Ob txoj kev siv tau zoo tshaj plaws ntawm kev siv multimeter los daws qhov teeb meem hauv Circuit Court
1, Voltage ntsuas txoj kev.
Ua ntej, lub hwj chim ntawm cov tswj Circuit Court thiab kho lub multimeter iav hloov mus rau AC voltage theem 750V. Xa mus rau lub voj voog schematic, ib qho kev sojntsuam ntawm multimeter tseem nyob ntawm kab 9, thaum lwm qhov kev sojntsuam ntsuas kab 8-7-6-5-4-3. Thaum qhov hloov pauv tsis raug kaw, ob qhov kev sojntsuam yog nyob rau theem thiab qhov voltage yog 0V. Thaum ntsuas kab 2-1, ob qhov kev sojntsuam yog nyob rau theem sib txawv thiab qhov hluav taws xob nyob ib puag ncig 380V. Qhov no yog ib txwm lub xeev ntawm Circuit Court. Yog hais tias tus nqi hluav taws xob ntawm ib kab lossis taw tes tsis sib xws hauv Circuit Court schematic thaum lub sijhawm ntsuas txheej txheem, feem ntau, qhov taw tes nrog tus nqi hluav taws xob tsis raug yog qhov txhaum!
2, Kev ntsuas kev tiv thaiv.
Ua ntej, lub Circuit Court yuav tsum tau muab tua, sim, thiab paub tseeb tias tuag. Tom qab ntawd, lub multimeter iav hloov yuav tsum tau teem rau lub beep los yog kuj hom, thiab ob multimeter probes yuav tsum tau muab tso rau ntawm kab 1 thiab 9 feem. Nyob rau hauv ib txwm muaj xwm txheej, nias lub pob SB1 lossis SB2 nyias, lossis manually nias ob lub AC contactor springs cais (piv txwv li manually kaw qhov nquag qhib ntawm KM1 lossis KM2). Lub sij hawm no, 1-9 yog conductive, lub Circuit Court qhib, thiab lub multimeter yuav muaj cov coil tsis kam. Yog tias tsis muaj tus nqi tiv thaiv, nws qhia tau hais tias lub Circuit Court tsis txuas. Nws yog ib qho tsim nyog los sib piv lub voj voog schematic thiab ntsuas thiab txheeb xyuas qhov txuas txuas ntxiv los ntawm taw tes. Txoj kev ntsuas yog zoo ib yam li voltage.
3, Txoj kev ntsuas kev tiv thaiv thiab ntsuas qhov ntsuas hluav taws xob ntawm lub tshuab hluav taws xob yog ob txoj kev siv ntau tshaj plaws hauv kev kuaj xyuas qhov txhaum. Nws tuaj yeem hais tias txhua tus muaj nws tus kheej zoo thiab yooj yim. Qhov tseem ceeb yog txoj kev uas koj ib txwm siv, thiab siv lub multimeter los ntsuas nrog kev pab los ntawm koj txoj kev paub tshaj plaws.
Txoj kev nrhiav hluav taws xob tswj Circuit Court faults nrog ib tug multimeter
Feem ntau muaj ob txoj hauv kev los nrhiav qhov tsis raug ntawm Circuit Court: voltage method thiab resistance method. Qhov ntsuas hluav taws xob siv hluav taws xob siv hluav taws xob kom paub txog cov ntsiab lus sib xyaw, thaum txoj kev tiv thaiv cov txheej txheem kev ntsuas kom tsis kam mus nrhiav ua yuam kev. Lawv txhua tus muaj lawv tus kheej qhov zoo. Yog tias koj tsis paub txog qhov Circuit Court, peb pom zoo kom siv txoj kev tiv thaiv los txiav txim qhov txhaum, uas yog qhov zoo.
Lub hauv paus tseem ceeb muaj cov xov hlau tsawg dua, ua kom yooj yim rau kev kuaj xyuas qhov yuam kev. Ntawm no, peb yuav coj cov tswj Circuit Court ua piv txwv.
