Title :
Parallel connection of several vacuum interrupters in a circuit-breaker pole
Author :
Pertsev, A.A. ; Chistjakov, S.P. ; Rylskaya, L.A. ; Chistjakov, RS
Author_Institution :
All-Russian Electrotech. Inst., Moscow, Russia
Abstract :
The work presents some results on the experiments showing the capability of increasing the rated normal current and short-circuit breaking current of the vacuum circuit-breaker by a parallel connection of VI in a pole. It is shown which factors can provide a required division of the current between VIs at closed contacts during the whole service life of the circuit-breaker. The current division between VIs under opening is studied. It is shown that it is better with the use of VI with AMF and a very long delay in the contact opening disturbs the current division between VIs
Keywords :
electrical contacts; magnetic fields; short-circuit currents; vacuum circuit breakers; vacuum interrupters; circuit-breaker; circuit-breaker pole; closed contacts; parallel connection; rated normal current increase; service life; short-circuit breaking current; vacuum circuit-breaker; vacuum interrupters; Current measurement; Delay; Electrical resistance measurement; Interrupters; Length measurement; Magnetic circuits; Magnetic fields; Spirals; Vacuum arcs; Voltage;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 2000. Proceedings. ISDEIV. XIXth International Symposium on
Conference_Location :
Xi´an
Print_ISBN :
0-7803-5791-4
DOI :
10.1109/DEIV.2000.879013
