Active Standard

IEEE C37.110-2023

IEEE Guide for the Application of Current Transformers Used for Protective Relaying Purposes

The characteristics and classification of current transformers (CTs) used for protective relaying are described. This guide also describes the conditions that cause the CT output to be distorted and the effects on relaying systems of this distortion. The selection and application of CTs for the more common protection schemes are also addressed.

Sponsor Committee
PE/PSRCC - Power System Relaying and Control
Learn More About PE/PSRCC - Power System Relaying and Control
Status
Active Standard
PAR Approval
2015-06-11
Superseding
C37.110-2007
Board Approval
2023-02-15
History
Published:
2023-05-24

Working Group Details

Society
IEEE Power and Energy Society
Learn More About IEEE Power and Energy Society
Sponsor Committee
PE/PSRCC - Power System Relaying and Control
Learn More About PE/PSRCC - Power System Relaying and Control
Working Group
C37.110_WG-I15 - Working Group for the Application of Current Transformers Used for Protective Relaying Purposes
IEEE Program Manager
Malia Zaman
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Working Group Chair
Joseph Valenzuela

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.


No Active Standards

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.


C37.90.1-1974

IEEE Standard Surge Withstand Capability Test For Protective Relays and Relay Systems

Two types of design tests for relays and relay systems that relate to the immunity of this equipment to repetitive electrical transients are specified. Test generator characteristics, test waveforms, selection of equipment terminals on which tests are to be conducted, test procedures, criteria for acceptance, and documentation of test results are described. This standard has been harmonized with IEC standards where consensus could be reached.

Learn More About C37.90.1-1974

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No Inactive-Withdrawn Standards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.


C37.110-2007

IEEE Guide for the Application of Current Transformers Used for Protective Relaying Purposes

Revision of IEEE Std C37.110-1996. The characteristics and classification of current transformers (CTs) used for protective relaying are described. This guide also describes the conditions that cause the CT output to be distorted and the effects on relaying systems of this distortion. The selection and application of CTs for the more common protection schemes are also addressed.

Learn More About C37.110-2007

C37.110-2007/Cor 1-2010

IEEE Guide for the Application of Current Transformers Used for Protective Relaying Purposes Corrigendum 1: Corrections to Equation 18 and Equation 19

Corrigendum to IEEE Std C37.110-2007. Errors in Equation (18) and Equation (19) are corrected by this corrigendum.

Learn More About C37.110-2007/Cor 1-2010

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