IEEE C57 12 52-2012 en Sealed Dry-Type Power Transformers 501 kVA and Higher Three-Phase with High-Voltage 601 to 34500 Volts Low-Voltage 208Y 120 to 4160 Volts.pdf

1、 IEEE Standard for Sealed Dry-Type Power Transformers, 501 kVA and Higher, Three-Phase, with High-Voltage 601 to 34500 Volts, Low-Voltage 208Y/120 to 4160 VoltsGeneral Requirements Sponsored by the Transformers Committee IEEE 3 Park Avenue New York, NY 10016-5997 USA 1 March 2013 IEEE Power and Ener

2、gy SocietyIEEE Std C57.12.52-2012IEEE Std C57.12.52-2012 IEEE Standard for Sealed Dry-Type Power Transformers, 501 kVA and Higher, Three-Phase, with High-Voltage 601 to 34500 Volts, Low-Voltage 208Y/120 to 4160 VoltsGeneral Requirements Sponsor Transformers Committee of the IEEE Power and Energy Soc

3、iety Approved 5 December 2012 IEEE-SA Standards Board Abstract: Characteristics relating to performance, limited electrical and mechanical interchangeability, and guidance to assist in the proper selection of sealed dry-type transformers are provided in this standard. Specific rating combinations ar

4、e described in the range from 750 to 5000 kVA inclusive, with high-voltage 2400 to 34500 Volts inclusive and low-voltage 208Y/120 to 4160 Volts inclusive. Sealed dry-type power transformers filled with only dry air or nitrogen, at the time of filling, are considered. Other gases are not considered i

5、n this standard. This standard does not apply to other types of transformers, such as specialty, ventilated dry-type, pad-mounted dry-type, liquid immersed, instrument, regulating, furnace, mine, and rectifier transformers. Keywords: ambient temperature, BIL, construction, current transformer, dry a

6、ir, dry-type, electrical, gas, GA, grounding, IEEE C57.12.52, insulation level, jacking, limiting temperature, mechanical, nitrogen, percent impedance voltage, performance, rating, sealed dry-type power transformers, self-cooled, surge arresters, taps, temperature rise, tests, transformer, transform

7、er tank, unit substation, winding temperature The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, USA Copyright 2013 by the Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Published 1 March 2013. Printed in the United State

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21、013 IEEE. All rights reserved. Introduction This introduction is not part of IEEE Std C57.12.52-2012, IEEE Standard for Sealed Dry-Type Power Transformers, 501 kVA and Higher, Three-Phase, with High-Voltage 601 to 34500 Volts, Low-Voltage 208Y/120 to 4160 VoltsGeneral Requirements. This dry-type tra

22、nsformer standard describes sealed dry-type transformers with self-cooled kilovolt-ampere ratings 501 to 5000 and high voltages 601 to 34 500 volts. This standard is the result of an effort encompassing the interests of users, manufactures, and others dedicated to developing voluntary consensus stan

23、dards primarily for dry-type transformers. The gases used to fill sealed dry type transformers covered by this standard are limited to dry air and nitrogen at the time of filling, as this is present industry practice in North America. Previous versions of this standard dealt with other gases that ar

24、e no longer used. IEC 60076-15, International Standard Power transformersPart 15 Gas-filled power transformers deals with gases not covered in this standard, such as sulfur hexafluoride SF6. This gas is also not used in industry practice in North America. The copyright of this standard has been tran

25、sferred from NEMA to IEEE. This standard is a voluntary consensus standard. Its use is mandatory only when required by a duly constituted legal authority or when specified in a contractual relationship. To meet specialized needs and to allow innovation, specific changes are permissible when mutually

26、 determined by the user and the producer, provided such changes do not violate existing laws and are considered technically adequate for the function intended. When this document is used on a mandatory basis, the word “shall” indicates mandatory requirements, and the words “should” and “may” refer t

27、o matters that are recommended and permissive, respectively, but not mandatory. vi Copyright 2013 IEEE. All rights reserved. Participants At the time this standard was submitted to the IEEE-SA Standards Board for approval, the Sealed Dry Type Power Transformers Working Group had the following member

28、ship: Sheldon P. Kennedy, Chair Robert C. Ballard Ray Bartnikas Gene Blackburn Carl Bush Yunxiang Chen Henry B. Cooke Derek Foster Timothy Holdway Charles W. Johnson, Jr. Sheldon P. Kennedy Jerry Murphy Martin Navarro Dhiru Patel Mangesh Rajadhyaksha Leslie Recksiedler Subhas Sarkar Hemchandra Shert

29、ukde Sanjib Som R. William Simpson, Jr. Roger Wicks Peter Zhao The following members of the individual balloting committee voted on this standard. Balloters may have voted for approval, disapproval, or abstention. Sattish Aggarwal Samuel Aguirre Robert C. Ballard Peter Balma Steven Bezner Wallace Bi

30、nder Thomas Bishop Thomas Blackburn William Bloethe Chris Brooks William Byrd Kurt Clemente Preston Cooper John Crouse Glenn Davis Matthew Davis Gary Donner Donald Dunn Gary Engmann Dan Evans Jorge Fernandez Daher Joseph Foldi Marcel Fortin Derek Foster Rostyslaw Fostiak Mietek Glinkowski Jalal Goha

31、ri James Graham Randall Groves Timothy Hayden Jeffrey Helzer Lee Herron Gary Heuston Philip Hopkinson John Houdek Charles W. Johnson, Jr. Andrew Jones Chad Kennedy Sheldon P. Kennedy Yuri Khersonsky Jospeh L. Koepfinger Boris Kogan Jim Kulchisky Saumen Kundu John Lackey Chung-Yiu Lam Benjamin Lanz A

32、leksandr Levin Albert Livshitz Greg Luri Richard Marek William McBride Daniel Mulkey Jerry Murphy K. R. M. Nair Michael S. Newman Raymond Nicholas Lorraine Padden Bansi Patel Christopher Petrola Alvaro Portillo Lewis Powell Iulian Profir John Roach Michael Roberts Marnie Roussell Thomas Rozek Bartie

33、n Sayogo Robert Seitz James Smith Jerry Smith Gary Stoedter David Tepen Gerald Vaughn John Vergis Jane Verner Kenneth White Matthew Wilkowski Jian Yullotervii Copyright 2013 IEEE. All rights reserved. When the IEEE-SA Standards Board approved this standard on 5 December 2012, it had the following me

34、mbership: Richard H. Hulett, Chair John Kulick, Vice Chair Robert M. Grow, Past Chair Konstantinos Karachalios, Secretary Satish Aggarwal Masayuki Ariyoshi Peter Balma William Bartley Ted Burse Clint Chaplin Wael William Diab Jean-Philippe Faure Alexander Gelman Paul Houz Jim Hughes Young Kyun Kim J

35、oseph L. Koepfinger* David J. Law Thomas Lee Hung Ling Oleg Logvinov Ted Olsen Gary Robinson Jon Walter Rosdahl Mike Seavey Yatin Trivedi Phil Winston Yu Yuan* Member Emeritus Also included are the following nonvoting IEEE-SA Standards Board liaisons: Richard DeBlasio, DOE Representative Michael Jan

36、ezic, NIST Representative Catherine Berger IEEE Standards Senior Program Manager, Document Development Erin Spiewak IEEE Standards Program Manager, Technical Program Development viii Copyright 2013 IEEE. All rights reserved. Contents 1. Overview 1 1.1 Scope . 1 1.2 Purpose 2 2. Normative references

37、2 3. Abbreviations . 2 4. Usual service conditions . 2 5. Ratings and characteristics . 3 5.1 Kilovolt-ampere ratings . 3 5.2 Kilovolt-ampere and voltage ratings 3 5.3 Taps . 3 5.4 Insulation levels . 3 5.5 Angular displacement and terminal markings . 4 5.6 Percent impedance voltage 4 6. Constructio

38、n . 5 6.1 Insulation system . 5 6.2 Accessory location . 5 6.3 Nameplate 5 6.4 Transformer connections . 6 6.5 Tap changer . 7 6.6 Temperature indication 7 6.7 Pressure-vacuum gage . 8 6.8 Shutoff valve 8 6.9 Filling valve . 8 6.10 Tank . 9 7. Routine tests . 10 8. Tolerances 10 9. Other ratings and

39、 characteristics . 11 9.1 Other ambient temperature conditions . 11 9.2 Other winding temperature rises 11 9.3 Other insulation systems 11 9.4 Other high-voltage ratings and connections 11 9.5 Y-Y connected transformers 12 9.6 Increased neutral insulation . 13 9.7 Other basic lightning impulse insul

40、ation levels (BILs) . 13 10. Other construction 13 10.1 Surge arresters . 13 10.2 Unit substation applications . 13 10.3 Pressure alarm switch 14 10.4 High-temperature alarm switch . 14 10.5 Current transformers (or provision for their addition in the future) . 14 10.6 Terminal blocks . 14 11. Other

41、 tests . 15 Annex A (informative) Bibliography . 16 1 Copyright 2013 IEEE. All rights reserved. IEEE Standard for Sealed Dry-Type Power Transformers, 501 kVA and Higher, Three-Phase, with High-Voltage 601 to 34500 Volts, Low-Voltage 208Y/120 to 4160 VoltsGeneral Requirements IMPORTANT NOTICE: IEEE S

42、tandards documents are not intended to ensure safety, health, or environmental protection, or ensure 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, environmenta

43、l, health, and interference protection practices and all applicable laws and regulations. This IEEE 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 head

44、ing “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 Scope This standard is for sealed dry-type transformers, 501 kVA and larger, with high-v

45、oltage 601 to 34500 volts inclusive and low-voltage 208Y/120 to 4160 volts inclusive. This standard is intended to set forth characteristics relating to performance, limited electrical and mechanical interchangeability, and to assist in the proper selection of such equipment. This standard does not

46、apply to other types of transformers, such as specialty, ventilated dry-type, pad-mounted dry-type, liquid immersed, instrument, regulating, furnace, mine, and rectifier operations. IEEE Std C57.12.52-2012 IEEE Standard for Sealed Dry-Type Power Transformers, 501 kVA and Higher, Three-Phase, with Hi

47、gh-Voltage 601 to 34500 Volts, Low-Voltage 208Y/120 to 4160 VoltsGeneral Requirements 2 Copyright 2013 IEEE. All rights reserved. 1.2 Purpose This standard describes certain electrical and mechanical characteristics of 60-Hz, two-winding, three-phase, sealed dry-type transformers rated 501 kVA and l

48、arger, generally used for step down purposes. This standard will accomplish this by presenting basic electrical and mechanical requirements and describing other requirements or alternatives that may be specified for some applications. 2. Normative references The following referenced documents are in

49、dispensable 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. IEEE Std C57.12.01-2005, IEEE Standard for General Requirements for Dry-Type Distribution and Power Transformers Including Those with Solid-Cast and/or Resin Encapsulated Windings.1,2IEEE Std C57.12.70,