Clamp ammeter thiab clamp to ammeter
1. Clamp ammeter
Clamp ammeter, hu ua clamp tam sim no meter, feem ntau yog siv los ntsuas qhov tam sim no ntawm cov kab hluav taws xob tsawg (tsis muaj kev cuam tshuam cov hlau). Nws yog ib qho yooj yim heev rau siv thiab yog ib qho kev ntsuas tsim nyog rau kev kho lub cev muaj zog. Nws muaj ib tug openable tam sim no transformer thiab ib 'meter'. Tam sim no, feem ntau muaj ob hom: hom pointer thiab hom digital.
Thaum siv lub clamp ammeter, thov xyuam xim rau cov teeb meem hauv qab no:
(1) Xaiv lub iav thiab ntau yam. Ua ntej ntsuas, koj yuav tsum xub xaiv lub iav thiab ntau yam. Yog tias koj xav ntsuas qhov ntsuas hluav taws xob, koj yuav tsum teeb qhov hloov mus rau "V" txoj haujlwm; Yog tias koj xav ntsuas tam sim no, koj yuav tsum kwv yees tus nqi kwv yees ntawm qhov ntsuas tam sim no los xaiv qhov tsim nyog. Yog tias nws nyuaj rau kwv yees, siv qhov loj ua ntej, thiab maj mam hloov mus rau qhov tsim nyog me me. Ntsuas cov dej ntws loj nrog ib qho me me yuav ua rau lub ntsuas hluav taws xob puas.
(2) Kho tus pointer xoom txoj hauj lwm thiab kuaj. Tom qab xaiv lub iav thiab ntau yam ntawm lub clamp flow meter, koj yuav tsum saib seb tus pointer (pointer hom clamp flow meter) yog xoom lossis seb tus lej yog xoom (digital clamp flow meter). Yog hais tias tus nqi ntawm lub flow clamp meter tsis yog xoom thaum tsis ntsuas, nws yuav tsum tau kho, txwv tsis pub nws yuav cuam tshuam qhov tseeb ntawm qhov ntsuas. Ua ntej kev ntsuas kev cai, koj yuav tsum sim nws ntawm ib lub xaim nrog tus nqi tam sim no los xyuas nws qhov zoo.
(3) Ua tib zoo saib rau txoj kev ntsuas. Thaum ntsuas AC tam sim no, txoj hauj lwm ntawm qhov tam sim no-nqa insulated hlau yuav tsum tau ntsuas (yog hais tias nws yog ib tug liab qab hlau, nws yuav tsum tau qhwv nrog rwb thaiv tsev ua ntej) yuav tsum nyob rau hauv nruab nrab ntawm lub puab tsaig kom tsis txhob ua yuam kev. Lub puab tsaig yuav tsum haum nruj. Yog hais tias muaj suab nrov los yog lub pointer shakes, feem ntau yog tshwm sim los ntawm txawv teb chaws teeb meem nyob rau hauv lub puab tsaig. Lub sijhawm no, cov khoom txawv teb chaws yuav tsum raug tshem tawm thiab kev ntsuas rov ntsuas dua.
Thaum ntsuas tam sim no ntawm qhov hluav taws xob qis qis, kev saib xyuas tshwj xeeb yuav tsum tau them rau kom muaj kev nyab xeeb ntawm lub taub hau thiab qhov chaw nyob. Tsis tas li ntawd, thaum lub clamp ammeter nyob ze dhau ntawm cov khoom siv hluav taws xob (xws li lub cev muaj zog), cov ntaub ntawv ntsuas feem ntau tsis raug; Thaum ntsuas qhov ntsuas tam sim no tsawg dua 5 A, txhawm rau ua kom ntsuas qhov tseeb, yog tias muaj kev tso cai, cov xaim nqa tam sim no tuaj yeem raug mob ntawm lub puab tsaig ob peb zaug ntxiv. Hloov pauv, ntsuas kev nyeem ntawv muab faib los ntawm tus lej ntawm cov xaim xaim yog tus nqi tam sim no.
Thaum ntsuas qhov hluav taws xob, ntxiv rau kev teeb tsa lub iav mus rau "V" txoj haujlwm, ua ntej ntxig qhov ntsuas coj mus rau hauv cov khoom sib txuas raws li qhov loj ntawm qhov ntsuas hluav taws xob, thiab tom qab ntawd kov ob qhov kev ntsuas ua rau ntsuas qhov ntsuas tib yam. sij hawm. Lub dial nyeem Qhov ntawd yog tus nqi voltage ntawm ob lub ntsiab lus ntsuas.
(4) Kev nyeem ntawv raug. Muaj cov kab liab thiab dub kab ntawm lub dial ntawm lub ntsuas ntsuas dej. Cov kab liab nplai kab yog cov kab hluav taws xob ntsuas hluav taws xob, siv rau kev nyeem ntawv thaum ntsuas qhov hluav taws xob; cov kab dub yog kab kab tam sim no, siv rau kev nyeem ntawv thaum ntsuas tam sim no. Qhov tseeb ntsuas tus nqi yuav tsum yog cov khoom ntawm tus taw tes taw qhia tus nqi thiab qhov hloov pauv qhov loj. Piv txwv li, yog tias tus pointer qhia 150 A (tus nqi dial scale yog 0 txog 300 A) thiab qhov hloov pauv hloov raws li ntawm 30 A, 300 A, thiab 3 000 A, qhov tseeb tam sim no tus nqi yog 15 A, 150 A, thiab 1 500 A raws. A.
(5) Ua tib zoo saib xyuas kev nyab xeeb. Nws yog nruj me ntsis txwv tsis pub hloov cov iav ntau yam thaum lub sij hawm ntsuas. Vim hais tias lub clamp core transformer yog tam sim no transformer nrog ib tug loj tus naj npawb ntawm thib ob lem, nws yog sib npaug rau ib tug thib ob qhib Circuit Court thaum hloov dua siab tshiab, uas yuav induce ib tug heev voltage thiab tej zaum yuav ua rau rwb thaiv tsev puas, ua rau cov cuab yeej puas thiab hluav taws xob poob. Tom qab kev ntsuas ua tiav, lub puab tsaig ntawm lub ntsuas hluav taws xob tam sim no yuav tsum tau xoob, cov xov hlau yuav tsum tau maj mam tshem tawm, thiab qhov hloov pauv yuav tsum tau teem rau qhov siab tshaj plaws tam sim no lossis qhov hluav taws xob qhov chaw kom tiv thaiv kev tsis saib xyuas hauv kev tsis xaiv qhov tsim nyog ntau yam tom ntej. lub sijhawm nws siv. Ua rau lub koob saib kom khoov lossis ua rau lwm yam xwm txheej. Tsis tas li ntawd, thaum muaj cua daj cua dub, kom muaj kev nyab xeeb, nws yog txwv tsis pub ntsuas nrog lub clamp ammeter sab nraum zoov.
