PEAK substation transformer

75 °C average winding rise

Lower cost, more compact design

AWR slash ratings

65/75 °C (12% kVA increase); 55/75 °C (22% kVA increase)

Base rating

300–12,500 kVA

Cargill's FR3 dielectric fluid provides superior transformer performance, safety and environmental friendliness.

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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 substation 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.

Increase 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.

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.

Save space and reduce equipment coordination

Close-couple medium voltage liquid-filled transformers with low and medium voltage assemblies in a streamlined unit substation design.

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Specifications

Ratings

Base kVA at 75 AWR	300 kVA to 12,000 kVA
kVA increase at 65/75 AWR	+12% (max rating up to 13,440 kVA)
kVA increase at 55/75 AWR	+22% (max rating up to 14,640 kVA)
Primary voltage	2400 V to 46,000 V
Secondary voltage	120 V to 24,940 V
Basic Impulse Level (BIL)	30kV to 250kV
Additional forced-air ratings	+15%, +25%, +33% to base kVA

Standards

ANSI/IEEE	C57.154, C57.12.00 and C57.12.36
CSA	C88-M90
NEMA (sound level)	NEMA TR-1
Third-party approval/recognition	FM Global (Indoor & Outdoor), UL/cUL – available for most ratings

Enclosure

Layout	Cover or sidewall terminals
Air terminal chambers	Three-point latching and padlock system with recessed penta-head bolts
Close-coupling	Standard flanges and throats
Specialty coordination	Custom gear connections
Enclosure integrity	Meets or exceeds ANSI/IEEE C57.12.28 and C57.12.29 (if stainless construction)
Material	Mild or stainless steel (304L)
Enclosure environment	Indoor and outdoor

Key features

Distribution/small power transformer	Substation style transformers
Install location	Indoor and outdoor
Power direction	Step-down and step-up
Specialty designs	Motor loads, harmonics, rectifier duty, K-factor and more

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Phone

877-277-4636 or 877-ETN-CARE

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PEAK substation transformer

The smart choice

Core features

Better manage temporary overloads

Increase transformer reliability and lifespan

Just as much power in smaller design