Normas c57.12.20-2005

Solo disponible en BuenasTareas
  • Páginas : 51 (12709 palabras )
  • Descarga(s) : 0
  • Publicado : 25 de mayo de 2011
Leer documento completo
Vista previa del texto
IEEE Standard for Overhead-Type Distribution Transformers, 500 kVA and Smaller: High Voltage, 34 500 V and Below; Low Voltage, 7970/13 800Y V and Below

IEEE Power Engineering Society
Sponsored by the Transformers Committee

IEEE 3 Park Avenue New York, NY 10016-5997, USA 9 December 2005

IEEE Std C57.12.20™-2005
(Revision of IEEE Std C57.12.20-1997)

IEEE Std C57.12.20™-2005(Revision of IEEE Std C57.12.20-1997)

IEEE Standard for Overhead-Type Distribution Transformers, 500 kVA and Smaller: High Voltage, 34 500 V and Below; Low Voltage, 7970/13 800Y V and Below


Transformer Committee of the IEEE Power Engineering Society
Approved 9 June 2005

IEEE-SA Standards Board
Abstract: This standard covers certain electrical, dimensional, and mechanicalcharacteristics and safety features of single- and three-phase, 60 Hz, mineral-oil-immersed, self-cooled, overhead-type distribution transformers 500 kVA and smaller, high voltages 34 500 V and below and low voltages 7970/13 800Y V and below. Keywords: distribution transformer, overhead, mineral oil, transformer
The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY10016-5997, USA Copyright © 2005 by the Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Published 9 December 2005. Printed in the United States of America. IEEE is a registered trademark in the U.S. Patent & Trademark Office, owned by the Institute of Electrical and Electronics Engineers, Incorporated. Print: PDF: ISBN 0-7381-4752-4 ISBN 0-7381-4753-2 SH95354 SS95343

Nopart of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher.

IEEE Standards documents are developed within the IEEE Societies and the Standards Coordinating Committees of the IEEE Standards Association (IEEE-SA) Standards Board. The IEEE develops its standards through a consensus developmentprocess, approved by the American National Standards Institute, which brings together volunteers representing varied viewpoints and interests to achieve the final product. Volunteers are not necessarily members of the Institute and serve without compensation. While the IEEE administers the process and establishes rules to promote fairness in the consensus development process, the IEEE does notindependently evaluate, test, or verify the accuracy of any of the information contained in its standards. Use of an IEEE Standard is wholly voluntary. The IEEE disclaims liability for any personal injury, property or other damage, of any nature whatsoever, whether special, indirect, consequential, or compensatory, directly or indirectly resulting from the publication, use of, or reliance upon this, or anyother IEEE Standard document. The IEEE does not warrant or represent the accuracy or content of the material contained herein, and expressly disclaims any express or implied warranty, including any implied warranty of merchantability or fitness for a specific purpose, or that the use of the material contained herein is free from patent infringement. IEEE Standards documents are supplied “AS IS.”The existence of an IEEE Standard does not imply that there are no other ways to produce, test, measure, purchase, market, or provide other goods and services related to the scope of the IEEE Standard. Furthermore, the viewpoint expressed at the time a standard is approved and issued is subject to change brought about through developments in the state of the art and comments received from users ofthe standard. Every IEEE Standard is subjected to review at least every five years for revision or reaffirmation. When a document is more than five years old and has not been reaffirmed, it is reasonable to conclude that its contents, although still of some value, do not wholly reflect the present state of the art. Users are cautioned to check to determine that they have the latest edition of...