Lolu chungechunge lwenqwaba yokuhlola inqwaba yokushaja ye-AC ikakhulukazi inesilinganiso samandla kagesi wokushaja, isilawuli sesifunda somhlahlandlela (okulawulwa iswishi yokushaja) neminye imisebenzi, ejwayelekile yezigaba ezintathu.Ngokulinganisa i-voltage yokushaja, unganquma ukuthi inqwaba yokushaja iyaphuma njengoba kudingeka.Ngokushintsha iswishi yokushaja, unganquma ukuthi inqwaba yokushaja inika amandla futhi ivala okukhiphayo njengoba kudingeka.Isikimu sephaneli eqondene nomkhiqizo esiboniswe kuMdwebo 1, ikakhulukazi sinesixhumi esibonakalayo sesokhethi yemoto yokushaja i-AC ejwayelekile yase-Europe, iswishi yokulawula isibhamu sepulaki, isilawuli sokushaja, imitha ye-volt ye-AC, ukwakheka kwembobo yokukhulisa umthwalo.