| 摘要 |
<p>PURPOSE:To improve the reliability of gas leak-proof performance by securing the intermediate section of a lever having one end interlocked with one ground unit and the other end interlocked with another ground unit to a rotary shaft and penetrating a tank with the rotary shaft which is then interlocked with a drive source. CONSTITUTION:A ground unit 7a is arranged at upper left section in a circuit breaker tank 14 where three phases of power source buses 41 and load buses 42 approach each other, and ground units 7a, 7b are arranged proximate thereto. A rotary shaft 21 is arranged in the tank 14 and the intermediate section of a lever 43 is secured to the rotary shaft 21. One end of the lever 43 is interlocked with one ground unit 7a while the other end thereof is interlocked with the other ground unit 7b and the tank 14 is penetrated with the end section of the rotary shaft 21 which is then interlocked with a drive source located on the outside of the tank.</p> |
