A high-voltage cable grounding box intelligent monitoring method and device

Abstract

This invention proposes an intelligent monitoring method for high-voltage cable grounding boxes, comprising the following steps: collecting current and voltage data from the grounding box of the protector; calculating the resistive current value of the grounding box; comparing the resistive current value with a set threshold; and accurately determining the fault information of the grounding box based on the comparison result. This invention collects the induced voltage and current signals of the metal sheath and armor layer of the high-voltage cable, calculates the resistive current component of the protector in real time, thereby accurately judging the operating status of the protector and counting the number of breakdowns. When the corresponding alarm threshold is reached, corresponding alarm information and handling measures are provided, realizing real-time monitoring and comprehensive evaluation of the operating status of the high-voltage cable and its grounding box, improving the safety and reliability of cable operation.

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