Arrangement for measuring the slip of electric induction motors

Details Arrangement for measuring the slip of electric induction motors Arrangement for measuring the slip of electric induction motors

G - Physics

01

R

324/17

G01R 31/34 (2006.01) H02P 23/08 (2006.01)

Patent

CA 1292279

Abstract of the Disclosure An arrangement for measuring the slip of electric induction motors determines the relative measure of the difference between rotary field speed and rotor speed of induction motors by utilizing the nonlinearity effects of the magnetization characteristics of ferromagnetic materials. Slip-proportional current and/or voltage signals are detected at the terminals of the induction motor. By suitable processing of these slip-proportional signals, such as frequency conversion and filtering, a frequency-proportional measure of the slip is provided which is then subjectable to measuring or further processing.

579443

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