Patent ID: 7463985
Filing Date: 2008-12-09
Classification: G01R

Abstract:
1. A power quality indicator for monitoring a power bus including a plurality of electrical characteristics, the power quality indicator comprising: a plurality of detectors, each of the detectors being structured to detect an electrical characteristic of the electrical characteristics and to output a component value of a plurality of component values for each interval of a repeating interval of time, each of the component values being structured to indicate a power quality event occurring during a corresponding interval of the repeating interval of time; a data selector structured to receive the component values for each interval and to multiply each component value of the component values for each interval with a corresponding weighting factor of a plurality of weighting factors to provide a corresponding weighted value of a plurality of weighted values for each interval, and further structured to select one of the weighted values having the largest magnitude of all of the weighted values for each interval; and a display structured to output an indication of the one of the weighted values selected by the data selector within a first period of time ending with the most recent interval of the repeating interval of time.