General Electric Company

Richard L Hein

Ahmed Elasser

Thomas Frederick Papallo, Jr

Michael H Thomas

Kay Gruenwoldt

A method and apparatus generates an enhanced trip time curve capable of capturing both the non-sinusoidal energy and series effects. Relevant data including time, current, and energy is plotted on a three-dimensional set of axes. The resultant three-dimensional representation is useful for representing trip times for a protection device accounting for energy effects, and for determining selectivity in a multi-tier electrical distribution system.

Apparatus and method for representing protection device trip response

An identification system for identifying correct placement of various circuit breaker accessories within recesses of a circuit breaker molded frame is disclosed. The system includes recess symbols adjacent the recesses in the frame and matching accessory symbols positioned on a front, visible surface of the accessories. The system may further include name labels positioned on the accessories for labeling the accessories'names. A circuit breaker employing the identification system of the present invention is also disclosed.

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Weatogue, CT, United States of America

Richard L Hein