Electric Motor Testing Procedure Pdf

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

Electric motor testing procedure pdf.

So when a motor fails to operate it may not be obvious what the problem is. 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. 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. Similarly the range of ammeter and voltmeter during blocked rotor test 10a 250v.

Experience is the best teacher in setting up the scheduled periods for your equipment. Pump motor or a short control cable may be vital to a process in your plant. 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.

To obtain short circuit current and its power factor angle block rotor test is performed on the motor. Test to obtain more reliable values ranges of both wattmeter should be 10a 250v for blocked rotor test. In order to properly test the motor you must remove. Each motor has 3 separate windings.

3 phase motor testing procedure the patriot mill turn and turnado machines are equipped with 3 phase motors. Record results on attachment 3 of this procedure. That is with the same test connections and with the same test voltage applied for the same length of time. For motors 25 hp or greater record motor vibration measurements in accordance with the test equipment manufacturer s instruction manual.

Electric motors have had a reputation for being a mix of science and magic. Ss95211 authorized licensed use limited to. You should make these periodic tests in the same way each time. Verify scribe on the rotor shaft is correct to indicate the magnetic center of the motor as applicable.

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.