1、 IEEE Standard Requirements for Pad-Mounted, Compartmental-Type, Self-Cooled, Three-Phase Distribution Transformers, 10 MVA and Smaller; High-Voltage, 34.5 kV Nominal System Voltage and Below; Low-Voltage, 15 kV Nominal System Voltage and Below Sponsored by the Transformers Committee IEEE 3 Park Ave
2、nue New York, NY 10016-5997 USA IEEE Power and Energy Society IEEE Std C57.12.34-2015 (Revision of IEEE Std C57.12.34-2009) IEEE Std C57.12.34-2015 (Revision of IEEE Std C57.12.34-2009) IEEE Standard Requirements for Pad-Mounted, Compartmental-Type, Self-Cooled, Three-Phase Distribution Transformers
3、, 10 MVA and Smaller; High-Voltage, 34.5 kV Nominal System Voltage and Below; Low-Voltage, 15 kV Nominal System Voltage and Below Sponsor Transformers Committee of the IEEE Power and Energy Society Approved 3 September 2015 IEEE-SA Standards Board Abstract: Certain electrical, dimensional, and mecha
4、nical characteristics are set forth as well as certain safety features of three-phase, 60 Hz, liquid-immersed, self-cooled, pad-mounted, compartmental-type distribution transformers. These transformers are rated 10 MVA and smaller, with the high-voltage limit of 34.5 kV nominal system voltage and be
5、low, and with low-voltage limit of 15 kV nominal system voltage and below. This standard covers the connector, bushing, and terminal arrangements for radial or loop feed systems. This standard does not cover the electrical and mechanical requirements of any accessory devices that may be supplied wit
6、h the transformer. Keywords: compartmental, connector arrangements, loop, pad-mounted, pad-mount distribution transformers, radial, three phase, transformer The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, USA Copyright 2015 by The Institute of Elec
7、trical and Electronics Engineers, Inc. All rights reserved. Published 27 October 2015. Printed in the United States of America. IEEE is a registered trademark in the U.S. Patent fitness for a particular purpose; non-infringement; and quality, accuracy, effectiveness, currency, or completeness of mat
8、erial. In addition, IEEE disclaims any and all conditions relating to: results; and workmanlike effort. IEEE standards documents are supplied “AS IS” and “WITH ALL FAULTS.” Use of an IEEE standard is wholly voluntary. The existence of an IEEE standard does not imply that there are no other ways to p
9、roduce, test, measure, purchase, market, or provide other goods and services related to the scope of the IEEE standard. Furthermore, the viewpoint expressed at the time a standard is approved and issued is subject to change brought about through developments in the state of the art and comments rece
10、ived from users of the standard. In publishing and making its standards available, IEEE is not suggesting or rendering professional or other services for, or on behalf of, any person or entity nor is IEEE undertaking to perform any duty owed by any other person or entity to another. Any person utili
11、zing any IEEE Standards document, should rely upon his or her own independent judgment in the exercise of reasonable care in any given circumstances or, as appropriate, seek the advice of a competent professional in determining the appropriateness of a given IEEE standard. IN NO EVENT SHALL IEEE BE
12、LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO: PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT L
13、IABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE PUBLICATION, USE OF, OR RELIANCE UPON ANY STANDARD, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE AND REGARDLESS OF WHETHER SUCH DAMAGE WAS FORESEEABLE. Translations The IEEE consensus development process involve
14、s the review of documents in English only. In the event that an IEEE standard is translated, only the English version published by IEEE should be considered the approved IEEE standard. Official statements A statement, written or oral, that is not processed in accordance with the IEEE-SA Standards Bo
15、ard Operations Manual shall not be considered or inferred to be the official position of IEEE or any of its committees and shall not be considered to be, or be relied upon as, a formal position of IEEE. At lectures, symposia, seminars, or educational courses, an individual presenting information on
16、IEEE standards shall make it clear that his or her views should be considered the personal views of that individual rather than the formal position of IEEE. Comments on standards Comments for revision of IEEE Standards documents are welcome from any interested party, regardless of membership affilia
17、tion with IEEE. However, IEEE does not provide consulting information or advice pertaining to IEEE Standards documents. Suggestions for changes in documents should be in the form of a proposed change of text, together with appropriate supporting comments. Since IEEE standards represent a consensus o
18、f concerned interests, it is important that any responses to comments and questions also receive the concurrence of a balance of interests. For this reason, IEEE and the members of its societies and Standards Coordinating Committees are not able to provide an instant response to comments or question
19、s except in those cases where the matter has previously been addressed. For the same reason, IEEE does not respond to interpretation requests. Any person who would like to participate in revisions to an IEEE standard is welcome to join the relevant IEEE working group. Comments on standards should be
20、 submitted to the following address: Secretary, IEEE-SA Standards Board 445 Hoes Lane Piscataway, NJ 08854 USA Laws and regulations Users of IEEE Standards documents should consult all applicable laws and regulations. Compliance with the provisions of any IEEE Standards document does not imply compl
21、iance to any applicable regulatory requirements. Implementers of the standard are responsible for observing 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 docu
22、ments may not be construed as doing so. Copyrights IEEE draft and approved standards are copyrighted by IEEE under U.S. and international copyright laws. They are made available by IEEE and are adopted for a wide variety of both public and private uses. These include both use, by reference, in laws
23、and regulations, and use in private self-regulation, standardization, and the promotion of engineering practices and methods. By making these documents available for use and adoption by public authorities and private users, IEEE does not waive any rights in copyright to the documents. Photocopies Su
24、bject to payment of the appropriate fee, IEEE will grant users a limited, non-exclusive license to photocopy portions of any individual standard for company or organizational internal use or individual, non-commercial use only. To arrange for payment of licensing fees, please contact Copyright Clear
25、ance Center, Customer Service, 222 Rosewood Drive, Danvers, MA 01923 USA; +1 978 750 8400. Permission to photocopy portions of any individual standard for educational classroom use can also be obtained through the Copyright Clearance Center. Updating of IEEE Standards documents Users of IEEE Standar
26、ds documents 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 issuance of amendments, corrigenda, or errata. An official IEEE document at any point in time consists of the current edition of the documen
27、t together with any amendments, corrigenda, or errata then in effect. Every IEEE standard is subjected to review at least every ten years. When a document is more than ten years old and has not undergone a revision process, it is reasonable to conclude that its contents, although still of some value
28、, do not wholly reflect the present state of the art. Users are cautioned to check to determine that they have the latest edition of any IEEE standard. In order to determine whether a given document is the current edition and whether it has been amended through the issuance of amendments, corrigenda
29、, or errata, visit the IEEE-SA Website at http:/ieeexplore.ieee.org/xpl/standards.jsp or contact IEEE at the address listed previously. For more information about the IEEE SA or IEEEs standards development process, visit the IEEE-SA Website at http:/standards.ieee.org. Errata Errata, if any, for all
30、 IEEE standards can be accessed on the IEEE-SA Website at the following URL: http:/standards.ieee.org/findstds/errata/index.html. Users are encouraged to check this URL for errata periodically. Patents Attention is called to the possibility that implementation of this standard may require use of sub
31、ject matter covered by patent rights. By publication of this standard, no position is taken by the IEEE with respect to the existence or validity of any patent rights in connection therewith. If a patent holder or patent applicant has filed a statement of assurance via an Accepted Letter of Assuranc
32、e, then the statement is listed on the IEEE-SA Website at http:/standards.ieee.org/about/sasb/patcom/patents.html. Letters of Assurance may indicate whether the Submitter is willing or unwilling to grant licenses under patent rights without compensation or under reasonable rates, with reasonable ter
33、ms and conditions that are demonstrably free of any unfair discrimination to applicants desiring to obtain such licenses. Essential Patent Claims may exist for which a Letter of Assurance has not been received. The IEEE is not responsible for identifying Essential Patent Claims for which a license m
34、ay be required, for conducting inquiries into the legal 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
35、 this standard 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. Copyright 2015 IEEE. All rights reserved. vi Parti
36、cipants At the time this IEEE standard was completed, the Subcommittee on Distribution Transformers, Three-Phase, Pad-Mounted Working Group had the following membership: Ronald Stahara, Chair Stephen Shull, Vice Chair Timothy Albers Dave Allaway James Antweiler James Armstrong Kahveh Atef Adam Broml
37、ey Brent Cain Thomas Callsen Todd Carlson Cheng Cheng John Chisholm Michael Faulkenberry Marcel Fortin Carlos Gaytan Jose Gamboa Ali Ghafourian Said Hachichi Michael Hardin Gael Kennedy Gary King Brian Klaponski Terence Martin Michael Miller Charles Morgan Daniel Mulkey Jerry Murphy Gerald Paiva Dwi
38、ght Parkinson Justin Pezzin Martin Rave John Rossetti Juan Saldivar Jeffrey Schneider Charles Simmons Edward Smith Christopher Sullivan Giuseppe Termini Alan Traut Donnie Trivitt Alan WilksThe following members of the individual balloting committee voted on this standard. Balloters may have voted fo
39、r approval, disapproval, or abstention. Samuel Aguirre James Antweiler Donald Ayers Roy Ayers Peter Balma Barry Beaster Steven Bezner Wallace Binder Thomas Bishop Thomas Blackburn Carl Bush William Byrd Thomas Callsen Paul Cardinal Kurt Clemente John Crouse Ray Davis Dieter Dohnal Gary Donner Randal
40、l Dotson Michael Edds Michael Faulkenberry Jorge Fernandez Daher Bruce Forsyth Marcel Fortin Fredric Friend Jean-Francois Gagnon Robert Ganser Carlos Gaytan Frank Gerleve Ali Ghafourian David Gilmer Jalal Gohari James Graham Randall Groves Ajit Gwal Said Hachichi Jeffrey Hartenberger Joshua Herz Phi
41、lip Hopkinson John Houdek Mohammad Iman Richard Jackson Charles Johnson Gael Kennedy Sheldon Kennedy Gary King Axel Kraemer Jim Kulchisky John Lackey Chung-Yiu Lam Aleksandr Levin Lee Matthews William McBride Mark McNally Charles Morgan Daniel Mulkey Jerry Murphy K. R. M. Nair Dennis Neitzel Arthur
42、Neubauer Michael Newman Raymond Nicholas Robert Olen Tim Olson Dwight Parkinson Bansi Patel Wesley Patterson Christopher Petrola Alvaro Portillo Martin Rave Michael Roberts Charles Rogers Oleg Roizman Jesse Rorabaugh Thomas Rozek Daniel Sauer Bartien Sayogo Stephen Schroeder Stephen Shull Hyeong Sim
43、 Charles Simmons Jerry Smith Steve Snyder Ronald Stahara David Stankes Michael Swearingen David Tepen James Thompson Robert Thompson Alan Traut John Vergis Kenneth White Alan Wilks William Wimmer Jennifer Yu Jian Yu Peter Zhao Copyright 2015 IEEE. All rights reserved. vii When the IEEE-SA Standards
44、Board approved this standard on 3 September 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 Mich
45、ael 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. viii I
46、ntroduction This introduction is not part of IEEE Std C57.12.34-2015, IEEE Standard Requirements for Pad-Mounted, Compartmental-Type, Self-Cooled, Three-Phase Distribution Transformers, 10 MVA and Smaller; High-Voltage, 34.5 kV Nominal System Voltage and Below; Low-Voltage, 15 kV Nominal System Volt
47、age and Below. This standard was first published in 2004, and was a revision and combination ANSI Std C57.12.22-1993 American National Standard for TransformersPad-Mounted, Compartmental-Type, Self-Cooled Three-Phase Distribution Transformers with High-Voltage Bushings, 2500 kVA and Smaller: High Vo
48、ltage, 34 500 Grd Y/19 920 Volts and Below; Low Voltage, 480 Volts and BelowRequirements; and IEEE Std C57.12.26-1992 IEEE Standard for Pad-Mounted, Compartmental-Type, Self-Cooled, Three-Phase Distribution Transformers for Use with Separable Insulated High-Voltage Connectors (34 500 Grd Y/19 920 V
49、and Below; 2500 kVA and Smaller). This resulted in a single standard that brought together pad-mounted transformers with either high-voltage bushing or separable connectors. In 2009, the standard was revised and two significant changes to the scope were made. First, the size of units were increased to 5 MVA, and second the low-voltage rating was changed from 480 V and below to 15 kV and below. This facilitated the development of standard requirements for pad-mounted transformers that could be used for step-down as well as distribution service and required substantial updat
