Feem ntau yuam kev thiab kho rau Clamp Ammeter
Clamp ammeters tau muab faib ua qhov siab thiab tsis tshua muaj hluav taws xob, uas yog siv los ntsuas qhov tam sim no hauv kab yam tsis muaj kev cuam tshuam cov kab. Nws txoj kev siv yog raws li nram no:
(1) Thaum siv high-voltage clamp meter, yuav tsum tau them nyiaj mloog mus rau theem voltage ntawm lub clamp ammeter, thiab nws yog nruj me ntsis txwv tsis pub siv lub low-voltage clamp meter los ntsuas qhov tam sim no ntawm high-voltage circuit. Thaum ntsuas nrog high-voltage clamp meter, nws yuav tsum tau ua los ntawm ob tug neeg. Cov neeg ua haujlwm tsis ua haujlwm yuav tsum tau sau daim pib ua haujlwm thib ob thaum ntsuas. Lawv yuav tsum hnav cov hnab looj tes insulating thaum ntsuas, sawv ntawm cov ntaub pua tsev insulating, thiab tsis txhob kov lwm yam khoom siv los tiv thaiv luv luv lossis hauv av.
(2) Thaum soj ntsuam lub sijhawm ntawm lub moos, yuav tsum tau saib xyuas tshwj xeeb rau kev tswj kom muaj kev nyab xeeb ntawm lub taub hau thiab qhov chaw nyob. Qhov kev ncua deb ntawm ib feem ntawm tib neeg lub cev thiab lub cev nyob yuav tsum tsis txhob tsawg tshaj li qhov ntev ntawm lub clamp meter.
(3) Thaum ntsuas ntawm lub high-voltage Circuit Court, nws yog txwv tsis pub siv cov xov hlau los txuas lub clamp ammeter mus rau lwm lub 'meter' rau kev ntsuas. Thaum ntsuas qhov tam sim no ntawm txhua theem ntawm high-voltage cable, qhov kev ncua deb ntawm lub cable xaus yuav tsum ntau tshaj 300mm, thiab cov rwb thaiv tsev yuav tsum zoo, thiab kev ntsuas tsuas yog nqa tawm thaum nws pom tau tias yooj yim.
(4) Thaum ntsuas qhov tam sim no ntawm qhov hluav taws xob qis fusible fuses lossis kab rov tav txheej txheem qis-voltage busbars, lub fusible fuses lossis busbars ntawm txhua theem yuav tsum tau tiv thaiv thiab cais nrog cov ntaub ntawv insulating ua ntej ntsuas kom tsis txhob luv luv ntawm cov theem.
(5) Nws yog nruj me ntsis txwv tsis pub ntsuas thaum ib theem ntawm cable yog grounded. Tiv thaiv tus kheej kev nyab xeeb los ntawm kev raug punctured thiab tawg vim tsis muaj rwb thaiv tsev ntawm lub taub hau cable.
(6) Rub lub hloov mus rau qhov siab tshaj plaws tom qab ntsuas lub clamp ammeter kom tsis txhob muaj kev sib tsoo overcurrent thaum siv tom ntej; thiab nws yuav tsum tau muab cia rau hauv chav qhuav.
Clamp Meter Solutions
(1) Thaum ntsuas qhov tam sim no lossis qhov hluav taws xob, ib lossis ob peb lub zog tsis muaj qhov taw qhia, thiab lwm lub zog qhia qhov qub. Yog vim li cas yog tias lub fastening hloov ntsia hlau ntawm lub clamp 'meter' yog xoob, los yog cov kev twb kev txuas xaim ntawm ceg hloov yog twisted tawm. Qhov kev ua tsis tiav no yog qhov feem ntau, tsuas yog txuas cov hlau tawg tom qab qhib lub hau.
(2) Kev nyeem cov ntaub ntawv tam sim no tsawg dhau, thiab kev nyeem ntawv ntawm cov ntaub ntawv voltage yog qhov qub. Feem ntau ntawm cov laj thawj yog vim kev sib cuag tsis zoo ntawm lub puab tsaig thiab sib nqus flux ntau dhau. Lub puab tsaig yuav tsum tau kho kom lawv nyob rau hauv kev sib cuag zoo. Qhov kev txhaum no qee zaum tshwm sim los ntawm luv luv Circuit Court ntawm windings, thiab nws muaj teeb meem ntau dua rau lub sijhawm no. Feem ntau hais lus, nws yog ib qho tsim nyog yuav tsum rov qab ua raws li cov ntaub ntawv qub, thiab kev kho kev laus kuj yuav tsum tau ua.
(3) Kev nyeem ntawv ntawm cov ntaub ntawv tam sim no thiab qhov hluav taws xob yog tag nrho cov qis, uas feem ntau tshwm sim nyob rau hauv cov hlau nplaum clamp meters. Qhov laj thawj yog vim li cas cov hlau nplaum yog demagnetized, uas feem ntau yuav tsum tau daws los ntawm magnetization, thiab nws kuj tuaj yeem hloov kho los ntawm kev txo cov nqi tiv thaiv kev sib txuas nrog cov 'meter' ceg.
(4) Yog tias qhov kev nyeem ntawv ntawm ib qho ntawm lub zog tsis raug, qhov sib raug zoo yuav tsum tau kho.
(5) Qhov taw qhia ntawm lub zog hluav taws xob yog qhov qub, thiab tsis muaj qhov qhia txog txhua lub zog tam sim no. Siv lub multimeter los xyuas cov thawj xaim hloov pauv thiab cov winding thib ob kom pom tias muaj qhov txawv txav.
(6) Txhua yam tsis muaj lus qhia. Xyuas lub rectifier diode, meter taub hau, hloov, thiab cov xaim txuas nrog lossis cuam tshuam nrog lub ntsuas ntsuas clamp kom tawg.
