1、 IEEE Std C37.20.2-2015 (Revision of IEEE Std C37.20.2-1999) IEEE Standard for Metal-Clad Switchgear Sponsor Switchgear Committee of the IEEE Power and Energy Society Approved 11 June 2015 IEEE-SA Standards Board Abstract: Metal-clad (MC) medium-voltage switchgear that contains drawout electrically
2、operated circuit breakers is covered. MC switchgear is compartmentalized to isolate components such as instrumentation, main bus, and both incoming and outgoing connections with grounded metal barriers. Rated maximum voltage levels for metal-clad switchgear range from 4.76 kV to 38 kV with main bus
3、continuous current ratings of 1200 A, 2000 A, 3000 A, and 4000 A. MC switchgear also contains associated control, instruments, metering, relaying, protective, and regulating devices, as necessary. Service conditions, ratings, temperature limitations and classification of insulating materials, insula
4、tion (dielectric) withstand voltage requirements, test procedures, and applications are discussed. Keywords: control, cumulative loading, current transformers, drawout, IEEE C37.20.2, indoor, instrumentation, load current-carrying, metal-clad (MC) switchgear, metal-enclosed (ME) power switchgear, ou
5、tdoor, protection, switchgear assemblies, transformer accuracy, voltage transformers 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 Electronics Engineers, Inc. All rights reserved. Published 22
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35、andard for Metal-Clad Switchgear Working Group Working Group had the following membership: Michael Wactor, Chair T. W. Olsen, Vice Chair Paul D. Barnhart James E. Bowen Ted Burse Eldridge R. Byron Jerry Earl Douglas J. Edwards Larry Farr S. S. Gohil David J. Lemmerman Frank Mayle Deepak Mazumdar Dal
36、eep C. Mohla Miklos J. Orosz Amit Patel Julian Profir Robert J. Puckett Carl Schneider James E. Smith H. Song Paul B. Sullivan Chand Z. Tailor John Toney Marcelo ValdesThe following members of the individual balloting committee voted on this standard. Balloters may have voted for approval, disapprov
37、al, or abstention. William Ackerman Mohammed Ashraf Ali Charles Ball Thomas Barnes Paul Barnhart George Becker Robert Behl Seth Benson W. J. (Bill) Bergman David Beseda Steven Bezner Wallace Binder Thomas Blair William Bloethe David Burns Ted Burse Thomas Callsen Paul Cardinal Stephen Cary Darold Da
38、vis Gary Donner Randall Dotson Louis Doucet Neal Dowling Dana Dufield Edgar Dullni Jerry Earl Douglas J. Edwards Donald Elliott Ronald Esco Keith Flowers Rabiz Foda Marcel Fortin Fredric Friend Doaa Galal Frank Gerleve Douglas Giraud Robert Goodin James Graham Randall Groves Ajit Gwal Charles Hand J
39、eff Hanson John Harley Jeffrey Helzer Steven Hensley Reid Herzog Gary Heuston Robert Hoerauf David Horvath Song Jin Andrew Jones Laszlo Kadar John Kay Chad Kennedy Gael Kennedy Yuri Khersonsky Morteza Khodaie Boris Kogan Jim Kulchisky Marc Lacroix Chung-Yiu Lam Albert Livshitz R. Long Thomas Lundqui
40、st Frank Mayle William McBride Jeffery Mizener Daleep C. Mohla Charles Morse Thomas Mulcahy Jerry Murphy Dennis Neitzel Michael Newman Joe Nims George Nourse T. W. Olsen Lorraine Padden Edward Peters Christopher Petrola Julian Profir Samala Santosh Reddy Johannes Rickmann Michael Roberts Charles Rog
41、ers Tim Rohrer Thomas Rozek Bartien Sayogo Carl Schneider Robert Seitz Hamid Sharifnia Devki Sharma John Shullaw Michael Sigmon David Singleton James E. Smith Jerry Smith Ralph Stell Paul B. Sullivan James Swank Michael Swearingen Donald Swing Chand Z. Tailor David Tepen Wayne Timm Marcelo Valdes Jo
42、hn Vergis Michael Wactor Mark Waldron William Walter John Webb Kenneth White James Wilson Larry Yonce Jian Yu Kipp Yule Matthew ZeedykCopyright 2015 IEEE. All rights reserved. vii When the IEEE-SA Standards Board approved this standard on 11 June 2015, it had the following membership: John D. Kulick
43、, 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 Michael Janezic Joseph L. Koepfinger* David J. Law Hung Ling Andrew Myles T. W. Olsen Glenn Parsons
44、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. viii Introduction This introduction is not part of IEEE Std C37.20.2-2015, IEEE Standard for Metal-Cla
45、d Switchgear. This standard has been revised to reflect needed technical changes that have been suggested since the last revision to IEEE C37.20.2TMwas published in 1999. The significant changes include: Addition of 4000 A as a preferred continuous current rating Addition of new definitions for type
46、s of insulation as used in metal-clad (MC) switchgear Addition of special considerations/requirements when generator circuit breakers are used in MC switchgear Clarification/expansion of the tests for insulation materials Updating of the seismic qualification test references Update to finish and con
47、struction requirements Addition of Annex C for Partial Discharge testing and Annex D for Voltage Dividers Conversion of “Notes” to normative text (where appropriate) This standard includes only the requirements for metal-clad switchgear. These requirements were previously a part of IEEE Std C37.20TM
48、-1969, IEEE Standard for Switchgear Assemblies Including Metal-Enclosed Bus (1974 consolidated edition).1Other types of equipment previously included in IEEE Std C37.20-1969 are incorporated in separate publications. For many years, IEEE Std C37.20-1969 covered all switchgear assemblies, including m
49、etal-enclosed bus. Standards committees of the IEEE Switchgear Assemblies Subcommittee and the NEMA Power Switchgear Assemblies Technical Committee recommended that the document be further developed and, where appropriate, that the various sections be identified with their own standards. This approach also coordinates with the Conformance Test Procedure Standards. The IEEE Switchgear Assemblies Subcommittee was responsible for this revision. This publication is one of a series covering Switchgear Assemblies. Members of the series are as follows: IEEE Std C37.
