1、 IEEE Standard for Indoor AC Switches (1 kV to 38 kV) for Use in Metal-Enclosed Switchgear Sponsored by the Switchgear Committee IEEE 3 Park Avenue New York, NY 10016-5997 USA 13 May 2013 IEEE Power and Energy Society IEEE Std C37.20.4-2013(Revision of IEEE Std C37.20.4-2001) IEEE Std C37.20.4TM-201
2、3 (Revision of IEEE Std C37.20.4-2001) IEEE Standard for Indoor AC Switches (1 kV to 38 kV) for Use in Metal-Enclosed Switchgear Sponsor Switchgear Committee of the IEEE Power and Energy Society Approved 6 March 2013 IEEE-SA Standards Board Recognized as an American National StandardAbstract: Indoor
3、 ac medium-voltage switches for use in enclosures for application in power circuits at voltages above 1 kV through 38 kV are covered in this standard. Stationary or drawout, manual or power operation, and fused or unfused are included. Keywords: IEEE C37.20.4TM, indoor ac switches, metal-enclosed sw
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18、ds Association. vi Copyright 2013 IEEE. All rights reserved. Participants At the time this draft standard was submitted to the IEEE-SA Standards Board for approval, the Switchgear Assemblies Working Group had the following membership: Charles Ball, Chair T. W. Olsen, Vice Chair Paul D. Barnhart Jerr
19、y Baskin Eldridge Byron Larry Farr Douglas H. Giraud Ronald D. Hartzel Anurag Jivanani Deepak Mazumdar Steven Meiners Chad Morris Miklos J. Orosz Raghunath Parthasarathi Amit Patel Robert J. Puckett James E. Smith Paul B. Sullivan John Toney Larry E. Yonce The following members of the individual bal
20、loting committee voted on this standard. Balloters may have voted for approval, disapproval, or abstention. Charles Ball Paul D. Barnhart Ted Burse William Bush Ray Davis Randall Dotson Douglas Edwards Doaa Galal Douglas H. Giraud Randall Groves David Horvath Danny Hoss Harry Josten Laszlo Kadar Cha
21、d Kennedy Yuri Khersonsky Jim Kulchisky Benjamin Lanz Michael Lauxman Albert Livshitz Greg Luri William McBride Peter Meyer Anne Morgan Charles Morse Jeffrey Nelson T. W. Olsen Vincenzo Paparo Christopher Petrola Iulian Profir Scott Reed Bartien Sayogo Carl Schneider James E. Smith James Smith Jerry
22、 Smith Michael Swearingen T. Tobin John Vergis Kenneth White Jian Yu When the IEEE-SA Standards Board approved this standard on 6 March 2013, it had the following membership: John Kulick, Chair David J. Law, Vice Chair Richard H. Hulett, Past Chair Konstantinos Karachalios, Secretary Masayuki Ariyos
23、hi Peter Balma Farooq Bari Ted Burse Wael William Diab Stephen Dukes Jean-Philippe Faure Alexander Gelman Mark Halpin Gary Hoffman Paul Houz Jim Hughes Michael Janezic Joseph L. Koepfinger* Oleg Logvinov Ron Petersen Gary Robinson Jon Walter Rosdahl Adrian Stephens Peter Sutherland Yatin Trivedi Phi
24、l Winston Yu Yuan *Member Emeritus vii Copyright 2013 IEEE. All rights reserved. Also included are the following nonvoting IEEE-SA Standards Board liaisons: Richard DeBlasio, DOE Representative Michael Janezic, NIST Representative Julie Alessi IEEE Standards Program Manager, Document Development Eri
25、n Spiewak IEEE Standards Program Manager, Technical Program Development viii Copyright 2013 IEEE. All rights reserved. Introduction This introduction is not part of IEEE Std C37.20.4-2013, IEEE Standard for Indoor AC Switches (1 kV to 38 kV) for Use in Metal-Enclosed Switchgear. This standard has be
26、en revised to reflect needed technical changes that have been suggested since the last revision was published, incorporating preferred ratings that were previously found in ANSI C37.22-1997 B1aand harmonizing with IEEE Std C37.100.1-2007.bNEMA has turned over the rights to the preferred ratings cont
27、ained in ANSI C37.22-1997 and is no longer responsible for Clause 5 and Clause 7 in this standard. This edition was prepared by the Switchgear Assemblies Subcommittee of the IEEE Switchgear Committee. Through this eort over the many years, the switchgear assemblies standards have been of extreme val
28、ue to the industry. Further suggestions for improvement gained in the use of this standard are welcome. aThe numbers in brackets correspond to those of the bibliography in Annex A. bInformation on references can be found in Clause 2. ix Copyright 2013 IEEE. All rights reserved. Contents 1. Overview
29、1 1.1 Scope . 1 1.2 Purpose 2 2. Normative references 2 3. Definitions 3 4. Service conditions 3 5. Ratings 4 5.1 Rated maximum voltage (V) or (Ur) 5 5.2 Rated insulation level: (Ud) or (Up) . 5 5.3 Rated power frequency (fr) 6 5.4 Rated continuous (normal) current and temperature rise . 6 5.5 Rated
30、 short-time withstand current (Ik) 7 5.6 Rated peak (formerly momentary) withstand current (Ip) 8 5.7 Rated duration of short circuit (tk) . 8 5.8 Rated supply voltage of closing and opening devices and of auxiliary and control circuits (Ua) 8 5.9 Rated supply frequency of closing and opening device
31、s and of auxiliary circuits 8 5.10 Rated pressure of compressed gas supply for insulation and/or operation 9 5.11 Rated filling levels for insulation and/or operation . 9 5.12 Rated electrical operations . 9 5.13 Rated mechanical operations . 9 5.14 Rated load-switching current . 9 5.15 Rated fault-
32、making current 10 5.16 Rated fault-making current for an integral switch and fuse . 10 5.17 Rated cable-charging switching current (optional) 10 5.18 Rated unloaded transformer switching current (optional) . 10 5.19 Rated direct-acting fuse-tripping current (optional) 10 6. Tests . 10 6.1 Grouping o
33、f tests . 11 6.2 Dielectric tests . 12 6.3 Radio influence voltage test . 16 6.4 Measurement of the resistance of circuits 16 6.5 Temperature-rise tests 16 6.6 Short-time withstand current and peak withstand current (formerly momentary) tests . 18 6.7 Verification of the degrees of protection provid
34、ed by enclosures . 19 6.8 Tightness tests 19 6.9 Electromagnetic compatibility tests . 19 6.10 Additional tests on auxiliary and control circuits 19 6.11 X-Radiation procedure for vacuum interrupters 19 6.12 Mechanical operations tests . 20 6.13 Fault-making test . 21 6.14 Load-switching current tes
35、t . 23 6.15 Cable-charging current switching test (optional) . 23 6.16 Unloaded-transformer switching test (optional) 24 6.17 Direct-acting fuse-tripping current test (optional) . 24 6.18 Routine (production) 24 6.19 Conformance test . 25 x Copyright 2013 IEEE. All rights reserved. 6.20 Field dielec
36、tric tests . 25 7. Design and construction . 26 7.1 Requirements for liquids in switchgear . 26 7.2 Requirements gases in switchgear . 26 7.3 Grounding of switch 26 7.4 Auxiliary and control equipment . 27 7.5 Dependent power operation . 27 7.6 Stored energy operation . 27 7.7 Independent manual ope
37、ration . 27 7.8 Operation of releases . 27 7.9 Low- and high-pressure interlocking and monitoring devices . 27 7.10 Nameplates 27 7.11 Interlocking devices . 28 7.12 Position indication . 28 7.13 Degrees of protection by enclosure . 29 7.14 Creepage distance for outdoor insulators . 29 7.15 Gas and
38、vacuum tightness . 29 7.16 Liquid tightness . 29 7.17 Flammability 29 7.18 Electromagnetic compatibility . 29 7.19 X-ray emissions . 29 7.20 Primary connections 29 7.21 Functional components 30 7.22 Securing the position . 30 7.23 Auxiliary contacts for signaling, if provided . 30 8. Application gui
39、de . 31 8.1 General 31 8.2 Voltage 31 8.3 Frequency 31 8.4 Continuous current 31 8.5 Short-circuit current . 31 8.6 Cable-charging current 31 8.7 Unloaded transformer switching current capability . 31 8.8 Direct-acting fuse trip capabilities . 32 8.9 Unusual service conditions 32 8.10 Maintenance. 3
40、2 Annex A (informative) Bibliography . 33 1 Copyright 2013 IEEE. All rights reserved. IEEE Standard for Indoor AC Switches (1 kV to 38 kV) for Use in Metal-Enclosed Switchgear IMPORTANT NOTICE: IEEE Standards documents are not intended to ensure safety, health, or environmental protection, or ensure
41、 against interference with or from other devices or networks. Implementers of IEEE Standards documents are responsible for determining and complying with all appropriate safety, security, environmental, health, and interference protection practices and all applicable laws and regulations. This IEEE
42、document is made available for use subject to important notices and legal disclaimers. These notices and disclaimers 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 al
43、so be obtained on request from IEEE or viewed at http:/standards.ieee.org/IPR/disclaimers.html. 1. Overview 1.1 Scope This standard covers indoor ac switches rated above 1 kV through 38 kV for use in metal-enclosed switchgear as follows: a) Stationary or drawout b) Manual or power operation c) Fused
44、 or unfused The term indoor is intended to indicate that the enclosure provides a degree of protection to the switch and the enclosure may be suitable for indoor, outdoor, or other service conditions and complies with the requirements of switchgear assemblies as defined by IEEE Std C37.20.2TMor IEEE
45、 Std C37.20.3TM.1This standard does not apply to switches for use in subsurface or pad-mounted switchgear in IEEE Std C37.74TMor to high-voltage air switches in IEEE Std C37.30TM. 1Information on references can be found in Clause 2. IEEE Std C37.20.4-2013 IEEE Standard for Indoor AC Switches (1 kV t
46、o 38 kV) for Use in Metal-Enclosed Switchgear 2 Copyright 2013 IEEE. All rights reserved. Within this standard, the words “switch(es)” shall be considered to mean metal-enclosed, indoor, three-phase, ac medium-voltage switch(es) as defined by this scope. There are switch designs that have short-circ
47、uit current interrupting capability, and these devices are covered by this standard only to the extent of meeting the listed testing requirements. However, due to the additional capability, additional testing is required and the manufacturers should be consulted. 1.2 Purpose The purpose of this stan
48、dard is to provide the usual service conditions, definition of ratings, preferred ratings, design and production tests, construction requirements, and an application guide for the switches covered by this standard. This standard is based on criteria stated in IEEE Std C37.30TM, ANSI C37.22-1997 B1,2
49、IEEE Std C37.34TM, and IEEE Std 1247TM-2005. 2. Normative references The following referenced documents are indispensable for the application of this document (i.e., they must be understood and used, so each referenced document is cited in text and its relationship to this document is explained). For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments or corrigenda) applies. ANSI C37.58, American National Standard for SwitchgearIndoor AC Medium-Voltage Switche
