1、 IEEE Standard for Control Cabinets forPower Transformers Sponsored by the Transformers Committee IEEE 3 Park Avenue New York, NY 10016-5997 USA 3 January 2012 IEEE Power +1 978 750 8400. Permission to photocopy portions of any individual standard for educational classroom use can also be obtained t
2、hrough the Copyright Clearance Center. iv Copyright 2012 IEEE. All rights reserved. Introduction This introduction is not part of IEEE Std C57.148-2011, IEEE Standard for Control Cabinets for Power Transformers. This standard is intended to provide requirements for the design and manufacture of cont
3、rol cabinets for Class I and Class II power transformers. The standard also contains options to cover the various types of components that could be provided, the various types of cooling classes that may be employed, and the various site-specific or user-specified requirements that may exist for the
4、 transformer. 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 compliance to any applicable regulatory requirements. Implementers of the standard are responsible for observ
5、ing 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 documents may not be construed as doing so. Copyrights This document is copyrighted by the IEEE. It is made
6、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 of engineering practices and methods. By making this document available for use and adoption by public a
7、uthorities 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 Updating of IEEE documents Users of IEEE standards should be aware that these documents may be superseded at any time by the issuance of new editions or may be amended from time to time through the issuan
8、ce 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 effect. In order to determine whether a given document is the current edition and whether it has been am
9、ended 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 listed previously. For more information about the IEEE Standards Association or the IEEE standards develop
10、ment 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/ieee/updates/errata/index.html. Users are encouraged to check this URL for errata periodically. v Copyr
11、ight 2012 IEEE. All rights reserved. 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 of this standard may require use of subject matter covered b
12、y patent rights. By publication of this standard, 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 which a license may be required, for conducting inquiries into the le
13、gal 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-discriminatory. Users of this standard are expressly advised that determinati
14、on 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. vi Copyright 2012 IEEE. All rights reserved. Participants At the time this IEEE standard was completed,
15、 with guidance from the Power Transformers Subcommittee, the Control Cabinets of Power Transformers Working Group had the following membership: Joe Watson, Chair Steven Schappell, Vice Chair David Aho Jerry Allen Gregory Anderson Stephen Antosz Javier Arteaga Donald Ayers Peter Balma Ron Barker Thom
16、as Bassett Barry Beaster Stephen Beckman Oscar Bello Enrique Betancourt Carlos Bittner Gene Blackburn Dennis Blake Daniel Blaydon William Boettger Joseph Cheung Donald Chu Craig Colopy Dan de la Cruz William Darovny Ronald Daubert Dieter Dohnal James Bruce Fairris Jeffrey Fleeman Jean-Philippe Gagno
17、n Eduardo Garcia Andreas Garnitschnig Saurabh Ghosh Harry Gianakouros Eduardo Gomez-Hennig James Graham Jorge Guerra Everett Hager, Jr. Wayne Hansen Thomas Harbaugh Robert Hartgrove Gary Hartman Gary Hoffman Timothy Huff Catherine Hurley Murray Joyner David Keithly Stanley Kostyal Krzysztof Kulasek
18、Michael Lau Thomas Lundquist Michael Martin John Matthews Joseph Melanson Jerry Murphy Ryan Musgrove Steve Northrup Bipin Patel Sanjay Patel Paulette Powell John Progar Martin Rave Randolph Rensi Marnie Roussell Subhas Sarkar Dinesh Sankarakurup Steven Schroeder Ewald Schweiger Dilipkumar Shah Devki
19、 Sharma Hemchandra Shertukde Manuel Silvestre H. Jin Sim Joao Sousa Andrew Steineman Craig Stiegemeier Raman Subramanian Craig Swinderman Mark Teetsel Malcolm Thaden Roger Verdolin Jane Ann Verner David Wallach Ronald Wiefling Frank Wolfe Jennifer Yu Kipp Yule Peter Zhao The following members of the
20、 individual balloting committee voted on this standard. Balloters may have voted for approval, disapproval, or abstention. Satish Aggarwal Steven Alexanderson Stephen Antosz Stan Arnot Donald Ayers Peter Balma David Bassett Barry Beaster W. J. Bill Bergman Wallace Binder Thomas Blackburn Daniel Blay
21、don William Boettger Steven Brockschink Chris Brooks Suresh Channarasappa Jerry Corkran John Crouse William Darovny Gary Donner Michael Dood Randall Dotson Fred Elliott Gary Engmann James Fairris Rabiz Foda Bruce Forsyth Marcel Fortin Saurabh Ghosh Jalal Gohari Edwin Goodwin James Graham William Gri
22、esacker Charles Grose Randall Groves Bal Gupta Ajit Gwal J. Harlow David Harris Robert Hartgrove Steven Hensley Lee Herron Gary Heuston Gary Hoffman Philip Hopkinson David Horvath Laszlo Kadar John Kay vii Copyright 2012 IEEE. All rights reserved. Gael Kennedy Sheldon Kennedy Yuri Khersonsky Morteza
23、 Khodaie J. Koepfinger Neil Kranich Jim Kulchisky Saumen Kundu John Lackey Chung-Yiu Lam Hua Liu Albert Livshitz Thomas Lundquist Greg Luri J. Dennis Marlow John W. Matthews Joseph Melanson Daleep Mohla Georges Montillet Kimberly Mosley Jerry Murphy Ryan Musgrove K. R. M. Nair Anthony Napikoski Brad
24、ley Nelson Michael S. Newman Joe Nims Gary Nissen Mohamed Omran Bansi Patel Paul Pillitteri Alvaro Portillo Bertrand Poulin Lewis Powell Iulian Profir Jean-Christophe Riboud John Rossetti Marnie Roussell M. Sachdev Dinesh Sankarakurup Bartien Sayogo Hamidreza Sharifnia Devki Sharma Stephen Shull Gil
25、 Shultz James Smith Jerry Smith Zareh Soghomonian Gary Stoedter John Tengdin David Tepen Malcolm Thaden John Toth Joe Uchiyama John Vergis Jane Verner Keith Wallace David Wallach Barry Ward Joe Watson Kenneth White Kipp Yule Matthew Zeedyk When the IEEE-SA Standards Board approved this standard on 1
26、0 September 2011, it had the following membership: Richard H. Hulett, Chair John Kulick, Vice Chair Robert M. Grow, Past Chair Judith Gorman, Secretary Masayuki Ariyoshi William Bartley Ted Burse Clint Chaplin Wael Diab Jean-Philippe Faure Alexander Gelman Paul Houz Jim Hughes Joseph L. Koepfinger*
27、David J. Law Thomas Lee Hung Ling Oleg Logvinov Ted Olsen Gary Robinson Jon Walter Rosdahl Sam Sciacca Mike Seavey Curtis Siller Phil Winston Howard L. Wolfman Don Wright *Member Emeritus Also included are the following nonvoting IEEE-SA Standards Board liaisons: Satish Aggarwal, NRC Representative
28、Richard DeBlasio, DOE Representative Michael Janezic, NIST Representative Francesca Drago IEEE Standards Program Manager, Document Development Erin Spiewak IEEE Standards Program Manager, Technical Program Development viii Copyright 2012 IEEE. All rights reserved. Contents 1. Overview 1 1.1 Scope .
29、1 1.2 Purpose 1 2. Normative references 1 3. Definitions, acronyms, and abbreviations 2 3.1 Definitions . 2 3.2 Acronyms and abbreviations . 3 4. Cabinet-ordering specifications 4 5. Standard cabinet construction. 4 5.1 General 4 5.2 Cabinet-housing criteria. 4 5.3 Cabinet dimensions 4 5.4 Cabinet c
30、onstruction materials. 5 5.5 Compartment styles and welding. 5 5.6 Rain sheds 6 5.7 Fixed back and side panels 6 5.8 Swing panels 6 5.9 Doors, hardware, and gaskets 6 5.10 Ventilation and drains 7 5.11 Location of conduit entry points 7 5.12 Bottom plate for cable entrance. 7 5.13 Grounding of panel
31、s and doors 7 5.14 Finish coatings. 8 5.15 External cabinet grounding and grounding terminals 8 5.16 General cabinet layout . 8 5.17 Internal ground connections and ground bus. 9 5.18 Lights and ac power outlet. 9 5.19 Wiring 9 5.20 Circuit protection. 10 5.21 Contactors 11 5.22 Heaters. 11 5.23 AC
32、power and cooling control circuits 11 6. Numbering and labeling system . 12 6.1 Device numbers . 12 6.2 Current transformer numbering . 12 6.3 Terminal block, device, and terminal labels 13 6.4 Current transformer circuit terminal block, terminal, test switch, and secondary wiring numbers . 13 6.5 C
33、ontrol, alarm, and trip-circuit terminal blocks and terminal numbers. 14 6.6 Wire markers . 15 6.7 Wiring diagrams 16 7. Cabinet construction options 16 7.1 General 16 7.2 Option B: Sheet metal thickness 16 7.3 Option C: AC power and dc relay voltages . 16 7.4 Option D: Terminals, terminal blocks, w
34、ire raceways, and wire bundling 17 ix Copyright 2012 IEEE. All rights reserved. 7.5 Option E: Cooling control switches. 19 7.6 Option F: Annunciator. 20 7.7 Option G: Automatic transfer switch. 20 7.8 Option H: Dead-front cabinet design. 21 7.9 Option I: Visible air gap 21 Annex A (normative) Figure
35、s. 23 Annex B (informative) Forms 34 B.1 Sample ordering form . 34 B.2 Annunciator table and checklist 36 1 Copyright 2012 IEEE. All rights reserved. IEEE Standard for Control Cabinets for Power TransformersIMPORTANT NOTICE: This standard is not intended to ensure safety, security, health, or enviro
36、nmental 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 disclaimer
37、s 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. 1. Overview 1.1 Sco
38、pe This standard will provide minimum and optional function, layout, and construction requirements for standard control cabinet designs. It will also include a coding system for specifying standard control cabinets with the required options. This standard will apply to Class 1 and Class 2 power tran
39、sformers and will not apply to distribution or padmount design transformers. 1.2 Purpose This document will provide users and manufacturers with a set of standard designs that can be easily specified. The document should greatly reduce the engineering time required by manufacturers to create and by
40、users to review control cabinet designs. 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 da
41、ted references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments or corrigenda) applies. IEEE Std C57.148-2011 IEEE Standard for Control Cabinets for Power Transformers 2 Copyright 2012 IEEE. All rights reserved. ANSI/ASM
42、E B1.1, Unified Inch Screw Threads (UN and UNR Thread Form).1ANSI Z55.1, Gray Finishes for Industrial Apparatus and Equipment (R1973).2DIN EN 50022, Specification for low voltage switchgear and control-gear for industrial use. Mounting rails. Top hat rails 35 mm wide for snap-on mounting of equipmen
43、t. IEC Publication 60529, Classification of Degrees of Protection Provided by Enclosures.3IEEE Std C37.2, IEEE Standard for Electrical Power System Device Function Numbers, Acronyms, and Contact Designations.4, 5IEEE Std C57.12.00, IEEE Standard for General Requirements for Liquid-Immersed Distribut
44、ion, Power, and Regulating Transformers. IEEE Std C57.12.10, IEEE Standard Requirements for Liquid-Immersed Power Transformers. ISO 262, ISO General purpose metric screw threads Selected sizes for screws, bolts, and nuts.6NEMA 250, Enclosures for Electrical Equipment (1000 Volts Maximum).7NFPA 70, N
45、ational Electrical Code(NEC).83. Definitions, acronyms, and abbreviations 3.1 Definitions For the purposes of this document, the following terms and definitions apply. The IEEE Standards Dictionary: Glossary of Terms however, copies can be obtained from the Sales Department, American National Standa
46、rds Institute, http:/www.ansi.org/. 3This IEC publication is available from http:/standards.ieee.org/store. 4The IEEE standards or products referred to in this clause are trademarks of the Institute of Electrical and Electronics Engineers, Inc. 5IEEE publications are available at http:/standards.iee
47、e.org/. 6ISO/IEC publications are available at http:/www.iso.org/ or http:/www.ansi.org/. 7This NEMA publication is available at http:/shop.ieee.org/. 8National Electrical Safety Code and NESC are both registered trademarks and service marks of the Institute of Electrical and Electronics Engineers,
48、Inc. 9The IEEE Standards Dictionary: Glossary of Terms & Definitions is available at http:/shop.ieee.org/. IEEE Std C57.148-2011 IEEE Standard for Control Cabinets for Power Transformers 3 Copyright 2012 IEEE. All rights reserved. fluorinated ethylene propylene (FEP): A compound used for wire and ca
49、ble insulation and jackets. ground fault interrupter (GFI): A device commonly used for protection of personnel or some circuits by fast tripping for differential current in the neutral and phase wires of a circuit. machine tool wire: A flexible, stranded wire with a polyvinylchloride (PVC) insulation and jacket compound. manufacturer: The organization that constructs or supplies the device or equipment. piano hinge: A long hinge with one continuous pin, attached along the full available lengths of a door and frame. Also referred to as a continuous hinge. p
