| 摘要 |
<p>A center shaft of a swing lever, connected to a moving contact of a main interrupting unit, is supported by hollow bearings. The center shaft is provided with an engaging portion which is positioned in the hollow space of the hollow bearing and therein connected to a rotating shaft of which the force is partially exerted on a moving contact of a closing resistor device. Therefore, if the gas circuit breaker does not need the closing resistor device, the rotating shaft may be removed. For the gas circuit breaker requiring the closing resistor device, the rotating shaft may be inserted into the hollow bearings. For both cases, the gas circuit breaker is thus able to take the same fundamental construction.</p> |
