Еквивалентно коло асинхроне машине (систем релативнох јединица)

 

 

fs = (Lm + Lsl)Is + Lm Ir

 fr = Lm Is + (Lm + Lrl)Ir

 

Vs = Rs Is + jws fs

0      = Rr Ir + j(ws-wm) fr

 

Te = k Im[fs* Is] = k Im[Ir*  fr] = k |Ir|2 Rr / (ws-wm)

                                                  

                                               k = 1                   (р.ј.)

                                                  = 3 poles / 4    (SI)