Methods for Remaining Life Prediction of Power Cable based on Partial Discharge with Regard to Loading Factor Calculation and Voltage Variation

Abstract

Power cable is equipment in an electrical distribution system that has functions to deliver electrical energy from the source to the load. Estimates of power cable remaining life are important to be done for ensure the reliability of the electricity distribution system. Partial discharge measurement as a best method of high voltage equipment diagnosis can be a reference in estimating the remaining life of power cables. This paper discusses the results of partial discharge testing on XLPE insulation of subsea power cables using several voltage levels and use that result to estimates the remaining life of the power cable with regard to loading factor. based on the test, there is a significant relationship between voltage level and the charge value of partial discharge.