AUTOMATED ALARM SETPOINT LEARNING IN AN ELECTRICAL METER

A circuit monitor monitors one or more metered values in an electrical circuit, and includes a system for selecting alarm setpoints based upon learned characteristics of normal operation of metered values. The circuit monitor includes a controller and a memory. The memory includes a test register of alarms selected to be part of a learning process. The controller includes summaries and characterizes the one or more metered values as histogram formatted data corresponding to metered values identified by a tes t register of alarms selected to be part of a learning process. The controller stores the histogram formatted data in the memory and organizes the stored data into a plurality of memory locations, each covering a fixed range of ti me duration. The controller selects setpoints which produce a minimum product o f metered value multiplied by time duration for Over Alarms or a maximum produ ct of metered value multiplied by time duration for Under Alarms.