Siv multimeter los txheeb xyuas thawj zaug thiab kawg kawg ntawm lub cev muaj zog peb-theem windings
(1) 36V AC fais fab mov thiab lub teeb pom kev zoo los txheeb xyuas qhov kawg thiab qhov kawg
Txiav txim txoj hlua raws li qhia hauv daim duab, txiav txim cov kauj ruam yog raws li hauv qab no:
ib. Nrog lub pob zeb saib lossis multimeter tiv thaiv iav, feem, txhawm rau nrhiav peb-theem winding ntawm txhua theem ntawm ob lub xaim.
b. Thawj arbitrary mus rau peb-theem winding ntawm cov hlau yog suav U1 thiab U2, V1 thiab V2, W1 thiab W2, thiab V1, U2 txuas mus rau tsim ib tug ob-theem winding nyob rau hauv series.
c. Lub teeb teeb yog txuas nrog U1 thiab V2 xov hlau.
d. W1, W2 ob lub xov hlau txuas nrog 36V AC fais fab mov, yog tias lub teeb ci ci, uas xaim U1, U2 thiab V1, V2
Tus lej yog qhov tseeb. Yog tias lub teeb tsis teeb, U1, U2 lossis V1, V2 hauv ob lub xov tooj tuaj yeem hloov kho.
e. Thiab tom qab ntawd raws li cov txheej txheem saum toj no ntawm W1, W2 ob lub xov hlau header txiav txim.
2) nrog ib tug multimeter los yog microampere meter los txheeb xyuas thawj zaug thiab qhov kawg kawg
(1) method ib
ib. Ua ntej ntawm tag nrho cov, siv lub rocking meter los yog multimeter kuj iav, ntsig txog, kom paub seb peb-theem winding ntawm txhua theem ntawm ob lub taub hau hlau.
b. Rau txhua theem ntawm winding assumed tooj U1 thiab U2, V1 thiab V2, W1 thiab W2.
c. Raws li cov xaim qhia, tig lub cev muaj zog rotor ntawm tes, xws li multimeter (microampere) pointer tsis txav, nws ua pov thawj tias qhov kev xav ntawm tus lej yog qhov tseeb; yog hais tias tus pointer muaj ib tug deflection, uas yog, ib tug ntawm cov theem ntawm thawj thiab lub xeem kawg ntawm lub assumption tias tus naj npawb tsis yog. Yuav tsum tau kho theem los ntawm theem kom rov kuaj dua, kom txog rau thaum muaj tseeb.
(2) txoj kev ob
ib. Ua ntej ntawm tag nrho cov, peb-theem winding ntawm ob theem ntawm kab, thiab theem winding terminals assumed U1 thiab U2, V1 thiab V2, W1 thiab W2.
b. Saib cov kev taw qhia ntawm multimeter (microampere file) pointer viav vias, kaw qhov hloov tam sim ntawd, yog tias lub pointer viav vias mus rau sab ntau dua li xoom, ces txuas lub davhlau ya nyob twg zoo ntawm lub roj teeb thiab qhov tsis zoo ntawm lub multimeter txuas nrog tib lub xaim rau thawj lossis kawg kawg; xws li lub pointer reversed viav vias, ces txuas qhov zoo davhlau ya nyob twg ntawm lub roj teeb thiab lub zoo davhlau ya nyob twg ntawm lub multimeter txuas nrog tib lub hlau rau thawj zaug los yog kawg kawg.
c. Tom qab ntawd txuas lub roj teeb thiab hloov mus rau lwm theem ntawm ob lub xov hlau, sim, koj tuaj yeem txheeb xyuas qhov kawg ntawm thawj thiab kawg ntawm txhua theem.
