ANSI IEEE 487.5-2013 The Electrical Protection of Communication Facilities Serving Electric Supply Locations Through the Use of Isolation Transformers.pdf

1、 IEEE Standard for the ElectricalProtection of Communication Facilities Serving Electric Supply Locations Through the Use of Isolation Transformers Sponsored by the Power System Communications Committee IEEE 3 Park Avenue New York, NY 10016-5997 USA 3 May 2013 IEEE Power and Energy SocietyIEEE Std 4

2、87.5-2013IEEE Std 487.5-2013 IEEE Standard for the Electrical Protection of Communication Facilities Serving Electric Supply Locations Through the Use of Isolation Transformers Sponsor Power System Communications Committee of the IEEE Power and Energy Society Approved 6 March 2013 IEEE-SA Standards

3、Board Recognized as an American National StandardAbstract: Engineering design procedures for the electrical protection of communication facilities serving electric supply locations through the use of isolation transformers are presented in this standard. These isolation transformers are hard-wired (

4、i.e., have no plug-in units and are not modular). Keywords: electric supply locations, IEEE 487.5, isolation, power stations, protection, transformers, wire-line communications The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, USA Copyright 2013 by T

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18、dity 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 2013 IEEE. All rights reserved. vi Participants At the time this IEEE standard was completed, the Wire-Line

19、 Working Group had the following membership: Percy Pool, Co-Chair Larry Young, Co-Chair and Secretary Ben Bloom Steve Blume Joe Boyles Timothy Conser Bhimesh Dahal Jean de Seve Ernest Duckworth John Fuller Ernest Gallo Dave Hartmann Dan Jendek Richard Knight Randall Mears Mark Tirio Thomas Vo John W

20、ruble The following members of the individual balloting committee voted on this standard. Balloters may have voted for approval, disapproval, or abstention. William Ackerman Roger Avery David Bassett Ron Baysden Steven Bezner Steven Blume Claude Brisson Gustavo Brunello William Byrd Timothy Conser B

21、rian Cramer Ray Davis Ernest Duckworth Frank Gerleve Randall Groves Yuri Khersonsky Richard Knight Joseph L. Koepfinger Jim Kulchisky Marc Lacroix Lawrenc Long Greg Luri Michael Maytum William Mccoy Joseph Mears Daleep Mohla Jerry Murphy Harvey Nerhood Michael S. Newman Charles Ngethe Gary Nissen Lo

22、rraine Padden Donald Parker Percy Pool Jesse Rorabaugh Sergio Santos Bartien Sayogo Gil Shultz Mark Simon David Singleton James Smith Gary Stoedter William Taylor Eric Udren John Vergis Kenneth White James Wilson Larry Young Copyright 2013 IEEE. All rights reserved. vii When the IEEE-SA Standards Bo

23、ard approved this standard on 6 March 2013, it had the following membership: John Kulick, Chair David J. Law, Vice Chair Richard H. Hulett, Past Chair Konstantinos Karachalios, Secretary Masayuki Ariyoshi Peter Balma Farooq Bari Ted Burse Wael William Diab Stephen Dukes Jean-Philippe Faure Alexander

24、 Gelman Mark Halpin Gary Hoffman Paul Houz Jim Hughes Michael Janezic Joseph L. Koepfinger* Oleg Logvinov Ron Petersen Gary Robinson Jon Walter Rosdahl Adrian Stephens Peter Sutherland Yatin Trivedi Phil Winston Yu Yuan *Member Emeritus Also included are the following nonvoting IEEE-SA Standards Boa

25、rd liaisons: Richard DeBlasio, DOE Representative Michael Janezic, NIST Representative Michelle Turner IEEE Standards Program Manager, Document Development Erin Spiewak IEEE Standards Program Manager, Technical Program Development Copyright 2013 IEEE. All rights reserved. viii Introduction This intr

26、oduction is not part of IEEE Std 487.5-2013, IEEE Standard for the Electrical Protection of Communication Facilities Serving Electric Supply Locations Through the Use of Isolation Transformers. Wire-line communication facilities serving electric supply locations often require special high-voltage pr

27、otection against the effects of fault-produced ground potential rise or induced voltages, or both. Some of the telecommunication services are used for control and protective relaying purposes and may be called upon to perform critical operations at times of power system faults. Even when critical se

28、rvices are not involved, special high-voltage protection may be required for both personnel safety and plant protection at times of power system faults. Effective protection of any wire-line telecommunication circuit requires coordinated protection on all circuits provided over the same telecommunic

29、ation cable. This standard presents workable methods for the electrical protection of wire-line communication circuits serving electric supply locations through the use of isolation transformers. This project is part of a reorganization of IEEE Std 487 in which the main document is broken down into

30、a family of related documents (i.e., dot-series) segregated on the basis of technology: IEEE Std 487 IEEE Std 487.1 Metallic Wire-Line IEEE Std 487.2 Optical Fiber Facilities IEEE Std 487.3 Hybrid Facilities IEEE Std 487.4 Neutralizing Transformers IEEE Std 487.5 Isolation Transformers Isolation tra

31、nsformers are considered to be a mature technology. Isolation transformers were used extensively and although there are many still in use today, they are usually no longer provided for new installations. For newer technologies, refer to IEEE Std 487.1, IEEE Std 487.2, and IEEE Std 487.3. This standa

32、rd has been prepared by the Wire-Line Subcommittee of the Power System Communications Committee of the IEEE Power and Energy Society. This standard represents the consensus of both power and communications engineers. Copyright 2013 IEEE. All rights reserved. ix Contents 1. Overview 1 1.1 Background

33、1 1.2 Scope . 2 1.3 Purpose 2 2. Normative references 2 3. Definitions, acronyms, and abbreviations 2 3.1 Definitions . 2 3.2 Acronyms and abbreviations . 3 4. Isolation protection systems . 3 4.1 Isolation transformers 4 4.2 Isolation transformers with drainage transformers 5 4.3 Isolation devices

34、which provide for dc signaling. 5 4.4 High-voltage isolating relays . 6 5. Protection application configurations . 7 5.1 Basic isolation protection configuration 7 Annex A (informative) Bibliography 11 Annex B (informative) Isolation transformers.12 B.1 Typical specifications for isolating and drain

35、age transformers 12 B.2 Typical isolation transformers14 Annex C (informative) Typical specifications for isolation transformers with high-voltage repeating relay assembly 16 C.1 Requirements .16 C.2 Protection .16 Copyright 2013 IEEE. All rights reserved. 1 IEEE Standard for the Electrical Protecti

36、on of Communication Facilities Serving Electric Supply Locations Through the Use of Isolation Transformers IMPORTANT NOTICE: IEEE Standards documents are not intended to ensure safety, health, or environmental protection, or ensure against interference with or from other devices or networks. Impleme

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38、egal disclaimers. These notices and disclaimers 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

39、.org/IPR/disclaimers.html. 1. Overview 1.1 Background Wire-line telecommunication facilities serving electric supply locations often require special high-voltage protection against the effects of fault-produced ground potential rise (GPR) or induced voltages, or both. Some of the telecommunication s

40、ervices are used for control and protective relaying purposes and may be called upon to perform critical operations at times of power system faults. This requirement presents a major challenge in the design and protection of the telecommunication system because power system faults can result in the

41、introduction of interfering voltages and currents into the telecommunication circuit at the very time when the circuit is most urgently required to perform its function. Even when critical services are not involved, special high-voltage protection may be required for both personnel safety and plant

42、protection at times of power system faults. Effective protection of any wire-line telecommunication circuit requires coordinated protection on all circuits provided over the same telecommunication cable. The isolation transformers covered in this standard are hard-wired (i.e., have no plug-in units)

43、 and are not modular. IEEE Std 487.5-2013 IEEE Standard for the Electrical Protection of Communication Facilities Serving Electric Supply Locations Through the Use of Isolation Transformers Copyright 2013 IEEE. All rights reserved. 2 1.2 Scope This standard presents engineering design procedures for

44、 the electrical protection of communication facilities serving electric supply locations through the use of isolation transformers. Other telecommunication alternatives such as radio and microwave systems are excluded from this document. 1.3 Purpose This standard presents workable methods that can b

45、e used with greater reliability to improve the electrical protection of communication facilities serving electric supply locations through the use of isolation transformers. 2. Normative references The following referenced documents are indispensable for the application of this document (i.e., they

46、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.

47、 IEEE Std 367, IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault.1, 2IEEE Std 487, IEEE Recommended Practice for the Protection of Wire-Line Communication Facilities Serving Electric Supply Locations. 3. Definitions, acr

48、onyms, and abbreviations 3.1 Definitions For the purposes of this document, the following terms and definitions apply. The IEEE Standards Dictionary Online should be consulted for terms not defined in this clause.3electric power station: A substation or generating station. electric supply locations:

49、 Any building, separate space, or site in which electric supply equipment is located that may be subjected to the effects of ground potential rise (GPR) from power system fault currents. This definition includes generation, transformation, conversion, switching, and delivery facilities. ground potential rise (GPR): The maximum electrical potential that a substation grounding grid may attain relative to a distant grounding point assumed to be at the potential of remote earth. This voltage, GPR, is equal to the maximum grid current times