Application of Infrared Thermometer in Electrical System Fault Diagnosis
Tools for diagnosing and preventing electrical system and equipment failures
In the maintenance and inspection of electrical systems and equipment, infrared thermometers have proven to be a cost-effective diagnostic and preventive tool. The accuracy of the full line long infrared thermometer is 1-4% of the reading, and it can be measured from a distance of 180 feet depending on the model. These instruments are light in weight and have rough anti slip markings on the surface, making them easy to use.
Measuring electrical equipment
A non-contact infrared thermometer can measure the surface temperature of an object from a distance of * *, making it an indispensable tool in electrical equipment maintenance operations.
Application in Electrical Equipment
In the following applications, infrared thermometers can effectively prevent equipment failures and unplanned power outages.
The connector electrical connection area will gradually loosen the connector due to repeated heating (expansion) and cooling (contraction) generating heat, surface dirt, carbon deposition, and corrosion. A non-contact thermometer can quickly determine the temperature rise indicating a serious problem.
Electric motor - To maintain the lifespan of the motor, check if the temperature of the power supply connection wire and circuit breaker (or fuse) is consistent.
Motor bearings - Check for hot spots and regularly repair or replace them before any problems occur that cause equipment malfunction.
Motor coil insulation layer - extends its lifespan by measuring the temperature of the motor coil insulation layer.
Measurement between phases - Check if the temperature between the wires and connectors of induction motors, large computers, and other equipment is the same.
The winding of the transformer air cooling device can be directly measured with an infrared thermometer to detect excessive temperature, and any hot spot indicates damage to the transformer winding.
Uninterruptible Power Supply - Determine the hotspot of the connection line on the UPS output filter. A low temperature point indicates that the DC filtering circuit may be open.
Backup Battery - Check the low-voltage battery to ensure proper connection. Contact with the battery connector may heat up enough to burn the battery core.
Ballast - Check for overheating before the ballast begins to smoke.
Utilities - Identify hotspots for connectors, wire joints, transformers, and other equipment. Some models of optical instruments have a range of 60:1 or even larger, making almost all measurement targets within the measurement range.
