Client:ENEL/One Wind
Status: completeD

One Wind’s St. Lawrence and Fermeuse Wind Farms, located in Newfoundland & Labrador, provide a combined 54MW of green energy capacity to the province’s power grid, providing enough electricity to power about 14,000 homes collectively.

Pennecon Technical Services (PTS) were contracted by ENEL in 2008 to provide start-up and commissioning support. Since the energization, PTS’ has continued to support One Wind with its planned maintenance program on both sites, while responding to any unscheduled power outages, equipment failures, or other asset management support such as equipment assessments and/or repairs. Below is the outlined scope of work performed during startup and commissioning.

scope & highlights:



Protection Relays Commissioning

  • Upload and confirm setting files
  • Secondary injection to confirm protection settings
  • I/O configuration and field-testing devices
  • Development of as-built drawings


Main 25MVA Transformer Commissioning Power Factor testing

  • Transformer Turn ratio
  • Transformer winding resistance
  • Insulation resistance
  • Oil sampling
  • Power Factor testing on bushings / surge arresters

Main 25Kv Vacuum Breaker Commissioning

  • HV Insulation integrity tests
  • Contact resistance
  • Insulation resistance
  • Electrical / Mechanical function testing

UPS / Battery Bank Commissioning

  • Cell voltages, conductance, impedance checks
  • Load testing


Ground Grids Verification Testing

  • Full fall of potential testing

SF6 Breaker Commissioning

  • Secondary injection protection trip units
  • Insulation integrity testing
  • Contact resistance verification

25kV Medium Voltage Cables Testing

  • High Voltage DC Hi Potting
  • Phasing
  • Cable terminations