1、 IEEE Standard for Qualification of Class 1E Transformers for Nuclear Power Generating Stations Sponsored by the Transformers Committee IEEE 3 Park Avenue New York, NY 10016-5997 USA IEEE Power and Energy Society IEEE Std 638-2013 (Revision of IEEE Std 638-1992) IEEE Std 638-2013 (Revision of IEEE S
2、td 638-1992) IEEE Standard for Qualification of Class 1E Transformers for Nuclear Power Generating Stations Sponsor Transformers Committee of the IEEE Power and Energy Society Approved 11 December 2013 IEEE-SA Standards Board Abstract: Procedures for demonstrating the adequacy of new Class 1E transf
3、ormers, located in a mild environment of a nuclear power generating station, to perform their required safety functions under postulated service conditions are presented. Single- and three-phase transformers rated 601 V to 15 000 V for the highest voltage winding and up to 2500 kVA (self-cooled rati
4、ng) are covered. Because of the conservative approach used in the development of this new standard for new transformers, the end-point criteria cannot be used for in-service transformers. Keywords: Class 1E transformers, design qualification, IEEE 638, seismic qualification The Institute of Electric
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34、 information may be obtained from the IEEE Standards Association. Copyright 2014 IEEE. All rights reserved. vi Participants At the time this IEEE standard was completed, the Qualification of Class 1E Transformers Working Group had the following membership: Craig Swinderman, Chair Kent Brown P. Ghosh
35、 L. Johannson W. Johnson Thomas Lundquist Richard Marek L. Stensland Robert Thompson K. Yule The following members of the individual balloting committee voted on this standard. Balloters may have voted for approval, disapproval, or abstention. William Ackerman Sattish Aggarwal Ali Al Awazi Robert Ba
36、llard Barry Beaster Robert Beavers Wallace Binder Thomas Blackburn William Bloethe Thomas Brewington Daniel Brosnan Kent Brown Nissen Burstein Paul Cardinal Suresh Channarasappa Garry Chapman Weijen Chen Jerry Corkran Willaim Darovny Ray Davis John Disosway Wells Fargo David Gilmer Jalal Gohari Rand
37、all Groves Ajit Gwal Hamidreza Heidarisafa Gary Heuston Werner Hoelzl Gary Hoffman Philip Hopkinson David Horvath Paul Johnson C. Kalra Yuri Khersonsky Joseph L. Koepfinger Thomas Koshy Jim Kulchisky Saumen Kundu John Lackey Chung-Yiu Lam Michael Lauxman Thomas Lundquist Greg Luri Richard Marek Mich
38、ael May Frank Mayle Joseph Melanson John Merando T. David Mills K. R. M. Nair Michael Newman Raymond Nicholas Mirko Palazzo Bansi Patel Dhiru Patel Jan Pirrong Alvaro Portillo Michael Roberts John Rossetti Bartien Sayogo Glen Schinzel Ewald Schweiger Stephen Shull Gil Shultz James Smith Robert Thomp
39、son John Vergis Jane Verner David Wallach Michael Waterman Kenneth White Roger Wicks Copyright 2014 IEEE. All rights reserved. vii When the IEEE-SA Standards Board approved this standard on 11 December 2013, it had the following membership: John Kulick, Chair David J. Law, Vice Chair Richard H. Hule
40、tt, Past Chair Konstantinos Karachalios, Secretary Masayuki Ariyoshi Peter Balma Farooq Bari Ted Burse Stephen Dukes Jean-Phillippe Faure Alexander Gelman Mark Halpin Gary Hoffman Paul Houz Jim Hughes Michael Janezic Joseph L. Koepfinger* Oleg Logvinov Ron Peterson Gary Robinson Jon Walter Rosdahl A
41、drian Stephens Peter Sutherland Yatin Trivedi Phil Winston Yu Yuan *Member Emeritus Also included are the following nonvoting IEEE-SA Standards Board liaisons: Richard DeBlasio, DOE Representative Michael Janezic, NIST Representative Michelle Turner IEEE Standards Program Manager, Document Developme
42、nt Erin Spiewak IEEE Standards Program Manager, Technical Program Development Copyright 2014 IEEE. All rights reserved. viii Introduction This introduction is not part of IEEE Std 638-2013, IEEE Standard for Qualification of Class 1E Transformers for Nuclear Power Generating Stations. This latest re
43、vision to the IEEE Std 638 is a revision of IEEE Std 638-1992 and is the result of a review of IEEE Std 638-1992 and present practices in Class 1E transformer qualification. This revision incorporates current practices and lessons learned from the implementation of previous versions of this standard
44、 by the industry. IEEE Std 638 was developed to provide specific methods and test procedures for the qualification of Class 1E transformers in accordance with IEEE Std 323, which provides guidance for demonstrating and documenting the qualification of electrical equipment used in all Class 1E and in
45、terface systems. This latest revision has clarified or updated a number of items, including removing references to old IEEE standards that are no longer in use today, incorporating the information from the 7 April 1999 Correction to IEEE 638-1992 into the body of the document, and updating certain a
46、spects of the document to be more in line with the latest versions of the related transformer standards referenced in this document. Additionally, the modern technique of frequency response analysis (FRA) was incorporated into the qualification tests to be performed as part of this standard. Perform
47、ing the FRA tests before and after the short-circuit test and seismic test will provide better insight into the actual condition of the transformer after completion of these two significant tests, further improving the understanding of the tested transformer designs capability to withstand such even
48、ts in operation. Adherence to this document alone may not suffice for assuring public health and safety because it is the integrated performance of the structures, fluid systems, instrumentation systems, and electrical systems of the nuclear power generating station that establish safe operating con
49、ditions. This standard was prepared by Working Group P638 of the Power Transformers Subcommittee of the Transformers Committee of the IEEE Power and Energy Society. Copyright 2014 IEEE. All rights reserved. ix Contents 1. Overview 1 1.1 Scope . 1 1.2 Purpose 1 2. Normative references 2 3. Definitions 3 4. Transformer specifications . 3 4.1 Minimum information . 3 4.2 Service conditions 3 4.3 Equipment performance requirements . 3 4.4 Seismic requirements . 3 4.5 Electrical, mechanical, and structural interfaces 4 4.6 Industry codes and standards . 4 4.7 Impedance 4 4.8
