High compression puffer circuit interrupter

摘要

A circuit interrupter characterized by a pair of separable contacts which establish an arc upon separation, means for directing a blast of arc interrupting gas into the zone between the separating contacts to extinguish the arc and comprising a cylinder movable within a surrounding casing, a piston movably mounted in the cylinder and pressurized fluid means cooperating with the piston to compress and push the interrupting gas from the cylinder to said zone.