Electric Motor Testing Procedure

The page top photo was taken of of an oil burner electric motor not an air conditioning blower fan motor or pump motor but you ll see that all of these electric motors look a lot alike.

Electric motor testing procedure.

Minimum test value for a good electric motor is at least 1mω running amps test with the motor running check the full load amps fla with a suitable meter or preferably a clamp on meter and compare with the motor name plate fla. Knowledge of the basics together with powerful new test equipment vastly simplifies the job. The windings are marked with tags u 1 and u 2 v 1 and v 2 w 1 and w 2. See how to measure insulation resistance of electric motor running amps test with the motor running check the full load amps fla with a suitable meter or preferably a clamp on meter and compare with the name plate fla.

And press a test probe to this spot and the other test probe to each of the motor leads one at a time. Testing electric motors doesn t have to be a mystery. Minimum test value of motor insulation resistance is 1 meg ohm 1 mω. The bearings allow the shaft or rotor assembly to turn freely and smoothly in the frame.

Electrical motor is the common used in industry all over the world it very important device to made production smoothly to ensure the electrical motor condition is good or not we must know how to testing it. This article series gives electric motor start run capacitor and hard. Each motor has 3 separate windings. For a three phase motor the isolation resistance can usually be measured between each motor winding or phase and between each motor stage and motor frame earth by an insulation tester or megger 4.

The electrician or maintenance person must have this skill to determine the electrical motor condition defected or cannot use anymore it can save. 3 phase motor testing procedure the patriot mill turn and turnado machines are equipped with 3 phase motors. In the running configuration the windings are joined with metal jumpers. Many electric motor failures are caused by bearing failures.

Home technical articles testing and commissioning procedure for electric motors scope of motor testing it should be noted that the scope of motor testing depends upon the motor type and size this being indicated on the inspection forms. In order to properly test the motor you must remove. A c electric motor troubleshooting guide test procedures in this article we provide a diagnostic guide to determine and repair problems with electric motors. Deviations from rated fla could signify problems with the motor under test.

So when a motor fails to operate it may not be obvious what the problem is. Check c to e s to e r to e. Loss of insulation resistance of an electric motor is one of the first signs of motor failure. Electric motors have had a reputation for being a mix of science and magic.