Ukulahleka kwesistimu ye-excitation kuyakhululeka futhi ukusebenza kahle kuyathuthukiswa; izinga eliphelele lokonga amandla ngu-10-50%.
I-excitation winding kanye nokunikezwa kwamandla okuvusa amandla kukhululiwe, isakhiwo silula futhi ukusebenza kunokwethenjelwa.
Imoto kazibuthe yomhlaba engavamile ihlangene ngesakhiwo, incane ngosayizi futhi ilula ngesisindo; isisekelo sincishiswa ngamasayizi angu-1-2.
Ubukhulu nokuma kwe-motor kuyaguquguquka futhi kuhlukahlukene; ngokwezifiso okungajwayelekile kungenzeka.