Definition of Infrared ThermographyInfrared thermography is equipment or method, which detects infrared energy emitted from object, converts it to temperature, and displays image of temperature distribution.
Characteristics of Infrared Thermography equipmentIt captures as a temperature distribution on a surface,and it can display as a visible information. Temperature can be measured from a distance without contacting an object. Temperature can be measured in real time.
Merits of Infrared Thermography equipmentThermal imagers are most commonly used for inspecting the integrity of electrical systems because test procedures are noncontact and can be performed quickly. Most electrical thermography work is qualitative, that is, it simply compares the thermal signatures of similar components. A thermal signature is a snapshot at a single point in time of the heat being given off, or emitted, from an object. It is straightforward with three-phase electrical systems because under normal conditions the phases almost always have easily understood thermal signatures. Thermography is particularly effective because equipment failures often have clear, recognizable thermal signatures. Furthermore, thermal exceptions appear even where visible inspection shows very little, if anything. A thermal exception is an abnormal or suspect condition that is present in equipment. Although thermal exceptions may not always be detectable,or the root cause well understood, there is no doubt that the heat produced from high electrical resistance typically precedes electrical failures.
Circulation Pump running hot
This motor is overheating because a bearing has failed
Overloaded electrical cct
Racoons got into the wall