1、IEEE Std C37.66-2005(Revision ofANSI C37.66-1969)IEEE Standard Requirements forCapacitor Switches for AC Systems (1 kV to 38 kV)I E E E3 Park Avenue New York, NY10016-5997, USA22 March 2006IEEE Power Engineering SocietySponsored by theSwitchgear CommitteeRecognized as an IEEE Std C37.66-2005 America
2、n National Standard (ANSI) (Revision of ANSI C37.66-1969) IEEE Standard Requirements for Capacitor Switches for AC Systems (1 kV to 38 kV) Sponsor Switchgear Committee of the IEEE Power Engineering Society Approved 1 February 2006 American National Standards Institute Approved 22 September 2005 IEEE
3、-SA Standards Board Abstract: Required definitions, ratings, and procedures for performing design tests, production tests, and construction requirements for capacitor switches for ac systems from 1 kV to 38 kV are covered. Keywords: back-to-back capacitor switching, capacitor load, capacitor switche
4、s, inrush current, operation, pole discrepancy, probability of restrike classification, restrike, simultaneous operation _ The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, USA Copyright 2006 by the Institute of Electrical and Electronics Engineers,
5、Inc. All rights reserved. Published 22 March 2006. Printed in the United States of America. IEEE is a registered trademark in the U.S. Patent +1 978 750 8400. Permission to photocopy portions of any individual standard for educational classroom use can also be obtained through the Copyright Clearanc
6、e Center. Introduction This introduction is not part of IEEE Std C37.66-2005, IEEE Standard Requirements for Capacitor Switches for AC Systems (1 kV to 38 kV). This standard has been revised and updated from the 1969 version of ANSI C37.66-1969 (R1982), incorporating significant improvements that re
7、flect present capacitor switch technology. These improvements include changes and additions in the following areas: a) b) c) d) e) f) g) Inclusion of solid and gas insulated switches Expansion of the ratings data through 38 kV Creation of probability of restrike classifications C2, C1, and C0 Additi
8、on of Annex A (informative)Fault handling ratings for capacitor switches Addition of Annex B (informative)Consideration of inrush current in back-to-back capacitor switching Addition of Annex C (informative)Simultaneous opening of single-phase capacitor switches on ungrounded wye capacitor installat
9、ions Addition of Annex D (informative)Altitude correction factors Notice to users Errata Errata, if any, for this and all other standards can be accessed at the following URL: http:/ standards.ieee.org/reading/ieee/updates/errata/index.html. Users are encouraged to check this URL for errata periodic
10、ally. Interpretations Current interpretations can be accessed at the following URL: http:/standards.ieee.org/reading/ieee/interp/ index.html. Patents Attention is called to the possibility that implementation of this standard may require use of subject matter covered by patent rights. By publication
11、 of this standard, no position is taken with respect to the existence or validity of any patent rights in connection therewith. The IEEE shall not be responsible for identifying patents or patent applications for which a license may be required to implement an IEEE standard or for conducting inquiri
12、es into the legal validity or scope of those patents that are brought to its attention. Copyright 2006 IEEE. All rights reserved. ivParticipants At the time this standard was completed, the Capacitor Switches Working Group had the following membership: Harold J. Hirz, Chair Robert Behl Frank DeCesar
13、o Marcel Fortin William Hurst Mark McVey Carl Reigart Kirk Smith Mel Smith John St. Clair Edward Steele David Stone John Wood Elbert Worland Jan Zawadzki The following members of the balloting committee voted on this standard. Balloters may have voted for approval, disapproval, or abstention. Donald
14、 Akers Roy Alexander Chris Ambrose John Angelis Edwin Averill Shankha Basu Behdad Biglar Thomas Blair Anne Bosma Harvey Bowles Raymond Capra Tommy Cooper R. Daubert Byron Davenport Larry Davis Frank DeCesaro James Domo Randall Dotson Denis Dufournet Amir El-Sheikh Gary Engmann Marcel Fortin Mietek G
15、linkowski Randall Groves John E. Harder Ian Harvey Harold Hirz Edward Horgan, Jr. George House William Hurst Robert Jeanjean Joseph L. Koepfinger David Krause Thomas LaRose John Leach George N. Lester Jason Lin Jeffrey Lord Gregory Luri Jose E. Mattei Neil McCord Nigel McQuin Gary Michel Alec Monroe
16、 Georges Montillet Peter Morgan Frank Muench Jeffrey Nelson T. W. Olsen Thomas Pekarek Radhakrishnan Ranjan Radharishna Rebbapragada Joseph Rostron Timothy Royster James Ruggieri Surya Santoso Devki Sharma H. M. Smith James Smith John St. Clair Allan St. Peter David Stone Stanton Telander Michael To
17、ney Joseph Tumidajski Waldemar Von Miller Charles Wagner Steven Whalen James Wilson John Wood Elbert Worland Jan Zawadzki Copyright 2006 IEEE. All rights reserved. vWhen the IEEE-SA Standards Board approved this standard on 22 September 2005, it had the following membership: Steve M. Mills, Chair Ri
18、chard H. Hulett, Vice Chair Don Wright, Past Chair Judith Gorman, Secretary Mark D. Bowman Dennis B. Brophy Joseph Bruder Richard Cox Bob Davis Julian Forster* Joanna N. Guenin Mark S. Halpin Raymond Hapeman William B. Hopf Lowell G. Johnson Herman Koch Joseph L. Koepfinger* David J. Law Daleep C. M
19、ohla Paul Nikolich T. W. Olsen Glenn Parsons Ronald C. Petersen Gary S. Robinson Frank Stone Malcolm V. Thaden Richard L. Townsend Joe D. Watson Howard L. Wolfman *Member Emeritus Also included are the following nonvoting IEEE-SA Standards Board liaisons: Satish K. Aggarwal, NRC Representative Richa
20、rd DeBlasio, DOE Representative Alan H. Cookson, NIST Representative Jennie Steinhagen IEEE Standards Project Editor vi Copyright 2006 IEEE. All rights reserved. Contents 1. Scope 1 2. Normative references 1 3. Definitions 2 4. Service conditions 3 4.1 Usual service conditions 3 4.2 Unusual service
21、conditions 3 5. Ratings 4 5.1 General 4 5.2 Rating information. 5 5.3 Rated maximum voltage 5 5.4 Rated power frequency 5 5.5 Rated peak fault-making current 5 5.6 Rated symmetrical fault-making current . 5 5.7 Rated capacitive switching current 7 5.8 Rated peak withstand current. 7 5.9 Rated short-
22、time (symmetrical) withstand current and duration 7 5.10 Rated high-frequency transient-making current 7 5.11 Rated transient inrush frequency . 7 5.12 Rated lightning impulse withstand voltage 8 5.13 Rated control voltages and ranges . 9 6. Design tests. 9 6.1 General 9 6.2 Insulation (dielectric)
23、tests. 10 6.3 Short-time current tests 12 6.4 Rated fault-making current tests 12 6.5 Operating duty tests. 14 6.6 Condition of capacitor switch after short-time current tests, rated fault-making current tests, and operating duty tests (see 6.3, 6.4, and 6.5) 16 6.7 Temperature rise tests 17 6.8 Rad
24、io influence voltage tests . 18 6.9 Mechanical life tests 20 6.10 Control wiring tests . 20 7. Production tests 20 vii Copyright 2006 IEEE. All rights reserved. 8. Construction requirements 20 8.1 Grounding provision 20 8.2 Manual operating provision. 20 8.3 Position indicator. 21 8.4 Nameplate mark
25、ing 21 Annex A (informative) Fault handling ratings for capacitor switches 22 A.1 Introduction 22 A.2 Quantitative distinction. 22 A.3 Time constant (cc) and X/R ratio 22 A.4 Related required capabilities. 23 Annex B (informative) Consideration of inrush current in back-to-back capacitor switching .
26、 24 B.1 Introduction. 24 B.2 General application guidelines 24 B.3 Inrush current and frequency formulas for switching capacitor banks . 25 B.4 Example equations 26 B.5 Formula definitions. 27 Annex C (informative) Simultaneous opening of single-phase capacitor switches on ungrounded wye capacitor i
27、nstallations. 28 C.1 Introduction. 28 C.2 Application considerations 28 Annex D (informative) Altitude correction factors 29 D.1 Introduction 29 D.2 Altitude correction factors 29 D.3 Examples for switchgear with 110 kV lightning impulse withstand rating already rated for 1000 m . 30 D.4 Examples fo
28、r switchgear ratings based on 110 kV lightning impulse withstand rating referred to sea level NTP without adjustment for 1000 m 30 viii Copyright 2006 IEEE. All rights reserved. IEEE Standard Requirements for Capacitor Switches for AC Systems (1 kV to 38 kV) 1. 2. Scope This standard applies to sing
29、le- or multi-pole ac switches for rated maximum voltage above 1 kV to 38 kV for use in switching shunt capacitor banks (see the note in this clause). This standard covers the application of capacitive load switching wherein the capacitive loads are separated by sufficient inductance to limit the hig
30、h-frequency transient-making peak current to the peak values shown in Table 2 and Table 3. Switches designed and built in accordance with this standard are not intended for use as fault current or non-capacitive load current interrupting devices. NOTEThis standard is intended to be a comprehensive s
31、tandard for all “specific duty” applications of switches in the area of switching shunt capacitor banks, but it is limited in scope up to and including 38 kV. However, subject to agreement between the user and manufacturer, it may be used as a specification guide for other rated voltages.1Normative
32、references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments or corrigenda) applies. ANSI C63.2-1996, America
33、n National Standard for Electromagnetic Noise and Field Strength Instrumentation, 10 kHz to 40 GHzSpecifications.2IEC 60694-2002, Common Specifications for High-Voltage Switchgear and Controlgear Standards.3IEEE Std 4-1995, IEEE Standard Techniques for High-Voltage Testing.4, 51Notes in text, tables
34、, and figures of a standard are given for information only, and do not contain requirements needed to implement the standard. 2This standard is available from the Institute of Electrical and Electronics Engineers, 445 Hoes Lane, P.O. Box 1331, Piscataway, NJ 08855-1331, USA (http:/standards.ieee.org
35、/). 3IEC publications are available from the Sales Department of the International Electrotechnical Commission, Case Postale 131, 3, rue de Varemb, CH-1211, Genve 20, Switzerland/Suisse (http:/www.iec.ch/). IEC publications are also available in the United States from the Sales Department, American
36、National Standards Institute, 11 West 42nd Street, 13th Floor, New York, NY 10036, USA. 4IEEE publications are available from the Institute of Electrical and Electronics Engineers, 445 Hoes Lane, P.O. Box 1331, Piscataway, NJ 08855-1331, USA (http:/standards.ieee.org/). 5The IEEE standards or produc
37、ts referred to in this clause are trademarks of the Institute of Electrical and Electronics Engineers, Inc. 1 Copyright 2006 IEEE. All rights reserved. IEEE Std C37.66-2005 IEEE Standard Requirements for Capacitor Switches for AC Systems (1 kV to 38 kV) IEEE Std 1247-1998, IEEE Standard for Interrup
38、ter Switches for Alternating Current Rated Above 1000 Volts. IEEE Std C37.100-1992 (Reaff 2001), IEEE Standard Definitions for Power Switchgear. NEMA 107-1987 (Reaff 1993), Methods of Measurement of Radio Influence Voltage (RIV) of High-Voltage Apparatus.63.Definitions For the purposes of this stand
39、ard, the following terms and definitions apply. The Authoritative Dictionary of IEEE Standards Terms should be referenced for terms not defined in this clause. The definitions of terms contained in this standard, or in other standards referred to in this document, are not intended to embrace all leg
40、itimate meanings of the terms. They are applicable only to the subject treated in this standard. For additional definitions, see IEEE Std C37.100-1992.7An asterisk (*) indicates that, at the time this standard was approved, there was no corresponding definition in IEEE Std C37.100-1992. A dagger ()
41、indicates that the definition in this standard differs from that of IEEE Std C37.100-1992. 3.1 capacitive load: A lumped capacitance that is switched as a unit. 3.2 capacitor switch: A switch capable of making and breaking capacitive currents of capacitor banks. 3.3 operation: A closing followed by
42、an opening. 3.4 pole discrepancy: The time interval, in electrical degrees, between the first capacitor switch pole contact and the final capacitor switch pole contact to mechanically close or open when single-pole capacitor switches are configured as a three-phase system.* 3.5 rated capacitor switc
43、hing current: The rms symmetrical value of the highest capacitive load current that a device is required to make and interrupt at a rated maximum voltage as part of its designated operation duty cycle. NOTEWhen applying a capacitor switch, the capacitive switching current rating should be at least 1
44、25% of the nominal capacitor bank current for ungrounded capacitor banks and at least 135% for grounded capacitor banks. The excess current can be caused by harmonics, overvoltage, and/or plus tolerance in the capacitance of the capacitor bank units. The current multipliers for grounded and unground
45、ed applications are different because the potential for harmonic current flow is higher in grounded banks when compared to the current flow in ungrounded banks. 3.6 rated high-frequency transient-making current: The peak value of the high-frequency current, with specified damping, against which a de
46、vice is required to close and latch under specified conditions. 3.7 rated symmetrical-making current: The maximum peak current at rated power frequency, without dc component, against which a device is required to close and hold in the presence of two times the rated high-frequency transient-making c
47、urrent at a frequency equal to one-half of the rated transient inrush frequency.* 3.8 rated transient inrush frequency: The highest frequency of the transient inrush current of a designated operating duty. 6NEMA publications are available from Global Engineering Documents, 15 Inverness Way East, Eng
48、lewood, CO 80112, USA (http:/ 7For information on references, see Clause 2. 2 Copyright 2006 IEEE. All rights reserved. IEEE Std C37.66-2005 IEEE Standard Requirements for Capacitor Switches for AC Systems (1 kV to 38 kV) 3.9 recovery voltage: The voltage that occurs across the terminals of a pole o
49、f a circuit-interrupting device upon interruption of current. 3.10 restrike: A resumption of current between the contacts of a switching device during an opening operation after an interval of zero current of one-quarter cycle at normal power frequency or longer. 3.11 simultaneous operation: A capacitor switch is considered to have simultaneous closing or opening capability if its pole discrepancy is equal to or less than 90 electrical degrees.* NOTESimultaneous operation can be achieved through electrical operati
