Circuit breaker interruptor tube with double compression volume

摘要

The tube (100) has a deflector (134) and a sleeve (124) to close openings (136) of a hollow operating tube (108) from a beginning position of an opening operation of a circuit-breaker till an intermediate position. The intermediate position is attained between a separation position of arcing contacts (112, 114) and an end position of the opening operation. A compression chamber (106) attains an end compression position before the opening operation end position, and another compression chamber (120) attains the end compression position after the end compression position of the chamber (106).