Kev ceev faj rau kev kuaj kab xau nrog multimeter
Qhov laj thawj ntawm qhov xau, Kuv ntseeg tias ntau tus phooj ywg tau siv ntau lub hlwb los nrhiav qhov ua rau cov pa tawm. Qhov tseeb, kuv qhia rau koj tias koj tuaj yeem yooj yim paub qhov ua rau ntawm qhov to nrog lub multimeter hauv koj txhais tes.
Fault Finding Analysis
Ua ntej txheeb xyuas qhov chaw xau tshwm sim, peb yuav tsum xub saib qhov tshwm sim txhaum cai thiab pom tseeb hauv tsev; thib ob, saib seb puas muaj cov ntsiab lus tsis txaus ntseeg los ntawm qhov chaw, thiab tom qab ntawd mus rau qib tom ntej ntawm kev tshuaj xyuas.
1. Ua ntej disconnect lub ntsiab kev rho tawm ntawm peb lub hwj chim inlet kab, thiab tua tag nrho cov neeg siv hluav taws xob loads, xws li unplugging lub tub yees, disconnecting dej twj tso kua mis hloov, thiab lwm yam.
2. Muab lub iav ntawm lub tshuab digital multimeter rau ntawm 200M iav ntawm ohm iav, tso ib qho kev xeem coj mus rau ib qho ntawm ob lub qhov hluav taws xob ntawm qhov chaw thauj khoom, thiab lwm qhov kev sim coj kov cov phab ntsa, nyiam dua cov xaim hauv av lossis ib ntus hauv av. hlau. Tom qab tus lej tso tawm ntawm lub multimeter yog qhov ruaj khov, qhov ntsuas hluav taws xob tiv thaiv tus nqi ntawm cov kab tseem ceeb tau nyeem tawm.
Yog tias tus nqi hluav taws xob tiv thaiv qis dua {{0}}.5 megohm, ces muaj teeb meem nrog cov kab tseem ceeb. Yog hais tias lub rwb thaiv tsev tsis kam siab tshaj 0.5 megohm, nws tuaj yeem txiav txim siab tias muaj teeb meem nrog cov kab tseem ceeb. Siv tib txoj kev los ntsuas lwm cov hlau, thiab tseem xyuas cov nqi kom pom tias muaj teeb meem nrog cov kab loj.
3. Tshawb xyuas cov nqi rwb thaiv tsev ntawm cov shunt thiab txhua yam khoom siv hluav taws xob, thiab siv tib txoj kev los xyuas ib qho los ntawm ib qho kom txog thaum pom qhov txhaum.
Kev ceev faj ua haujlwm
1. Thaum siv 200M iav ntawm ohm iav ntawm lub multimeter, ceev faj tsis txhob kov cov hlau ntawm qhov ntsuas ntsuas nrog koj txhais tes thaum ntsuas, txwv tsis pub kev nyeem ntawv yuav tsis raug.
2. Thaum ntsuas ntau yam khoom siv hluav taws xob, ua tib zoo tso tawm ua ntej kom tsis txhob muaj cov capacitive tam sim no hauv cov khoom siv hluav taws xob los ntawm kev ua phem rau tib neeg.
Txoj kev no yog ib txoj hauv kev nyab xeeb uas siv lub multimeter los nrhiav qhov txhaum hauv lub xeev tsis muaj hluav taws xob. Txoj kev no kuj tseem siv tau rau cov neeg siv hluav taws xob thiab cov chaw tsim hluav taws xob tsim hluav taws xob, tab sis thaum tshawb nrhiav, tsis yog tsuas yog cov khoom siv hluav taws xob yuav tsum raug txiav, tab sis kuj tseem yuav tsum tau txiav cov kab nruab nrab kom tsis txhob muaj hluav taws xob poob.
