Mu dera la AC, pali mitundu iwiri ya mphamvu zamagetsi zomwe zimaperekedwa ku katundu kuchokera kumagetsi: imodzi ndi mphamvu yogwira ntchito ndipo ina ndi mphamvu yogwira ntchito.Pamene katunduyo ndi katundu wotsutsa, mphamvu yogwiritsidwa ntchito ndi mphamvu yogwira ntchito, pamene katunduyo ali ndi capacitive kapena inductive katundu, kumwa ndi mphamvu yogwira ntchito.Mphamvu yamagetsi yamagetsi komanso yapano mu gawo lomwelo (mphamvu ya AC ndiyo kusiyana pakati pa mphamvu yogwira ndi yotakataka), voteji ikadutsa pano, ndi mphamvu yochititsa chidwi;mphamvu ikadutsa voteji, ndi capacitive zotakataka mphamvu.

Mphamvu yogwira ntchito ndi mphamvu yamagetsi yomwe imafunika kuti ikhale yogwira ntchito bwino pazida zamagetsi, ndiko kuti, kutembenuka kwa mphamvu yamagetsi kukhala mitundu ina ya mphamvu (mawotchi, kuwala, kutentha) kwa mphamvu zamagetsi.Mwachitsanzo: 5.5 kilowatts yamagetsi yamagetsi ndi 5.5 kilowatts ya mphamvu yamagetsi imasinthidwa kukhala mphamvu yamakina, kuyendetsa mpope popopa madzi kapena makina opunthira;zida zosiyanasiyana zowunikira zidzasinthidwa kukhala mphamvu zowunikira, kuti anthu azikhala ndi ntchito zowunikira.

Mphamvu yogwira ntchito ndizosamveka;ndi mphamvu yamagetsi yomwe imagwiritsidwa ntchito posinthanitsa magawo amagetsi ndi maginito mkati mwa dera ndikukhazikitsa ndi kusunga mphamvu ya maginito pazida zamagetsi.Sizimagwira ntchito kunja, koma zimasinthidwa kukhala mphamvu zina.Chida chilichonse chamagetsi chokhala ndi koyilo yamagetsi chimagwiritsa ntchito mphamvu zokhazikika kuti zikhazikitse mphamvu yamaginito.Mwachitsanzo, nyali ya fulorosenti ya 40-watt imafuna mphamvu yopitilira 40 ya mphamvu yogwira ntchito (ballast imafunikanso kudya mbali ya mphamvu yogwira) kuti itulutse kuwala, komanso imafunikanso mphamvu zokwana 80 kuti koyilo ya ballast ikhazikitse maginito osinthasintha. munda.Chifukwa sichigwira ntchito zakunja, kungotchedwa "zotakataka".