| 摘要 |
<p>PURPOSE: A gas insulation circuit breaker including a gas discharge guide part is provided to extend the lifetime of components by effectively guiding flow of high temperature pressing gas to a discharge port of a fixing part. CONSTITUTION: A fixing part(10) and a moving part(20) are protected by a shield(40) in order to attenuate electric potential difference created in a first arcing contact point(11) and a second arcing contact point(21). A gas insulation circuit breaker comprises a cylinder(50) having high temperature pressing gas, a piston(51), and a nozzle(52) for discharging gas. A gas discharge guide part(70) of a tube shape is combined to the fixing part. The gas discharge guide part guides the flow of the high temperature pressing gas to a discharge port(13) through the shield of the fixing unit. The external side of the leading end side of the gas discharge guide part is contacted to the inner side of the first main contact point.</p> |
