Table of Contents

1 Scope
2 References
3 Definitions
4 Service conditions
      4.1 Usual service conditions
      4.2 Unusual service conditions
      4.3 Impact on environment
5 Ratings and required capabilities
      5.1 Rated maximum voltage
      5.2 Power frequency
      5.3 Rated continuous current
      5.4 Rated dielectric strength
      5.5 Rated short-circuit duty cycle
      5.6 Rated interrupting time
      5.7 Rated closing time
      5.8 Short-circuit current rating
      5.9 Transient recovery voltage (TRV) rating
      5.10 Rated load current switching capability
      5.11 Capacitance current switching capability
      5.12 Out-of-phase current switching capability
      5.13 Excitation current switching capability
      5.14 Rated control voltage
      5.15 Rated mechanism fluid operating pressure
      5.16 Nameplate markings
6 Tests
      6.1 General
      6.2 Design tests
      6.3 Production tests
      6.4 Tests after delivery
7 Application guide
      7.1 General
      7.2 General application conditions
      7.3 Application considerations
      7.4 Guide to specification
8 Bibliography
Annex A (informative) Example of the application of a
                      generator circuit breaker

Abstract

Covers ac high-voltage generator circuit breakers rated on a symmetrical current basis installed between the transformers terminals and the generator. Coverage includes rated maximum voltage, rated frequency, rated continuous current, rated interrupting time, rated closing time, excitation current switching capability, nameplate markings, unusual service conditions, impact on environment, rated dielectric strength, and rated mechanism fluid operating pressure.

General Product Information

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