Txoj hauv kev yooj yim los txiav txim cov zaus hloov kho uas siv tus multimeter
Ib qho kev hloov pauv yog cov cuab yeej uas hloov kho cov kev ua haujlwm ntawm cov tsav tsheb los tswj kev sib txuas lus. Nrog rau cov chaw muaj kev lag luam, cov cua hloov pauv tau nce ntxiv tau thov hauv cov teb niaj hnub. Kab lus no yuav qhia kom siv nws los ntsuas qhov zoo ntawm kev hloov pauv ntau zaus.
Nws yuav tsum raug sau tseg tias rau kev nyab xeeb ntawm tus kheej, lub tshuab yuav tsum tau tsav tawm thiab cov kab hluav taws xob cov hluav taws xob yuav tsum tau muab tshem tawm ua ntej ua haujlwm! Ua ntej, teeb tsa ntau ntau rau "txoj haujlwm thib ob" txoj haujlwm, thiab tom qab ntawd siv cov nuj nqis liab thiab dub ntawm cov kauj ruam hauv qab no:
Qhov kev sojntsuam dub sib cuag tus ncej tsis zoo P (+) ntawm DC npav, thiab cov kev sojntsuam liab, thiab cov kev sojntsuam liab, thiab sau cov nqi uas muaj cov nqi ntawm kev sib xyaw. Tom qab ntawd kov cov kev sojntsuam liab nrog n (-), thiab kov cov kev sojntsuam dub nrog r ua ntu zus S, T, sau cov ntawv pom ntawm tus nqi ntawm multimeter. Yog tias muaj 6 qhov tseem ceeb muaj nuj nqis yog qhov tseeb sib npaug, nws qhia tau tias tsis muaj teeb meem nrog Rectifier lossis muag pib thev taus. Txwv tsis pub, yog tias lub rectifier module lossis mos pib resistort ntawm qhov chaw sib luag yog puas ntsoog, qhov tshwm sim yog: tsis muaj zaub
Qhov kev sojntsuam RED cov neeg tsis zoo P (+) ntawm DC npav, thiab cov kev sojntsuam dub, hu rau koj nyob rau hauv Clequence V, W, sau cov nqi uas pom muaj tus nqi rau ntawm multimeter. Tom qab ntawd kov cov kev sojntsuam dub nrog n (-), thiab kov cov kev sojntsuam liab nrog u hauv kev sib tw V, W, sau cov ntawv pom ntawm tus nqi ntawm pultimeter. Yog hais tias muaj 6 qhov tseem ceeb muaj nuj nqis yog qhov tseeb sib npaug, nws qhia tau tias tsis muaj teeb meem nrog IGBT inverter module ntawm zaus hloov pauv. Txwv tsis pub, yog tias lub IGBT inverter module ntawm txoj haujlwm sib haum yog puas, qhov tshwm sim yog: tsis muaj qhov tsim tawm lossis ua txhaum.
Siv kev hloov pauv zaus kom tsav lub cev muaj zog asynchronous nrog txuam hluav taws xob rau ntawm qhov chaw ua haujlwm tsis muaj cov haujlwm f los ntawm 50Hz mus rau qhov qis qis.
Thaum lub sijhawm tus txheej txheem no, siv cov ammeter txhawm rau txhawm rau txhawm rau ntes tsis-thauj khoom tam sim no ntawm lub cev muaj zog. Yog tias tsis muaj-thauj tau tam sim no tseem nyob ruaj khov thaum lub zaus tsawg dua thiab tuaj yeem nyob twj ywm tsis hloov pauv, ces nws yog qhov hloov pauv zoo.
Qhov tsawg kawg nkaus zaus tuaj yeem suav raws li hauv qab no: (synchronous ceev - rated ceev) x ncej,} × 2} {hz.
Daim Ntawv Qhia Txog AC thiab DC Khoom Siv: Feem ntau, cov lus tawm thiab cov zis tawm-lub xeev Relay Vaj Tsev yog cim nrog cov lus "DC cov lus qhia" thiab "DC tso zis". Txawm li cas los xij, kev sib txuas lus ruaj khov-state relays tsuas yog muaj cim nrog "+" thiab tsis muaj qhov sib txawv ntawm qhov zoo thiab tsis zoo rau kev tawm mus.
Kev cais tawm ntawm cov lus qhia thiab cov zis tso zis: Lub sijhawm tsis muaj txiaj ntsig zoo los ntawm kev ntsuas qhov ntsuas ntawm txhua tus pin cais. Thaum ua ntej tsis kam ntawm ob lub pins yog me me thiab rov qab tiv taus, ob pins no yog cov tswv yim ntawm cov khoom lag luam, thiab ob lub pins yog cov zis tawm tswv yim. Hauv kev ntsuas nrog ib qho kev tawm tsam me me, qhov kev sojntsuam dub txuas nrog lub tswv yim zoo thiab kev sojntsuam liab tau txuas nrog cov lus qhia tsis zoo.
