| 摘要 |
A vacuum circuit breaker includes a plurality of switching mechanism units having movable contacts and stationary contacts for connecting/breaking an electrical circuit between an electric source and an electric load, respectively, and disposed in a lengthwise direction; an actuator unit including at least one rotary shaft for providing the movable contacts with dynamic power so as to move to positions contacting the stationary contacts or positions separating from the stationary contacts; a supporting frame for fixing and supporting the switching mechanism units and the actuator unit; and a transfer link unit for transferring rotating movement of the rotary shaft to a plurality of vertical movements, whereby the vacuum circuit breaker can be easily installed in a power distributing cabinet and the power of the actuator unit can be evenly transmitted to the plurality of switching mechanism units.
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