Analysis of transient recovery voltage on circuit-breaker connected to HV terminals of step-up transformer located in hydro power plant

Analysis of transient recovery voltage - Bozidar Filipovic,Nina Stipetic, Franjo Vukovic

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This presentation deals with TRV on circuit-breaker installed in GIS at HV terminals of step-up transformer located in hydro power plant. An overview of standards covering TRV will be given. Modelling of power system components in EMTP® for TRV studies will be shown (generator, power transformer, electric arc model inside circuit breaker, etc.). Results of EMTP® simulations will be presented covering different cases of TRV (for out-of-phase conditions, single-phase to ground and three-phase faults, short-line faults, switching off small capacitive currents, etc.).


Tag(s) Transient Recovery Voltage (TRV) , Step-Up Transformer , Generator Synchronization , Out-of-Phase Switching , Short-Circuit ,

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