Kumjikelezo we-AC, kunezinhlobo ezimbili zamandla kagesi anikezwa umthwalo osuka esiphakelini samandla: eyodwa ingamandla asebenzayo kanti enye ingamandla asebenzayo.Uma umthwalo ungumthwalo ophikisayo, amandla asetshenzisiwe angamandla asebenzayo, lapho umthwalo unamandla noma umthwalo we-inductive, ukusetshenziswa kungamandla asebenzayo.I-voltage yamandla asebenzayo kanye namanje esigabeni esifanayo (amandla e-AC angumehluko phakathi kwamandla asebenzayo nasebenzayo), lapho i-voltage idlula imanje, ingamandla asebenzayo angenisayo;lapho i-current idlula i-voltage, ingamandla asebenzayo e-capacitive.

Amandla asebenzayo amandla kagesi adingekayo ukuze kugcinwe ukusebenza okuvamile kwempahla kagesi, okungukuthi, ukuguqulwa kwamandla kagesi abe ezinye izinhlobo zamandla (amandla emishini, amandla okukhanya, ukushisa) kwamandla kagesi.Isibonelo: 5.5 kilowatts wemoto kagesi ungama-kilowatts angu-5.5 wamandla kagesi aguqulwa abe amandla omshini, ukushayela iphampu ukupompa amanzi noma umshini wokubhula;imishini yokukhanyisa ehlukahlukene izoguqulwa ibe amandla okukhanya, ukuze abantu baphile futhi basebenze ukukhanyisa.

Amandla asebenzayo angabonakali;amandla kagesi asetshenziswa ukushintshanisa izindawo zikagesi nezikazibuthe ngaphakathi kwesekhethi kanye nokusungula nokugcina amandla kazibuthe ezintweni zikagesi.Ayisebenzi ngaphandle, kodwa iguqulwa ibe ezinye izinhlobo zamandla.Noma iyiphi idivayisi kagesi enekhoyili kagesi idla amandla asebenzayo ukuze isungule inkambu kazibuthe.Isibonelo, isibani se-fluorescent esingu-40-watt sidinga ngaphezu kwama-watts angu-40 wamandla asebenzayo (i-ballast idinga ukusebenzisa ingxenye yamandla asebenzayo) ukuze ikhiphe ukukhanya, kodwa futhi idinga amandla asebenzayo angaba ngu-80 ukuze ikhoyili ye-ballast isungule enye indlela kazibuthe. inkambu.Ngoba ayenzi umsebenzi wangaphandle, kuphela ukubizwa ngokuthi "reactive".