PD Monitored AC Voltage Acceptance on 500kV Power Cable Line

AC voltage-endurance test with partial discharge detection on 500kV cable which is 6.7km long


Test time: 2014


Test voltage: 493kV


Cable length: 6.7km


Test conclusion: Pass


Voltage-endurancetest on cables and distributed online partial discharge detection shall be conducted at the same time. Sensors and acquisition units shall be installed in the joints and terminals of 13 groups of cables to send back the signals to test control room in real time through the optical fiber and simultaneouslymonitor the cables to check whether there is partial discharges.



 


Commissioning Voltage-endurance Test with Distributed Partial Discharge Detection on 500kV Cable with the Highest Voltage Class in the World