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1、IEEE Std C57.93-2007 (Revision of IEEE Std C57.93-1995) IEEE Guide for Installation and Maintenance of Liquid-Immersed Power Transformers IEEE 3 Park Avenue New York, NY 10016-5997, USA 31 March 2008 IEEE Power Engineering Society Sponsored by the Transformers Committee C57.93 TM Copyright The Insti
2、tute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 07/30/2008 04:01:24 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright The Institute of Electrical and Electro
3、nics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 07/30/2008 04:01:24 MDTNo reproduction or networking permitted without license from IHS -,-,- IEEE Std C57.93-2007 (Revision of IEEE Std C57.93-1995) IEEE Guide for Installa
4、tion and Maintenance of Liquid-Immersed Power Transformers Sponsor Transformers Committee of the IEEE Power Engineering Society Approved 5 December 2007 IEEE-SA Standards Board Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS E
5、mployees/1111111001, User=Japan, IHS Not for Resale, 07/30/2008 04:01:24 MDTNo reproduction or networking permitted without license from IHS -,-,- Abstract: This guide provides guidance and recommended practices on the installation and maintenance of liquid-immersed power transformers rated 501 kVA
6、and above with secondary voltages of 1000 V and above. This guide covers the entire range of power transformers, including extra high-voltage (EHV) transformers. This guide does not cover special transformers such as furnace transformers, rectifier transformers, etc. Distinctions are made as require
7、d for various MVA ratings, voltage ratings, and types of liquid insulation. Keywords: installation, liquid-immersed transformer, maintenance, oil-filled transformer, oil processing, testing, transformer _ The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5
8、997, USA Copyright 2008 by the Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Published 31 March 2008. Printed in the United States of America. IEEE is a registered trademark in the U.S. Patent and Trademark Office, owned by the Institute of Electrical and Electronics E
9、ngineers, Incorporated. PDF: ISBN 978-0-7381-5384-1 STD95765 Print: ISBN 978-0-7381-5385-8 STDPD95765 No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. Copyright The Institute of Electrica
10、l and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 07/30/2008 04:01:24 MDTNo reproduction or networking permitted without license from IHS -,-,- IEEE Standards documents are developed within the IEEE Societies a
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26、dividual standard for educational classroom use can also be obtained through the Copyright Clearance Center. Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 07/30/2008 04:0
27、1:24 MDTNo reproduction or networking permitted without license from IHS -,-,- Introduction This introduction is not part of IEEE Std C57.93-2007, IEEE Guide for Installation and Maintenance of Liquid- Immersed Power Transformers. Power transformers usually represent one of the most important and mo
28、st costly single items in substations. Furthermore, particularly for large transformers, their failure usually results in lengthy outages or downgrading of service. For these reasons, a high degree of care is required to properly install and maintain them. Because of these considerations, IEEE and o
29、ther standards-developing organizations have published, since at least the early 1920s, various recommendations for testing, installing, and maintaining transformers. This guide consolidates and replaces IEEE Std C57.12.11-1980 and IEEE Std C57.12.12-1980, which cover large transformers, and ASA C57
30、.93-1958, which covers smaller units. The intention of this guide is to assist users and manufacturers in the shipping, handling, inspection, installation, and maintenance of liquid-immersed power transformers and to assure that the units are placed in service in acceptable condition to provide year
31、s of reliable service. This guide also provides information on developing a maintenance and monitoring program. NOTEThe manufacturer may specify more stringent requirements than this guide. For transformer warranty validation and other reasons, the manufacturers guidelines should be followed. This g
32、uide discusses the following two sizes of transformers: 501 kVA to 10 MVA, or with primary windings less than 69 kV 10 MVA and above, or with high-voltage windings of 69 kV and above The working group of this guide recognizes that substantial variations exist among transformer manufacturers on certa
33、in aspects of transformer installation requirements and that these vary with size and voltage. This guide attempts to accommodate these variations and facilitate a full understanding between manufacturer and user. Generally, the user must conform to the manufacturers minimum recommendations in order
34、 to obtain a proper warranty. Notice to users Laws and regulations Users of these documents should consult all applicable laws and regulations. Compliance with the provisions of this standard does not imply compliance to any applicable regulatory requirements. Implementers of the standard are respon
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37、ption by public authorities and private users, the IEEE does not waive any rights in copyright to this document. iv Copyright 2008 IEEE. All rights reserved. Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001
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41、n or the IEEE standards development process, visit the IEEE-SA website at http:/standards.ieee.org. Errata Errata, if any, for this and all other standards can be accessed at the following URL: http:/standards.ieee.org/reading/ieee/updates/errata/index.html. Users are encouraged to check this URL fo
42、r errata periodically. Interpretations Current interpretations can be accessed at the following URL: http:/standards.ieee.org/reading/ieee/interp/ index.html. Patents Attention is called to the possibility that implementation of this guide may require use of subject matter covered by patent rights.
43、By publication of this guide, no position is taken with respect to the existence or validity of any patent rights in connection therewith. The IEEE is not responsible for identifying Essential Patent Claims for which a license may be required, for conducting inquiries into the legal validity or scop
44、e of Patents Claims or determining whether any licensing terms or conditions provided in connection with submission of a Letter of Assurance, if any, or in any licensing agreements are reasonable or non- discriminatory. Users of this guide are expressly advised that determination of the validity of
45、any patent rights, and the risk of infringement of such rights, is entirely their own responsibility. Further information may be obtained from the IEEE Standards Association. Participants At the time this guide was submitted to the IEEE-SA Standards Board for approval, the Installation Guide Working
46、 Group had the following membership: Mike Lau, Chair Peter Balma, Secretary R. Ahuja D. Allan J. Arteaga D. Baranowski W. Bartley W. Bergman E. Betancourt G. Blackburn W. Chiu D. Chu W. Darovny E. Davis D. De La Cruz D. Dohnal M. Ferreira N. Field J. Foldi J. Fyvie R. Ganser A. Garnitschnig E. Garci
47、a D. Goodwin H. Gianakouros E. G. Hager W. Hansen T. Harbaugh W. Henning v Copyright 2008 IEEE. All rights reserved. Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEELicensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 07/30/2
48、008 04:01:24 MDTNo reproduction or networking permitted without license from IHS -,-,- M. Horning M. Jaroszewski J. Kelly D. Kendrick J. Lackey T. Lundquist J. Mathews J. Mclver S. McNelly H. Moore K. Newman R. Nicholas P. Payne-Powell D. Perco M. Perkins A. Peterson P. Pillitteri L. Plaster D. Platts G. Preininger T. Prevost S. Reed M. Rivers S. Schappell E. Schweiger H. Shertukde D. Sharma J. Sim P. Singh B. Sparling T. Spitzer C. Stiegemeier M. Thaden R. Von Gemmingen J. Watson K. Yule P. Zhao The following members of the ba