ZHANG Jing-shu1, CHEN De-gui1, YOU Yi-min2, et al. Measurement and Analysis of Pre-strike in Vacuum Interrupter[J]. High voltageapparatus, 2004, (2): 84-86+90.
ZHANG Jing-shu1, CHEN De-gui1, YOU Yi-min2, et al. Measurement and Analysis of Pre-strike in Vacuum Interrupter[J]. High voltageapparatus, 2004, (2): 84-86+90.DOI:
The expression of the strike voltage versus the gap smaller than 1.5 mm is derived from the experiments. Combining the calculation results of the electric strength in the vacuum interrupter
the values of the strike down strength between the contacts with different gaps can be obtained. Appling the fitting expression to the calculation of the pre-strike characteristic
the variation rule of the withstand voltage of vacuum interrupters is thus reached according to the closing dynamic characteristic
through which the minimum synchronous closing velocity and the predetermined phase value to achieve the minimum transient component could be estimated.