Multimeter ntsuas ntawm peb-theem fais fab tsis muaj theem txoj kev
Theem poob nyob rau hauv peb-theem hluav taws xob txhais tau hais tias tawm ntawm peb theem nyob ntawm tej, ib los yog ob theem ntawm cov xov hlau tsis muaj voltage. Thaum tus neeg siv hluav taws xob siv hluav taws xob, yog tias tsuas yog ib theem xaim raug coj mus thiab nws tshwm sim yog ib qho uas ploj lawm ib theem, ces tus neeg siv kawg yuav tsis muaj zog. Yog tias nws yog cov khoom siv hluav taws xob peb-theem, nws tseem tuaj yeem siv txuas ntxiv tom qab tsis muaj ib theem, tab sis nws yuav ua rau tsis muaj zog, yooj yim rau dheev nce lossis poob.
Peb-theem fais fab tuag tsis muaj theem, siv txoj kev ntsuas multimeter
Multimeter ntsuas ntawm cov theem uas ploj lawm
Hauv peb-theem hluav taws xob, qhov hluav taws xob ntawm theem kab mus rau hauv av thiab mus rau xoom kab yog 220 V. Siv lub zog hluav taws xob ntawm lub multimeter los ntsuas qhov voltage ntawm peb theem kab thiab hauv av lossis xoom. kab nyob rau hauv tig. Raws li ib txwm muaj, nws yuav tsum yog li ntawm 220V, yog tias qhov hluav taws xob yog 0 lossis qis dhau, nws ua pov thawj tias theem kab yog tawm ntawm theem.
Qhov hluav taws xob nruab nrab ntawm theem xaim yuav tsum yog li 380V, ntsuas qhov hluav taws xob ntawm AB, AC, BC hauv lem, qhov hluav taws xob tsawg dua 380V, nws ua pov thawj tias theem xaim tawm ntawm theem.
tshaj 380V, nws ua pov thawj tias tsawg kawg yog ib qho ntawm ob theem ntsuas tau tawm ntawm theem.
Xws li, AB ntsuas qhov hluav taws xob qis dua, nws ua pov thawj tias A, B ob-theem tsawg kawg yog ib theem tawm ntawm theem. Tom qab ntawd ntsuas BC, yog tias qhov hluav taws xob zoo li qub, nws ua pov thawj tias theem A yog tawm ntawm theem.
Multimeter yuav ua li cas ntsuas ib theem twj tso kua mis lub cev muaj zog zoo los yog phem
Ua ntej nkag siab txog lub cev muaj zog ib-theem, ib-theem lub cev muaj zog yog tsim los ntawm lub ntsiab winding thiab sub-winding, nrog rau kev ntsuas multimeter, thawj multimeter hloov mus rau ohm cov ntaub ntawv.
Ua ntej ntsuas lub ntsiab winding ∪ 1 thiab ∪ 2 tsis kam, thiab tom qab ntawd ntsuas qhov thib ob winding Z1 thiab Z2 tsis kam, feem ntau, qhov kev tiv thaiv ntawm lub ntsiab winding yuav tsum tsawg dua los yog sib npaug rau qhov tsis zoo ntawm cov winding, yog tias ntsuas ntawm qhov kev tiv thaiv tus nqi ntawm cov ntaub ntawv ib txwm, lub hlws ris lub thawv tuaj yeem raug tshem tawm ntawm qhov sib koom ua ke, hauv kev ntsuas ntawm lub ntsiab winding thiab theem nrab winding, nruab nrab ntawm cov rwb thaiv tsev tsis kam, hauv kev ntsuas ntawm lub ntsiab, qhov thib ob winding ntawm rwb thaiv tsev. tsis kam ntawm lub cev muaj zog casing, yog tias koj pom tias qhov kev tiv thaiv tus nqi ntawm qhov txawv txav, xoom lossis tsis muaj qhov tsis kam yog tias nws pom tias tus nqi tiv thaiv yog qhov txawv txav, xoom lossis tsis muaj qhov tsis kam, lossis tsuas yog ob peb k, nws tuaj yeem xaus lus tias. lub cev muaj zog yuav raug hlawv phem.
Yog tias tus nqi hluav taws xob tiv thaiv me me, nws yuav tshwm sim los ntawm kev ya raws, lossis luv luv.
Kuj tseem tuaj yeem qhib lub casing, kev tshuaj xyuas qhov muag, kev txiav txim, yog tias koj qhib lub cev muaj zog, tsw ntxhiab tsw, lub cev muaj zog yuav raug hlawv.
Ua ntej ntsuas lub ntsiab winding ∪ 1 thiab ∪ 2 tsis kam, thiab tom qab ntawd ntsuas qhov thib ob winding Z1 thiab Z2 tsis kam, feem ntau, qhov kev tiv thaiv ntawm lub ntsiab winding yuav tsum tsawg dua los yog sib npaug rau qhov tsis zoo ntawm cov winding, yog tias ntsuas ntawm qhov kev tiv thaiv tus nqi ntawm cov ntaub ntawv ib txwm, lub hlws ris lub thawv tuaj yeem raug tshem tawm ntawm qhov sib koom ua ke, hauv kev ntsuas ntawm lub ntsiab winding thiab theem nrab winding, nruab nrab ntawm cov rwb thaiv tsev tsis kam, hauv kev ntsuas ntawm lub ntsiab, qhov thib ob winding ntawm rwb thaiv tsev. tsis kam ntawm lub cev muaj zog casing, yog tias koj pom tias qhov kev tiv thaiv tus nqi ntawm qhov txawv txav, xoom lossis tsis muaj qhov tsis kam yog tias nws pom tias tus nqi tiv thaiv yog qhov txawv txav, xoom lossis tsis muaj qhov tsis kam, lossis tsuas yog ob peb k, nws tuaj yeem xaus lus tias. lub cev muaj zog yuav raug hlawv phem.
Yog tias tus nqi hluav taws xob tiv thaiv me me, nws yuav tshwm sim los ntawm kev ya raws, lossis luv luv.
Kuj tseem tuaj yeem qhib lub casing, kev tshuaj xyuas qhov muag, kev txiav txim, yog tias koj qhib lub cev muaj zog, tsw ntxhiab tsw, lub cev muaj zog yuav raug hlawv.
