Partial Discharge Investigation on Power Cable Termination Using PD Acoustic Detection

This paper presents the comparison of partial discharge (PD) interpretation on three different standard test objects and defected power cable terminations among an PD acoustic sensor and conventional IEC60270 capacitive PD detection system. The experiments are conducted as off-line testing which is sourced by isolated high voltage step up transformer in laboratory based on safety standard. The results illustrate that the PD acoustic sensor applies cloud analyzer in order to identify PD types with different sensitivities from conventional PD detection system. In addition, it also can determine PD location on the test objects.