Field Services

MARS Transformers

The Transformer Specialists

We buy, sell, repair, test, service & maintain power transformers and other high voltage equipment.

MARS Transformers provides high voltage solutions, including - but not limited to:

MARS Transformers operates with a fleet of mobile vacuum dehydrator/oil processing trailers built for rapid deployment and seamless transport throughout the world.

Our state of the art mobile trailers are fully equipped with the latest safety equipment and tools. In addition, our powerful electric generators allow seamless operations in remote areas where power may not be available.

Transformers & Substation Breaker Services


Up to 500 kV
  • Repairs (Bushings, Leaks, Gaskets)
  • Testing (Acceptance/Commissioning)
  • Repair/Replace Protective Devices
  • Assembly
  • Retrofit/Removal/Relocation
  • Vacuum/Oil Filling
  • Transformer Dry Out
  • Oil Degassing/Dehydration
  • SF6 Gas Reclamation
  • SF6 Gas Filling

Electrical Testing & Services

  • Transformer Turns Ratio
  • AC & DC Hipot Bus/Cable
  • Relay and Meter Calibration
  • Controls Modifications
  • Controls Troubleshooting
  • Capacitance Measurement
  • Power Line Carrier Testing
  • Insulation Power Factor
  • Excitation Current
  • Infrared Inspection/Analysis
  • Oil/SF6 Gas Sampling/Analysis
  • Ground/Grid Resistance
  • Winding Resistance
  • Breaker Testing – HV & MV
  • CT (Saturation, Ratio, Polarity)
  • Insulation Resistance
  • Project Management
  • Construction Management
  • Design Engineering (Electrical / Civil)
  • Rebuild/Modifications
  • Training
  • Short Circuit Analysis
  • New and Used Equipment
  • Relay Coordination Studies
  • Commissioning
  • Inspection/Maintenance

Substation EPC & Maintenance

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