Power circuit interrupter.

摘要

A circuit interrupter employing a liquified dielectric medium such as sulfur hexafluoride. A pump cylinder (74) forces the dielectric liquid into the vicinity of a fixed contact (50). The pump cylinder is refilled from within the contact enclosure (44) after each current interruption to allow for repeated operations. Check valves (88, 92) are provided to prevent any dielectric gas from entering the pump cylinder. The interrupter system further includes a pressure absorbing accumulator (95-97) and a cooler.