SD_Padmount_2006 6/29/06 2:35 PM Page 1 Pad-Mount Small Power Transformers 75 kVA through 20,000 kVA 5 kV through 46 kV primary voltage 120V through 25 kV secondary voltage SD_Padmount_2006 6/29/06 2:35 PM Page 2 Pad-Mounted Transformers Schneider Electric is a recognized market leader, offering a full range of distinctively Square D®-designed transformer products such as the pad-mounted transformer. Like all of COMPACT AND TAMPERRESISTANT our transformers, it is manufactured in ISOregistered facilities that use the industry's leading manufacturing technology, ensuring products of the highest quality and performance. At Schneider Electric, we are committed to excellence. Our pad-mounted transformers are built and tested to stringent Square D brand specifications, and meet or exceed applicable ANSI/IEEE, CSA and NEMA standards. These transformers may be UL, cUL or FM labeled upon request. Medium-Voltage, Liquid-Filled Pad-mounted, liquid-filled transformers provide medium-voltage, world-class power distribution. Pad-mounted transformers use a choice of either mineral oil or less-flammable seed-oil based fluid. For more information about pad-mounted transformers or other transformers, please visit www.us.SquareD.com or call 1-888-SquareD. SD_Padmount_2006 6/29/06 2:35 PM Page 3 Flexibility and Strength Commercial Applications Three-phase, pad-mounted transformers provide compact, tamper-resistant protection for underground power distribution systems. Offering flexibility, excellent mechanical strength and dependability, these transformers are ideal for commercial applications in public access areas where safety is a concern. Pad-mounted transformers are ideally suited for apartment buildings, schools, hospitals, shopping centers, commercial buildings and industrial sites. These transformers are completely factoryassembled and shipped as one piece. Standard liquid-filled sizes range from 75 to 5,000 kVA with primary ratings from 2,400V to 46,000V. Space-Saving, Protective Design Meeting modern design requirements for flexibility, pad-mounted transformers use a rectangular core and coil design. Designed to save space and energy, they provide high efficiency with low operating costs. Because the bolts, hinges, screws and fasteners are not accessible in these self-contained units, their tamper-resistant construction prevents entry by unauthorized personnel. This construction also eliminates the need for protective fencing or vaults, allowing for visually pleasing installation in locations that are accessible to the general public. Environmental Information The sealed-tank construction of pad-mounted transformers ensures that the gas-plus-oil volume remains constant within industry standards. Certified PCB-free, the transformer insulating fluid meets or exceeds requirements of appropriate standards. Mineral oil is primarily used in outdoor applications. When flammability is a concern, such as with indoor applications, or in areas of heightened environmental sensitivity where any insulating fluid spill could require expensive cleanup procedures, lessflammable seed-oil based fluid, a fully biodegradable, environmentally friendly dielectric fluid, is the fluid of choice. SD_Padmount_2006 6/29/06 2:35 PM Page 4 Pad-Mounted Transformer Ratings 75–20,000 kVA 2.5 to 46 kV primary 120°C insulation temperature limit Temperature rise: 65° C ISO 9001 registered Optional UL and cUL certification Special Design Options Special sound requirements Special altitude requirements Retrofit designs Higher efficiency requirements Special ambient conditions 55/65° C rise Applicable Standards ©2006 Schneider Electric. All rights reserved. jc IEEE C57.12.00™ Standard general requirements for liquid-immersed distribution, power and regulating transformers (ANSI). IEEE C57.12.34™ Requirements for pad-mounted, compartmental-type, self-cooled, three-phase distribution transformers; 2,500 kVA and smaller: high voltage, 34,500 GrdY/19,920 volts and below; low-voltage, 480 volts and below. ANSI C57.12.28 Standard for pad-mounted equipment — enclosure integrity. IEEE C57.12.70™ Standard for terminal markings and connections for distribution and power transformers. IEEE C57.12.80™ Standard terminology for power and distribution transformers. IEEE C57.12.90™ Standard test code for liquid-immersed distribution power, and regulating transformers and guide for short-circuit testing of distribution and power transformers (ANSI). IEEE C57.13™ Requirements for instrument transformers. ANSI/IEEE 386 Separable insulated connector systems for power distribution systems above 600V. ASTM D877 Test method for dielectric breakdown voltage of insulating liquids using disk electrodes. NEMA AB1 Molded case circuit breakers. NEMA TR1 Transformers, regulators and reactors. CAN/CSA-C88-M90 Electrical power systems and equipment. 1-888-SQUARED www.us.SquareD.com Schneider Electric – North American Operating Division 1415 S. Roselle Road Palatine, IL 60067 Tel: 847-397-2600 Fax: 847-925-7500 Document Number 7230BR0401R6/06 6/06