Operational manner of the high tension switching device, and the said high tension switching device which possess the vacuum switching chamber where two is jointed at least in series.

摘要

High voltage switching equipment, comprises series-connected vacuum switch chambers (1 and 2) of different sizes and/or contact piece designs. High voltage switching equipment comprises two or more series-connected vacuum switch chambers (1 and 2) which have different physical sizes and/or contact piece designs, e.g diameters, spacings or types and are selected so that re-arcing and arc-backs of one chamber type are controlled by another chamber type. An Independent claim is also included for operation of the above switching equipment, by time-offset opening of the contact pieces of two or more vacuum switch chambers. Preferred Features: Quench chamber insulation may be achieved with sulfur hexafluoride (SF6), nitrogen (N2), air or other gaseous or liquid insulating material.