Superseded Standard

IEEE C57.21-1990

IEEE Standard Requirements, Terminology, and Test Code for Shunt Reactors Rated Over 500 kVA

All oil-immersed or dry-type, single phase or three-phase, outdoor or indoor shunt reactors rated over 500 kVA are covered. Terminology and general requirements are stated, and the basis for rating shunt reactors is set forth. Routine, design, and other tests are described, and methods for performing them are given. Losses and impedance, temperature rise, dielectric tests, and insulation levels are covered. Construction requirements for oil-immersed reactors and construction and installation requirements for dry-type reactors are presented.

Sponsor Committee
PE/TR - Transformers
Learn More About PE/TR - Transformers
Status
Superseded Standard
Superseded by
C57.21-2008
Superseding
C57.21-1981
Board Approval
1990-08-13
History
ANSI Approved:
1991-08-09
Published:
1990-11-30
Reaffirmed:
2004-06-24

Working Group Details

Society
IEEE Power and Energy Society
Learn More About IEEE Power and Energy Society
Sponsor Committee
PE/TR - Transformers
Learn More About PE/TR - Transformers
Working Group
WGC57.21 - Performance Characteristics - Req & Test Code for Shunt Reactors >500kVA Working Group
IEEE Program Manager
Patrycja Jarosz
Contact Patrycja Jarosz
Working Group Chair
Sanjib Som

Other Activities From This Working Group

Current projects that have been authorized by the IEEE SA Standards Board to develop a standard.


No Active Projects

Standards approved by the IEEE SA Standards Board that are within the 10-year lifecycle.


C57.21-2021

IEEE Standard Requirements, Terminology, and Test Code for Shunt Reactors Rated Over 500 kVA

All liquid-immersed or dry-type, single-phase or three-phase, outdoor or indoor shunt reactors rated over 500 kVA are covered. Terminology and general requirements are stated, and the basis for rating shunt reactors is set forth. Routine, design, and other tests are described, and methods for performing them are given. Losses and impedance, temperature rise, dielectric tests, and insulation levels are covered. Construction requirements for liquid-immersed reactors and construction and installation requirements for dry-type reactors are presented. This standard also covers thyristor-controlled shunt reactors used in static var compensators.

Learn More About C57.21-2021

These standards have been replaced with a revised version of the standard, or by a compilation of the original active standard and all its existing amendments, corrigenda, and errata.


C57.21-1981

IEEE Standard Requirements, Terminology, and Test Code for Shunt Reactors Rated Over 500 kVA

Superseded by C57.21-1990. All oil-immersed or dry-type, single-phase or three-phase, outdoor or indoor shunt reactors rated over 500 kVA are covered. Terminology and general requirements are stated, and the basis for rating shunt reactors is set forth. Routine, design, and other tests are described, and methods for performing them are given. Losses and impedance, temperature rise, dielectric tests, and insulation levels are covered. Construction requirements for oil-immersed reactors and construction and installation requirements for drytype reactors are presented.

Learn More About C57.21-1981

These standards have been removed from active status through a ballot where the standard is made inactive as a consensus decision of a balloting group.


No Inactive-Withdrawn Standards

These standards are removed from active status through an administrative process for standards that have not undergone a revision process within 10 years.


C57.21-2008

IEEE Standard Requirements, Terminology, and Test Code for Shunt Reactors Rated Over 500 kVA

All oil-immersed or dry-type, single-phase or three-phase, outdoor or indoor shunt reactors rated over 500 kVA are covered. Terminology and general requirements are stated, and the basis for rating shunt reactors is set forth. Routine, design, and other tests are described, and methods for performing them are given. Losses and impedance, temperature rise, dielectric tests, and insulation levels are covered. Construction requirements for oil-immersed reactors and construction and installation requirements for dry-type reactors are presented. This standard also covers thyristor-controlled shunt reactors used in static var compensators.

Learn More About C57.21-2008

Subscribe to our Newsletter

Sign up for our monthly newsletter to learn about new developments, including resources, insights and more.