Patent ID: 6639518
Filing Date: 2003-10-28
Classification: G01R

Abstract:
A circuit monitor for monitoring one or more metered values in an electrical circuit, said circuit monitor including a system for selecting alarm setpoints based upon learned characteristics of normal operation of metered values, said circuit monitor comprising:a controller; a memory; said memory including a test register of alarms selected to be part of a learning process; said controller including: means for summarizing and characterizing said one or more metered values as histogram formatted data corresponding to metered values identified by a test register of alarms selected to be part of a learning process; means for storing said histogram formatted data in said memory; means for organizing said stored data into a plurality of memory locations, each covering a fixed range of time duration; and means for selecting setpoints which produce a minimum product of metered value multiplied by time duration for Over Alarms or a maximum product of metered value multiplied by time duration from Under Alarms.