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 New Cooper Power Systems Transformer Design Optimizes Overload Capacity and Reliability in a Smaller Footprint Cooper Power Systems introduces PEAK™ advanced transformer technology for reliable electric power voltage transformation with overload capacity to at least 112%. . WAUKESHA, WI, August 21, 2012—PEAK™ transformers from Cooper Power Systems are uniquely designed to manage increased loads and temporary overload capacity with a four time greater life expectancy when compared to mineral oil-filled transformer alternatives. Utilities are able to operate PEAK transformers beyond full rated load to at least 112% to more precisely size transformers based on unpredictable periods of peak demand. Utilizing an advanced high-temperature insulation system—comprised of thermally upgraded kraft paper, an optimized core and coil design, and Envirotemp™ FR3™ dielectric fluid—a 75-degree Average Winding Rise (AWR) PEAK transformer results in a smaller footprint and lighter unit capable of the same ratings as a physically larger 65 AWR rated unit. PEAK transformers are filled with the biodegradable alternative to transformer oil, Envirotemp™ FR3™ dielectric fluid, a critical enabling technology which extends transformer life and raises fire ignition resistance. In addition, this soybean oil-based fluid creates a barrier against water at the surface of the insulation making the thermal kraft paper in the coil windings stronger and longer lasting. All of these attributes combine for a lower total cost of ownership verses comparable fluid-filled transformers. “New technology has always driven changes in transformer design standards. In 1956, Cooper Power Systems was the first to design and sell the 65 AWR transformer. It wasn’t until 1964 that 65 AWR became the standard,” said Mark Thurman, president, Cooper Power Systems, a division of Cooper Industries plc (NYSE: CBE). “Today, our PEAK transformer is the next step in that evolution, and is driving the adoption of new standards. The proposed IEEE Std C57.154™-2012, covering the design, testing, and applications of transformers operating at elevated temperatures -MORE- Cooper Power Systems – Page 2 such as the PEAK transformer, is in its final approval process. It is expected to be released in the autumn of 2012.” The capacity to overload PEAK transformers contributes to system reliability during peak periods, as they can be continuously operated at higher temperature and higher load without reducing the life of the transformer. In addition, when compared to traditional transformer operation at the same kVA rating, the PEAK transformer will be smaller and lighter. 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. PEAK transformers are available in 75 AWR (Average Winding Rise), 55/75 AWR, and 65/75 AWR in both 5-167 kVA single phase pole-mount transformers and 5-167 kVA single phase pad-mount transformers in either ANSI 1 or ANSI 2 configurations. For more information on PEAK transformers or any of the great products offered by Cooper Power Systems visit, www.cooperpower.com. Editor’s Note: For additional information, contact Mike Petrasek of Burson-Marsteller at (412) 394-6611 or michael.petrasek@bm.com. About Cooper Power Systems Cooper Power Systems, a subsidiary of Cooper Industries plc (NYSE: CBE), and a global manufacturer and provider of world-class power delivery apparatus and solutions for the utility, commercial, and industrial markets. The company 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 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). The company is a leading provider of engineering optimization and modeling tools. For more information, please visit www.cooperpower.com. About Cooper Industries Cooper Industries plc (NYSE: CBE) is a global electrical products manufacturer with 2011 revenues of $5.4 billion. Founded in 1833 Cooper's sustained success is attributable to a constant focus on innovation and evolving business practices, while maintaining the highest ethical standards and meeting customer needs. The Company has seven operating divisions with leading market positions and world-class products and brands, including Bussmann electrical and electronic fuses; Crouse-Hinds and CEAG explosion-proof electrical equipment; Halo and Metalux lighting fixtures; and Kyle and McGraw-Edison power systems products. With this broad range of products, Cooper is uniquely positioned for several long-term growth trends including the global infrastructure build-out, the need to improve the reliability and productivity of Cooper Power Systems – Page 3 the electric grid, the demand for higher energy-efficient products and the need for improved electrical safety. In 2011 sixty-two percent of total sales were to customers in the industrial and utility end-markets and forty percent of total sales were to customers outside the United States. Cooper has manufacturing facilities in 23 countries as of 2011. For more information, visit the website at www.cooperindustries.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. ###