Uhlalutyo lwezizathu zeisigaba sesithathu se-asynchronous induction AC motorukudinwa, oonobangela besigaba sesithathu sokutshiswa kwemoto ye-AC inokwahlulwa ibe ngumthwalo, unikezelo lwamandla, ukugqunywa kweemoto, kunye nokulahleka kwesigaba.
Inqanaba lesithathu le-AC motor umthwalo (umthwalo ogqithisileyo) ukudinwa: Imoto iyafudumala xa isebenza ngokugqithisileyo. Okanye i-motor iqalwa rhoqo kwaye ishushu kakhulu. Xa iziphelo zombini ze-stator zitshiswa ngaphakathi kwemoto kwaye iindawo ezitshisiweyo zifana (ngokukodwa, i-motor inamandla okusebenza rhoqo, ebizwa ngokuba ngamandla alinganisiweyo, kwii-watts (W), kwaye kwezinye iimeko xa amandla okwenene asetyenziswa yimoto edlula amandla alinganisiweyo emoto, le nto ibizwa ngokuba yi-motor overload. Ikaliwe, kwaye i-motor iyatshisa kakhulu, kwaye umatshini we-barbecue uvutha kwisigaba esingekhoyo yi ngamanye amaxesha ubhideka ngokulula kunye nomatshini webarbecue olayisha kakhulu, kwaye i-stator iya kutsha kwakhona, kodwa kukho amanqaku acacileyo okutsha kwindawo emfutshane, njengentsimbi etyhidiweyo yobhedu ngamanye amaxesha. Indawo ejikajikayo itshiswe kakubi. Izizathu zokutshiswa kweisigaba sesithathu AC motorzezi: 1. I-motor ithatha indlela yokudibanisa i-delta, isigaba esinye kuphela sokutshitshiswa sinokutshiswa, kunye nomonakalo we-insulation wesigaba esinye sokujikeleza emhlabeni unokulinganiswa nge-megohmmeter. 2. I-motor ithatha inkwenkwezi (y) indlela yokudibanisa, kwaye izigaba ezibini zokujikeleza zitshiswa. Umonakalo we-insulation of the two phases of winding to the ground ungalinganiswa nge-megohmmeter (iwashi).