Test Setup Design, and Calibration for Tan Delta Measurements on MV Cable Joints

Abstract

As reliable power network is crucial to deliver promised electric power, cable powerline monitoring in medium voltage networks has a great importance for Distribution System Operators (DSOs) all over the world. A considerable rate of failures in cable powerlines is referred to the cable joints. Especially during the summer period, an excessive number of joints are subjected to explosion, causing outages in different points of the power network. To this purpose, in this paper, a simple and cheap test setup has been designed and calibrated to perform one of the key measurements for the cable monitoring, Tan Delta. Finally, the Tan Delta of different joints have been measured using the proposed setup.