Lub multimeter puas tuaj yeem ntsuas qhov zoo ntawm lub cev muaj zog?
Ntau tus neeg siv hluav taws xob tau siv los siv lub ntsuas hluav taws xob los ntsuas qhov zoo ntawm lub cev muaj zog hauv lawv cov haujlwm niaj hnub. Qhov no yog undoubtedly ib qho kev sim thiab muaj kev nyab xeeb. Niaj hnub no kuv yuav qhia rau koj yuav ua li cas siv ib tug multimeter los ntsuas qhov zoo ntawm lub cev muaj zog. Lub rooj tseem tuaj yeem ntsuas qhov xwm txheej cuam tshuam, yog li tsis txhob ncua sijhawm ua haujlwm!
Kev ntsuas txoj kev ntawm peb-theem lub cev muaj zog:
Muab cov iav ntawm cov digital multimeter rau ntawm 200Ω ntau, thiab ntsuas peb-theem fais fab kab ntawm lub cev muaj zog ob los ntawm ob. Yog tias qhov ntsuas qhov ntsuas ntawm peb qhov sib npaug los yog ze heev, nws txhais tau hais tias peb-theem windings nyob rau hauv zoo conduction.
Tom qab ntawd qhib lub thawv sib txuas ntawm lub cev muaj zog, tshem tawm cov ntawv txuas tooj liab ntawm lub davhlau ya nyob twg, uas yog, txiav qhov kev sib txuas ntawm U, V, thiab W windings, muab lub multimeter ntawm qhov siab tshaj plaws ntawm qhov kev tiv thaiv iav, los yog siv multimeter. cwj mem ntsuas qhov kawg ntawm peb windings U, V, thiab W ua khub. Yog hais tias qhov tseem ceeb kuj qhia infinity, nws txhais tau hais tias lub rwb thaiv tsev ntawm theem ntawm lub cev muaj zog yog ib txwm.
Thaum kawg, siv qhov siab tshaj plaws tiv thaiv ntau yam ntawm multimeter los ntsuas qhov tsis kam ntawm txhua qhov kawg ntawm U, V, W thiab casing. Yog hais tias tus nqi kuj yog infinite, nws txhais tau hais tias lub cev muaj zog rwb thaiv tsev yog tsis muaj teeb meem, thiab nws yuav pib los ntawm lub hwj chim-on test.
Kev ntsuas txoj kev rau ib-theem motors:
Thaum ntsuas ib-theem lub cev muaj zog, koj tuaj yeem muab cov iav ntawm digital multimeter nyob rau hauv 2K iav, thiab ua ntej ntsuas qhov kev tiv thaiv ntawm lub ntsiab winding, uas feem ntau yog kaum rau pua pua Ω, uas txawv raws li lub zog ntawm lub cev muaj zog. .
Qhov kev tiv thaiv ntawm qhov thib ob winding yog me ntsis loj dua los yog tib yam li ntawm lub ntsiab winding. Yog hais tias qhov kev tiv thaiv ntawm lub ntsiab thiab pab windings yog ib txwm, ces ntsuas lub rwb thaiv tsev ntawm lub ntsiab thiab pab windings. Ntawm txhua lub davhlau ya nyob twg ntawm lub winding, lwm qhov kev xeem cov hlau lead yog grounded rau txhua qhov kawg ntawm qhov kev pabcuam winding. Yog hais tias lub rwb thaiv tsev tiv thaiv yog infinite, nws yog ib txwm. Thaum kawg, ntsuas qhov rwb thaiv tsev tiv thaiv ntawm ob lub windings thiab lub casing. Ib qho kev xeem txhuas yog txuas nrog lub winding, thiab ib qho kev xeem txhuas txuas nrog lub cev muaj zog. Nws yog ib txwm ua rau tso saib infinity qhov twg sab saud tuaj yeem qhib.
