Current limiting device of circuit breaker
AssigneeLsis Co., Ltd.
InventorJongmahn SOHN
Life of this patent
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Abstract
In present disclosure, a movable bar guide portion is formed to protrude toward a movable bar in a shaft having a movable bar, and when a fault current is applied and the movable bar is rotated due to electromagnetic repulsion force, the movable bar and the movable bar guide portion contact each other, and thus, when the movable bar is rotated through the movable guide portion, movement of a rotation center of the movable bar is minimized.
Claims3
A current limiting device of a circuit breaker including a shaft, a movable bar positioned on an inner side of the shaft and contacting a fixed bar or separated from the fixed bar, and the fixed bar supplying power according to contact or separation of the movable bar,
- wherein at least one movable bar guide portion is formed to protrude in a direction of a central axis of the movable bar in the shaft, and a cam part is formed on an upper surface or a lower surface of the movable bar, and contacts the movable bar guide portion to adjust movement of the movable bar when the movable bar is rotated as a fault current is applied.
Dependencies are inferred from the claim text.