Video: Koj ua li cas xam lub hwj chim tiag tiag thiab lub zog pom tseeb?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kev sib xyaw ntawm reactive zog thiab lub zog tiag tiag hu ua pom meej zog , thiab nws yog cov khoom ntawm lub Circuit Court voltage thiab tam sim no, tsis siv rau theem kaum. Pom lub zog yog ntsuas nyob rau hauv chav tsev ntawm Volt-Amps (VA) thiab yog cim los ntawm lub capital tsab ntawv S.
Tsis tas li ntawd, lub hwj chim tiag tiag thiab qhov pom tseeb yog dab tsi?
Hauv AC Circuit Court, lub zog tiag tiag yog cov lub zog tiag tiag siv los ntawm cov cuab yeej siv los ua haujlwm muaj txiaj ntsig. Nws yog qhov txawv ntawm pom meej zog los ntawm kev tshem tawm cov reactive zog cov khoom uas yuav muaj nyob. Cov lub zog tiag tiag ntsuas nyob rau hauv watts thiab signifies tus zog kos los ntawm Circuit Court tsis kam ua haujlwm tseem ceeb.
Qhov thib ob, dab tsi yog chav tsev rau pom lub zog? Cov chav tsev rau txhua yam ntawm zog yog lub watt (cim: W), tab sis qhov no chav tsev feem ntau yog tshwj tseg rau active zog . Pom lub zog yog conventionally qhia nyob rau hauv volt-amperes (VA) vim nws yog cov khoom ntawm rms voltage thiab rms tam sim no. Cov unit rau reactive zog yog qhia raws li var, uas sawv cev rau volt-ampere reactive.
Dab tsi yog qhov txawv ntawm lub zog tiag tiag thiab lub zog reactive?
Cov active zog yog cov zog tiag siv los ntawm lub load. Whereas, the reactive zog yog qhov tsis muaj txiaj ntsig zog . Cov active zog yog cov khoom ntawm qhov voltage, tam sim no thiab lub cosine ntawm lub kaum sab xis nruab nrab lawv. Whereas, the reactive zog yog cov khoom ntawm voltage thiab tam sim no thiab lub sine ntawm lub kaum sab xis nruab nrab lawv.
Qhov tseeb fais fab mis yog dab tsi?
Muaj hwjchim tiag yog cim los ntawm tsab ntawv P thiab ntsuas nyob rau hauv chav tsev ntawm Watts (W). Peb hom ntawm no zog yog trigonometrically cuam tshuam rau ib leeg. Nyob rau hauv ib txoj cai daim duab peb sab, P = nyob ib sab ntev, Q = opposite ntev, thiab S = hypotenuse ntev. Lub kaum sab nraud yog sib npaug rau lub voj voog lub impedance (Z) lub kaum sab xis.
Pom zoo:
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