Primary equipment for maintenance includes generator set, switchgear (CB, CT, VT, etc), transformer, OHTL, cable and other HV equipment. All HV equipments play a critical role in power supply, which require regular routine maintenance, overhaul and inspection. Protection relays calibration, testing and co-ordination or upgrading for high voltage electrical system for oilfield electrical power system are of great significance.
Upgrading Maintenance and Annual Inspection for Power Transmission and Transformation System