IEEE C37.235 : 2007

Table of Contents

1 Overview
  1.1 Scope
  1.2 Purpose
  1.3 Protective relaying principles using Rogowski coils
2 Normative references
3 Definitions, acronyms, and abbreviations
  3.1 Definitions
  3.2 Acronyms and abbreviations
4 Review of conventional current sensor technologies
  4.1 Iron-core current transformers
  4.2 Gapped-core current transformers
  4.3 Linear couplers
5 Rogowski coils
  5.1 Theory of operation
  5.2 Rogowski coil designs
  5.3 Performance characteristics
  5.4 The use of the Rogowski coil signal
  5.5 Comparison of conventional current transformers to
       Rogowski coils
  5.6 Installation considerations
  5.7 Interface with relays
  5.8 High-voltage system insulation and integration with
       voltage sensors
  5.9 Standards
  5.10 Testing
  5.11 Rules for transport, storage, installation, operation,
       and maintenance
  5.12 Applications for protective relaying
Annex A (informative) Other nonconventional technologies for
        current measurements
Annex B (informative) Bibliography

Abstract

Presents criteria and requirements for application of Rogowski coils (RCs) (air-core current sensors) used for protective relaying in electric power systems. The selection and application of RCs for the more common protection schemes are addressed.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Institute of Electrical & Electronics Engineers
Pages
ISBN