Qhov sib txawv ntawm clamp grounding resistance tester thiab multimeter
Lub grounding resistance clamp type meter, tseem hu ua clamp hom grounding resistance ntsuas ntsuas, muaj qhov zoo ntawm kev ntsuas tam sim no hauv Circuit Court yam tsis muaj kev cuam tshuam cov ntsuas hluav taws xob. Tsis hais txog ntawm daim ntawv ntawm grounding resistance clamp type meter, nws feem ntau tsuas yog ntsuas AC tam sim no ntawm lub workpiece, thiab tseem muaj qee qhov grounding resistance clamp type meters tshwj xeeb yog siv los ntsuas DC tam sim no. Cia kuv qhia qhov txawv ntawm lub clamp hom grounding resistance tester thiab multimeter:
Txhawm rau kom ntseeg tau qhov tseeb thiab kev nyab xeeb ntawm kev ntsuas, lub ntsuas av tiv thaiv clamp yuav tsum tau kuaj xyuas ua ntej siv.
1. Kev tshuaj xyuas qhov tshwm sim: yuav tsum tsis muaj qhov tsis zoo xws li kev puas tsuaj. Tshwj xeeb tshaj yog nco ntsoov tias lub puab tsaig yuav tsum tau kaw nruj nreem. Cov tub ntxhais hlau yuav tsum tsis muaj xeb thiab av.
Yog hais tias nws yog ib tug neeg kho tshuab pointer hom grounding kuj clamp meter, tus pointer yuav tsum xa mus rau "{{0}}". Txwv tsis pub, nws yuav tsum tau hloov mus rau "0" txoj hauj lwm.
3. Kev kwv yees qhov loj ntawm qhov ntsuas tam sim no, xaiv lub iav tsim nyog, thiab lub hauv paus ntsiab lus ntawm kev xaiv iav yog los kho nws kom siab tshaj qhov ntsuas tus nqi. Thiab kuj nyob rau hauv cov iav kaw.
Qhib lub puab tsaig thaum ntsuas. Clamp cov hlau ntsuas rau hauv lub puab tsaig, kaw lub puab tsaig, thiab deflect lub koob saib. Tus nqi ntsuas tam sim no tuaj yeem nyeem tawm. Ua ntej nyeem ntawv, txoj hauj lwm ntawm grounding resistance clamp gauge yuav tsum tiaj tus li sai tau (mechanical pointer type grounding resistance clamp gauge). Cov digital grounding resistance clamp meter tsis muaj teeb meem.
Ua tib zoo saib thaum ntsuas
1. Cov hnab looj tes yuav tsum hnav thaum kuaj (cov hnab looj tes insulated yuav tsum tau hloov nrog cov hnab looj tes huv thiab qhuav). Yog tias tsim nyog, yuav tsum tau xaiv tus neeg saib xyuas.
Thaum hloov cov iav rau kev ntsuas, cov xov hlau yuav tsum tau muab tshem tawm ntawm lub puab tsaig ua ntej. Tom qab hloov cov iav, clamp hauv cov xov hlau rau kev ntsuas.
3. Qhov hluav taws xob ntawm cov xaim kuaj. Qhov voltage theem ntawm grounding resistance clamp meter tsis tuaj yeem tshaj.
4. Nws yog txwv tsis pub siv lub grounding resistance clamp meter los ntsuas cov rwb thaiv tsev tsis zoo thiab cov xov hlau.
5. Thaum ntsuas, ua tib zoo saib xyuas kom muaj kev nyab xeeb nyob deb ntawm cov khoom uas nyob ze. Thiab kev saib xyuas yuav tsum tau them kom tsis txhob ua rau theem rau theem luv luv Circuit Court thiab theem rau hauv av luv circuits.
6. Nws tsis haum rau ntsuas kab tam sim no nyob rau hauv qhov chaw kub kub. Nws tsis tsim nyog rau kev ntsuas ze ntawm cov hlau nplaum muaj zog, vim tias cov khoom sib nqus sab nraud muaj qhov cuam tshuam loj rau qhov ntsuas qhov ntsuas. Av tiv thaiv clamp meters yuav tsum tsis txhob siv rau kev ntsuas nyob ze cov khoom siv siab load tam sim no xws li busbars, lub zog muaj peev xwm loj, thiab transformers. Nws yuav tsum tau ntsuas ntawm qhov chaw sib txawv los txo qhov yuam kev luv luv Circuit Court tshwm sim los ntawm cov hlau nplaum.
7. Kev ntsuas yuav tsum tsis txhob muab tso rau hauv qhov chaw ntub dej lossis huab cua thunderstorm, vim tias qhov ntsuas av tiv thaiv clamp yuav tsum tuav ntawm tes rau kev ntsuas ncaj qha ntawm cov khoom siv hluav taws xob hauv kev ua haujlwm. Lub puab tsaig, tuav, thiab txhais tes ntawm cov av tiv thaiv clamp meter yuav tsum tau ceev kom huv si thiab qhuav thaum ntsuas.
8. Lub grounding resistance clamp meter muaj qhov yuam kev loj hauv kev ntsuas tsis ntsuas tam sim no. Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm lub grounding resistance clamp meter txiav txim siab tias nws yog ib qho tsim nyog yuav tsum tau siv lub grounding resistance clamp meter ntawm tus nqi ntsuas. Ntxiv nrog rau kev ntsuas sine yoj tam sim no, ntsuas lwm qhov waveform tam sim no yuav ua rau yuam kev. Feem ntau, qhov yuam kev waveform ntawm khib harmonic tsis yog ntau dua li ntawm cov spectral waves. Tshwj xeeb tshaj yog thaum lub thib peb harmonic yuam kev nce, siv lub hauv av tiv thaiv clamp meter los ntsuas ib nrab yoj rectification tam sim no kuj ua rau muaj teeb meem loj.
9. Tom qab siv, lub iav yuav tsum muab tso rau hauv lub iav tam sim no siab, thiab yog tias muaj lub ntsej muag saib, nws yuav tsum muab tso rau hauv lub ntsej muag saib. Khaws rau hauv qhov chaw qhuav, tsis muaj plua plav, tsis muaj roj corrosive, thiab qhov chaw tsis muaj kev vibration.
10. Kev ntsuas hluav taws xob siab tam sim no tsis tuaj yeem ntsuas, thiab qhov ntsuas hluav taws xob ntawm lub ntsuas hluav taws xob ntsuas tsis tuaj yeem tshaj qhov ntsuas hluav taws xob ntawm qhov ntsuas qhov ntsuas hauv av. Lub grounding resistance clamp meter tsis tuaj yeem ntsuas qhov hluav taws xob siab
