Evaluación de pérdidas energéticas en motores eléctricos trifásicos asíncronos utilizando análisis termográficos.

Abstract

This paper will present the states of asynchronous electric motors that through a thermographic study and electrical tests we will analyze the possible failures that can be found in them, electric motors are written off before what is established by the manufacturer and This study will present the parameters that must be to reach an approximate useful life through the tests that are going to be performed, the first test is in vacuum where the motor works without load with a nominal voltage to find the currents and powers in the phases , the second test is in a blocked rotor where the motor works with nominal current and the rotor blocks it until the voltages and powers per line are found, the third test is the stator resistance where DC current is injected into the stator to measure the resistance, it will also be known the electrical fundamentals, the operation of an electric motor with its parts that co They report, with their respective electrical, mechanical and thermal losses that occur when they are operating. The thermographic analysis would be carried out to avoid faults found in the equipment, this type of analysis is not harmful to the engine, because it works by infrared radiation, which will be able to observe the hottest points and then diagnose what measures are taken to extend engine life.