Entry requirements

120 credits in science/engineering. Power Electronics or Power Electronics I. Participation in High Voltage Engineering. Proficiency in English equivalent to the Swedish upper secondary course English 6.

Learning outcomes

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

• account for the construction of constituent parts of a HV cable system,
• analyse and determine the desirable properties of the materials included,
• analyse and assess manufacturing methods for constituent components,
• present and summarize orally how permitting, environmental considerations, economic parameters and operational reliability are carried out in design of a HV cable system,
• explain and analyze how quality is ensured during production and at cable laying as well as applicable standards for testing,
• calculate and analyze the characteristics of a HV cable system during operation, overload and overvoltages in case of a fault and when connected to overhead power grids,
• calculate and evaluate reactive power and methods to handle this in a HV cable system.

Content

A cable system seen from a historical perspective. Oil-paper cables and problems when transitioning to PEX/XLPE insulation. Manufacturing methods of PEX/XLPE cables. Differences between an AC and DC cable systems. IEC and CENELEC standards for cable systems. Economic parameters and reliability in design. Authorization. Issues regarding environmental consequences of installation of cable systems. The electrical insulation system of a cable system. Different conductor types in one cable part. Construction of subsea cable and underground cable. Joint and cable terminations. Different types of configurations when laying cable joints. Losses. Routine testing of PEX/XLPE cables and accessories, testing of outcomes in production, post-installation testing. Characteristics of AC cable systems in a network when connecting to transformer and load. Overloads and overvoltages in a cable system. Reactive power and methods to manage it in a network.

Instruction

Lectures, supervision.

Assessment

Written and oral presentation of projects. Oral opposition of another project.

If there are special reasons, the examiner may make exceptions from the specified examination method and allow an individual student to be examined in another way. Special reasons may be, for example, notification of special pedagogical support from the university's coordinator for students with disabilities.