DC Cov Khoom Siv Hluav Taws Xob Kev Ntsuas
1. Tso Tawm Voltage Hloov Kho
Thaum tsim cov khoom siv hloov hluav taws xob, * * cov kauj ruam ntsuas yog los kho cov zis hluav taws xob mus rau hauv cov ntau yam. Tsuas yog tom qab ua tiav cov kauj ruam no tuaj yeem peb ua kom ntseeg tau tias qhov kev qhia tshwj xeeb tuaj yeem ua tau.
Feem ntau, thaum kho cov zis hluav taws xob, cov tswv yim ac voltage, lub tswv yim ac voltage yog teem rau tus nqi qub (115vac lossis cov zis tam sim no tau teeb tsa tus nqi lossis tag nrho cov khoom tam sim no. Tom qab ntawd, cov digital voltermeter siv ntsuas cov zis voltage muaj nuj nqis thiab kho nws lub laujkaub hluav taws xob (VR) kom txog thaum cov hluav taws xob volt yog nyob rau hauv ntau yam uas yuav tsum tau.
2. Fais Haum Haum kho tus nqi
Cov lus txhais ntawm kev tswj hwm hwj chim yog lub peev xwm ntawm lub zog hluav taws xob los muab cov txiaj ntsig ruaj khov thaum cov tswv yim hloov. Txhawm rau ntsuas lub zog haum, cov khoom siv hauv qab no yuav tsum muaj:
A. Lub zog hluav taws xob uas tuaj yeem muab cov peev xwm voltage muaj peev xwm, tsawg kawg tuaj yeem muab cov lus qhia hluav taws xob ntau ntawm * qis rau qhov siab rau lub zog kuaj.
B. Ib lub hauv paus txhais tau square ac voltermeter yog siv los ntsuas cov tawm cov khoom hluav taws xob muab voltage.
C. Ib qho precision dc voltmeter muaj kev hloov kho tsawg kawg kaum npaug tshaj li ntawm cov khoom sim.
D. Xaiv lub nra sib txuas nrog cov zis tawm tswv yim ntawm kev sim lub zog.
Cov kauj ruam xeem yog li hauv qab no: Tom qab cov khoom siv hluav taws xob ntsuas hluav taws xob ruaj khov nyob rau hauv lub voltage qub ntawm min (qhov tsis tshua muaj) thiab max (siab) cov lus qhia voltages. Lub zog tswj hwm ntsuas feem ntau yog ntsuas rau feem pua sib txawv ntawm lub zog hluav taws xob voltage tshwm sim los ntawm kev hloov pauv hauv cov lus qhia nyob hauv ib qho nominal thauj.
3. Thauj cov nqi hloov kho
Lub ntsiab txhais ntawm kev thauj cov ntsuas hloov kho tau yog lub peev xwm ntawm lub zog hluav taws xob los muab cov vis dis aus ruaj khov thaum cov zis thauj khoom tam sim no. Cov cuab yeej xav tau thiab txoj kev txuas tau zoo ib yam li cov ntsuas hluav taws xob ntsuas, tab sis qhov sib txawv yog tias muaj kev tawm tsam kev sib tw nrog cov khoom siv hluav taws xob ntsuas.
Cov kauj ruam xeem yog li hauv qab no: Tom qab sim cov hluav taws xob ruaj khov nyob rau hauv cov zis voltage thiab vmin thiab vmin thiab vmin ntau yam) thiab siab (max) thauj khoom. Tus ntsuas hloov kho cov nqi feem ntau yog feem pua ntawm cov zog hluav taws xob voltage sib txawv tshwm sim los ntawm kev hloov pauv tam sim no nyob rau hauv ib qho kev tawm tswv yim ib txwm muaj hluav taws xob.
4. Cov nqi haum hloov kho
Lub ntsiab lus ntawm kev hloov kho cov nqi yog lub peev xwm ntawm lub zog hluav taws xob hluav taws xob hluav taws xob hluav taws xob thaum cov khoom siv hluav taws xob hloov pauv tam sim no. Qhov no yog ib qho kev ntsuam xyuas ntau lub zog thiab cov kev cai thauj khoom muaj tseeb ntawm cov ntaub ntawv fais fab ntawm kev hloov cov tswv yim voltage thiab thauj khoom.
