IEEEStandardGeneralRequirementsand TestProcedureforOutdoorPowerApparatus Bushings
Transformers Committeeof the
Sponsor
IEEE Power Engineering Society
Approved September 26 1991
IEEE Standards Board
Approved March 31 1992
AmericanNational StandardsInstitute
Abstract: Service conditions rating general requirements and test procedures for outdoorbasic impulse insulation levels of 110 kV and above for use as ponents of oil-filled trans- apparatus bushings are set forth. They apply to outdoor power apparatus bushings that haveformers oil-filled reactors and oil circuit breakers. The following are not covered: high-volt-transformers bushings in which the internal insulation is provided by a gas bushings appliedwith gaseous insulation (other than air at atmospheric pressure) external to the bushing. bushings for distribution-class circuit breakers and transformers bushings for automatic cir-cuit reclosures and line sectionalizers and bushings for oil-less and oil-poor apparatus.
Keywords: apparatus bushings bushings oil circuit breakers oil-illed reactors oil-filledtransformers
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Foreword
This foreword is not a part of IEEE C57.19.00-1991 IEEE Standard General Requirements and Test Procedurefor Outdoor Power Apparatus Bushings.)
apparatus bushings. It is the result of joint efforts of professional engineers manufacturers This document is based on the standard practices in the United States for outdoor powerand users working together in an Accredited Standards Committee C76 under the auspicesof the American National Standards Institute (ANSI). The work was initially carried out under the auspices of the American Institute of Electrical Engineers (AIEE) [now the Insti-ers Association (NEMA). The original standard approved in 1942 as AIEE Standard 21(which became American National Standard for Apparatus Bushings ANSI C76.1-1943) wasprepared by the Joint Committee on Bushing Standardization of the Electric Machinery. Power Transmission and Distribution and Protection Devices Committees of the AIEE.
teristics of Outdoor Apparatus Bushings (used with Power Circuit Breakers and Outdoor A supplement and partial revision ANSI C76.1a-1958 Electrical and Dimensional Charac-Transformers) was prepared by the NEMA Joint Sections Committee on Outdoor ApparatusBushings (posed of representatives of the High Voltage Insulation Section Power Circuit Breakers Group Switchgear Section and the Transformers Section. It resulted from work bythe regional associations of electrical utilities and filed the needs of the user for dimensional interchangeability.
At the time of this supplement Committee C76 foresaw the need for a general revision andimplementation of this request was undertaken by a Submittee of the Joint Sections Com- updating of the standard and asked AIEE and NEMA to submit remendations. In NEMA February 1960 by the Codes and Standards Committee for submission to Committee C76 asthe NEMA remendation. In the AIEE a Joint Working Group consisting of members ofthe Transformer and Dielectric Test Committee of the Transformers Committee and of the Power Circuit Breaker Committee was established and developed a remendation thatby the West Coast Submittee of the AIEE Transformers Committee which developed was submitted to Committee C76 in July 1960. The AIEE proposal was subsequently reviewedadditional remendations and submitted them to Committee C76 in November 1960. Com-the several proposals and remendations. This became IEEE Std 21-1964 and was mittee C76 appointed a special Working Group for Revision of ANSI C76.1-1943 to consolidateapproved June 9 1964 as ANSI C76.1-1964. It was reafrmed in 1970.
Work on a revision was initiated in Committee C76 in August 1968. A decision was made toseparate the standard into three parts: the first (C76.1) to cover the general requirementsand test procedures the second (C76.2) to cover explicit ratings and dimensions and the third to be an application guide. The latter is still under consideration. Other changes in thisrevision included
(1)Test procedure updatingwith wet switching impulse test values and coordination with switching surge spark-(3) Establishing dual current ratings for 115 kV through 196 kV insulation class bushings over values of arresterssince circuit breakers have a lower temperature rise than transformers permitting alarger current rating for a given maximum ambient temperature when applied to cir- cuit breakers
The revised standard was approved as IEEE Std 21-1976 on June 3 1976 and as ANSIC76.1-1976 on July 23 1976.
Work on the latest revision was initiated in the then newly formed Bushing Submitteeof the Transformers Committee in October 1979. Extensive changes to the standard included a new standard number IEEE C57.19.00 which is indicative of its Sponsor Committee. Othermajor changes were made to improve the test sequence to allow apparent charge measure- ments to be made instead of radio influence voltage measurements during the low-frequencydry withstand tests and to provide for special tests such as thermal stability tests.
at the time this revision was developed and approved: The Bushing Submittee of the Transformers Committee had the following membership
L. B. Wagenaar Chair
P.Singh Secretary
L. C. Aicher D. J. Allan M. S. AltmanJ. P. Burkhart D. C. BowmanD.H. Douglas J.K.EasleyF E.Elliott
D. A. Gillies F. P Falkowski F. W. HeinrichsC. R. Hoesel K. R. HightonD.C. Johnson R. 1. LoweL. D. Miller
S. H. Osborn J. Patton R. J. MusilM. Rajadhyaksha W. E. SaxonD. N. Sharma R. A. VeitchW. Young
submission to the IEEE Standards Board: The following persons were on the balloting mittee that approved this document for
E. JI AdolphsonD.J.AllanR. Allustiari B.AllenE. H. Arjeski M. S. AltmanJ. C. Arnold J. AubinD.L. Basel R. Bancroft D. BarmardP. L Bellaschi S. BennonW. B. Binder J. V. BonucchiJ. D.BorstO.R. Compton D. J. CashD.W.Crofts J. L. Corkran F: W. CookJ.N.Davis D. H. DouglasR. E Dudley J. C. DuttonJ. K.Easley J. A. EbertD. J. Fallon S. L. FosterR. E. Gearhart M. Frydman H. E. GabelD.W. Gerlach D.A. GilliesR. S. Girgis R. L. GrubbF. J. Gryszkiewicz G. HallJ. H. Harlow
H.R.Moore W. E. Morehart R.J.MusilW. H. MutschlerB. K. Patel R. A. Olsson H. A. Pearce W. F. PattersonD. Perco L. W. PierceC. P. Raymond C. A. Robbins J. M. PollittL. JI. SavioD. N. Sharma V.ShenoyE. G Strangas L. R. Stensland W. W. SteinD. SundinL. A. Swenson D. S. Takach A. L. TantonV. Thenappan A. M. TeplitzkyR. C. Thomas J. A. Thompson T. P: Traub D. E. TruaxR.E. Uptegraff. Jr G H. Vaillancourt W. B. UhlL. B. WagenarR. J. Whearty A. L. WilksW. E. Wrenn A. C. WurdackE. J. Yasuda
F. W. HeinrichsW.R.Henning K.R.HightonP. J. Hoefler C. HoeselC.C.Honey R. H. HollisterC.Hurty E. HowellsR. G Jacobsen Y. P Lijima G. IiffD.L. JohnsonA. J.Jonnatti C.P.KappelerR. B. Kaufman J.J KellyW. N.Kennedy J. P. KinneyE. Koenig B. Klaponski A. D. KlineR.E.LeeH.F. Light S. R.LindgrenL. W.Long L. A. LowdermilkM.L. Manning R. I. LoweH. B. Margolis JI. W. Matthews T. MassoudaC.J. McMillen J. McGillW.J. McNuttC. K. Miller C. H. MillianR. E. Minkwitz M. Mitelman
The Accredited Standards Committee on Transformers Regulators and Reactors C57 thatreviewed and approved this document had the following members at the time of approval:
Leo J. Savio Chair John A. Gauthier SecretaryOrganization Represented Name of RepresentativeElectric Light and Power Group P. E. OrehekS. M. A. Rizvi F. StevensJ. C. Thompson J. SullivanM. C. Mingoia (Ar.) .J. D.BerstJ. H. Harlow J. DavisL. SavioH. D. Smith R. A. VeitchNational Electrical Manufacturers Association. G. D. Coulter P. DeweverA. A. Ghafourian J. D. DouglasK.R. Linsley R.L PlasterH. RobinP. J Hopkinson (Atr.) R. E. Uptegraff JrJ. Nay (Ar.) .F. A. LewisTennessee Valley Authority.Underwriters Laboratories Inc. W. T. OGradyUS Department of Agriculture REA US Department of Energy Western Area Power Administration . .D. R. Torgerson J. BohlkUS Department of the Interior Bureau of Reclamation .F.W.Cook S.US Department of the Navy Civil Engincering Corps. H. P. Stickley
