analysis of high voltage systems. Specifically on condition monitoring methods, failures modes and ageing mechanisms of high voltage components, and calculations of lightning, switching and temporary overvoltages.

Skills:

After completing the course, the candidate will be able to evaluate problems related to condition monitoring of high voltage components and analysis of transients in a scientific and technical qualified way.

General competence:

After completing the course, the candidate will have increase skills in:

• communicating effectively to peers and non-specialists with reports and presentations.
• Contributing to innovation related to monitoring and computer analysis.

Learning methods and activities

The course is given with a mix of lectures, exercises, projects and flipped classroom presentations. There are two mini-projects in the course related to condition monitoring of a given component, and transient analysis of a given system. The teaching will be in English if necessary.

Further on evaluation

Evaluation based on work in two mini-projects:

50% presentation and report on Condition monitoring of given component.

50% presentation and report on Transient analysis of given system.

Specific conditions

Recommended previous knowledge

Knowledge equivalent to a bachelor's degree in Energy and Environment / Energy Engineering / Electric Power Engineering, in addition to completing the first year within the chosen main profile in the 2-year master's program in Energy and Environment.

Required previous knowledge

The student can remain with a maximum of three courses from the underlying year. Prior knowledge corresponding to the courses indicated under recommended prior knowledge cannot be included in the subjects that are missing.

Course materials

Compendia and lecture notes