Overhead line partial discharges detection

On the one hand, high voltage assets are very expensive and one could not consider a replacement policy only based upon their age. On the other hand, power networks are crucial to our modern societies and we do want them to be extremely reliable. In this context, condition monitoring has been considered as a powerful tool of asset management and his development is of great interest. One of the most interesting condition monitoring techniques is partial discharges (PD) detection and analysis. This technique is well known and developed for a lot of high voltage components. However, there is still very few scientific work or practical applications for overhead lines. This paper presents a brand-new way to detect and measure PD directly on an overhead line bare conductor. At first, the partial…