Kwisekethe ye-AC, kukho iintlobo ezimbini zamandla ombane anikezelwe kumthwalo ovela kumandla ombane: enye ingamandla asebenzayo kwaye enye inamandla asebenzayo.Xa umthwalo ungumthwalo ochasayo, amandla asetyenzisiweyo angamandla asebenzayo, xa umthwalo unamandla okanye umthwalo owenziweyo, ukusetyenziswa kwamandla asebenzayo.I-voltage yamandla esebenzayo kunye neyangoku kwisigaba esifanayo (amandla e-AC ngumahluko phakathi kwamandla asebenzayo kunye asebenzayo), xa i-voltage idlula yangoku, yi-inductive reactive power;xa umsinga udlula i-voltage, i-capacitive reactive power.

Amandla asebenzayo ngamandla ombane afunekayo ukugcina ukusebenza okuqhelekileyo kwezixhobo zombane, oko kukuthi, ukuguqulwa kwamandla ombane kwezinye iindlela zamandla (amandla omatshini, amandla okukhanya, ubushushu) bamandla ombane.Umzekelo: i-5.5 kilowatts yemoto yombane yi-5.5 kilowatts yamandla ombane iguqulwa ibe amandla omatshini, ukuqhuba impompo ukumpompa amanzi okanye umatshini wokubhula;izixhobo ezahlukeneyo zokukhanyisa ziya kuguqulwa zibe amandla okukhanya, ukuze abantu baphile kwaye basebenze ukukhanya.

Amandla asebenzayo ayinto engabonakaliyo;Ngamandla ombane asetyenziselwa ukutshintshiselana ngombane kunye nomhlaba wemagnethi ngaphakathi kwesekethe kunye nokuseka nokugcina indawo yombane kwisixhobo sombane.Ayisebenzi ngaphandle, kodwa iguqulwa ibe ezinye iindlela zamandla.Nasiphi na isixhobo sombane esinekhoyili ye-electromagnetic sisebenzisa amandla asebenzayo ukuseka indawo yamagnetic.Umzekelo, isibane se-fluorescent se-40-watt sidinga ngaphezulu kwe-watts ezingama-40 zamandla asebenzayo (i-ballast nayo ifuna ukusebenzisa inxenye yamandla asebenzayo) ukuze ikhuphe ukukhanya, kodwa ikwafuna malunga nama-80 amandla asebenzayo kwikhoyili ye-ballast ukuseka imagnethi etshintshanayo. intsimi.Ngenxa yokuba ayenzi umsebenzi wangaphandle, kuphela ukubizwa ngokuthi "i-reactive".