UV inspection for corona detection on high-voltage lines via UAV
Drone Division developed a global methodology for UV inspection on overhead power lines.
UV detection is an important technology used on high-voltage lines for detecting corona.
Corona is a phenomenon associated with all transmission lines. Under certain conditions, the local electric field near energised components and conductors can produce a small electrical discharge or corona, causing the surrounding air molecules to ionise or undergo a small local change in electrical charge. The level of field strengths generally depends on the geometry of the situation. The ionisation of air around a conductor is dangerous because it can form an invisible discharge path.
Detection reduces power outages and improves grid reliability
High-voltage lines are critical infrastructure and it is important to keep them in good condition. However, inspecting these lines is both time-consuming and dangerous. UV detection offers a solution to this by providing real-time monitoring of the condition of the lines.
UV detection works by detecting ultra-violet radiation emitted by the insulation of high-voltage cables. When the insulation is exposed to high temperatures or damaged, UV radiation can be released. Using a dedicated camera on a drone, Drone Division identifies, manages and locates specific problems.
This system is an efficient and effective way to monitor the condition of lines. It not only provides a safer working environment for operators but also improves the reliability and availability of electricity supply. It is an important tool for high-voltage infrastructure operators.
Corona detection with UV-Camera
Clear visible damage
INSPECT your assets quickly and securely
In-House developed methodology and drone flight procedures for maximum data analysis and reporting with custom annotations.
On-site time and cost savings; increase safety and productivity:
🏋️ 0% downtime
👷🏽 100% employee safety
💥 up to 300% faster than regular inspections
🥂 Reduce costs by 200%
Measure and analyse
Quickly analyse your annotations, anomalies and structures.
In-house developed solutions reduce your time and resources by providing customised datasets for building strong reports.
✅ Detailed identification and location data
✅ Millimetre-accurate measurements possible
✅ Simple data enrichment
✅ Automated nomenclature of data and files
✅ Always & everywhere available for your team and stakeholders
REPORT according to your needs
Automated customised reporting for fast decision-making and documentation.
Detailed data export to your systems possible.
Proven and used by top TSO companies for authorised asset management.
How corona discharges can affect your infrastructure:
⚠️ Power loss
⚠️ Increased audible noise
⚠️ Electromagnetic interference
⚠️ Insulation failure
⚠️ Equipment failure
⚠️ Environmental concerns
The advantage of corona inspection:
A detection by a UV camera always indicates a structural or electrical defect.
The ROI of corona detection for asset management overhead lines is positive as corona inspections:
✅ Improved power transmission efficiency
✅ Reduced maintenance costs
✅ Increased asset reliability
By detecting corona discharges and addressing any problems at an early stage, asset managers can help extend the life of their overhead lines and minimise the risk of equipment failure and unplanned downtime.
This can lead to significant cost savings and improve the overall reliability and performance of the power transmission system.