BUFFER TYPE GAS ISOLATOR

摘要

Provided is a buffer type gas insulator, which can replace a buffer shaft easily and which can speed up an isolating action thereby to improve the mechanical strength. The buffer type gas insulator is constituted by arranging an isolating portion (2) in a container (1) to be filled with an insulating gas. This isolating portion (2) includes at least main contact elements (3) and (6) on a stationary side and on a movable side, arc contact elements (4) and (7) on the stationary side and on the movable side, a buffer device for compressing the insulating gas, and an insulating nozzle (10) for blowing an insulating gas to the arc which is generated between the individual arc contact elements (4) and (7). The insulating gas, which is blown to the arc so that it takes a high temperature, is discharged through a cylindrical buffer shaft (11). This buffer shaft (11) is constituted of a pipe member (11a) having the arc contact element (7) at its one end, and an end member (11b) formed by jointing its one end separably to the pipe member (11a) at a connected portion (11d) and by connecting its other end to a rod (12) leading to the side of an operator.