Eaton Intelligent Power Limited

Tyler Holp

Steven Zhenghong Chen

Xin Zhou

Robert Michael Slepian

Brad Robert Leccia

Eric D Smith

Steven Christopher Schmalz

Koustubh Dnyandeo Ashtekar

Brian John Schaltenbrand

Hongbin Wang

Santhosh Kumar Chamarajanagar Govinda Nayaka

Logan D Weigle

Michael Slepian

Andrew W Lichauer

Andy Schroedermeier

Karthikeyan Subramaniam

A circuit interrupter includes separable contacts, a drive shaft coupled to the separable contacts and structured to move to open and close the separable contacts, a tapered drive shaft section coupled to the drive shaft and having tapered sides, and a friction assembly. The friction assembly includes a friction device structured to interact with the tapered sides of the tapered drive shaft, an armature coupled to the friction device, and a biasing member structured to bias the friction device and armature toward the tapered drive shaft section.

Circuit interrupter with tapered drive shaft section

An art fault mitigator includes a sensor structured to detect at least one of a user within vicinity of the power system protection device, a light within the power system protection device and an overcurrent within the power system protection device; a mechanical switching device including a fast mechanical circuit interrupter and an actuator; a power electronics circuit coupled to the mechanical switching device in parallel and including a current commutator structured to commutate current from the fast mechanical circuit interrupter to the power electronics circuit upon turning OFF of the fast mechanical circuit interrupter, a power electronic circuit interrupter structured to allow the current to ride there-through up to a threshold current, and a current limiter structured to limit the current flowing through the power electronics circuit interrupter; and a controller including a trip control structured to control operations of the mechanical switching device and the power electronics circuit.

Power system protection device with current limiting and controlled switching functions for AC and DC applications

Coil-based actuators for use in opening and closing the separable contacts of circuit interrupters provide increased initial velocity for opening strokes and improved damping at the end of opening strokes by utilizing current-based damping and omitting contact springs and contact dampeners.

Thomson coil with energized coil damping

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Coraopolis, PA, United States of America

Tyler Holp