Mumuzunguruko wa AC, hari ubwoko bubiri bwamashanyarazi butangwa kumuzigo uva mumashanyarazi: imwe ni imbaraga zikora nizindi ni reaction.Iyo umutwaro urwanya umutwaro, imbaraga zikoreshwa nimbaraga zikora, mugihe umutwaro ari capacitif cyangwa umutwaro wa inductive, imikoreshereze ni imbaraga zidasanzwe.Imbaraga zingufu zumuriro nicyuma mugice kimwe (AC power ni itandukaniro riri hagati yingufu zikora kandi zidasanzwe), iyo voltage irenze iyumuyaga, ni imbaraga zidasanzwe;iyo ikigezweho kirenze voltage, ni capacitive reactive power.

Imbaraga zifatika nimbaraga zamashanyarazi zisabwa kugirango imikorere isanzwe yibikoresho byamashanyarazi, ni ukuvuga guhindura ingufu zamashanyarazi mubundi buryo bwingufu (ingufu za mashini, ingufu zoroheje, ubushyuhe) bwingufu zamashanyarazi.Kurugero: 5.5 kilowat ya moteri yamashanyarazi ni kilowat 5.5 yingufu zamashanyarazi zihindurwamo ingufu za mashini, gutwara pompe kuvoma amazi cyangwa gukubita imashini ikubita;ibikoresho bitandukanye byo kumurika bizahindurwa ingufu zoroheje, kugirango abantu babeho kandi bamurikire.

Imbaraga zifatika zirarenze;nimbaraga zamashanyarazi zikoreshwa muguhana amashanyarazi na magneti mumuzunguruko no gushiraho no kubungabunga umurima wa magneti mubikoresho byamashanyarazi.Ntabwo ikora hanze, ahubwo ihindurwa mubundi buryo bwingufu.Igikoresho icyo aricyo cyose cyamashanyarazi gifite igiceri cya electromagnetic gikoresha imbaraga zidasanzwe kugirango zishyireho imbaraga za rukuruzi.Kurugero, itara rya 40 watt fluorescent risaba watt zirenga 40 zingufu zikora (ballast nayo igomba gukoresha igice cyingufu zikora) kugirango itange urumuri, ariko kandi bisaba imbaraga zigera kuri 80 zifatika kugirango igipande cya ballast gishyiraho ubundi buryo bwa magneti. umurima.Kuberako idakora imirimo yo hanze, gusa yitwa "reaction".