Gas-insulated circuit breaker

摘要

A gas-insulated circuit breaker may include: a fixed contact having a hollow formed therein; a fixed arc contact disposed in the hollow of the fixed contact; a fixed-side conductor provided to surround the fixed contact and configuring a gap between the fixed-side conductor and the fixed contact as a discharge path for an insulation gas; a movable contact having a hollow formed therein; a movable arc contact disposed in the hollow of the movable contact; a movable-side conductor provided to surround the movable contact and configuring a gap between the movable-side conductor and the movable contact as a discharge path for an insulation gas; a first extension part formed on the fixed-side conductor and extending the discharge path for the insulation gas of the fixed-side conductor; and a second extension part formed on the movable-side conductor and extending the discharge path for the insulation gas of the movable-side conductor.