The invention, which relates to the technical field of
power cable insulation state detection, discloses a
power cable insulation state on-line diagnosis
system comprising a multi-parameter acquisition module comprising a multi-type sensor group, a
signal conditioning unit and a
data transmission unit. The data preprocessing module processes abnormal values and
noise, unifies parameter dimensions and synchronizes timestamps; the insulation state diagnosis module is used for constructing a hierarchical
index system, calculating scores through combination and empowerment and dividing grades; the fault positioning module transmits a narrow pulse
signal, receives a reflected
signal and calculates a fault distance; the result output module is used for generating a report, visually presenting the report and pushing the report to multiple terminals; and the
system management module is used for dividing authority, recording logs, carrying out double
backup data and monitoring the
equipment state. The comprehensive performance, real-time performance and accuracy of cable insulation diagnosis are improved, faults are accurately positioned, aging
trend prediction and personalized maintenance are supported, data safety is guaranteed, operation and maintenance efficiency is improved, the service life of the cable is prolonged, and power supply reliability is enhanced.