Power cable condition diagnosis and remaining life measurement apparatus using ultra low frequency tan delta measurement data and method thereof

摘要

The present invention diagnoses the state of a power cable using an ultra-low frequency tan delta signal (TD), and uses a three-dimensional matrix that realizes the reproducibility of the state diagnosis of the power cable to determine the replacement timing of the power cable. The present invention relates to a power cable condition diagnosis and remaining life measurement apparatus and method using the measurement data of ultra-low frequency tan delta to be determined. A power cable condition diagnosis and remaining life measurement apparatus and method using measurement data of an ultra-low frequency tan delta according to the present invention includes a Weibull modeling unit, a distance limiting unit, a data type classification unit, A quantitative expression unit, a normalization unit, a three-dimensional configuration unit, a risk grade calculation unit, and a remaining life measurement unit are configured.