2300 Badger Drive
Waukesha, WI 53188-5951
Phone: 877-CPS-INFO (877-277-4636)
www.cooperpower.com
News Release
Contact:
Connie Smith
Cooper Power Systems
262-691-8227
Connie.Smith@cooperindustries.com
A New Era in Transformer Design: PEAK™ Transformers Provide
Increased Overload Capacity or a Smaller, Lighter Footprint
PEAK™ transformers from Cooper Power Systems—now available in single-, three-phase,
and substation designs—deliver the benefits supported by the
new IEEE Std C57.154™-2012 standard.
WAUKESHA, WI, February 19, 2013 — The new Cooper Power Systems PEAK™ transformers
are uniquely designed to provide additional capability for managing increased loads and temporary
overload capacity without accelerating loss of insulation system life when compared to mineral oilfilled transformer alternatives. The newly expanded line of ground-breaking technology is now
available in 75 °C Average Winding Rise (AWR) and 65/75 °C AWR in single-phase pole- and padmounted, three-phase pad-mounted and substation configurations.
Cooper Power Systems, the industry leader in power delivery, power quality, power reliability and
end-point automation, has two options available for PEAK transformers. Both options utilize an
advanced high-temperature insulation system—comprised of thermally upgraded kraft paper,
soybean oil-based Envirotemp™ FR3™ dielectric fluid, and an optimized core and coil design:
•
For applications where a smaller footprint and a lighter transformer—capable of the same
ratings as a physically larger 65 °C AWR rated unit—are desired, a 75 °C AWR PEAK
transformer is recommended. These units will use less material and fewer gallons of
dielectric fluid resulting in a better value as well as lower related costs of handling and
operating the larger transformers.
•
Alternatively, when additional overload capacity is most important to manage increased loads
or peaks in demand, a 65/75 °C AWR PEAK transformer is recommended. These units are
designed to accommodate heavier base loading for extended periods of time without
accelerating loss of insulation system life. Utilities, commercial and industrial customers are
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now able to load PEAK transformers continuously above base kVA rating to 109 percent for
single-phase or 112 percent for three-phase while maintaining IEEE Std. C57.91™-2011
standard per unit life requirement.
Cooper Power Systems is the first transformer designer/manufacturer to offer 75 °C AWR to new
IEEE standards. The newly published IEEE Std C57.154™-2012 standard, titled “Standard for the
Design, Testing and Application of Liquid-Immersed Distribution, Power and Regulating
Transformers Using High-Temperature Insulation Systems and Operating at Elevated
Temperatures,” reflects new technology, allowing higher performance. The acceptance of this new
standard allows customers to deploy 75 °C AWR PEAK transformers with confidence.
“Moisture and thermal stress is the enemy of transformer insulation system life,” said Tom
Brockley, president, transformer business unit, Power Systems division. “Our PEAK transformer
superior moisture and thermal stress managing capabilities allow for extended insulation system
life. This contributes to better overall system reliability by reducing the frequency of outages due to
transformer failures.”
PEAK transformers are filled with the biodegradable alternative to transformer oil, Envirotemp™
FR3™ dielectric fluid, which creates a barrier against water at the surface of the insulation. This
makes the thermal kraft paper in the coil windings stronger and longer lasting.
For more information on Cooper Power Systems PEAK transformers, please visit,
www.cooperpower.com.
Envirotemp™ and FR3™ are licensed trademarks of Cargill, incorporated.
IEEE Std C57.154™-2012 is a trademark of the Institute of Electrical and Electronic Engineers, Inc. (IEEE) This publication/product is
not endorsed or approved by the IEEE.
Editor’s Note: For additional information, contact Mike Petrasek of Burson-Marsteller at
(412) 394-6611 or michael.petrasek@bm.com.
Cooper Power Systems is part of the electrical business of Eaton. Eaton acquired Cooper
Industries plc in late 2012. Cooper Power Systems provides world-class power delivery apparatus
and solutions for the utility, commercial, and industrial markets. Cooper Power Systems maintains
a complete portfolio of products and services required to transform, protect, connect, and build out
an electric power system backbone. Smart apparatus – voltage regulators, capacitors, reclosers,
switchgear, smart sensors, and controls – integrated with enterprise level software and secure
Cooper Power Systems – Page 3
communications enable customers to increase productivity, optimize asset efficiency, improve
system reliability, and reduce costs. Reliability and grid-point solutions include: Integrated Volt/VAR
Control (IVVC), feeder, and substation automation systems. End-point solutions include: Advanced
Metering Infrastructure (AMI) and Demand Response (DR). Cooper Power Systems is a leading
provider of engineering optimization and modeling tools. For more information, please visit
www.cooperpower.com. For information about Eaton, visit www.eaton.com.
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