Electrical characterization of polymeric DC mini-cables by means of space charge and conduction current measurements

The world’s first commercial High Voltage Direct Current (HVDC) transmission link was built in 1954 between the Swedish mainland and the island of Gotland. At that time, it was proved that HVDC transmission is technically feasible. Since then, HVDC cable systems have been used worldwide in electrical energy transportation. Most HVDC...

Investigation of space charge injection, conduction and trapping mechanisms in polymeric HVDC mini-cables

Polymeric insulation materials have not been used in HVDC cable systems until recently. The main cause of this being the tendency of polymers to deplete accumulated charge very slowly. Research into the dynamics of space charge trapping, injection and conduction in polymers can reveal important information from which new materials can be...