Answering The Call For Power Telephone: (518) 245-4400 Mon-Thurs 7:00 a.m. - 5:30 p.m. EST

Liquid Cooled Rectifier Transformer Assembly (1MVA)

Espey Mfg. designed and manufactured this power transformer assembly 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 assembly includes medium voltage switchgear, and low voltage fusing, current sensing, and transient voltage protection.

Electrical Specifications

  • Input: 4160V, 60Hz, 3 Phase
  • Output: 12 phase, 150V, 15degree positive phase displacement, 840AMP 3 phase, 208/120V, 42AMP
  • Rating: 1000kVA Total continuous

Mechanical Specifications

  • Weight: 4500lbs
  • Size: 84L x 32D x 72H
  • Insulation System: 200°C
  • Coolant: De-ionized water at 7GPM
  • Shock: MIL-STD-202, method 213B, test A
  • Vibration: MIL-STD-202, method 204D, test A, f<500Hz
  • Enclosure: Sealed per MIL-E-2036 Bulkhead Mounted EMI Shielded/Sealed


  • 1000kVA average power
  • 24 pulse converter application
  • Medium Voltage (4160V, 3 phase, 60Hz Input)
  • Liquid Cooled
  • Sealed Enclosure per MIL-E-2036
  • Weight: 4500lbs
  • EMI Shielded
Click here for the PDF version.