1、NEMA Standards PublicationNational Electrical Manufacturers AssociationNEMA SG 4-2009 (R2013)Alternating Current High-Voltage Circuit BreakersNEMA SG 4-2009 (R2013) Alternating Current High-Voltage Circuit Breakers Published by National Electrical Manufacturers Association 1300 N. 17th Street, Suite
2、 900 Rosslyn, Virginia 22209 Hwww.nema.orgH Under license from The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, 17th Floor New York, NY 10016-5997 USA Hwww.ieee.orgH Copyright 2013 by the Institute of Electrical and Electronics Engineers, Inc. All rights reserved, including
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4、he Institute of Electrical and Electronics Engineers, Incorporated. No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. NOTICE AND DISCLAIMER The information in this publication was consider
5、ed technically sound by the consensus of persons engaged in the development and approval of the document at the time it was developed. Consensus does not necessarily mean that there is unanimous agreement among every person participating in the development of this document. NEMA standards and guidel
6、ine publications, of which the document contained herein is one, are developed through a voluntary consensus standards development process. This process brings together volunteers and/or seeks out the views of persons who have an interest in the topic covered by this publication. While NEMA administ
7、ers the process and establishes rules to promote fairness in the development of consensus, it does not write the document and it does not independently test, evaluate, or verify the accuracy or completeness of any information or the soundness of any judgments contained in its standards and guideline
8、 publications. NEMA disclaims liability for any personal injury, property, or other damages of any nature whatsoever, whether special, indirect, consequential, or compensatory, directly or indirectly resulting from the publication, use of, application, or reliance on this document. NEMA disclaims an
9、d makes no guaranty or warranty, express or implied, as to the accuracy or completeness of any information published herein, and disclaims and makes no warranty that the information in this document will fulfill any of your particular purposes or needs. NEMA does not undertake to guarantee the perfo
10、rmance of any individual manufacturer or sellers products or services by virtue of this standard or guide. In publishing and making this document available, NEMA is not undertaking to render professional or other services for or on behalf of any person or entity, nor is NEMA undertaking to perform a
11、ny duty owed by any person or entity to someone else. Anyone using this document should rely on his or her own independent judgment or, as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstances. Information and other standar
12、ds on the topic covered by this publication may be available from other sources, which the user may wish to consult for additional views or information not covered by this publication. NEMA has no power, nor does it undertake to police or enforce compliance with the contents of this document. NEMA d
13、oes not certify, test, or inspect products, designs, or installations for safety or health purposes. Any certification or other statement of compliance with any health or safety-related information in this document shall not be attributable to NEMA and is solely the responsibility of the certifier o
14、r maker of the statement. SG 4-2009 (R2013) Page i Copyright 2013 by IEEE. Contents Page Foreword . iii Section 1 GENERAL . 1 1.1 Scope . 1 1.2 References 1 1.3 Definitions . 3 1.3.1 Applicable American National Standards 3 Section 2 RATING STANDARDS . 5 2.1 Applicable American National Standards .
15、5 Section 3 FUNCTIONAL COMPONENTS AND REQUIREMENTS . 6 3.1 Applicable American National Standards . 6 3.2 Operating Mechanisms For Outdoor Circuit Breakers 6 3.2.1 All Operating Mechanisms . 6 3.2.2 For Pneumatic Mechanisms Only 6 3.2.3 For Spring Charge Mechanisms 6 3.2.4 For Hydraulic Mechanisms 6
16、 3.3 Requirements for Terminals and Connections . 7 3.3.1 Threaded Terminals . 7 3.3.2 Flat Terminals 7 3.3.3 Ground Terminals 7 3.4 Instrument Current Transformers . 7 3.4.1 Ratings . 9 3.4.2 Characteristics . 13 3.4.3 Test Procedures . 17 3.5 Undervoltage Trip Device . 17 3.6 Secondary and Control
17、 Wiring (Small Wiring) 18 Section 4 TESTING STANDARDS . 19 4.1 Applicable American National Standards . 19 4.2 Radio Influence Voltage Tests as Applicable (Design Test) 19 4.3 Noise Requirements . 21 4.3.1 Terminology and Definitions 21 4.3.2 Noise Exposure Conditions . 21 4.3.3 Noise Level 21 4.3.4
18、 Noise Measurement Equipment 22 4.3.5 Design Tests 23 Section 5 SPECIAL APPLICATION . 24 5.1 Repetitive Duty Circuit Breakers for Arc Furnace Switching 24 5.1.3 Operating Conditions . 24 5.1.4 Conditions of the Circuit Breaker . 24 5.1.5 Minimum Operations Under Fault Conditions 24 Section 6 RECOMME
19、NDED INSTALLATION, OPERATION, AND MAINTENANCE PROCEDURES . 26 6.1 General . 26 Appendices A BUSHING POTENTIAL DEVICES FOR TANK-TYPE OUTDOOR OIL CIRCUIT BREAKERS . 27 B TYPICAL CONNECTION FOR SECONDARY BURDENS 32 SG 4-2009 (R2013) Page ii Copyright 2013 by IEEE. Tables Table 3-1 THREAD DIMENSIONS FOR
20、 THREADED TERMINAL STUDS . 7 Table 3-2 ACCURACY CLASS RATINGS FOR CURRENT TRANSFORMERS FOR OUTDOOR CIRCUIT BREAKERS . 10 Table 3-3 PREFERRED CURRENT RATINGS AND SECONDARY TAP CONNECTIONS FOR MULTI-RATIO CURRENT TRANSFORMERS . 12 Table 4-1 LIMITS OF RADIO INFLUENCE VOLTAGE 20 Table 4-2 SOUND LEVEL LI
21、MITS 22 Table 4-3 PERMISSIBLE NOISE EXPOSURE 23 Table 5-1 OPERATING CAPABILITIES . 24 Figures Figure 3-1 BOLT HOLES FOR TERMINAL CONNECTORS . 8 Figure 3-2 BOLT HOLES FOR TERMINAL CONNECTORS . 8 Figure 3-3 BOLT HOLES FOR TERMINAL CONNECTORS . 8 Figure 3-4 BOLT HOLES FOR TERMINAL CONNECTORS . 8 Figure
22、 3-5 BOLT HOLES FOR TERMINAL CONNECTORS . 8 Figure 3-6 TYPICAL ARRANGEMENT OF TWO BUSHING-TYPE CURRENT TRANSFORMERS ON ONE POLE OF DEAD-TANK-TYPE CIRCUIT BREAKERS, SHOWING TAPS AND NUMBERING SYSTEMS ON CONNECTION BOARD . 14 Figure 3-7 CURRENT TRANSFORMER AND LEAD IDENTIFICATION OF BUSHING-TYPE CURRE
23、NT TRANSFORMERS FOR DEAD-TANK-TYPE CIRCUIT BREAKERS 15 Figure 3-8 CURRENT TRANSFORMER AND LEAD IDENTIFICATION OF CURRENT TRANSFORMERS FOR LIVE-TANK-TYPE CIRCUIT BREAKERS 16 SG 4-2009 (R2013) Page iii Copyright 2013 by IEEE. Foreword This is one of a series of NEMA standards publications covering the
24、 range of low- to high-voltage switchgear products. Such products are generally applied to utility and industrial uses with a portion going to commercial applications. User and general interest input played a significant part in the development of the product requirements carried by this publication
25、. It, as well as other NEMA standards publications, is not intended to stand alone. Without exception: a. It adopts by reference the appropriate IEEE and American National Standards as the main body of this NEMA publication. b. It offers a vehicle for getting into print the proposed NEMA revisions o
26、f the pertinent C37 standards, until such time as those revisions can be evaluated, approved, and published as a revision of the particular American National Standard. c. It covers additional information about a product of specific interest to the manufacturing community, which the American National
27、 Standards Committee does not include in its scope. Within this NEMA publication, therefore, the main focus is on American National Standards and the consensus method of standards approval used by ANSI. This standard is a revision of NEMA SG 4-2000 and contains both substantive and editorial changes
28、. Approximate metric conversion of U.S. dimensions has been included for reference. Sections 1 through 5 contain only minor changes from the 2000 edition of this standard. The information in these sections has been offered to IEEE for revisions of ANSI/IEEE C37.04 and ANSI/IEEE C37.09. When these do
29、cuments are suitably revised, this material will be deleted from SG 4. Until this information is reflected in the IEEE standards, it continues to be included in SG 4. Section 6 has essentially been eliminated. The material formerly in this section has been revised and incorporated in a separate guid
30、e, NEMA SG 11-2008 Guide for Handling and Maintenance of Alternating Current Outdoor High Voltage Circuit Breakers. These standards are periodically reviewed by the High-Voltage Power Circuit Breaker Voting Classification of the Switchgear Section of NEMA for any revisions necessary to keep them up-
31、to-date with advancing technology. Proposed or recommended revisions shall be submitted to: Vice President, Technical Services National Electrical Manufacturers Association 1300 North 17th Street, Suite 1752 Rosslyn, VA 22209 This standards publication was developed by the High-Voltage Power Circuit
32、 Breaker Voting Classification of the Switchgear Section of NEMA. Section approval of the standard does not necessarily imply that all members voted for its approval or participated in its development. At the time it was approved, the voting classification was composed of the following members: T. O
33、lsen, Siemens Power Transmission & Distribution, Inc.Chair J. Baskin, Federal Pacific R. Beard, Hubbell Power Systems A. Bonner, Cooper Power Systems E. Byron, Schneider Electric/Square D Company C. Kennedy, Schneider Electric/Square D Company R. W. Long, Eaton Electrical, Inc. SG 4-2009 (R2013) Pag
34、e iv Copyright 2013 by IEEE. J. Pauley, Schneider Electric/Square D Company C. Schneider, Schneider Electric/Square D Company D. Sigmon, ABB Inc. Low Voltage Products & Systems D. Stone, Cooper Power Systems T. Tobin, S&C Electric Company P. Walsh, Ferraz Shawmut H. Wilson, Mitsubishi Electric Power
35、 Products Inc. J. Wiseman, Schneider Electric/Square D Company R. Yanniello, Eaton Electrical, Inc. R. York, ABB Inc. SG 4-2009 (R2013) Page 1 Copyright 2013 by IEEE. Section 1 GENERAL 1.1 SCOPE This standards publication encompasses: a. All ratings for outdoor circuit breakers above 1000 volts for
36、alternating-current service. Circuit breakers for service in metal-enclosed or metal-clad enclosures and automatic circuit reclosers are excluded. b. Attachments for these circuit breakers, such as bushing current transformers, bushing potential devices, interlocks, undervoltage trip devices, shunt
37、trips, overcurrent trips, and auxiliaries sold with the circuit breakers such as closing relays and structural steel supports. c. Renewal, modernizing, and spare parts for these circuit breakers and attachments. d. Recommended installation, operation, and maintenance procedures. 1.2 REFERENCES The f
38、ollowing publications are adopted in whole and in part as indicated herein as referenced in this standards publication: American National Standards Institute (ANSI) 11 West 42nd Street New York, NY 10036 4-1995 Techniques for High-Voltage Testing 4a-2001 Amendment to IEEE Standard Techniques for Hig
39、h-Voltage Testing C2-2007 National Electrical Safety Code C37.04-1999 Rating Structure for AC High-Voltage Circuit Breakers C37.06-2000 Preferred Ratings and Related Required Capabilities for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis C37.06.1-2000 High-Voltage Circuit Bre
40、akers Rated on a Symmetrical Current Basis Designated “Definite Purpose for Fast Transient Recovery Voltage Rise Times” C37.082-1982 (R 1988) Methods for the Measurement of Sound Pressure Levels of AC Power Circuit Breakers C37.09-1999 Test Procedure for AC High-Voltage Circuit Breakers Rated on a S
41、ymmetrical Current Basis C37.11-1997 Requirements for Electrical Control for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis SG 4-2009 (R2013) Page 2 Copyright 2013 by IEEE. C37.12-1991 AC High-Voltage Circuit Breakers Rated on a Symmetrical Current BasisSpecifications Guide C3
42、7.010-1999 Application Guide for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis C37.011-2005 Application Guide for Transient Recovery Voltage for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis C37.012-2005 Application Guide for Capacitance Current Switch
43、ing AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis C37.015-1993 (R1999) Application Guide for Shunt Reactor Current Switching C37.85-2002 Safety Requirements for X-Radiation Limits for AC High-Voltage Power Vacuum Interrupters C37.100-1992 Definitions for Power Switchgear C57.
44、13-2008 Requirements for Instrument Transformers C57.19.00-2004 General Requirements and Test Procedures for Outdoor Power Apparatus Bushings C57.19.01-2000 Performance Characteristics and Dimensions for Outdoor Apparatus Bushings C84.1-2006 Voltage Ratings for Electric Power Systems and Equipment (
45、60 Hz) S1.1-1994 (R2004) Acoustical Terminology (Including Mechanical Shock and Vibration) S1.4-1983 (R2001) Specification for Sound Level Meters (including Supplement S1.4a-1985) S1.13-2005 Methods for the Measurement of Sound Pressure Levels NoteThe latest NEMA approved revision for the referenced
46、 ANSI and IEEE standards will be in effect. National Fire Protection Association 1 Batterymarch Park, Box 9101 Quincy, MA 02269-9101 70B-2006 Electrical Equipment Maintenance 70E-2009 Electrical Safety Requirements for Employee Workplaces American Society for Mechanical Engineers (ASME) Order Depart
47、ment 22 Law Drive, Box 2300 Fairfield, NJ 07007-2300 Material Specifications BPVC Section 8-2004 Boiler and Pressure Vessel Code, Section 8, Pressure Vessels SG 4-2009 (R2013) Page 3 Copyright 2013 by IEEE. American Society for Testing and Materials (ASTM) 100 Barr Harbor Drive West Conshohocken, PA
48、 19428 F855-04 Standard Specifications for Temporary Protective Grounds to be used on De-energized Electric Power Lines and Equipment American Society of Mechanical Engineers (ASME) 3 Park Avenue New York, NY 10016-5990 B1.1-2003 Unified Inch Screw Threads IEC Central Office Customer Service Center
49、3, rue de Varembe P.O. Box 131, 1211 Geneva 20 Switzerland IEC publications are available for ordering either from IEC directly or from ANSI. NoteRefer to the listing of ANSI standards Institute of Electrical and Electronics Engineers, Inc. (IEEE) 445 Hoes Lane, P.O. Box 1331 Piscataway, NJ 08855-1331 C50.13-2005 Cylindrical-Rotor 50 Hz and 60 Hz Synchronous Generators Rated 10 MVA and Above National Electrical Manufacturers Association (NEMA) Standards Publications Office 1300 North 17th Street, Suite 1752 Rosslyn, VA 22209 CC 1-2005 Electric Power Connectors for Su
