Nyob rau hauv ib lub voj voog AC, muaj ob hom hluav taws xob xa mus rau cov khoom siv hluav taws xob: ib qho yog lub zog siv hluav taws xob thiab lwm yam yog lub zog reactive.Thaum lub load yog resistive load, lub hwj chim noj yog active zog, thaum lub load yog capacitive los yog inductive load, lub noj yog reactive zog.Lub zog hluav taws xob hluav taws xob thiab tam sim no nyob rau tib theem (AC lub zog yog qhov sib txawv ntawm lub zog ua haujlwm thiab lub zog reactive), thaum qhov hluav taws xob ntau tshaj qhov tam sim no, nws yog inductive reactive zog;Thaum cov tam sim no tshaj qhov voltage, nws yog capacitive reactive zog.

Lub zog hluav taws xob yog lub zog hluav taws xob uas yuav tsum tau ua kom lub cev ua haujlwm ntawm cov khoom siv hluav taws xob, uas yog, hloov hluav taws xob hluav taws xob mus rau lwm hom hluav taws xob (tshwj xeeb lub zog, lub teeb lub zog, kub) ntawm hluav taws xob hluav taws xob.Piv txwv li: 5.5 kilowatts ntawm lub tshuab hluav taws xob yog 5.5 kilowatts ntawm hluav taws xob hluav taws xob hloov mus rau hauv lub tshuab hluav taws xob, tsav lub twj tso kua mis rau cov twj tso kua mis los yog lub tshuab threshing;ntau yam khoom siv teeb pom kev zoo yuav hloov mus rau hauv lub teeb lub zog, rau tib neeg nyob thiab ua haujlwm teeb pom kev zoo.

Reactive hwj chim yog ntau paub daws teeb;nws yog lub zog hluav taws xob siv rau kev sib pauv ntawm hluav taws xob thiab sib nqus teb nyob rau hauv ib lub voj voog thiab tsim thiab tswj cov hlau nplaum hauv cov khoom siv hluav taws xob.Nws tsis ua hauj lwm sab nraud, tab sis yog hloov mus rau lwm yam kev siv zog.Txhua yam khoom siv hluav taws xob nrog lub tshuab hluav taws xob electromagnetic siv lub zog reactive los tsim ib qho chaw sib nqus.Piv txwv li, 40-watt fluorescent teeb yuav tsum muaj ntau tshaj 40 watts ntawm lub zog ua haujlwm (lub ballast kuj yuav tsum tau siv ib feem ntawm lub zog siv hluav taws xob) kom tawm lub teeb, tab sis kuj xav tau txog 80 reactive zog rau lub ballast coil los tsim ib qho kev sib nqus sib nqus. teb.Vim nws tsis ua hauj lwm sab nraud, tsuas yog hu ua "reactive".