Power System Components

An electrical power system is composed by several components that form a complete system; from large generation units (generators, transformers, etc.) to distribution systems that connect the users to the electric power system (overhead lines, cables, insulators, etc.).

The Norwegian electric power system has been developed over a long period of time. Utilities and industry have together tried to solve the problems that occurred when new technology was introduced (the HVDC Skagerrak cable installation is an example where Statnett and Nexans Norway pushed the development in the 70-ties). In this picture SINTEF Energy Research was a catalyst. We developed technical solutions to the concept that has been proven by excellent service performance ever since.

SINTEF Energy Research conducts R&D projects related to electric power AC and DC components. The activity has, however, been highest on high voltage cables, overhead lines and transformers. In the Norwegian network the activity has changed over the years. Establishing the main part of the system took place between 1950 and 1980. In the last years much of the activity has been related to maintenance of the existing network. Several projects have therefore aimed to develop advanced test methods in order to predict remaining life.

Examples here are:
Maintenance of XLPE cables
Maintenance of MIND cables
Acoustic control of cable terminations and joints

Our test equipment is well suited for tests either in the laboratory in Trondheim or in the field. Research is often performed in close cooperation with the Norwegian University of Science and Technology (NTNU), Institute of Electrical Power Technology.

Contact: Hallvard Faremo, SINTEF Energy Research