Video: Yuav ua li cas yog cable losses?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hwj chim poob 3 × (I²R) / 1000
Qhov twg: Fais fab poob Hauv kW units, kuv yog tam sim no (hauv amps) thiab R (hauv ohms) yog qhov nruab nrab tus neeg xyuas pib tsis kam. Yuav ua li cas kom txo qhov tsis kam nyob rau hauv lub kab ? Lub zog poob hauv ib kab nyob ntawm qhov kab ntev, kab loj thiab tam sim no los ntawm lub kab.
Kuj nug, koj ua li cas xam cov kab poob?
Xam cov kab poob raws li lub square ntawm koj tam sim no muab faib los ntawm koj xam kev tiv thaiv: P( poob )=I²R Siv Kauj Ruam 1, koj tuaj yeem hloov pauv rau kuv, tawm hauv ib qho kev sib npaug ntawm: P( poob ) = P²R/V² Qhov no nthuav tawm ib qho tseem ceeb axiom ntawm hluav taws xob txoj kev xav: kab poob yog heev txo los ntawm kev nce nyob rau hauv voltage.
Tsis tas li ntawd, koj yuav ua li cas xam qhov poob ntawm transformer? Rau xam tus poob ntawm a transformer koj yuav tsum paub qhov tseeb voltage thiab tam sim no nyob rau hauv thawj thiab theem nrab. Muab cov voltage nyob rau hauv volts los ntawm cov tam sim no nyob rau hauv amps ntawm lub hauv paus ntawm lub transformer . Sau daim duab. Muab qhov voltage hauv volts los ntawm qhov tam sim no hauv amps ntawm theem nrab ntawm cov transformer.
Yog li ntawd, dab tsi yog cable poob?
Cable poob yog ib qho tseem ceeb uas yuav tsum tau xav txog hauv kev tsim qauv. Cov poob qhia los ntawm kab nws txawv nrog zaus. Cov poob muab raws li dB / 100 ft; yog li qhov tseeb ntev ntawm cov kab nyob rau hauv lub system yuav tsum tau siv los hloov tus nqi ntawm daim duab mus rau hauv lub poob qhia los ntawm kab hauv qhov system.
Lub zog poob mis yog dab tsi?
Lub zog poob . Qhov tseeb, peb siv P = V⋅I, qhov twg P sawv cev rau zog , V rau voltage thiab kuv rau tam sim no. Yog li tsuas yog qhov peb yuav tsum tau ua yog sau qhov tseeb qhov tseem ceeb hauv qauv.
Pom zoo:
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