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What are Important Specifications for a Marine Duty Transformer?

Marine Duty is often left to the manufacturer to define.  HPS provides American Bureau of Shipping (ABS) approved transformers which include:

  • Copper or aluminum windings
  • Dry-type convection-cooled
  • Standard NEMA taps
  • 150ºC, 115ºC or 80ºC temperature rise available
  • 220ºC, 200ºC or 180ºC insulation system available
  • VPI Impregnation for salt environments
  • Fungus resistant
  • Braced for marine applications
  • Enclosures:  NEMA 2 or NEMA 3R (per ABS requirements)
  • Stainless steel hardware (on units over 1000kVA)
  • UV protection for outdoor enclosures
  • UL50 frames, channels, etc.
  • CSA, UL and ABS approval (Lloyd’s Register and DNV approval available upon request)

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