Characterization of partial discharges behavior in XLPE distribution cable joints

This paper discusses research conducted to characterize medium voltage power cables PD activity which will be used to develop an on-line monitoring system. Data of the PD characteristics that take place in different models of joints performed on 20 kV XLPE cables are presented. Furthermore, a measurement system that enables the on-line partial-discharge detection and location based on Rogowski coils is discussed and designed.