toolkit, the O & M team developed a“ proactive prevention” strategy that balances inspection efficiency and accuracy while significantly reducing O & M costs and time.
Temperature anomalies caused by deformation or loose components are revealed with thermal imaging, enabling timely adjustment to reduce power loss.
Module Inspection: Locating Faults in Core Power-Generating Units Hot-Spot Effect Detection Issues such as shading, damage, or diode failure all appear as hotspot areas with > 5 ° C temperature difference through a thermal imaging camera. The Flir T540 accurately identifies these zones, enabling repairs within 24 hours and preventing 20 %– 50 % power loss.
Battery Bank Inspection The T540 detects localized overheating or abnormal temperature rise, preventing performance degradation or damage.
Micro-crack and Cold-Solder Detection Micro-cracks or cold-solder joints create linear or mesh-like low-temperature patterns(~ 1 ° C difference). The
T540 captures these subtle defects, enabling repairs within 72 hours and extending module lifespan.
PID Degradation Detection PID causes stripe-shaped hightemperature zones along module edges. The T540 clearly reveals these
patterns, allowing resolution within 7 days to prevent further degradation.
Equipment Inspection: Ensuring Stable Operation of Critical Devices
Inverter and Transformer-Box Inspection
Overheating points on heat sinks and terminals are all detectable through thermal imaging, preventing equipment burnout and improving conversion efficiency by 3 %– 5 %.
Insulated Busbar Inspection Poor contact or insulation aging early can be detected on the T540, preventing short circuits or fire hazards.
SVG and Incoming Cables Abnormal temperature rises in SVG power modules, reactors, and cable joints can be caught early, preventing degradation and downtime.
Safer Inspections With the dual FOV lens, the T540 enables users to detect short-circuits early while operating the camera from a safe distance.
Support Structure and Mechanical Inspection
Transmission Line Inspection Hotspots caused by poor contact or overload on transmission lines can be easily identified for repair.
From the real-world case above, it is clear that the Flir T540 professional infrared thermal camera, combined with the FlexView dual field-of-view lens, reshapes the PV operation and maintenance system. By enhancing power generation efficiency, reducing O & M costs, strengthening safety risk control, the T540 drives the industry toward a“ proactive prevention” model through technological integration and scenario expansion— ultimately enabling high-quality development.
For further information, please visit www. teledyneflir. com
Issue 82 PECM 91