Ion current studies using a small corona cage

To increase the transmittable electrical power without building more transmission lines, a conversion from an AC circuit into a DC circuit seems reasonable. Within the resulting hybrid transmission line system, coupling phenomena have to be considered. This paper concentrates on the measurements concerning the coupling effect induced by the HVDC system, influencing the HVAC systems: the ohmic coupling. In order to investigate this coupling phenomenon under laboratory conditions, a small scale measurement setup is designed to observe the magnitude and the dependencies of the underlying effects. In this paper, the small scale test setup is presented and evaluated concerning its capability. Different conductors are tested and the influence of wind on the ohmic coupling is analyzed.