Numerical methods for calculation of electrical stresses in HVDC cables with special application to the Skagerrak cable

This paper deals with numerical methods for calculation of electrical stresses in HVdc cables. The design of the "Skagerrak cable" i.e. the 130 km long dc submarine cable between Norway and Denmark, is described, and various calculations, both under stationary and transient condition of the cable, are given. The numerical methods permit both voltage, current and temperature to be time-dependent. Electrical stress distributions are shown both for service conditions and for recommended tests.