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Medium-voltage transformers

Medium-voltage ventilated general purpose transformers

Eaton’s medium-voltage single-phase and three-phase ventilated general purpose dry-type transformers are of the two-winding type, self-cooled, and are available in a variety of primary and secondary voltage combinations. The transformers are designed, manufactured and tested in accordance with all of the latest applicable ANSI, NEMA and IEEE standards, and designed for continuous operation at rated kVA.

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Eaton low-voltage dry-type distribution transformers line card General purpose dry-type transformer guide spec
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Voltage class
5kV
Ratings
Single-phase 15-333 kVA Three-phase 15-1500 kVA
Winding conductor
Aluminum or copper

Core features

  • Available in high voltage up to 5 kV class and up to 45 kV BIL
  • Aluminum or copper windings
  • Meet the minimum efficiency standards mandated in DOE 10 CFR Part 431.
  • Transformer core is constructed using high-grade, non-aging, silicon steel to provide high magnetic permeability.
  • Designed for indoor or outdoor applications.
  • 150°C Temperature rise (130°C rise for some kVA ratings), optional 115°C and 80°C rise options available.
  • 220°C Insulation system (200°C for some kVA ratings)

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Transformers Flex Center custom solutions

Learn how our Transformer Flex Center can help you meet unique general-purpose and distribution transformer needs that cannot be met with standard offerings

U.S. Department of Energy’s 2016 transformer efficiency changes

Discover the impact on inrush current for low voltage dry-type transformers
Read the full paper

Important aspects of dry-type distribution transformers

Explore best practices for the installation and inspection of dry-type distribution and power transformers
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Specifications

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