Patent ID: 8183853
Filing Date: 2012-05-22
Classification: G01R,H01H

Abstract:
1. An operation detection device for an overcurrent protection component, the overcurrent protection component having a closed state and an open state and outputting a transition event responsive to a transition between the closed state and the open state, the device comprising: an event sensor positioned at a location selected to allow the event sensor to detect the transition event; a current sensor positioned at a selected location and configured to detect a level of a current passing through the overcurrent protection component when the overcurrent protection component is in the closed state and to generate a first output signal based on the detected level of the current passing through the overcurrent protection component; and a switch circuit operatively coupled to the event sensor that is configured to generate a second output signal indicating a change in state of the overcurrent protection component responsive to detection of the transition event by the event sensor.