Remote System for Monitoring Failures in the Cubicle Type High Voltage Receiving Equipment

Cubicle-style high-voltage power substations require regular security and condition inspections to ensure stable and safe operation. However, the workforce of skilled safety engineers responsible for these inspections is aging, raising concerns about a future shortage of personnel and increasing the need for alternative inspection methods. To address this pressing issue, the development and implementation of a remote monitoring system becomes essential. In this study, we designed and constructed a costeffective remote monitoring system that integrates three key sensors: an optical camera, a thermal imaging sensor, and a lightning strike detection sensor. Each sensor's performance was evaluated through practical field tests under various environmental conditions. The experimental results demonstrated that both the optical camera and the thermal imaging sensor provided reliable and effective data for remote monitoring tasks. In contrast, the lightning detection sensor exhibited limitations in detection accuracy when installed at a single point. However, it was found that increasing the number of installation points could potentially improve the accuracy of lightning strike localization. This study demonstrates the feasibility of remote monitoring technologies for high-voltage substations and highlights key considerations for sensor deployment to achieve practical implementation in future power infrastructure monitoring systems.