Xeem ntawv thov ntawm cov rulation multimeter
Thaum debugging lub ac kis tau, nws yog qhov yuav tsum tau siv insulated concentimes los ua cov zaus hloov pauv thiab lub zog, txhawm rau kom muaj kev nyab xeeb ntawm cov kab ke. Cov fluke1587 insulated multimeter tsis tsuas yog ntsuas nrawm nrawm, tab sis kuj tseem muaj cov 'kev tiv thaiv ntau yam' ua haujlwm rau rwb thaiv tsev sib tw.
1. Cov kauj ruam hauv qab no yuav tsum tau ua raws thaum siv tus flukites1587 insulated fulfuliv kev rwb thaiv tsev ntawm lub zaus hloov (siv Vaconnxp ua piv txwv):
(1) Disconnect txhua qhov hluav taws xob sab nraud ntawm qhov hloov pauv kom ntseeg tau tias qhov ntsuas hluav taws xob tsis txuas nrog lub zog hluav taws xob. Tom qab ntawd luv - Circuit Co tswv yim L1, L2, L2 thiab cov zis tso tseg U, V, W ua ke, raws li muaj nyob hauv daim duab 2-1.
(2) Kev sojntsuam cov tshuaj ntsuam xyuas ntawm cov npluav mis uas muaj cawv ntau ntxiv rau hauv qhov kawg rau 'av taw tes' raws li qhia hauv daim duab 2-2.
(3) Txuas cov kev sojntsuam mus rau Circuit Court nyob hauv qab ntsuas, thiab cov rwb thaiv tsev mulieter yuav tau txheeb xyuas seb puas muaj lub zog hluav taws xob. Yog tias qhov hluav taws xob hauv Circuit Court ntau dua 30vacordcujlj, nws yuav raug txwv tsis pub.
(4) Xaiv cov 'rwb thaiv tsev kuaj ntsuas' kev ntsuas muaj nuj nqi ntawm Fluke 1587 Rulfulation multometer.
(5) Xaiv qhov tsim nyog ntsuas voltage (500vdc) los ntawm 'ntau lub pob.
(6) Nias thiab tuav cov 'rwb thaiv tsev ntsuas' kom nyeem cov nqi impedance tso tawm ntawm cov rawv rwb thaiv tsev multimeter. Nws yuav siv sijhawm li ob peb feeb rau kev nyeem kom ncav cuag kev ruaj ntseg. Lub siab dua tus nqi impedance, qhov zoo dua. Txij ntawm no, kev nyeem ntawv yog 550 megaohms, qhia tau zoo rwb thaiv tsev. Raws li pom hauv daim duab 2-3.
(7) txuas ntxiv tawm ntawm cov kev sojntsuam ntawm cov rulation multimeter ntawm kev sim, thiab tom qab ntawd tso tawm 'rwb thaiv tsev xeem' khawm. Qhov kev ntsuas ntsuas hluav taws xob pib tawm los ntawm kev ntsuas kom txog thaum nws xaus.
2. Thaum ntsuas cov rwb thaiv tsev ntawm cov zaus hloov pauv ntawm Cultiv Circuit Court (noj cov khoom sib txuas lus), nws yuav tsum tau sau tseg tias 'FlueChite Struaj yuav tsum tau siv rau kev ntsuas kev sib txuas. Feem ntau, tus nqi xeem yog 1 megaohm, qhia tau rwb thaiv tsev zoo.
3. When using an insulation multimeter for motor insulation testing, the U, V, and W three-phase winding wires should be tested separately relative to the grounding wire. The general measurement value is>=5 egohms, qhia tau tias rwb thaiv tsev zoo.
