Eaton Intelligent Power Limited

Tejal Rohan Sheth

Karthik Satyanarayanan

Sandy Omar Jimenez Gonzalez

Prasad Arvind Venikar

Nicholas David Reynolds

Harish Gode

Sapana Darekar

Swapnil Dhavan

Ming Wu

Machiraju Anurag Swamy

A circuit breaker with at least one disconnect mechanism and a smart monitoring system implements nuanced fault logic in order to minimize disruption to operation of the circuit breaker under a fault condition, and enables the circuit breaker to address nuisance or low severity faults separately from load switching. Under low severity or nuisance fault conditions, the smart monitoring system temporarily disconnects affected loads from the power supply rather than tripping the entire circuit breaker so that the loads can be reconnected to the power supply if the fault condition resolves within a short amount of time. In addition, the disconnect mechanism(s) that are used to temporarily disconnect the load(s) are configured to be re-closed after opening without requiring manual intervention. In high severity fault conditions, the smart monitoring system actuates tripping of the entire breaker, requiring manual re-closing of the circuit breaker.

Fault logic based operating system for one or more disconnects in a circuit breaker, with provision of limited automatic self-reset and/or reset by software application

A circuit interrupter is structured to electrically connect between a power source and a load. The circuit interrupter includes: separable contacts; an actuator coupled to the separable contacts and structured to open or close the separable contacts; a current sensor structured to sense current flowing through the circuit interrupter to the load; a communication module communicatively coupled to at least one of a cloud server and a user device and structured to transmit and receive data; and a controller coupled to the sensor, the actuator, and the communication module, the controller comprising at least one of a fault detector and a look-up table, the fault detector structured to detect and classify a fault, the look-up table comprising at least reference data associated with previous normal cycles, the reference data including at least power factors, closing angle ranges and fault classification categories.

Apparatus and method of detecting and classifying faults in circuit interrupter in microseconds

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Pune, India

Tejal Rohan Sheth