Yuav ua li cas thiaj ua tau hluav taws xob pom hluav taws xob hauv cov teeb pom kev zoo nrog ib qho analog multimeter
Thaum muaj qhov xau hauv lub teeb pom kev zoo, nws tsis yog tsuas yog siv hluav taws xob pov tseg xwb, tab sis kuj tseem tuaj yeem ua rau hluav taws xob poob siab. Lub ntsiab lus ntawm kev xau thiab luv luv Circuit Court yog tib yam, tsuas yog qhov kev sib tsoo ntawm qhov sib txawv. Kev xau loj tuaj yeem ua rau luv luv. Yog li ntawd, qhov to ntawm cov teeb pom kev zoo yuav tsum tsis txhob maj maj. Lub rwb thaiv tsev ntawm cov hluav taws xob yuav tsum tau kuaj xyuas tsis tu ncua, tshwj xeeb tshaj yog thaum pom cov pa tawm, qhov ua rau yuav tsum tau txheeb xyuas tam sim ntawd, yuav tsum nrhiav pom qhov txhaum, thiab tshem tawm.
Cov laj thawj tseem ceeb ntawm kev xau hluav taws xob hauv hluav taws xob yog: ua ntej, lub rwb thaiv tsev ntawm cov xov hlau lossis cov khoom siv puas los ntawm cov quab yuam sab nraud; Qhov thib ob, qhov ntev - lub sijhawm ua haujlwm ntawm txoj kab tau ua rau rwb thaiv tsev laus thiab tsis zoo; Qhov thib peb yog vim li cas yog qhov Circuit Court yog invaded los yog paug los ntawm noo noo, ua rau tsis zoo rwb thaiv tsev.
Ua ntej, txiav txim siab seb puas muaj qhov xau tiag tiag. Lub rwb thaiv tsev tiv thaiv ntawm lub ntsuas hluav taws xob tuaj yeem ntsuas tau siv lub pointer hom multimeter hauv R × 10k ntau, lossis digital multimeter tso rau hauv AC tam sim no ntau yam (sib npaug rau ammeter nyob rau lub sijhawm no), txuas nrog hauv series mus rau lub ntsiab hloov, tag nrho cov keyboards tig rau, thiab tag nrho cov loads (xws li lub teeb qhov muag teev) tshem tawm. Yog tias muaj tam sim no, nws qhia tau tias muaj cov dej ntws tawm. Tom qab txiav txim siab qhov xau ntawm lub voj voog, cov kauj ruam hauv qab no tuaj yeem ua raws li kev soj ntsuam txuas ntxiv.
(1) Kev txiav txim siab seb puas muaj qhov xau ntawm cov kab theem thiab cov kab nruab nrab, qhov xau ntawm theem kab thiab hauv av, los yog ob qho tib si ua ke.
Txoj kev yog txiav tawm cov kab nruab nrab. Yog tias qhov kev nyeem ntawv ammeter tseem tsis hloov pauv, nws yog qhov xau ntawm theem kab thiab hauv av; Yog hais tias lub ammeter qhia xoom, nws yog qhov xau ntawm theem kab thiab kab nruab nrab; Yog hais tias qhov kev nyeem ntawv ammeter txo qis tab sis tsis yog xoom, nws txhais tau hais tias muaj qhov xau ntawm theem kab thiab cov kab nruab nrab, nrog rau ntawm theem kab thiab hauv av.
(2) Txheeb xyuas qhov sib txawv ntawm cov dej xau.
Tshem lub shunt fuse los yog rub nws qhib. Yog hais tias lub ammeter nyeem ntawv tseem tsis tau hloov, nws qhia tau hais tias lub tsheb thauj mus los; Yog hais tias lub ammeter qhia xoom, nws yog ib ceg to; Yog hais tias qhov kev nyeem ntawv ammeter txo qis tab sis tsis yog xoom, nws qhia tau hais tias muaj kev xau hauv ob lub tsheb npav thiab ceg circuits.
(3) Nrhiav qhov to taub.
Tom qab kev soj ntsuam saum toj no, tshem tawm cov keyboards ntawm cov teeb pom kev zoo ntawm lub voj voog hauv ib ntus. Thaum ib qho kev hloov pauv tau raug txiav, lub ammeter qhia tias xoom, qhia tias cov ceg kab txuas hluav taws xob; Yog hais tias nws ua me me, nws qhia tau hais tias muaj cov xau nyob rau hauv lwm qhov chaw ntxiv rau cov kab no; Yog tias qhov kev nyeem ntawv ammeter tseem tsis hloov pauv tom qab txhua lub teeb hloov pauv tau raug tua, nws qhia tau hais tias cov kab tseem ceeb tau xau hluav taws xob. Los ntawm kev txo qis ntawm qhov kev sib tsoo hauv ib ntus, kev tshuaj xyuas ntxiv tuaj yeem txiav txim siab seb puas muaj qhov xau ntawm cov pob qij txha ntawm txoj kab thiab ntawm qhov chaw uas cov xov hlau hla ntawm phab ntsa. Tom qab pom qhov to ntawm qhov to, qhov ua txhaum ntawm qhov to yuav tsum raug tshem tawm raws sijhawm. Kev thauj khoom kawg pib tshawb xyuas cov kauj ruam los ntawm kauj ruam tom ntej, xyuas seb qhov kev ua haujlwm puas tshwm sim los ntawm lub voj voog lossis cov khoom siv, thiab tom qab ntawd nws tuaj yeem txiav txim siab. Tom qab tshem tawm qhov luv luv -circuit fault point, nruab ib lub fuse tsim nyog ua ntej lub hwj chim.
luv luv Circuit Court, qhib Circuit Court, thiab to nyob rau hauv lub teeb pom kev zoo circuits yog ib qho teeb meem. Tsuas yog los ntawm kev ua cov kev ntsuas tshwj xeeb thiab kev tshuaj ntsuam xyuas peb tuaj yeem txheeb xyuas qhov tseeb ntawm qhov txhaum, txiav txim siab qhov ua txhaum, thiab siv cov kev ntsuas zoo los tshem tawm qhov txhaum sai li sai tau.
