Lezi zinhlaka ezilinganisiwe ngokulandelana zimelela amakhono ahlukene enjini.

Esigabeni segama le-umkhiqizo wemoto, amapharamitha amaningana abalulekile njengamandla alinganisiwe, i-voltage elinganisiwe, i-current rated kanye ne-frequency elinganisiwe yemoto izobekwa. Phakathi kwamapharamitha amaningana alinganisiwe, yi-parameter eyisisekelo esekelwe emandleni alinganisiwe njengohlaka oluyisisekelo; nge-frequency yamandla Imoto, lapho i-voltage elinganisiwe, i-current rated kanye ne-frequency elinganisiwe yemoto ihlangabezana nezidingo, imoto ingasebenza ngokujwayelekile. Ngaphansi kwesimo esilinganisiwe esihambelanayo, imoto ingakhipha i-torque elinganisiwe, ebonakala ngqo ekhonweni lemoto lokudonsa umthwalo. Kuma-frequency motor aguquguqukayo, ngenxa yezici ezishintshayo ze-frequency yamandla okufaka, imodi yokusebenza iyonke yemoto ilawulwa ngaphansi kwe-torque engaguquki kanye nezimo zokusebenza kwe-frequency engaguquki ukuqinisekisa ukuphepha kokusebenza kwemoto. Ngokufingqa nje la mapharamitha alinganisiwe emoto, angahlukaniswa ngezigaba ezimbili: ukuphepha kwemishini kanye nokuphepha kukagesi.

Ukuphepha komshini wemoto kubonakaliswa yi-torque elinganisiwe. Ubukhulu be-torque yemoto buthinta ngqo isimo sesistimu yokuthwala kanye nomgodi ojikelezayo. Isibonelo, kumoto osindayo, kumele ifaniswe nama-bearings angathwala umthwalo omkhulu; lapho i-torque yemoto inkulu, izoba nemiphumela emibi kwikhwalithi yokusebenza kwe-bearings; ngesikhathi esifanayo, ngaphezu kwekhwalithi yokusebenza yesistimu yokuthwala, i-torque enkulu ingabangela ukuthi i-shaft iphambuke noma iphule, ikakhulukazi kuma-shaft ahlanganisiwe, izinga lemiphumela emibi lizoba likhulu.

Ukuphepha kukagesi kwemoto kubonakaliswa yi-voltage elinganisiwe kanye ne-current elinganisiwe. Uma i-voltage elinganisiwe inkulu, i-voltage ephakathi kwama-winding iyanda, okuholela ngqo ekungathembeki kwe-insulation ephakathi kwama-turn; lapho i-motor current inkulu kakhulu, i-winding izothinta ngqo i-current density ngenxa ye-large current factor, futhi i-large current density izobangela ukuthi umqhubi ashise kakhulu, futhi umphumela wokugcina ukwanda kwezinga lokushisa, okusongela kakhulu ukuthembeka kukagesi kwemoto.

Ngakho-ke, kungakhathaliseki ukuthi iyimoto yemvamisa yokuhweba noma iyimoto yemvamisa eguquguqukayo, ukuphepha kokusebenza kwayo kugxile ekuphepheni kwemishini kanye nokuphepha kukagesi. Noma yikuphi ukuphambuka ezimweni ezilinganisiwe kuzoba nemiphumela emibi emotheni.