1、 IEEE Guide for Application of Digital Line Current Differential Relays Using Digital Communication Sponsored by the Power System Relaying Committee IEEE 3 Park Avenue New York, NY 10016-5997 USA IEEE Power and Energy SocietyIEEE Std C37.243-2015IEEE Std C37.243-2015 IEEE Guide for Application of Di
2、gital Line Current Differential Relays Using Digital Communication Sponsor Power System Relaying Committee of the IEEE Power and Energy Society Approved 11 June 2015 IEEE-SA Standards Board Abstract: A comprehensive guide to practical line current differential schemes using digital communications. O
3、perating principles, synchronization methods, channel requirements, current transformer requirements, external time reference requirements, backup considerations, testing considerations, and troubleshooting are included. This guide also provides specific guidelines for various application aspects in
4、cluding multi-terminal lines, series compensated lines, mutually coupled lines, line charging current, in-zone transformers and reactors, single-phase tripping and reclosing, as well as communications channel requirements. Keywords: alpha plane, charge comparison, current differential line protectio
5、n, current differential operating methods, current ration plane, IEEE C37.243, percentage differential, ping-pong methods, time synchronization The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, USA Copyright 2015 by The Institute of Electrical and El
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34、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 IEEE guide was completed, the D27 W
35、orking Group had the following membership: Solveig Ward, Chair Bruce Mackie, Vice ChairPhilip Beaumont Fernando Calero Randall Crellin Alla Deronja Bill Higinbotham Robert Ince Ilija Jankovic Ljubomir Kojovic Alex Lee Don Lukach Aaron Martin Roy Moxley Nagpal Mukesh Craig Palmer Vajira Pathirana Joe
36、 Perez David Purpura Ryland Revelle Sam Sambasivan Mark Schroeder Mike Stojak Ian Tualla Demetrios Tziouvaras Joe Uchiyama Jun Verzosa Ilia Voloh Don Ware The following members of the individual balloting committee voted on this guide. Balloters may have voted for approval, disapproval, or abstentio
37、n. William Ackerman Ali Al Awazi Steven Alexanderson Jay Anderson G. Bartok Philip Beaumont Martin Best Thomas Blair Gustavo Brunello William Byrd Paul Cardinal Stephen Conrad Luis Coronado Randall Crellin Randall Cunico Alla Deronja Gary Donner Kenneth Fodero Frank Gerleve Stephen Grier Randall Gro
38、ves Roger Hedding Jerry Hohn C. Huntley Robert Ince Gerald Johnson Innocent Kamwa John Kay James Kinney Gary Kobet Boris Kogan Ljubomir Kojovic Jim Kulchisky Chung-Yiu Lam Bruce Mackie Omar Mazzoni Dean Miller John Miller Daleep Mohla Joe Mooney Jerry Murphy Michael Newman Gary Nissen James OBrien L
39、orraine Padden Subhash Patel Charles Petras Michael Roberts Charles Rogers M. Sachdev Miriam Sanders Bartien Sayogo Mark Simon William Taylor Michael Thompson Demetrios Tziouvaras Joe Uchiyama John Vergis Quintin Verzosa Ilia Voloh Kenneth White Philip Winston Ray Young Richard Young When the IEEE-S
40、A Standards Board approved this guide on 11 June 2015, it had the following membership: John D. Kulick, Chair Jon Walter Rosdahl, Vice Chair Richard H. Hulett, Past Chair Konstantinos Karachalios, Secretary Masayuki Ariyoshi Ted Burse Stephen Dukes Jean-Philippe Faure J. Travis Griffith Gary Hoffman
41、 Michael Janezic Joseph L. Koepfinger* David J. Law Hung Ling Andrew Myles T. W. Olsen Glenn Parsons Ronald C. Petersen Annette D. Reilly Stephen J. Shellhammer Adrian P. Stephens Yatin Trivedi Philip Winston Don Wright Yu Yuan Daidi Zhong *Member Emeritus Copyright 2015 IEEE. All rights reserved. v
42、i Introduction This introduction is not part of IEEE Std C37.243-2015, IEEE Guide for Application of Digital Line Current Differential Relays Using Digital Communication. This guide is intended to assist protection engineers and technologists in effectively applying digital current differential rela
43、ys using digital communications channels and protection systems to protect transmission lines. Copyright 2015 IEEE. All rights reserved. vii Contents 1. Overview 1 1.1 Scope . 1 2. Normative references 1 3. Definitions, special terms, acronyms, and abbreviations 2 3.1 Definitions . 2 3.2 Special ter
44、ms 2 3.3 Acronyms and abbreviations . 2 4. Current differential line protection applications . 4 4.1 Current differential versus other forms of line protection relaying . 4 5. Current differential operating methods . 6 5.1 Differential principle . 6 5.2 Current differential protection measuring prin
45、ciples . 7 5.3 Current measurement techniques 13 6. Communication scheme design .14 6.1 Requirements 16 6.2 Difference between voice and data communications 17 6.3 Reliability .18 6.4 Communications networks .18 6.5 Interoperability .21 6.6 Addressing 21 6.7 Sampling time synchronization based on ch
46、annel time 23 6.8 Sampling time synchronization by external reference 26 6.9 Techniques for security against channel and synchronization impairments .28 6.10 Redundant channels 29 6.11 Communications channel interface options 30 6.12 IEC 61850 substation to substation communications .31 7. Applicati
47、on considerations 33 7.1 Multi-terminal line protection .33 7.2 Dual breaker applications .34 7.3 Setting considerations .35 7.4 Open-CT conditions .37 7.5 CT ratio compensation 37 7.6 Mutually coupled lines .38 7.7 Charging current compensation 38 7.8 Switch-onto fault 41 7.9 Weak infeed issues .42
48、 7.10 Out-of-step 42 7.11 CT saturation detection/compensation 42 7.12 Stub bus 42 7.13 Single phase tripping 43 7.14 Multi-phase auto-reclosing .44 7.15 Series compensated lines 44 7.16 Shunt reactors .45 7.17 In-zone transformers and tapped loads .46 7.18 Backup protection considerations .48 Copyr
49、ight 2015 IEEE. All rights reserved. viii 7.19 Communications channel cutout switch .48 8. Testing and troubleshooting 49 8.1 Loopback testing .49 8.2 Local relay back to back bench test 49 8.3 Time-synchronized end-to-end testing .50 8.4 Troubleshooting an in-service current differential system50 Annex A (informative) Differential protection of power lines/cables based on Rogowski coil current sensors .53 Annex B (informative) Bibliography.55 Copyright 2015 IEEE. All rights reserved. ix IEEE Guide for Application of Digital Line Current Differential Relays Using Digital C
