MANAGE OLPD Testing and Cable Mapping of 33 kV XLPE Cables in a Light Rail System 10 kV Ex/ATEX Motors Transport HFCT/TEV Sensors HVPD LongshotTM Solution Project The transportation customer requested HVPD carried out On-line Partial Discharge (OLPD) testing on 33 kV cable joints. The testing was further to a number of recent faults within the customer’s network, which led to disruption of the power supply to the light rail system. This was a newly installed cable system that had been in service for just over 12 months before the faults started to occur. On-line PD cable mapping using the HVPD LongshotTM test unit and Portable Transponder technology was used to carry out an on-line condition assessment of complete 33 kV cable network. Investigations started with calibration testi

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