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PEAK three-phase pad-mounted transformer

Eaton's Cooper Power series PEAK three-phase pad-mounted transformer is filled with Envirotemp FR3 dielectric fluid and is uniquely designed to manage increased loads and temporary overload capacity without loss of life expectancy compared to mineral oil-filled alternatives. Offering the ability to operate beyond full rated load from 12% to 22%, the transformer’s smaller, lighter footprint further enhances value.

Envirotran three-phase pad-mounted transformer
Base rating
45-12,000 kVA
Available slash ratings
65/75 °C (12% kVA increase); 55/75 °C (22% kVA increase)
75 °C average winding rise
Lower cost, more compact design

Core features

  • Designed to improve performance in terms of kVA rating, compact dimensions, lighter weight, safety and sustainability
  • Offers increased overload capacity (with 55/75 or 65/75 °C slash rating)
  • Utilizing an advanced high-temperature insulation system approach and an optimized core and coil design, a 75 rise PEAK transformer results in a smaller footprint and a lighter unit capable of the same ratings as a physically larger 65 °C AWR rated unit

Better manage temporary overloads

Eaton's Cooper Power series PEAK three-phase mad-mounted transformers can be loaded beyond base-rated load up to 122% of base kVA, helping utilities to more precisely size transformers based on periods of peak demand — without impacting insulation life.

Increased transformer reliability and lifespan

The capacity to load PEAK transformers continuously at higher temperature and varying loads without causing damage to the transformer enhances overall system reliability while providing a longer equipment lifespan (conforms to IEEE standard C57.154).

Just as much power in smaller design

A 75 °C Average Winding Rise (AWR) PEAK transformer results in a smaller footprint and a lighter unit capable of the same ratings as a physically larger 65 °C AWR rated unit.