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High Voltage Equipment & maintenance Services
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Services
Full-service expertise.
Equisales experience includes erecting high voltage switchyards, dead-end structures, control and protection schemes, and installation and commissioning testing. In addition, Equisales maintains a fleet of mobile vacuum dehydrator/oil processing trailers designed to be transported anywhere in the world, with minimum notice. These trailers are equipped with a full set of tools and electrical generators allowing self-sufficiency in remote areas when site power may not be available.
Transformer & Substation Breaker Services
Experience up to and including 500 kV and 550 MVA
  • Assembly (New or Used)
  • Removal/Relocation/Retrofit
  • Testing - Acceptance/Commissioning
  • Repairs - Leaks, Gaskets, Bushings
  • Repair/Replace Protective Devices
  • Oil Dehydration
  • Vacuum/Oil Filling
  • Transformer Dry Out
  • SF6 Gas Reclamation
  • SF6 Gas Filling

Electrical Testing & Services
  • Insulation Power Factor
  • Excitation Current
  • Transformer Turns Ratio (TTR)
  • Winding Resistance
  • CT (Ratio, Polarity, Saturation)
  • Insulation Resistance (Megger)
  • Oil/SF6 Gas Sampling/Analysis
  • AC and DC Hipot Bus/Cable
  • Ground/Grid Resistance
  • Relay and Meter Calibration
  • Capacitance Measurement
  • Controls Troubleshooting
  • Controls Modifications
  • Infrared Inspection