Title :
Short arcs’ interrupting capability influence on the interrupting capability of three-phase VCB
Author :
Poluyanova, I.N. ; Skorohod, B.A.
Author_Institution :
IG Tavrida Electr., Sevastopol
Abstract :
Capability of vacuum interrupters to extinguish short arcs burned up in the vicinity of current zero has been experimentally estimated for different vacuum interrupters, range of currents (12.5 - 31.kA rms) and TRV (according 12 kV - 24 kV rated voltages). For three-phase vacuum circuit breaker in a circuit with isolated neutral it has been demonstrated that there is an influence of unsuccessful extinction of short arcs on the arc durations for the first interrupted pole and two last poles.
Keywords :
vacuum arcs; vacuum circuit breakers; vacuum interrupters; current 12.5 kA to 31 kA; short arcs interrupting capability; three-phase vacuum circuit breaker; vacuum interrupters; voltage 12 kV to 24 kV; Circuit breakers; Circuit testing; Contacts; Dielectrics and electrical insulation; Equivalent circuits; Interrupters; Poles and zeros; Vacuum arcs; Vacuum technology; Voltage;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 2008. ISDEIV 2008. 23rd International Symposium on
Conference_Location :
Bucharest
Print_ISBN :
978-973-755-382-9
Electronic_ISBN :
1093-2941
DOI :
10.1109/DEIV.2008.4676762
