Conventional Transformer


The single-phase conventional overhead transformer is designed with an interlaced core (5-50 kVA) recommended by Electric Power Research Institute (EPRI). Polymer low-voltage bushings are standard at 5-50 kVA.

kVA 5-167
Primary Voltage 2400-19,920 V
Secondary Voltage 120-600 V


  • Envirotemp™ FR3™ fluid
  • Electrical grade mineral oil available upon request
  • Meet or exceeds ANSI and NEMA standards
  • Meets DOE Energy Efficiency Standard 10 CFR Part 431 for distribution transformers
  • EPRI recommended interlaced core-type design (5-75 kVA)
  • Tank coating exceeds ANSI C57.12.31
  • Cover with a minimum dielectric strength of 8 kV
  • Tin-plated high and low-voltage bushing terminals to accommodate aluminum or copper conductors
  • Laser-engraved nameplate
  • Wet process porcelain high-voltage bushings resistant to high-voltage corona
  • Tank grounding provisions
  • Heavy-duty lifting lugs and hanger brackets per ANSI requirements1
  • Visible cover ground on units with cover-mounted bushings
  • Recessed tank bottom that offers protection when sliding over rough surfaces
  • Automatic pressure relief device
  • Polymer low-voltage bushings (5-75 kVA)
  • Arrester mounting and grounding provisions
  • Internal mark indicating the proper oil level
  • Permanently stamped secondary leads to ensure proper identification
  • Corrosion-resistant cover band
  • Quality System ISO 9001 certified
  • Optional MagneX Interrupter

Envirotemp™ and FR3™ are licensed trademarks of Cargill, Incorporated.