| 摘要 |
<p>A controlled vacuum discharger for rigid switching of intense electric currents has a vacuum chamber holding air at a low pressure (P), two metal bodies functioning as main discharge electrodes and a plurality of ignition devices for initiating electric discharge between the two metal bodies. The two metal bodies having each a current discharge surface, the two discharge surfaces being disposed within a vacuum chamber and being parallel to one another with a distance (D) between them, electricity being discharged from one of the discharge surfaces to the other electrode at a breakdown potential (U). The ignition devices having each an ignition tip in proximity to one of the discharge surfaces so as to allow generation of an ignition electric spark at or in proximity to the said one of the discharge surfaces.</p> |
