Kev piav qhia ntawm txoj kev thiab kev ceev faj rau kev ntsuas tam sim no nrog lub clamp meter
Clamp meter yog ib qho cuab yeej uas ua ke tam sim no transformers thiab ammeters, thiab yog ib ceg tseem ceeb ntawm digital multimeter; Nws yog ib qho khoom siv portable uas tuaj yeem ntsuas ncaj qha rau AC tam sim no ntawm lub voj voog yam tsis muaj kev cuam tshuam lub voj voog. Lub ntsuas hluav taws xob yog qhov tseem ceeb ntawm lub tshuab hluav taws xob tam sim no, lub tshuab hluav taws xob clamp, thiab lub tshuab hluav taws xob hluav taws xob hluav taws xob reactive quab yuam.
txoj kev siv:
(1) Mechanical zeroing yuav tsum tau ua ntej ntsuas
(2) Xaiv qhov tsim nyog, ua ntej xaiv qhov loj, ces xaiv qhov me me lossis kwv yees tus nqi ntawm daim ntawv teev npe.
(3) Thaum siv qhov ntsuas qhov tsawg kawg nkaus thiab qhov kev nyeem ntawv tseem tsis tau meej meej, cov hlau ntsuas tuaj yeem raug mob ob peb zaug. Tus naj npawb ntawm kev tig yuav tsum yog raws li tus naj npawb ntawm cov lem nyob rau hauv nruab nrab ntawm lub clamp, thiab kev nyeem ntawv=qhia tus nqi x ntau / tag nrho qhov sib txawv x tus naj npawb ntawm lem
(4) Tom qab kev ntsuas tiav, tso qhov hloov pauv hloov ntawm qhov siab tshaj plaws.
(5) Thaum ntsuas, ntsuas cov hlau yuav tsum muab tso rau hauv nruab nrab ntawm lub clamp thiab lub clamp yuav tsum kaw kom nruj kom txo tau qhov yuam kev.
teeb meem xav tau kev saib xyuas:
(1) Thaum siv high-voltage clamp meter, yuav tsum tau them nyiaj mloog mus rau theem voltage ntawm lub clamp ammeter. Nws yog txwv tsis pub siv lub ntsuas hluav taws xob tsawg-voltage los ntsuas qhov tam sim no ntawm high-voltage circuit. Thaum siv lub high-voltage clamp meter rau kev ntsuas, nws yuav tsum tau ua los ntawm ob tug neeg. Cov neeg ua haujlwm tsis ua haujlwm yuav tsum tau ua daim ntawv tso cai ua haujlwm thib ob. Thaum ntsuas, lawv yuav tsum hnav cov hnab looj tes insulated, sawv ntawm cov ntaub thaiv npog, thiab tsis txhob kov lwm yam khoom siv los tiv thaiv luv luv los yog hauv av.
(2) Thaum soj ntsuam lub sijhawm ntawm lub moos, yuav tsum tau them nyiaj tshwj xeeb rau kev tswj kom muaj kev nyab xeeb ntawm lub taub hau thiab qhov them nyiaj. Qhov kev ncua deb ntawm ib feem ntawm tib neeg lub cev thiab qhov them nyiaj yuav tsum tsis txhob tsawg tshaj li qhov ntev ntawm lub clamp saib.
(3) Thaum ntsuas ntawm high-voltage Circuit Court, nws yog txwv tsis pub txuas cov xov hlau los ntawm lub clamp ammeter mus rau lwm lub 'meter' rau kev ntsuas. Thaum ntsuas qhov tam sim no ntawm txhua theem ntawm high-voltage cables, qhov kev ncua deb ntawm cable taub hau yuav tsum yog tsawg kawg yog 300 hli, thiab cov rwb thaiv tsev yuav tsum zoo. Nws tsuas yog ua tau thaum nws pom tau tias yooj yim rau kev ntsuas.
(4) Thaum ntsuas qhov tam sim no ntawm cov hluav taws xob tsis tshua muaj hluav taws xob fusible los yog kab rov tav txheej txheem qis-voltage busbars, txhua theem ntawm fusible fuse los yog busbar yuav tsum tau tiv thaiv thiab cais cov ntaub ntawv rwb thaiv tsev ua ntej ntsuas kom tsis txhob ua rau theem luv luv Circuit Court.
(5) Nws yog nruj me ntsis txwv tsis pub ntsuas thaum ib theem ntawm cable yog grounded. Txhawm rau tiv thaiv kev tawg hauv av thiab tawg los ntawm kev rwb thaiv tsev qis ntawm lub taub hau cable, uas yuav ua rau muaj kev phom sij rau tus kheej.
(6) Tom qab qhov kev ntsuas clamp ammeter tiav, tig qhov hloov mus rau qhov siab tshaj plaws kom tsis txhob overcurrent thaum siv tom ntej; Thiab yuav tsum tau muab cia rau hauv tsev hauv qhov chaw qhuav.
