Fires from poorly installed electrical equipment are relatively common but are a very underestimated phenomenon in industrial environments. They may only result in a short shut-down without serious financial impacts or injury, but they may also result in large fires with fatal injuries. Most problems can be avoided by regular monitoring of electrical installations and by repairing any faults or damages if needed. For the inspection of electrical installations, thermography has been used for several decades. Nowadays, it is considered a proven method. The temperature of an object is determined by measuring the intensity of thermal radiation produced by any given surface of the object with a thermal camera, followed by the calculation of surface temperatures (quantitative method). The severity of a defect can be determined by the temperature shown on by the thermal camera.
It is still not clear how to control facilities which are in high positions, under high voltage or located in areas which are difficult to access. How do you control high-altitude devices which are under high voltages and are in areas which are difficult access? How do you check power lines in a transformer station where the whole system occupies a large area and the control elements are difficult to access?
For high-voltage power lines and places where there is an issue of poor access to controlled elements, Workswell s.r.o. provides an elegant and precise solution – attaching a thermocouple system to an unmanned airplane (drone or UAV). The Workswell WIRIS – a lightweight compact thermo-camera equipped with visible spectrum cameras, thermo-cameras and controls allows the user to quickly check hard-to-reach power lines in high heights safely. During the flight, you can watch live images from both the thermo and full visible spectrum cameras, record the whole flight, and then analyse and identify damaged areas. Using a thermocouple drone eliminates the problem of inaccessible terrain and large complex areas of transformer stations. The controller allows the entire system to be operated from a safe distance without causing any discomfort that a conventional ground inspection would.