| 摘要 |
The present invention relates to a gas insulated switchgear, and more specifically, to a gas insulated switchgear which effectively raises an inner pressure while maintaining an external shape of a nozzle for discharging an extinguishment gas to extinguish an arc generated during a disconnection process. The present invention provides a gas insulated switchgear with a nozzle of different materials comprising: a fixed contact point having a fixed arc contact point, a fixed main contact point; a movable contact point having a movable arc contact point and a movable main contact point; and a nozzle which discharges an extinguishment gas for extinguishing the arc generated when the fixed arc contact point is separated from the movable arc contact point. The nozzle includes a main nozzle, which is arranged to be adjacent to the movable main contact point, and an inner nozzle, which is arranged to be adjacent to the movable arc contact point inside the main nozzle to be apart from the main nozzle. The main nozzle includes first and second areas which are made of materials having different thermal properties. |
