Insulation resistance: xav tau kev ntsuas

Insulation resistance: xav tau kev ntsuas
Insulation resistance: xav tau kev ntsuas

Video: Insulation resistance: xav tau kev ntsuas

Video: Insulation resistance: xav tau kev ntsuas
Video: Txiv muab Ntxhais pauv Pov haum Zaj #2. 9/23/2018 2024, Hlis ntuj nqeg
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Yog tias koj paub txog lub ntsiab lus ntawm hluav taws xob (tsawg kawg me ntsis), ces qhov zoo li ntawm cov xaim hluav taws xob zoo li qhov rwb thaiv tsev ntawm cov hlau hlau yuav tsum paub. Qhov zoo ntawm cov rwb thaiv tsev txiav txim siab qhov kev ntseeg tau ntawm cov xaim, ua kom muaj kev ua haujlwm ntawm cov txheej txheem ua haujlwm rau cov khoom xav tau. Cov kev cai khiav hauj lwm qhia txog qhov yuav tsum tau kuaj xyuas ntawm qhov yuav tsum tau muaj kev rwb thaiv tsev ntawm cov xaim nyob, cov txheej txheem uas yog ntsuas qhov kev tiv thaiv thaum siv hauv av.

rwb thaiv tsev tsis kam
rwb thaiv tsev tsis kam

Cov qauv rau kev kuaj xyuas tsis tu ncua ntawm cov rwb thaiv tsev uas twb muaj lawm siv nyob rau hauv lub neej txhua hnub thiab hauv kev tsim cov khoom siv hluav taws xob yog txiav txim siab los ntawm cov ntaub ntawv tshwj xeeb. Ntawm lawv yog GOST, PUE (cov cai rau kev teeb tsa hluav taws xob) thiab lwm yam. Txawm li cas los xij, qhov kev tshawb xyuas rwb thaiv tsev yuav tsum tau ntsuas nrog megohmmeter. Cov cuab yeej muaj xws li qhov hluav taws xob qhov hluav taws xob, qhov chaw ntawm kev tiv thaiv ntxiv thiab ib lub ntsuas hluav taws xob magnetoelectric. Lub tshuab hluav taws xob raug coj los ua qhov hluav taws xob, tab sis kev xaiv ua haujlwm manually kuj tsim nyog.

Vim tias cov megohmmeters ua haujlwm nrog qhov ncaj qha tam sim no, nws muaj peev xwm txiav txim siab qhov rwb thaiv tsev ntawm qhov overvoltage. Peb yuav tsum tsis txhob hnov qabYog hais tias ib tug megaohmmeter txuas nrog rau chav tsev nyob rau hauv kev sim, qhov ntsuas tsis kam ntawm qhov ntsuas qis qis, ces qhov hluav taws xob ntawm qhov ntsuas hluav taws xob kuj txo qis.

Kev ntsuas kev tiv thaiv hluav taws xob
Kev ntsuas kev tiv thaiv hluav taws xob

Insulation resistance yuav tsum ntsuas nyob rau theem:

  1. Yuav tsum tsis muaj qhov hluav taws xob hauv Circuit Court hauv kev sim.
  2. Yog tias tus nqi ntawm qhov kev tiv thaiv ntawm lub voj voog tsis paub, koj yuav tsum tau teeb tsa qhov ntsuas qhov ntsuas mus rau qhov siab tshaj plaws.
  3. luv luv lossis tag nrho txiav tawm tag nrho cov khoom siv hluav taws xob ua haujlwm ntawm qhov qis ntawm cov rwb thaiv tsev, suav nrog cov khoom siv hluav taws xob, cov khoom siv nrog cov khoom siv hluav taws xob.
  4. Lub ntiaj teb lub voj voog nyob rau hauv kev sim thaum ntsuas kev ua haujlwm.
  5. Thov voltage rau lub megger rau ib feeb. Siv cov ntawv nyeem ntawm qhov ntsuas ntsuas.
  6. Tom qab ua tiav qhov ntsuas, txiav qhov kawg ntawm lub cuab yeej los ntawm lub voj voog, tshem tawm cov nqi sib sau los ntawm lub voj voog hauv av.

Nws yog qhov zoo dua los ntsuas qhov kev tiv thaiv kev tiv thaiv ntawm cov xaim txuas nrog tus nqi loj tom qab qhov ntsuas lub xub tau nres tag nrho hloov pauv. Kev ntsuas hauv cov teeb pom kev zoo thiab lub zog hluav taws xob tau pom zoo kom ua nyob rau hauv hom ntawm lawv cov kev suav nrog, tshem tawm cov fuse-txuas thiab nrog cov neeg txais hluav taws xob cuam tshuam los ntawm kev cuam tshuam ntawm lub network.

insulation tiv thaiv meter
insulation tiv thaiv meter

Txoj cai txwv tsis pub ntsuas ntawm cov kab uas nyob ze ntawm txoj kab hluav taws xob siab, thiab nws tseem txwv tsis pub ua haujlwm thaum muaj cua daj cua dub. Cov txheej txheem kub muaj qhov cuam tshuam zoo heev ntawm cov rwb thaiv tsev. Kev ntsuas yuav tsum nyob ntawm qhov kub ntawm +5 degrees thiabsaum toj no.

Muaj cov kev teeb tsa ncaj qha tam sim no qhov twg lub voltmeter ua raws li cov cuab yeej tswj hwm raws li cov ntsuas hluav taws xob tiv thaiv nrog ntau qib ntawm kev tiv thaiv sab hauv. Hauv qhov no, lawv saib cov ntsuas ntawm peb hom voltage: nruab nrab ntawm tus ncej, nruab nrab hauv av thiab txhua tus ncej.

Cov kws tshaj lij hluav taws xob siv cov qauv hauv qab no ntawm cov tshuab hluav taws xob megohmmeters: F4101, F4102; Lawv tau yoog mus ua haujlwm ntawm qhov hluav taws xob ntawm 100, 500 thiab 1000 V. Cov qub hom megohmmeters kuj tseem siv: los ntawm M4100/1 txog M4100/5 thiab MS-05.

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