Electric Motor Testing Procedure Pdf

3 phase motor testing procedure the patriot mill turn and turnado machines are equipped with 3 phase motors.

Electric motor testing procedure pdf.

So when a motor fails to operate it may not be obvious what the problem is. Each motor has 3 separate windings. Verify scribe on the rotor shaft is correct to indicate the magnetic center of the motor as applicable. Experience is the best teacher in setting up the scheduled periods for your equipment.

That is with the same test connections and with the same test voltage applied for the same length of time. Guide for the use of electric motor testing methods based on iec 60034 2 1 p ll determined from residual loss 8 2 2 5 1 in table 2 may 2011 version 1 1 document developed as part of the electric motor systems annex emsa task c testing centres under the iea implementing agreement for a co operating programme on. Test to obtain more reliable values ranges of both wattmeter should be 10a 250v for blocked rotor test. Testing electric motors doesn t have to be a mystery.

The windings are marked with tags u 1 and u 2 v 1 and v 2 w 1 and w 2. Record results on attachment 3 of this procedure. 3 phase motor troubleshooting pdf 3 phase motor winding resistance values 3 phase testing procedure how to test a 3 phase motor with a megger how to test motor windings single phase motor insulation resistance test procedure motor megger test results types of motor testing. Electric motors have had a reputation for being a mix of science and magic.

Ss95211 authorized licensed use limited to. In order to properly test the motor you must remove. To obtain short circuit current and its power factor angle block rotor test is performed on the motor. You should make these periodic tests in the same way each time.

For motors 25 hp or greater record motor vibration measurements in accordance with the test equipment manufacturer s instruction manual. With the motor at normal operating temperature the vibration velocity shall not exceed 2 8 mm s rms or 4 mm s peak in any direction. In the running configuration the windings are joined with metal jumpers. Ieee standard test procedure for polyphase induction motors and generators 3 park avenue new york ny 10016 5997 usa ieee power engineering society sponsored by the electric machinery committee 4 november 2004 print.

Knowledge of the basics together with powerful new test equipment vastly simplifies the job.