Oonobangela beisigaba sesithathu AC motorukudinwa kunokwahlulwa kube ngumthwalo, unikezelo lwamandla, ukugqunywa kwemoto, kunye nokulahleka kwesigaba.
Isigaba sesithathu somthwalo we-AC motor (umthwalo ogqithisiweyo) wokutshiswa: Ngaphantsi kokusebenza ngokugqithisileyo, i-motor iyatshisa. Okanye i-motor iqala rhoqo kwaye i-motor iyatshisa kakhulu. Xa zombini iziphelo ze-stator zitshisiwe ngaphakathi kwemoto kwaye iindawo ezitshisiweyo zifana (ngokukodwa, i-motor inamandla okusebenza angatshintshiyo, abizwa ngokuba ngamandla alinganisiweyo, kwii-watts (w), kwaye kwezinye iimeko amandla okwenene asetyenziswa yimoto angaphezulu kwamandla alinganisiweyo emoto, le nto ibizwa ngokuba yi-motor overload. Izizathu zesigaba sesithathu se-AC motor amandla aphantsi, i-voltage yangoku iba yi-motor lighter, i-voltage yangoku iyancipha kakhulu, i-voltage yangoku I-voltage yonikezelo lwamandla iphezulu kakhulu, kwaye umatshini we-barbecue uyavutha okanye i-motor isebenza ngokulahlekelwa kwesigaba.
Izizathu zesigaba sesithathu se-AC ye-motor insulation: I-insulation yangaphakathi ye-motor ayihambisani nomgangatho, kwaye kukho isiphaluka esifutshane sesigaba ukuya kwisigaba phakathi kokujika. Okanye i-wiring yangaphakathi ayilunganga. Lo matshini webarbecue ngamanye amaxesha ubhideka ngokulula kunye nomatshini webarbecue ogqithisiweyo, kwaye i-stator iya kutshisa, kodwa kukho amanqaku acacileyo okutsha kwindawo emfutshane, efana nentsimbi etyhidiweyo yobhedu ngamanye amaxesha. Indawo ejikajikayo itshiswe kakubi. Izizathu zokutshiswa kwemoto ye-AC yesigaba esithathu zezi: 1. Iinjini yombaneyamkela iuqhagamshelo lwe-delta (isigaba esi-3)indlela, kwaye isigaba esinye kuphela sokujingisa sinokutshiswa. Sebenzisa i-megohmmeter ukulinganisa umonakalo we-insulation wesigaba esinye sokujija emhlabeni. 2. I-motor ithatha inkwenkwezi (y) indlela yokudibanisa, kwaye izigaba ezibini zokujikeleza zitshiswa. Ungasebenzisa i-megohmmeter (iwotshi) ukulinganisa umonakalo we-insulation of the phases of the winding to the ground.