On-site Report: "Unmanned Health Check" on High-Voltage Lines

Release time:

2026-01-22

Key words:

Recently, at a 110kV transmission line maintenance site in Xinjiang, a heavy-duty drone took off following the command: “Assembly complete. Site conditions normal. Cleared for takeoff.” It precisely delivered an X-ray inspection robot to a high-altitude conductor. Technicians remotely guided the robot along the line and captured images with a single click, efficiently completing X-ray flaw detection for tension clamp joints.

Sitech has been deeply engaged in the field of smart grid inspection for years, building an intelligent drone inspection matrix covering infrared, ultraviolet, and X-ray flaw detection. This provides comprehensive, precise, and customizable professional solutions for assessing grid equipment conditions.

1. On the Scene: "Unmanned Health Checks" on High-Altitude Lines

As critical hardware in transmission lines, the internal crimping quality of tension clamp joints directly impacts system safety. Traditional inspection methods require manual tower climbing and must be performed under power outage conditions, posing challenges such as low efficiency, high risks, and disruptions to power supply continuity.

With the advancement of drone technology, grid inspection has entered an intelligent "sky-ground coordination" phase. Sitech employs drones equipped with X-ray flaw detection robots for high-altitude health checks. On a 110kV transmission line in Xinjiang, a full scan of tension clamp joints on a single tower can be completed within 15 minutes, with real-time imaging analysis conducted via ground terminals.

This technology compresses a traditionally two-hour power outage inspection process into a 30-minute live-line operation, significantly improving efficiency while completely eliminating risks associated with high-altitude work and power interruptions. Currently, this solution has been scaled for application in Northwest China's UHV transmission corridors, providing reliable technical support for stable grid operations during peak winter periods.

For various line types and complex tower environments, Sitech has achieved live-line X-ray inspection via drones for both single and multiple split conductors, with support for remote mounting and positioning of imaging panels, further enhancing operational safety and adaptability.

2. Technological Leap: From Manual Climbing to Sky-Ground Coordination

Smart Surveying, Safety First:
Reconnaissance drones quickly survey line environments and implement safety controls before operations, providing data support for precise equipment delivery.

Heavy-Duty Delivery, Reliable Takeoff:
Heavy-duty drones carry integrated X-ray flaw detection robot systems, ensuring stable takeoff and safe delivery of core equipment to the work area.

Dual-Drone Coordination, Precise Mounting:
Primary and secondary drones work in tandem to achieve millimeter-level precise placement and non-destructive attachment of inspection robots on high-voltage conductors.

Real-Time Imaging, Flaws Uncovered:
Ground-based remote control guides the robot to complete X-ray penetration scans, with internal cracks, strand breaks, and poor crimping clearly displayed in real-time.

Automatic Retrieval, Closed-Loop Delivery:
Upon completion, drones automatically retrieve the equipment. The inspection data is analyzed by the team to generate diagnostic reports, achieving an efficient closed loop from inspection to decision-making.

3. Value Map: Empowering a New Paradigm for Transmission Line Inspection

Safety Revolution:
Completely eliminates traditional high-risk tower climbing, enabling "zero-contact, zero-risk" operations and ensuring full personnel safety.

Efficiency Revolution:
Breaks through power outage constraints, increasing efficiency multiple times compared to traditional methods, and achieves "zero-perception" live-line inspection for users.

Transparent Diagnostics:
X-ray penetration imaging accurately captures hidden defects such as poor crimping and internal cracks, making the "health status" of hardware instantly clear.

Intelligent Empowerment:
Drives the evolution of transmission line inspection toward digitalization, remote operation, and unmanned systems, injecting intelligent momentum into the new power system.

4. Case Examples

Critical Defect: Fractured steel core in a tension clamp joint

Severe Defect: Partially dispersed strands and uneven crimping grooves in a tension clamp joint

Severe Defect: Incomplete crimping in a tension clamp joint

Every leap in technology reshapes the boundaries of power services. Sitech will continue to explore an integrated "air-ground" smart inspection system, striving to achieve zero-risk operations with millimeter-level precision. Through practical action, we are committed to safeguarding the safe and stable operation of main power grids and injecting cutting-edge technological momentum into the construction of a new power system.

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