Revision of TRV requirements for the application of generator circuit-breakers

Mirko Palazzo, Marjan Popov, Alejandro Marmolejo, Maurizio Delfanti

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)


The requirements imposed on generator circuit-breakers greatly differ from the requirements imposedon other transmission and distribution circuit-breakers. Due to the location of installation between thegenerator and the associated step-up transformer, a generator circuit-breaker must meet high technicalrequirements with respect to rated normal currents, short-circuit currents, fault currents due to out-of-phase conditions and transient recovery voltages. The question whether the transient recovery voltagerequirements laid down in IEEE Std C37.013-1997 (R2008) and in IEC/IEEE 62271-37-013 are adequatefor the application of generator circuit-breakers in modern power stations is considered in the presentwork.In order to quantify the transient recovery voltage requirements for the application of generator circuit-breakers a comprehensive survey of different fault conditions occurring in several power stations hasbeen performed. The fault transients’ simulations have been performed by means of the ElectromagneticTransients Program (EMTP).
Original languageEnglish
Pages (from-to)66-71
Number of pages6
JournalElectric Power Systems Research
Publication statusPublished - 2016


  • Fault current
  • Generator circuit-breaker
  • Transient recovery voltage


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