Switchgear system that determines contact erosion in circuit breaker
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United States of America Patent
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Oct 1, 2024
Grant Date -
Dec 7, 2023
app pub date -
Aug 11, 2023
filing date -
Dec 21, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
A switchgear system includes a switchgear frame and a truck carrying a circuit breaker, which includes a breaker housing, a fixed electrical contact and a movable electrical contact mounted within the breaker housing, an actuator piston connected to the movable electrical contact, and a drive assembly coupled to the actuator piston. A sensor circuit is mounted on the switchgear frame under the truck and aligned with the circuit breaker and configured to acquire displacement data of the actuator piston when in a contact testing position. A controller is coupled to the sensor circuit and configured to receive the displacement data and determine electrical contact erosion within the circuit breaker.
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