Fais fab xwm txheej
Qhov luaj li cas ntawm lub zog muaj feem cuam tshuam nrog qhov xwm txheej ntawm lub voj voog. Piv txwv li, lub zog ntawm cov khoom siv hluav taws xob xws li lub teeb ci incandescent thiab cov cua sov ua haujlwm yog 1. Feem ntau, lub zog hluav taws xob ntawm circuits nrog inductive loads tsawg dua 1. Lub zog hluav taws xob yog cov ntaub ntawv tseem ceeb ntawm lub zog hluav taws xob. Lub zog hluav taws xob yog qhov ntsuas qhov ua tau zoo ntawm cov khoom siv hluav taws xob. Qhov tsis zoo ntawm lub zog hluav taws xob qhia tau hais tias lub Circuit Court siv lub zog loj reactive rau kev hloov pauv ntawm qhov chaw sib nqus sib nqus, yog li txo qhov kev siv ntawm cov khoom siv thiab ua rau lub zog poob ntawm cov kab.
Hauv AC Circuit Court, cosine ntawm theem sib txawv (Φ) ntawm qhov hluav taws xob thiab qhov tam sim no yog hu ua lub zog, uas yog sawv cev los ntawm lub cim cosΦ. Hauv cov ntsiab lus ntawm tus lej, lub zog tseem ceeb yog qhov piv ntawm lub zog ua haujlwm rau lub zog pom tseeb, uas yog, cosΦ=P / S.
Qhov yooj yim tshaj plaws tsom xam
Siv cov cuab yeej ua piv txwv. Piv txwv li: Lub zog ntaus ntawv yog 100 units, uas yog, 100 units ntawm lub zog raug xa mus rau lub cuab yeej. Txawm li cas los xij, vim qhov kev poob qis hauv cov hluav taws xob feem ntau, tsuas yog 70 units ntawm lub zog tuaj yeem siv tau. Hmoov tsis zoo uas muaj tus nqi ntawm 100 units txawm tias tsuas yog siv 70 units xwb. (70 units ntawm lub zog nquag siv, koj them rau 70 units ntawm kev noj) Hauv qhov piv txwv no, lub zog muaj zog yog 0.7 (yog tias feem ntau cov khoom siv hluav taws xob muaj tsawg dua 0.9, yuav muaj nplua), lub zog reactive poob. Feem ntau muaj nyob rau hauv cov khoom siv hluav taws xob (xws li tshuab tshuab, twj, compressors, thiab lwm yam), tseem hu ua inductive loads. Lub cev muaj zog yog qhov ntsuas ntawm lub cev muaj zog.
Kev Ntsuam Xyuas Qhov Tseem Ceeb
Txhua lub cev muaj zog siv ob lub zog, lub zog tiag tiag (unit: watts) thiab reactive reactive zog (unit: var). Lub zog tseem ceeb yog qhov piv ntawm kev ua haujlwm muaj txiaj ntsig rau tag nrho lub zog. Qhov siab dua qhov muaj zog, qhov sib piv ntawm kev ua haujlwm muaj txiaj ntsig ntau dua rau tag nrho lub zog, thiab lub zog ua haujlwm ntau dua.
Advanced Analytics
Nyob rau hauv ib qho inductive load Circuit Court, qhov tam sim no waveform ncov tshwm sim tom qab voltage waveform ncov. Kev sib cais ntawm ob lub nthwv dej saum toj kawg nkaus tuaj yeem qhia tau hais tias lub zog muaj zog. Qhov qis zog qhov tseem ceeb, qhov ntau dua qhov sib cais ntawm ob lub waveform peaks.
