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Corona of HVDC overhead-lines is important in the planning of transmission corridors. Effects that need to be considered include corona losses (CL), audible-noise (AN), radio-interference (RI) and ground level ion currents. Water on conductor surfaces influences these quantities. It was previously shown that certain conductor surfaces lead to considerable reductions in wet weather CL. This publication...
Corona behavior of HVDC overhead lines plays a significant role when dimensioning transmission lines. Rain constitutes an important study case since corona effects (e.g. losses, discharge amplitudes) are considerably affected. In this paper, imaging methods are introduced to investigate the impact of rain on corona behavior. Geometrical properties of rain drops on a stranded conductor were extracted...
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