1、 IEEE Standard Requirements for Secondary Network Protectors Sponsored by the Transformers Committee IEEE 3 Park Avenue New York, NY 10016-5997 USA IEEE Power and Energy Society IEEE Std C57.12.44-2014 (Revision of IEEE Std C57.12.44-2005) IEEE Std C57.12.44-2014 (Revision of IEEE Std C57.12.44-2005
2、) IEEE Standard Requirements for Secondary Network Protectors Sponsor Transformers Committee of the IEEE Power and Energy Society Approved 27 March 2014 IEEE-SA Standards Board Abstract: The performance, electrical and mechanical interchangeability, and the safety of the equipment are covered. The p
3、roper selection of such equipment is established as a basis for use in this standard. Certain electrical, dimensional, and mechanical characteristics are described; and certain safety features of three-phase, 60 Hz, low-voltage (600 V and below) network protectors are taken into consideration. This
4、equipment is used for automatically connecting and disconnecting a network transformer from a secondary spot or grid network. Keywords: grid network, IEEE C57.12.44, network, protector, spot network The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, U
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34、014 IEEE. All rights reserved. vi Participants At the time this IEEE standard was completed, the Network Protectors Working Group had the following membership: William Wimmer, Co-Chair Mark Faulkner, Co-Chair Edward Bertolini Joseph Cultrera Cory Morgan Daniel Mulkey Carl Niemann Kenneth Romano Terr
35、y Turvey Other individuals who participated in the revision are as follows: Douglas Craig Larry Dix The following members of the individual balloting committee voted on this standard. Balloters may have voted for approval, disapproval, or abstention. William Ackerman Satish Aggarwal Carlo Arpino Ada
36、m Bagby Peter Balma Edward Bertolini Wallace Binder Thomas Blackburn Chris Brooks William Bush Paul Cardinal Stephen Conrad John Crouse Chuanyou Dai Randall Dotson Brian Escott Mark Faulkner David Gilmer Jalal Gohari James Graham Randall C. Groves John Harley J. Harlow Jeffrey Hartenberger Timothy H
37、ayden Jeffrey Helzer Philip Hopkinson Laszlo Kadar Yuri Khersonsky James Kinney Jim Kulchisky Chung-Yiu Lam Deni Lee Greg Luri Bruce Mackie Richard Marek Nigel Mcquin John Miller Charles Morgan Daniel Mulkey Daniel Mungovan Michael Newman Charles Ngethe Carl Niemann Lorraine Padden Bansi Patel Wesle
38、y Patterson Alvaro Portillo Peter Risse Michael Roberts Charles Rogers Kenneth Romano John Rossetti Marnie Roussell Bartien Sayogo Gil Shultz Veselin Skendzic James Smith Jerry Smith Gary Stoedter John Sullivan John Teixeira David Tepen Sylvester Toe Joe Uchiyama Eric Udren John Vergis Jane Verner C
39、arl Wall Lee Welch Kenneth White James Wilson William Wimmer Daidi Zhong Copyright 2014 IEEE. All rights reserved. viiWhen the IEEE-SA Standards Board approved this standard on 27 March 2014, it had the following membership: John Kulick, Chair Jon Walter Rosdahl, Vice-chair Richard H. Hulett, Past C
40、hair Konstantinos Karachalios, Secretary Peter Balma Farooq Bari Ted Burse Clint Chaplain Stephen Dukes Jean-Phillippe Faure Gary Hoffman Michael Janezic Jeffrey Katz Joseph L. Koepfinger* David J. Law Hung Ling Oleg Logvinov Ted Olsen Glenn Parsons Ron Peterson Adrian Stephens Peter Sutherland Yati
41、n Trivedi Phil Winston Don Wright Yu Yuan *Member Emeritus Also included are the following nonvoting IEEE-SA Standards Board liaisons: Richard DeBlasio, DOE Representative Michael Janezic, NIST Representative Don Messina IEEE-SA Content Publishing Erin Spiewak IEEE-SA Standards Technical Community C
42、opyright 2014 IEEE. All rights reserved. viii Introduction This introduction is not part of IEEE Std C57.12.44-2014, IEEE Standard for Requirements for Secondary Network Protectors. This is the third revision of IEEE Std C57.12.44, which was originally published in 1994. The main purpose of this rev
43、ision was to make changes as required to improve the standard. The revision officially started with IEEE Project Authorization Request approval on June 17, 2010. The revision was accomplished by the Standard Requirements for Secondary Network Protectors Working Group under the Underground Transforme
44、rs and Network Protectors Subcommittee of the IEEE Power and Energy Society (PES) Transformers Committee. A task force consisting of EEI, National Electrical Manufacturers Association (NEMA), and IEEE PES delegates developed the original document. The first working group meeting was held 24 February
45、 1988, in Washington, DC. The document was completed in late 1994 by the Working Group on Requirements for Secondary Network Protectors under the Underground Transformers and Network Protectors Subcommittee of the IEEE PES Transformers Committee. R. B. Robertson chaired the Working Group during the
46、preparation and balloting of the original standard. This IEEE standard is a voluntary consensus standard. Its use becomes 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 ch
47、anges are permissible when mutually determined by the user and the producer, provided such changes do not violate existing laws and are considered technically adequate for the function intended. Copyright 2014 IEEE. All rights reserved. ix Contents 1. Overview 1 1.1 Scope . 1 1.2 Purpose 1 1.3 Word
48、usage 1 2. Normative references 2 3. Definitions 2 4. Service conditions 4 4.1 Usual service conditions 4 4.2 Unusual service conditions 4 5. Design tests . 5 5.1 Continuous current thermal test . 5 5.2 Electrical tests 7 5.3 Mechanical endurance test 11 6. Production tests .12 6.1 Operational tests
49、 .12 6.2 Dielectric tests 13 6.3 Insulation resistance tests .14 6.4 Current path resistance tests .15 6.5 Mechanical tests .15 7. Relay characteristics 16 7.1 General .16 7.2 Automatic close functions 16 7.3 Automatic trip functions .17 7.4 Tripping adjustment 18 8. Fuses and fuse mountings 19 8.1 Fuse provisions .19 8.2 Functional performance specifications .21 8.3 Fuse types .21 9. Rating requirements .21 9.1 Nameplates .21 9.2 Interrupting rating .22 9.3 AC voltage ratings 22 9.4 Dielectric test voltage .23 9.5 Control voltage .23 9.6 Closing voltage .23 9.7 Tripping cu
