BREAKER OPERATION STATE DETERMINATION APPARATUS AND BREAKER OPERATION STATE DETERMINATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a technology for accomplishing a determination apparatus capable of easily determining an operation state of a breaker.;SOLUTION: A breaker operation state determination apparatus 1 determines an operation state of a breaker 100 on the basis of a signal of vibration acceleration, in a turning-on operation of the breaker 100, measured by an acceleration sensor 10 mounted to the breaker 100. Namely, in a filter unit 20, a measurement signal of the acceleration sensor 10 is converted into a waveform abstract signal by a BPF 21 and an effective value conversion circuit 22 and further converted into a binary signal by a comparator 23. Next, a determination unit 30 compares the binary signal with a reference binary signal corresponding to a binary signal in normal operation and determines abnormality/normality of the breaker 100 in accordance with whether a differential cumulative value that is a total number of locations where both the signals are not matched, is equal to or more than a predetermined abnormality determination value.;COPYRIGHT: (C)2014,JPO&INPIT