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

Power Transformer

Espey continues to be a primary supplier of distribution transformers for Naval applications. This 3kVA unit is one of a family of transformers including units between 3kVA and 75kVA power throughput. All the transformers in the family were certified through the ABS-NVR standards, specifically Part 3 Chapter 3 Section 4.

Electrical Specifications

  • Input Voltage: 450VAC, 60 Hz
  • Output Voltage: 208/120VAC, 60 Hz
  • Duty Cycle: Continuous
  • Dielectric Strength: 4000VAC, 60Hz Winding to Core and Case
  • Regulation: at 0.8 PF- 3.5%; at 1.0 PF- 3%
  • Exiting Current: 15% Max
  • Peak Inrush Current: 122 Amps Max
  • Other Available Ratings: 9, 15, 22.5, 30 and 75 kVA

Mechanical Specifications

  • Mounting: Bulkhead
  • Weight: 65 lbs (at max)
  • Insulation Class: R (220ºC), w/ 50ºC Ambient and Over-Temp Indicator Lamp
  • Temperature Rise: 120ºC
  • Connections: Primary- Marathon Terminal Block P/N 39TB 03 F; Secondary- Marathon Terminal Block P/N 39 TB 04 F

Features

  • 3kVA power distribution rated, natural convection cooled
  • Drip-proof (IP22) and impact shock rated enclosure per MIL-S-901D
  • Available Delta-Delta or Delta-Wye Configurations

Qualification

  • ABS-NVR
  • MIL-STD-1399/300A, Type I
  • MIL-S-901D, Grade A, Class I, Type A, Unrestricted Orientation
  • MIL-E-15090, Type II, Class 2
  • IEEE C57.12.01-1998
  • IEC 60529, IP22

Click here for the PDF version.