Transformer Field Maintenance and Repair

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Field Maintenance and Repair

We repair transformers, voltage regulators, oil circuit reclosers, and padmounted switches. Solomon Corporation’s certified field technicians are located across the country for quick response time to your urgent repair needs. Highly-trained, and outfitted with the latest, state-of-the-art test and repair tools, our field maintenance and repair crews can troubleshoot, repair, test, and inspect your equipment to ensure that it is quickly in working order.

Our Services:

Transformer Onsite Maintenance

  • High voltage bushing testing
  • High voltage bushing replacement
  • Leak repair
  • Leak checking
  • Re-charge of nitrogen blanket
  • Installation of positive pressure nitrogen system
  • Installation of cooling fans and controls
  • Transformer controls trouble shooting, testing and repairs
  • Transformer and LTC control upgrades

 Services

  • Complete inspection and testing of load tap changing mechanism
  • Remove  oil and open LTC main compartment
  • Clean all carbon from mechanism
  • Clean all contacts and check for wear
  • Check mechanism for proper adjustment and alignment
  • Replace all worn and damaged parts
  • Replace all gaskets on doors of mechanism
  • Check automatic controls and auxiliary equipment
  • Close LTC compartment and fill with non- PCB oil

Hot Oil Processing

  • Hot oil circulation and de-hydration of oil and transformer
  • Removal of oil from transformer and holding in tanker during service
  • Vacuum filling of transformer
  • De-gassing of fluid and transformer
  • Envirotemp (FR3) fluid processing

Field Dressing

  • Installation of radiators
  • Installation of bushings
  • Installation of auxiliary equipment (fans, pumps, arresters, connectors)
  • Vacuum filling of fluid
  • Acceptance testing

Annual and Routine Maintenance Schedules Available

  • Complete transformer testing
  • Complete oil diagnostic services
  • Inspect transformer and all accessories
  • Assessment and recommendations

Oil Test Capabilities

  • Gas in oil analysis (DGA)
  • Moisture in oil
  • Ca
  • Standard oil quality
  • Oxidation Inhibitor
  • Furanic compounds
  • Wear metals
  • Power factor @ 25 and 100 C

Onsite retro-filling Services

  • Retro filling of non-PCB oil
  • Retro filling of Envirotemp (FR3) fluid and maintaining less-flammable classification
  • Retro filling of Silicone fluid

Electrical Testing Capabilities in the Field

  • Doble Power Factor
  • Doble Excitation test
  • Insulation resistance test (Meggar)
  • Winding resistance test
  • SFRA
  • Partial discharge test
  • Turn ratio test