Understanding of XLPE Cable System Commissioning using Partial Discharge Measurements during AC HV Tests

This paper is based on the work done by Altanova Group, India, and describes process procedures used in a Partial Discharge (PD) investigation cable circuit during AC withstand test. The focuses two most common approaches employed, namely, soak tests resonant tests. In latter case, to performing measurements relative benefits of each. De-noising acquired data using T-F map analysis also described, real-world examples are given case studies. These detail EHV tests, one performed where all accessories were monitored simultaneously another each accessory was tested turn before relocating PD monitoring equipment next location. both cases, application maps shows how different sources, such as external corona, can be identified hence segregated.