Which facilities require infrared thermal imaging inspection.
1. Various electrical devices: hidden dangers such as loose or poor connections, unbalanced loads, overloads, overheating, etc. can be found. The potential effects of these hidden dangers are the generation of electric arcs, short circuits, burns, and fires. Their average repair cost is 10000 to 50000 yuan; Replacement costs 80000-100000 yuan, with a construction period of several weeks to months.
2. Transformer: Hidden dangers that can be detected include loose joints, overheating of bushings, poor contact (tap changer), overload, unbalanced three-phase load, and blocked cooling pipes. Its effects include arcing, short circuit, burning, and ignition. Rewinding requires tens of thousands of yuan in funding, replacing it with hundreds of thousands of yuan, with a construction period of several weeks or months.
3. Electric motors and generators: Hidden dangers that can be found are excessive bearing temperature, unbalanced load, short circuit or open circuit of windings, heating of carbon brushes, slip rings and collector rings, overload and overheating, and blockage of cooling pipelines. The impact is that faulty bearings can cause damage to the iron core or winding ring, while faulty carbon brushes can damage the slip ring and collector ring, thereby damaging the winding coil. It may also cause damage to the driving target. The cost of rewinding the motor coil (5000 horsepower) is tens of thousands of yuan, and replacing it requires hundreds of thousands of yuan, with a construction period of several weeks to several months.
4. Various transmission equipment, such as transmissions, traction machinery, etc.
For all devices that can be directly seen, the infrared thermal imager can determine the thermal hazards at all connection points. For those parts that cannot be directly seen due to shielding, their thermal hazards can be identified based on their heat conduction to external components. Comparison: In traditional methods, there is no other way to conduct operational testing of circuit breakers, conductors, busbars, and other components except for disassembly inspection and cleaning of joints.
In addition, using an infrared thermal imager instead of traditional methods for cleaning and fastening can save a lot of costs. There are two reasons for this savings:
Firstly, the infrared thermal imager inspection is carried out very quickly, unlike traditional methods that require a lot of manpower to clean and tighten the equipment.
In addition, during the inspection of infrared thermal imagers, the equipment is not required to be powered off, but only after identifying hidden dangers and conducting repairs, a short power outage is required,
Moreover, the power outage to repair individual hidden dangers is only localized, and the duration of the power outage is very limited, and it may even be arranged for repairs within the planned power outage time.
