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Transcript
COOPER POWER Distribution Transformers Reference Data Effective March 2015 Supersedes R210-90-3 December 1999 TD202002EN SERIES When to use a three-phase pad-mounted transformer At issue The connection In an underground primary feeder system, three-phase pad-mounted transformers are an alternative to three-phase substation transformers. Eaton offers its Cooper Power™ series threephase pad-mounted transformers in the following ratings: Recommendation When compared to substation transformers, padmounted transformers offer many benefits. These include: • Reduced land requirements and installation costs • Improved aesthetics • Enhanced safety Rationale Reduced land requirements and installation costs Because the physical profile of a pad-mounted transformer is smaller than that of a substation, land requirements and associated costs of obtaining rights-of-way and permits are reduced. Additionally, because they are tamper-proof and self-contained, pad-mounted transformers can be installed in unsecured areas, saving the additional cost and space of a fence or enclosure. Access for maintenance is also made easier. Improved aesthetics Pad-mounted transformers are smaller than equivalent substations and have uncluttered, unobstrusive exteriors. Enhanced safety Public safety is enhanced through a tamperresistant design that meets or exceeds IEEE Std C57.12.28™-2014 standard security requirements. With underground cable access and fully enclosed connections–particularly in dead-front designs with elbow inserts–pad-mounted transformers offer increased safety for operating personnel. The enclosed design also shields the unit from environmental hazards. Three-phase • kVA range: 45-10,000 kVA • Primary voltage: 2,400-46,000 volts, with or without taps; dual voltages available • Secondary voltage: 208Y/120-14,400 Volts See publications • 210-12 Three-phase Pad-mounted Compartmental Type Transformer • S210-12-1, Three-phase Pad-mounted Compartmental Type Installation and Maintenance Instructions Reference Data TD202002EN When to use a three-phase pad-mounted transformer Effective March 2015 Eaton 1000 Eaton Boulevard Cleveland, OH 44122 United States Eaton.com Eaton’s Cooper Power Systems Division 2300 Badger Drive Waukesha, WI 53188 United States Cooperpower.com © 2015 Eaton All Rights Reserved Printed in USA Publication No. TD202002EN Eaton and Cooper Power are trademarks of Eaton in the U.S. and other countries. You are not permitted to use these trademarks without the prior written consent of Eaton. IEEE Std C57.12.28™-2014 standard is a trademark of the Institute of Electrical and Electronics Engineers, Inc. (IEEE). This publication/product is not endorsed or approved by the IEEE. For Eaton's Cooper Power series distribution transformers product information call 1-877-277-4636 or visit: www.cooperpower.com.