Title :
Effect of high-frequency currents on interrupting performance of GCBs
Author :
Kawano, H. ; Ishikawa, M. ; Toda, H. ; Yokota, T. ; Yamagata, Y.
Author_Institution :
Toshiba Corp., Kawasaki, Japan
fDate :
7/1/1994 12:00:00 AM
Abstract :
With electric power systems, it is shown by calculations that as the transmission voltage rises, high-frequency components contained in the fault current could remain until current interruption. This paper describes the influence of high-frequency current on the thermal and dielectric performance of a gas circuit breaker (GCB) by analyzing arc and hot gas flow. It has been proved that the model used for interruption tests simulating high-frequency components has sufficient performance for practical application
Keywords :
arcs (electric); circuit-breaking arcs; dielectric properties of gases; fault currents; gas blast circuit breakers; power system protection; thermal analysis; 1000 kV; 1000 kV power system; UHV power system; arc flow; current interruption; dielectric performance; electric power systems; fault current; gas circuit breaker; high-frequency components; high-frequency current; high-frequency currents; hot gas flow; interrupting performance; interruption tests; thermal performance; transmission voltage rises; Circuit faults; Circuit testing; Dielectrics; Fault currents; Performance analysis; Power system analysis computing; Power system faults; Power system modeling; Power system transients; Voltage;
Journal_Title :
Power Delivery, IEEE Transactions on
