Patent ID: 11942292
Assignee: LS ELECTRIC CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A contact monitoring module for a vacuum circuit breaker, capable of monitoring a wear amount of a contact inside a vacuum interrupter, wherein the vacuum circuit breaker includes a push rod assembly coupled to a movable electrode of a vacuum interrupter to raise up or lower down the movable electrode to bring the movable electrode into a contact closed or inserted state or a contact open or withdrawn state, the contact monitoring module comprising:
a linear sensor coupled to a bottom of the push rod assembly to detect a displacement according to a moving direction of a push rod; and
a sensor holder installed adjacent to the bottom of the push rod assembly, wherein the sensor holder is coupled to the linear sensor to process a signal transmitted from the linear sensor,
wherein the linear sensor is coupled to a bottom of a main lever transmitting a driving force generated from a mechanism assembly to the push rod assembly.