Eaton Intelligent Power Limited

Seth O'Brien

Huaqiang Li

Thomas M Ruchti

James Windelon Adams

An interlocking mechanism for a switching device is provided. The interlocking mechanism includes an interlocking arm having a first end and a second end. The interlocking arm is movable between a first position and a second position. When positioned in the first position, the second end of the interlocking arm forms a releasable contact with switching device blocking operation of the switching device. When positioned in the second position, the second end of the interlocking arm withdraws from the releasable contact with the switching device allowing operation of the switching device. The interlocking mechanism further includes an actuator connected to the interlocking arm. The actuator, in response to receiving actuator signal, moves the interlocking arm between the first position and the second position.

Interlocking mechanism for a switching device

A power conversion circuit having a solid-state circuit breaker integrated therein is disclosed. With a disconnect switch between a utility source and the power conversion apparatus described for meeting UL489, the power conversion circuit includes an input connectable to an AC source, a rectifier circuit connected to the input to convert an AC power input to a DC power, and a DC link coupled to the rectifier circuit to receive the DC power therefrom. The rectifier circuit comprises a plurality of phase legs each including thereon an upper switching unit and a lower switching unit, wherein at least one of the upper and lower switching units on each phase leg comprises a bi-directional switching unit that selectively controls current and withstands voltage in both directions, so as to provide a circuit breaking capability that selectively interrupts current flow through the rectifier circuit, while maintaining original power conversion functionalities.

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Wauwatosa, WI, United States of America

Seth O'Brien