ARC DETECTING APPARATUS, ARC DETECTING METHOD AND POWER SYSTEM

摘要

An arc detecting apparatus according to the present invention comprises: a current sensor to sense a first current flowing through a first line of a system in which an influence of noise according to operating is detected in a first frequency band; a frequency data generation unit to digitally process a sensed value of the first current in a first temporal section and a second temporal section to generate first frequency data and second frequency data for the first frequency band; and an arc determination unit to determine whether an arc can be created in the system according to comparison data between the first frequency data and the second frequency data.