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Liquid Cooled Rectifier Transformer (950kVA)

Espey Mfg. designed and manufactured this set of power transformerss for a prime military contractor. The transformer design employs a proprietary heat exchange configuration which enables the transformer size and weight to be condensed to that specified. The transformer provides isolation and rectifier duty phase displaced low voltage, high current outputs.

Electrical Specifications

  • Input: 440VAC, 60Hz, 3 phase in accordance with MIL-STD-1399/300A
  • Output: 300VDC
  • Ratings: 950kVA total

Tightly coupled secondaries, impedance balanced
facilitate equal current sharing in rectifying sections
of the converter.

Mechanical Specifications

  • Coolant: Liquid (EGW) Cooled @ 3GPM
  • Insulation system: 200oC
  • Total system weight: 3050lbs
  • Shock Withstand: MIL-S-901D
  • Vibration: MIL-STD-167-1 (Shipboard)


  • 950kVA average power
  • 36 pulse converter application
  • Liquid Cooled
  • Modularized approach
  • Weight: 3050lbs total system


  • Shock Withstand: MIL-S-901D
  • Vibration: MIL-STD-167-1 (Shipboard)
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