Yuav Ua Li Cas Siv Multimeter txhawm rau nrhiav qhov txhaum hauv hluav taws xob tswj Circuit Court
Ua ntej, txoj kev ntsuas voltage.
Ua ntej, ua kom lub zog ntawm cov tswj Circuit Court, thiab kho lub iav hloov ntawm lub multimeter mus rau AC voltage ntau ntawm 750V. Raws li daim duab schematic Circuit Court, ib qho ntsuas ntsuas ntawm lub ntsuas ntsuas tau khaws cia ntawm kab 9, thiab lwm yam ntsuas ntsuas ntsuas 8-7-6-5-4- Kab 3, thaum lub ntsuas hluav taws xob tsis raug kaw, ob lub ntsuas ntsuas tau nyob hauv tib theem, thiab qhov hluav taws xob yog 0V. Thaum ntsuas kab 2-1, ob qhov kev xeem coj tawm ntawm theem, thiab qhov hluav taws xob yog li 380V. Qhov no yog ib txwm lub xeev ntawm Circuit Court. , cov kab twg thiab qhov twg tus nqi hluav taws xob tsis sib haum nrog lub voj voog schematic, ces feem ntau, qhov taw tes nrog tus nqi hluav taws xob tsis raug yog qhov txhaum!
Thib ob, txoj kev ntsuas kev tiv thaiv.
Ua ntej tshaj plaws, nws yog ib qho tsim nyog yuav tau txiav tawm lub hwj chim ntawm lub voj voog, xyuas cov hluav taws xob, thiab tom qab paub tseeb tias tsis muaj hluav taws xob, kho lub iav hloov ntawm lub multimeter mus rau lub buzzer lossis cov iav tiv thaiv, thiab tso ob lub cwj mem ntawm lub tshuab. multimeter ntawm kab 1 thiab kab 9 raws li: nyob rau hauv ib txwm muaj xwm txheej, ntsig txog Nias lub SB1 los yog SB2 khawm, los yog manually nias ob AC contactor springs ncaj qha (uas yog, manually kaw lub nquag qhib taw tes ntawm KM1 los yog KM2), lub sij hawm no { {6}} qhib, lub voj voog txuas nrog, thiab lub tshuab multimeter yuav muaj qhov sib thooj coil tsis kam. Yog tias tsis muaj tus nqi tiv thaiv, nws ua pov thawj tias Circuit Court raug thaiv. Nws yog ib qho tsim nyog los ntsuas thiab txheeb xyuas qhov taw tes tawm ntawm qhov taw tes raws li daim duab kos duab kos duab. Txoj kev ntsuas yog zoo ib yam li qhov voltage.
Peb, txoj kev ntsuas kev tiv thaiv thiab kev ntsuas qhov ntsuas hluav taws xob ntawm multimeter yog ob txoj kev siv ntau tshaj plaws hauv kev daws teeb meem hauv Circuit Court. Nws tuaj yeem hais tias txhua tus muaj nws tus kheej zoo thiab yooj yim. Qhov tseem ceeb yog qhov koj siv ib txwm siv. Siv txoj kev uas koj paub zoo tshaj nrog kev pab los ntawm ib tug multimeter los ntsuas.
Yuav ua li cas nrhiav qhov txhaum ntawm hluav taws xob tswj Circuit Court nrog Multimeter
Muaj feem ntau voltage txoj kev thiab txoj kev tsis kam mus nrhiav kab faults. Cov qauv voltage yog siv cov voltage los xyuas qhov kev txhaum taw tes, thiab txoj kev tiv thaiv yog siv cov kev tawm tsam kom pom qhov txhaum. Lawv muaj lawv tus kheej zoo. Yog tias koj tsis paub txog Circuit Court, peb pom zoo kom siv txoj kev tiv thaiv los txiav txim qhov txhaum, uas yog qhov zoo.
Cov kab tseem ceeb muaj tsawg dua cov xov hlau, yog li nws yooj yim dua los txiav txim qhov txhaum. Ntawm no peb coj txoj kab tswj hwm ua piv txwv.
Ua ntej ntsuas kev tswj cov thaiv hluav taws xob, tshem tawm cov hluav taws xob tswj hluav taws xob hluav taws xob / fuse kom cais cov hluav taws xob tswj hluav taws xob los ntawm cov hluav taws xob tseem ceeb. Lub hom phiaj ntawm qhov no yog kom tsis txhob cuam tshuam los ntawm cov kab tseem ceeb thaum ntsuas cov kab tswj.
Tom qab ntawd muab ib qho kev xeem coj mus kuaj ntawm tus lej pib ntawm lub voj voog tswj (xws li 101), thiab lwm qhov kev xeem coj ntawm tus lej pib ntawm lub voj tswj (xws li 102), thiab qhov kev tawm tsam ntawm lawv yuav tsum tsis muaj kawg. Tom qab ntawd nias lub pob hloov SB2, tom qab ntawd yuav tsum muaj qee yam tsis kam (qhov tsis kam yog sib npaug ntawm cov coil tsis kam). Yog hais tias tus nqi kuj tseem infinite, nws txhais tau hais tias tsis muaj kev sib txuas lus ntawm ob qhov kev xeem coj, thiab ib qho chaw tawg, ces mus txuas ntxiv mus nrhiav.
Yog tias koj tsis muaj sijhawm los nias lub pob, peb tuaj yeem siv cov xov hlau luv luv lossis lwm yam khoom siv hlau kom luv-circuit lub khawm, thiab tom qab ntawd tshem tawm tom qab kuaj. Tom qab ntawd peb thawb lub pob dua thiab ntsuas qhov kev tawm tsam ntawm lub davhlau ya nyob twg tom ntej ntawm lub davhlau ya nyob twg pib (103) thiab tus lej pib (102). Yog tias muaj qee qhov kev tiv thaiv tus nqi, nws txhais tau hais tias muaj qhov qhib qhov hluav taws xob ntawm 101 thiab 103. Yog tias qhov kev tiv thaiv tus nqi tseem tsis kawg, nws txhais tau hais tias tseem muaj qhov qhib qhov hluav taws xob qhov chaw ntawm 103 thiab 102, ces mus txuas ntxiv mus nrhiav.
