CIRCUIT BREAKER OPERATION MONITORING DEVICE, MONITORING SYSTEM, PROGRAM, AND JUDGEMENT METHOD OF INPUT OPERATION METHOD OF CIRCUIT BREAKER

摘要

PROBLEM TO BE SOLVED: To monitor operation of a circuit breaker by distinguishing different input operation methods.;SOLUTION: The circuit breaker operation monitoring device comprises a first current value calculation part which calculates as an operation current value the current value flowing to a first power supply line which supplies operation current at input operation to a plurality of circuit breakers, an operation judgement part which judges whether or not any of the plurality of circuit breakers has made a closing input operation based on the maximum value of the operation current value in a first period, a peak detection part which detects a peak timing at which the operation current value becomes the maximum value, a method judgement part which judges the input operation method of the circuit breaker making closing operation out of the plurality of circuit breakers based on the operation current value in a second period immediately before the peak timing out of the first period, and an alarm output part which outputs alarm information when the operation time of the circuit breaker making closing operation is a reference closing operation time or more established beforehand according to the input operation method.;COPYRIGHT: (C)2011,JPO&INPIT