Vim li cas qhov hluav taws xob nruab nrab ntawm cov xaim nruab nrab thiab nyob hlau ntsuas los ntawm multimeter 380V?
Qhov feem ntau yuav yog vim li cas qhov hluav taws xob nruab nrab ntawm cov kab nruab nrab thiab cov kab nyob ib puag ncig 380V yog vim tias thaum lub sij hawm kho cov hluav taws xob thiab cov kab xa tawm, tus kws kho hluav taws xob tsis tu ncua yuam kev txuas tus thawj ib-theem 220V faib nruab nrab kab mus rau theem kab nrog. ib theem sib txawv. Raws li qhov tshwm sim, "kab nruab nrab" ntawm 220V voltage tus neeg siv dhau los ua 380V voltage rau txoj kab nyob (txawm tias qhov xwm txheej no tsis tshua muaj, tab sis qhov no yuav tsis raug txiav tawm).
Qee lub npe hu ua "cov kws tshaj lij" uas tsis muaj kev paub txog kev ua haujlwm tau mob siab los teb cov lus nug hluav taws xob los ntawm kev ua txuj kom nkag siab. Lawv xav tias qhov no yog vim cov kab nruab nrab ntawm peb-theem plaub (tsib) xaim xaim xaim qhib, ua rau qhov hluav taws xob ntawm 380V ntawm cov kab nruab nrab thiab kab nyob. Qhov kev pom yog qhov tsis ncaj ncees lawm. Vim tias qhov nruab nrab qhov nruab nrab ntawm qhov kev hloov pauv ntawm peb-theem load tshwm sim los ntawm kev qhib Circuit Court ntawm cov kab nruab nrab ntawm peb-theem plaub (tsib) xaim xaim, qhov hluav taws xob ntawm txhua theem tsis tuaj yeem ncav cuag tus neeg siv qhov hluav taws xob thiab raug kho nyob rau hauv tus nqi hluav taws xob. . Ntxiv mus, vim hais tias ntawm xoom kab Thaum lub hwj chim qhov chaw raug txiav, cov khoom siv hluav taws xob tau qhib los ntawm cov neeg siv nrog cov theem sib txawv ntawm cov kab sib txawv yuav tsim cov voj voog ntawm cov kab nrog cov theem sib txawv los ntawm cov khoom siv hluav taws xob tig los ntawm cov neeg siv nrog cov theem sib txawv. Yog li ntawd, qhov voltage ntawm ob qho kawg ntawm cov khoom siv hluav taws xob nyob ntawm qhov load ntawm txhua theem. Qhov ntau thiab tsawg sib txawv thiab hloov tas li.
Hais tias yog; Yog hais tias qhov nruab nrab ntawm peb-theem load yog txav mus los ntawm qhov qhib Circuit Court ntawm cov kab nruab nrab ntawm peb-theem plaub (tsib) xaim xaim xaim, thaum lub thauj khoom loj thaum lub load qhib (xws li pib tsis siv neeg thiab nres xws li lub tshuab cua txias, lub tub yees, thiab lwm yam.) Qhov voltage ntawm ib theem yuav txo qis, thiab thaum lub load qhib, qhov voltage ntawm ib theem yuav nce. Raws li cov loads (cov khoom siv hluav taws xob) tau qhib thiab hlawv tawm ntawm cov neeg siv peb-theem txuas ntxiv hloov, qhov voltages ntawm peb theem tseem yuav hloov mus ntxiv. , yog tias nws tsis ua haujlwm raws sijhawm nyob rau lub sijhawm no, feem ntau ntawm cov khoom siv hluav taws xob tau txais (cov khoom siv) hauv tag nrho cov hluav taws xob faib hluav taws xob yuav kawg hlawv.
Tsis ntev los no kuv tau tshwm sim raug rau peb-theem alternating tam sim no. Qhov sib txawv ntawm txhua theem kab thiab cov kab nruab nrab yog raws nraim 220V, uas kuj yog hom siv hauv tsev, thiab qhov sib txawv ntawm cov kab theem yog raws nraim 380V. Hauv lwm lo lus Nws muaj feem ntau tias ib qho ntawm cov kab hluav taws xob hauv koj lub tsev txuas nrog cov xaim nruab nrab, yog li yuav muaj qhov sib txawv ntawm 380V.
Yog tias qhov no tshwm sim hauv tsev, koj yuav tsum xav txog nug cov neeg ua haujlwm hauv lub hwj chim los daws qhov txhaum, txwv tsis pub cov khoom siv hluav taws xob tau yooj yim hlawv.
Qhov tseeb, koj tuaj yeem txiav txim siab seb qhov no puas yog qhov teeb meem. Koj tuaj yeem nrhiav tus cwj mem hluav taws xob thiab ntxig rau hauv ob lub qhov (socket) ua ntu zus kom pom tias muaj hwj chim hauv txhua lub qhov (socket). Yog tias muaj hwj chim, nws yog qhov xwm txheej kuv tau hais. Cov kab nruab nrab txuas nrog. Nws yog lub sij hawm mus txog theem kab. Kuv xav tias cov lus nug yog hais txog kev siv ib lub multimeter los ntsuas qhov voltage, uas txhais tau hais tias yog hais tias koj muaj ib tug multimeter nyob rau hauv tsev, koj muaj peev xwm ntxig cov liab xeem lead ntawm lub multimeter mus rau hauv lub qhov (socket) cais, tawm hauv lub dub test lead unplugged, tab sis tsis txhob sim. kov cov hlau lead dub nrog koj txhais tes, yog tias muaj qhov hluav taws xob hauv ob lub qhov (socket), ces nws kuj tuaj yeem txiav txim siab tias qhov no yog qhov xwm txheej kuv tau hais.
