| 摘要 |
<p>PURPOSE:To improve reliability of gas leak-proof performance by interlocking one rotary shaft interlocked with one ground unit and another rotary shaft interlocked with another ground unit each other and penetrating a tank with any one rotary shaft which is then interlocked with a drive source. CONSTITUTION:A grount 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 pair of rotary shafts 21, 44 are arranged in the tank 14 and levers 23, 43, 27, 46 are secured to respective rotary shafts 21, 44 with levers 43, 46, 23, 27 being coupled through links 47, 49. One lever 46 is interlocked with one ground unit 7a while the other lever 43 is interlocked with the other ground unit 7b and any one of the pair of rotary shafts 21, 44 penetrates through the tank 14 through a sealing member 19, and then the end of the rotary shaft 21 is interlocked with a drive source 25 located on the outside of the tank.</p> |
