Title :
Dielectric strength of the vacuum interrupter sections after termination of the electric life
Author_Institution :
All-Russian Electrotechnical Inst. (VEI), Moscow, Russia
Abstract :
The dielectric strength of the vacuum interrupter (VI) sections is studied after termination of the electric life. It is shown the reduction of the electric life occurs in particular cases and its reason is the appearance of more low voltage breakdowns called as "slow" because of increasing almost by an order the time of the voltage drop to zero during breakdown (several microseconds against fractions of a microsecond for breakdowns in new vacuum interrupters). The conditions of occurrence of such "slow" breakdowns are considered.
Keywords :
electric strength; switchgear testing; vacuum breakdown; vacuum interrupters; 1250 A; 20 kA; 35 kV; dielectric strength; electric life reduction; electric life termination; low voltage breakdowns; slow breakdowns; vacuum interrupter; voltage drop to zero; Breakdown voltage; Circuit testing; Dielectric breakdown; Dielectrics and electrical insulation; Electric breakdown; Interrupters; Laboratories; Lightning; Vacuum arcs; Vacuum breakdown;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 2002. 20th International Symposium on
Print_ISBN :
0-7803-7394-4
DOI :
10.1109/ISDEIV.2002.1027387
