Three-phase motor speed measured with a multimeter

Published:2012/11/20 1:58:00 Author:Ecco | Keyword: Three-phase , motor speed , multimeter | From:SeekIC

In the Figure, μA uses the multimeter 50μA block ( it is also available to use 1mA block ). It is connected with any winding of three-phase stator windings, then slowly turning the motor rotor can make rotor run in the uniform speed. There is always a certain amount of remanent magnetization of the used motor, when the rotor is rotated, the magnetic force will cut lines, then the electromotive force is induced in the stator windings, there is current flowing through the ammeter swing.



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