ANSI IEEE C37.110 CORR 1-2010 Guide for the Application of Current Transformers Used for Protective Relaying Purposes Corrigendum 1 Corrections to Equation 18 and Equation 19.pdf

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1、 IEEE Std 90003-2008 IEEE Std 90003-2008 IEEE Guide for the Application of Current Transformers Used for Protective Relaying Purposes Corrigendum 1: Corrections to Equation 18 and Equation 19 Sponsored by the Power System Relaying Committee IEEE 3 Park Avenue New York, NY 10016-5997 USA 27 May 2011

2、IEEE Power +1 978 750 8400. Permission to photocopy portions of any individual standard for educational classroom use can also be obtained through the Copyright Clearance Center. iv Copyright 2011 IEEE. All rights reserved. Introduction This introduction is not part of IEEE Std C37.110-2007/Cor 1-20

3、10, IEEE Guide for the Application of Current Transformers Used for Protective Relaying PurposesCorrigendum 1: Corrections to Equation 18 and Equation 19. This guide was prepared by Working Group I-15 on Application of Current Transformers for Relaying of the Relay Practices Subcommittee of the IEEE

4、 Power System Relaying Committee. The guide is intended to assist relay engineers in understanding the operation of current transformers (CTs) and their selection and application to specify relay protection schemes. The guide was revised to include more comprehensive examples to aid the relay engine

5、er in the selection and application of CTs. This corrigendum corrects the errors in Equation (18) and Equation (19). 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 compli

6、ance to any applicable regulatory requirements. Implementers of the standard are responsible for observing or referring to the applicable regulatory requirements. IEEE does not, by the publication of its standards, intend to urge action that is not in compliance with applicable laws, and these docum

7、ents may not be construed as doing so. Copyrights This document is copyrighted by the IEEE. It is made available for a wide variety of both public and private uses. These include both use, by reference, in laws and regulations, and use in private self-regulation, standardization, and the promotion o

8、f engineering practices and methods. By making this document available for use and adoption by public authorities and private users, the IEEE does not waive any rights in copyright to this document. Updating of IEEE documents Users of IEEE standards should be aware that these documents may be supers

9、eded at any time by the issuance of new editions or may be amended from time to time through the issuance of amendments, corrigenda, or errata. An official IEEE document at any point in time consists of the current edition of the document together with any amendments, corrigenda, or errata then in e

10、ffect. In order to determine whether a given document is the current edition and whether it has been amended through the issuance of amendments, corrigenda, or errata, visit the IEEE Standards Association web site at http:/ieeexplore.ieee.org/xpl/standards.jsp, or contact the IEEE at the address lis

11、ted previously. For more information about the IEEE Standards Association or the IEEE standards development process, visit the IEEE-SA web site 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/

12、ieee/updates/errata/index.html. Users are encouraged to check this URL for 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 o

13、f this corrigendum may require use of subject matter covered by patent rights. By publication of this corrigendum, 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 whic

14、h a license may be required, for conducting inquiries into the legal validity or scope 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-discriminato

15、ry. Users of this corrigendum are expressly advised that determination of the validity of 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 corri

16、gendum was submitted to the IEEE-SA Standards Board for approval, the Working Group for the Application of Current Transformers Used for Protective Relaying Purposes had the following membership: George P. Moskos, Chair Barry Jackson, Vice Chair Simon Chano Ratan Das Charles Fink Harley Gilleland Lj

17、ubomir Kojovic Bill C. Kotheimer Prem Kumar Kevin A. Stephan Jim E. Stephens Del D. Weers Stan E. Zocholl v Copyright 2011 IEEE. All rights reserved. The following members of the individual balloting committee voted on this corrigendum. Balloters may have voted for approval, disapproval, or abstenti

18、on. William J. Ackerman Steven Alexanderson Ali Al Awazi G. Bartok David Beach Kenneth Behrendt Martin Best Steven Brockschink Chris Brooks Arvind K. Chaudhary Stephen Conrad Randall Crellin Gary Donner Michael Dood Donald Dunn Ahmed Elneweihi Gary Engmann Marcel Fortin Jeffrey Gilbert Anthony Giuli

19、ante Stephen Grier Randall Groves David Horvath James Ingleson R. Jackson Gael Kennedy James Kinney J. Koepfinger Boris Kogan Jim Kulchisky Chung-Yiu Lam Raluca Lascu Michael Mcdonald David Mcginn Jeffery Mizener Brian Mugalian Randolph Mullikin Jerry Murphy R. Murphy Bradley Nelson Jeffrey Nelson R

20、honda Netzel Michael S. Newman Joe Nims T. Olsen Mohamed Omran Lorraine Padden Allan St Peter Iulian Profir Michael Roberts Charles Rogers Zoltan Roman Steven Sano Bartien Sayogo Gregory Sessler Gil Shultz James Smith Jerry Smith Gary Stoedter Charles Sufana Michael Swearingen Richard Taylor S. Tham

21、ilarasan Michael Thompson Demetrios Tziouvaras Joe Uchiyama Eric Udren John Vergis John Wang D. Weers Philip Winston Tamatha Womack Richard Young Xi Zhu Sandeep Zope When the IEEE-SA Standards Board approved this corrigendum on 8 December 2010, it had the following membership: Robert M. Grow, Chair

22、Richard H. Hulett, Vice Chair Steve M. Mills, Past Chair Judith Gorman, Secretary Karen Bartleson Victor Berman Ted Burse Clint Chaplin Andy Drozd Alexander Gelman Jim Hughes Young Kyun Kim Joseph L. Koepfinger* John Kulick David J. Law Hung Ling Oleg Logvinov Ted Olsen Ronald C. Petersen Thomas Pre

23、vost Jon Walter Rosdahl Sam Sciacca Mike Seavey Curtis Siller Don Wright *Member Emeritus Also included are the following nonvoting IEEE-SA Standards Board liaisons: Satish Aggarwal, NRC Representative Richard DeBlasio, DOE Representative Michael Janezic, NIST Representative Lisa Perry IEEE Standard

24、s Program Manager, Document Development Matthew J. Ceglia IEEE Standards Program Manager, Technical Program Development vi Copyright 2011 IEEE. All rights reserved. Contents 4. Current transformer characteristics and classification.2 4.5 Dynamic characteristics .2 4.5.3 Saturation factor and time-to

25、-saturate2 vii Copyright 2011 IEEE. All rights reserved. IEEE Guide for the Application of Current Transformers Used for Protective Relaying Purposes Corrigendum 1: Corrections to Equation 18 and Equation 19 IMPORTANT NOTICE: This standard is not intended to ensure safety, security, health, or envir

26、onmental protection. Implementers of the standard are responsible for determining appropriate safety, security, environmental, and health practices or regulatory requirements. This IEEE document is made available for use subject to important notices and legal disclaimers. These notices and disclaime

27、rs appear in all publications containing this document and may be found under the heading “Important Notice” or “Important Notices and Disclaimers Concerning IEEE Documents.” They can also be obtained on request from IEEE or viewed at http:/standards.ieee.org/IPR/disclaimers.html. NOTEThe editing in

28、structions contained in this corrigendum define how to merge the material contained therein into the existing base standard and its amendments to form the comprehensive standard. The editing instructions are shown in bold italic. Four editing instructions are used: change, delete, insert, and replac

29、e. Change is used to make corrections in existing text or tables. The editing instruction specifies the location of the change and describes what is being changed by using strikethrough (to remove old material) and underscore (to add new material). Delete removes existing material. Insert adds new m

30、aterial without disturbing the existing material. Insertions may require renumbering. If so, renumbering instructions are given in the editing instruction. Replace is used to make changes in figures or equations by removing the existing figure or equation and replacing it with a new one. Editing ins

31、tructions, change markings, and this NOTE will not be carried over into future editions because the changes will be incorporated into the base standard. 1 Copyright 2011 IEEE. All rights reserved. IEEE Std C37.110-2007/Cor 1-2010 IEEE Guide for the Application of Current Transformers Used for Protec

32、tive Relaying Purposes Corrigendum 1: Corrections to Equation 18 and Equation 19 4. Current transformer characteristics and classification 4.5 Dynamic characteristics 4.5.3 Saturation factor and time-to-saturate There are errors in the numerators of both Equation (18) and Equation (19). Replace the existing Equation (18) and Equation (19) +SBSssxZRRRXZIV 1 (18) remanenceunit per 11 +SBSssxZRRRXZIV (19) with the following revised equations: +SBSSSxZRRRXZIV 1 (18) remanenceunit per 11 +SBSSSxZRRRXZIV (19) 2 Copyright 2011 IEEE. All rights reserved.

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