1、 IEEE Std C37.20.6-2015 (Revision of IEEE Std C37.20.6-2007) IEEE Standard for 4.76 kV to 38 kV Rated Ground and Test Devices Used in Enclosures Sponsor Switchgear Committee of the IEEE Power and Energy Society Approved 16 February 2015 IEEE-SA Standards Board Abstract: Drawout-type ground and test
2、devices for use in medium-voltage metal-clad switchgear rated 4.76 kV through 38 kV are covered. The description, design, and testing of these accessory devices that are inserted in place of drawout circuit breakers for the purpose of grounding and testing are also covered. Keywords: electrical oper
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31、heir own responsibility. Further information may be obtained from the IEEE Standards Association. Copyright 2015 IEEE. All rights reserved. vi Participants At the time this IEEE standard was completed, the SASC-IEEE Standard for 4.76 kV to 38 kV Rated Ground and Test Devices Used in Enclosures Worki
32、ng Group had the following membership: T. W. Olsen, Chair Ted Burse, Vice Chair Paul Barnhart Douglas J. Edwards Keith Flowers Paul Green Albert Livshitz Michael Sigmon Paul Sullivan John Webb Matthew WillifordThe following members of the individual balloting committee voted on this standard. Ballot
33、ers may have voted for approval, disapproval, or abstention. Paul Barnhart W. J. (Bill) Bergman William Bloethe Ted Burse Eldridge Byron Paul Cardinal Stephen Cary Robert Cohn Ray Davis Gary Donner Edgar Dullni Donald Dunn Douglas J. Edwards Donald Elliott Ronald Esco Keith Flowers Paul Forquer Fran
34、k Gerleve Paul Gingrich S. Gohil Edwin Goodwin James Graham Paul Grein Randall Groves Ajit Gwal Paul Hamer Jeff Hanson Reid Herzog Dan Hrncir Andrew Jones Harry Josten Yuri Khersonsky Boris Kogan Jim Kulchisky Saumen Kundu Chung-Yiu Lam Albert Livshitz R. Long Charles Morse Jerry Murphy Michael Newm
35、an Joe Nims George Nourse T. W. Olsen Lorraine Padden Amit Patel Anthony Picagli Julian Profir Anthony Ricciuti Michael Roberts Bartien Sayogo Hamid Sharifnia Devki Sharma Michael Sigmon James Smith Jerry Smith Paul Sullivan James Swank Donald Swing C. Tailor David Tepen Dennis Thonsgard Wayne Timm
36、Marcelo Valdes John Vergis John Webb Kenneth White Terry Woodyard Larry Yonce Matthew Zeedyk Copyright 2015 IEEE. All rights reserved. vii When the IEEE-SA Standards Board approved this standard on 16 February 2015, it had the following membership: John Kulick, Chair Jon Walter Rosdahl, Vice Chair R
37、ichard H. Hulett, Past Chair Konstantinos Karachalios, Secretary Peter Balma Farooq Bari Ted Burse Clint Chaplin Stephen Dukes Jean-Philippe Faure Gary Hoffman Michael Janezic Jeffrey Katz Joseph L. Koepfinger* David J. Law Hung Ling Oleg Logvinov T. W. Olsen Glenn Parsons Ron Peterson Adrian Stephe
38、ns Peter Sutherland Yatin 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 Penny Stanton IEEE-SA Content Production and Management Erin Spiewa
39、k IEEE-SA Technical Program Operations Copyright 2015 IEEE. All rights reserved. viii Introduction This introduction is not part of IEEE Std C37.20.6-2015, IEEE Standard for 4.76 kV to 38 kV Rated Ground and Test Devices Used in Enclosures. Although ground and test (G and may be used to demonstrate
40、compliance with applicable standards of the industry. Syn: type tests. ground and test (G and the peak current value shall be 2.6 times the rated short-time withstand current at the major peak of the maximum cycle; as determined from the envelope of the current wave. The closing and latching current
41、 capability of an electrically operated G&T device shall be no less than the rated closing and latching current capability of the circuit breaker it is intended to replace. Refer to IEEE Std C37.04. NOTESome regulations may require that closing and latching current be stated in rms asymmetrical (tot
42、al) current, and this value may be calculated as 1.55 times the rated short-time current (for 60 Hz), and shall be shown separately on the nameplate (see 6.5). 7Notes in text, tables, and figures of a standard are given for information only and do not contain requirements needed to implement this st
43、andard. IEEE Std C37.20.6-2015 IEEE Standard for 4.76 kV to 38 kV Rated Ground and Test Devices Used in Enclosures Copyright 2015 IEEE. All rights reserved. 6 6. Functional components The functional components required for manual and electrical G&T devices are listed in Table 1. Additional accessory
44、 devices may be available, and the manufacturer should be consulted for specific information. 6.1 Power-operated ground-making switch position indicator Each G&T device equipped with a power-operated ground-making switch shall have an indicator visible from the front of the device when installed in
45、the enclosure to show the closed and open position of the power-operated ground-making switch. The following colors shall be used: a) Red background with the words CLOSED-GROUNDED in contrasting color to indicate closed contacts b) Green background with the words OPEN-UNGROUNDED in contrasting color
46、 to indicate open contacts 6.2 Terminal selector switch and position indicator The manually operated terminal selector switch provides the ability to connect the power-operated ground-making switch to either terminal set (or neutral position if provided). The terminal selector switch position shall
47、be able to be changed only when the G&T device is fully removed from the enclosure, and means for visual verification of the terminal switch position shall be provided. A position indicator, visible from the front when the device is installed in the enclosure, shall show which terminal set has been
48、selected (including the neutral position if provided). For complex manual G&T devices having terminal selector switch(es) and without power-operated ground making switch, operation of the terminal selector switch(es) is allowed inside the enclosure. Table 1 Functional components Functional component
49、 Device type Simple manual Complex manual Simple electrical Complex electrical One terminal set a X X X - Two terminal sets a X b X b - X Ground cable and connectors (see 8.3) X - - - Ground connection system X X X X Test ports - - X b X b Test probes - - X b X b Power-operated making switch - - X X Ground-making switch position indicator (see 6.1) - - X X Manual opening release - - X X Remote electrical control (see 8.4) - - X X Electrical opening release (see 8.4) - - X b X b Stored energy indicator (see 6.3) - - X c X c Manually ope
