Daim ntawv ceeb toom ntawm Clamp Meters hauv Tsev
Clamp meters yog siv los ntsuas qhov kev thauj khoom hauv Circuit Court, tab sis siv tau yooj yim tuaj yeem tso cai rau lub ntsuas hluav taws xob los txiav txim siab qhov chaw txais khoom twg yog tswj hwm los ntawm Circuit Court breaker thiab ntsuas tus kheej loads (load thiab av tam sim no) kom daws tau qhov teeb meem ceev.
Clamp meters ntsuas tam sim no los ntawm kev txiav txim siab qhov chaw sib nqus nyob ib puag ncig tus neeg nqa khoom tam sim no.
Yeej tsis muaj lwm txoj hauv kev los ntsuas qhov tam sim no hauv cov kab hluav taws xob. Kev txiav cov kab hluav taws xob no los ua qhov kev ntsuas kev ntsuas hluav taws xob tsis zoo, thiab tuaj yeem cuam tshuam koj txoj haujlwm yog tias koj tsis tuaj yeem cuam tshuam qee qhov tseem ceeb. Kev ntsuas feem ntau yog ua nyob rau ntawm qhov hloov pauv thiab suav nrog kev ntsuas kev thauj khoom thiab sib npaug ntawm peb-theem feeders. Kev ntsuas nruab nrab kuj yuav tsum tau ua nyob rau hauv lub switchboard nyob rau hauv lub xub ntiag ntawm ib tug loj tus naj npawb ntawm harmonic loads. Lub cev muaj zog kuj tuaj yeem kuaj tau los ntawm kev ntsuas tam sim no.
Ntxiv nrog rau cov kev ntsuas yooj yim no tsim los rau clamp meters, niaj hnub digital clamp meters kuj tseem muaj qhov ntsuas qhov ntsuas hluav taws xob thiab kev tiv thaiv. Qhov no txhais tau hais tias feem ntau cov kev ntsuas niaj hnub tuaj yeem ua nrog ib lub meter clamp. Yog tias tus kws kho hluav taws xob tsuas tuaj yeem nqa ib lub cuab yeej ntsuas ntawm txoj haujlwm, nws yuav ua rau kev txiav txim siab nqa nws lub ntsuas ntsuas.
Tsis tas li ntawd, lub clamp meter yuav tsum yog qhov tseeb rms clamp meter, lwm txoj hauv kev yog qhov ntsuas nruab nrab uas tsis tshua kim Meters nrog qhov nruab nrab cov lus teb yuav muab ntsuas qis, tab sis yuav tsis ntsuas tam sim no kom raug. Tej zaum nws yuav tsis raug. Qhov loj dua ntawm cov khoom siv hluav taws xob, qhov tsis raug ntau dua. Qhov tseeb rms clamp meter yuav ib txwm muab cov txiaj ntsig raug (piv txwv tias koj khaws nws ntsuas, tau kawg) #yog tias koj tuaj yeem hais tias koj yuav tsis ntsib hom kev thauj khoom no, koj yuav siv qhov tseeb rms clamp meter. Txoj kev no, koj tab tom xav txog cov haujlwm uas yuav tsum tau ua, tsis yog lub cuab yeej kuaj nws tus kheej.
Tshwj xeeb tshaj yog nyob rau hauv kev lag luam kev tsim kho, nws yog ib qho tsim nyog yuav tsum siv qhov tseeb rms clamp meter nrog ntsuas qhov tseeb.
1. Siv Clamp Meters nyob rau hauv daim ntawv thov nyob
Rau cov neeg siv hluav taws xob hauv tsev, clamp meters yog ib qho tseem ceeb rau kev ntsuas. Thaum lub chaw kuaj xyuas ntawm qhov tam sim no feem ntau txaus, qee zaum qhov kev kuaj xyuas no tsis muab daim duab tiav vim tias lub thauj khoom tau hloov mus rau thiab tawm, dhau ntau lub voj voog, thiab lwm yam.
Qhov hluav taws xob hauv hluav taws xob yuav tsum nyob ruaj khov, tab sis qhov tam sim no sib txawv. Txhawm rau kuaj xyuas qhov siab tshaj plaws lossis qhov tsis zoo ntawm qhov chaw thau khoom ntawm lub voj voog, siv lub ntsuas hluav taws xob nrog lub ntsuas min / max tsim los ntsuas cov dej ntws siab uas muaj nyob rau ntev dua 100 ms, lossis txog 8 lub voj voog. Cov dej tam sim no tuaj yeem ua rau muaj kev cuam tshuam ntau dhau uas tuaj yeem ua rau muaj kev cuam tshuam tsis zoo ntawm lub Circuit Court breaker.
Lub load ntawm txhua ceg Circuit Court yog ntsuas ntawm lub switchboard ntawm lub load sab ntawm lub Circuit Court breaker los yog fuse uas yuav qhib lub Circuit Court nyob rau hauv cov kev tshwm sim ntawm ib tug luv luv Circuit Court, uas yog tshwj xeeb tshaj yog ib qho tseem ceeb rau txhua hom kev sib cuag ncaj qha voltage ntsuas, txawm tias cov clamps ntawm lub clamp meter yog insulated, ceev faj yog tsim nyog vim hais tias ntawm ib theem ntawm kev tiv thaiv tsis pom nyob rau hauv kev sib cuag voltage ntsuas.
Ib qho teeb meem tshwm sim hauv kev ua haujlwm hluav taws xob hauv kev teeb tsa hauv vaj tse yog kev teeb tsa hluav taws xob rau cov hluav taws xob hluav taws xob, thiab cov ntsuas hluav taws xob muaj txiaj ntsig zoo hauv kev txheeb xyuas qhov hluav taws xob hluav taws xob twg. Ua ntej, tau txais ib qho kev nyeem hauv paus ntawm Circuit Court tam sim no ntawm lub switchboard. Tom qab ntawd, tso lub ntsuas ntsuas hauv MAX, VALUE/MAX hom. Mus rau lub qhov hluav taws xob cuam tshuam, ntsaws rau hauv lub nra (zoo tshaj plaws lub tshuab ziab khaub ncaws), thiab tig nws rau ib feeb lossis ob zaug. Xyuas kom pom tias qhov kev nyeem ntawv siab tshaj plaws tam sim no ntawm lub ntsuas ntsuas clamp hloov, lub tshuab ziab plaub hau feem ntau yuav kos 10-13 A, yog li yuav tsum muaj qhov sib txawv. Yog tias qhov kev nyeem ntawv zoo ib yam, lub Circuit Court breaker tsis raug.
2. Siv Clamp Meters hauv kev lag luam kev lag luam
Clamp meters yog siv nyob rau hauv kev faib cov vaj huam sib luag los ntsuas Circuit Court loads ntawm feeders thiab ceg circuits. Yog hais tias muaj ib tug Circuit Court breaker los yog fuse, qhov ntsuas ntawm lub feeder yuav tsum ib txwm nqa tawm nyob rau hauv lub load sab ntawm lub Circuit Court breaker los yog fuse (xws li nyob rau hauv ib tug kaw lub cev muaj zog starter).
Qhov sib npaug thiab kev thauj khoom ntawm lub feeder cables yuav tsum raug kuaj xyuas: tam sim no ntawm tag nrho peb theem yuav tsum yog tib yam kom txo qis tam sim no rov qab mus rau nruab nrab.
Cov hlau nruab nrab kuj yuav tsum tau kuaj xyuas kom dhau. Nrog rau cov khoom sib haum xeeb, nws muaj peev xwm ua tau rau cov neeg nruab nrab nruab nrab kom nqa tau ntau dua tam sim no dua li cov feeder txawm tias cov theem feeder sib npaug. Txhua ceg Circuit Court yuav tsum tau kuaj xyuas seb puas muaj peev xwm overloads.
Thaum kawg, hauv av loops yuav tsum tau kuaj xyuas. Qhov zoo tshaj plaws, yuav tsum tsis muaj qhov tam sim no hauv av, txawm tias tsawg dua 300 mA yog qhov qub.
