Method and apparatus for determination of battery run-time in uninterruptible power system

摘要: The run-time on battery power available from an uninterruptible system is accurately determined both during supply of the through inverter to load and time where supplied directly AC load. During outages load, output voltage measured as current remaining utilizing voltage, current, specifications including full charge open circuit battery, allowable lower limit constants which are characteristic battery. When initially, then that being recharged calculated based initial adjusted by a factor porportional has been charged. used calculate under conditions subtracting term proportional current. These estimates utilized in manner similar when loaded. Thus, need not be turned solely for purpose testing