Abstract:With the rapid development of China"s power system, the safe and reliable operation of high-voltage transmission lines has become a critical foundation for ensuring national energy security and social economic development. However, traditional methods for electrical testing and grounding line installation during power outage maintenance of high-voltage transmission lines often suffer from slow response times and high labor costs, making them inadequate for modern grid requirements. To address these issues, this study proposes an automated grounding device for high-voltage transmission lines based on advanced sensing technology and intelligent control strategies. The device integrates high-precision sensors, high-performance microprocessors, and wireless communication modules, enabling grounding line installation and electrical testing without the need to climb poles. Trial results show that the device effectively reduces the duration of power outages caused by extended maintenance periods, thereby ensuring stable power supply. Additionally, the device features remote monitoring and diagnostic capabilities, significantly reducing on-site maintenance workload and improving operational efficiency. This research provides a new technological approach to enhancing the safety and stability of high-voltage transmission lines, offering significant application value and broad market potential.