Nangona ngoku ithembekile ukumelana ne-voltage tester, kwinkqubo yokusebenza, inokubangela imingcipheko ethile kubaqhubi ngenxa yeengxaki ezithile ezinjengefuthe labaqhubi ngokwabo okanye kwihlabathi langaphandle.Ke ngoko, omabini amashishini asebenza ngokukhethekileyo ekuveliseni abavavanyi bokumelana nombane kunye namashishini afanelekileyo asebenzisa abavavanyi bombane wokumelana kufuneka azame konke okusemandleni awo ukunqanda ukwenzeka komngcipheko onjalo, ke ungalunciphisa njani olu hlobo lobungozi obunokubakho?
Ngokubanzi, uninzi lwabavavanyi bomgangatho ophezulu wokumelana nombane bayilwe ngenkqubo yomothuko yombane enobukrelekrele obunamandla.Le nkqubo ikwabizwa ngokuba yi-smart GFI ngokufutshane.Iyakwazi ukubona ngokuhambelana nokusetyenziswa kweemodeli zangoku.Ukuba ingxaki yokutshatyalaliswa kombane kunye nokuvuza kwenzeka, umhloli we-voltage oqeqeshiweyo uya kunqumla ngokuzenzekelayo i-high-voltage output kwi-millisecond enye, Ukuqinisekisa ukhuseleko lwabaqhubi.Ke ngoko, phantsi kweemeko ezifanayo zokusebenza, umvavanyi ofanelekileyo wokumelana ne-voltage, ukuba nje umqhubi engenzi iimpazamo ezininzi, akafane ahlasele umqhubi wombane kunye nezinye iingozi.
Ukuze kukhuseleke abathengi kunye nabaqhubi, abavelisi bomvavanyi woxinzelelo kufuneka bagqibezele iintlobo ezininzi zovavanyo lokhuseleko xa begqiba ukuveliswa kwesixhobo, ukuze baqinisekise ukuba iimveliso ziyahambelana neenkcukacha zeshishini lolwakhiwo lwemveliso, umsebenzi kunye neenkcukacha zenkqubo. .Ibandakanya uvavanyo lokumelana ne-voltage, uvavanyo lokugquma, njl.njl. uvavanyo lokugquma kufuneka lwenziwe phambi kokuba amalungu afakwe ngumenzi, ikakhulu ukuthintela amacandelo angafanelekanga ukuba afakwe kwimveliso kwaye abangele iingozi ezinokubakho.Okwangoku, umenzi ofanelekileyo, imveliso yakhe, uvavanyo kunye nezinye iinkqubo kufuneka zenziwe ngokungqongqo ngokuhambelana nemigangatho yehlabathi ye-ISO, kwaye iimveliso zokugqibela kufuneka zifikelele kwimigangatho yesatifikethi yehlabathi ye-ISO, oko kukuthi, ukusuka kwiindawo ukuya kwiimveliso ezigqityiweyo. kufuneka sifikelele kwimigangatho yomgangatho wesiqinisekiso sehlabathi se-ISO, kungale ndlela kuphela apho sinokuthi sincothule ngcono iingozi ezinokubakho.Kakade ke, ukusetyenziswa amashishini izixhobo ezinxulumene, kodwa kwakhona amalungiselelo rhoqo ukusebenza uqeqesho lwabasebenzi, entsha kufuneka ibe phantsi kweliso labasebenzi abadala abanamava ukusebenza, ukuze ukuthintela ngokupheleleyo umngcipheko obangelwa iimpazamo zokusebenza.
1. Ziziphi iingenelo ze-AC ukumelana novavanyo lombane
Ngokubanzi, i-AC ukumelana ne-voltage tester kulula ukufumana inkxaso yombutho wokhuseleko kune-DC ukumelana novavanyo lombane.Esona sizathu sesokuba uninzi lwezinto ezivavanyiweyo ziya kusebenza phantsi kombane we-AC, kwaye i-AC yokumelana novavanyo lombane ibonelela ngenzuzo yokutshintshanisa iipolarities ezimbini ukufaka uxinzelelo kwi-insulation, ekufutshane noxinzelelo oluya kudibana neemveliso ekusetyenzisweni kokwenyani.Ngenxa yokuba uvavanyo lwe-AC aluyi kuhlawula umthwalo we-capacitive, ukufundwa kwangoku kuyahambelana ukususela ekuqaleni kwesicelo sombane ukuya ekupheleni kovavanyo.Ngoko ke, ekubeni akukho ngxaki yokuzinzisa efunekayo ukujonga ukufundwa kwangoku, akukho mfuneko yokunyusa inyathelo lombane ngesinyathelo.Oku kuthetha ukuba ngaphandle kokuba imveliso ephantsi kovavanyo ibona i-voltage esetyenzisiweyo ngokukhawuleza, umqhubi unokusebenzisa ngokukhawuleza i-voltage epheleleyo kwaye afunde okwangoku ngaphandle kokulinda.Ngenxa yokuba i-voltage ye-AC ayiyi kuhlawula umthwalo, akukho mfuneko yokukhupha izixhobo ezivavanyiweyo emva kovavanyo.
2. Ziziphi iziphene zomvavanyi wombane we-AC?
Xa umthwalo we-capacitive uvavanywa, i-total current iqulethe i-reactance current kunye nokuvuza kwangoku.Xa ukuxhathisa kwangoku kukhulu kunokokuvuza kwangoku, kunokuba nzima ukubona iimveliso ezinokuvuza okugqithisileyo.Xa uvavanya umthwalo omkhulu we-capacitive, i-current total efunekayo inkulu kakhulu kunokokuvuza ngokwalo.Ngenxa yokuba umqhubi ujongene nobuninzi bangoku, oku kunokuba yingozi enkulu.
3. Ziziphi iingenelo ze-DC ukumelana novavanyo lombane?
Xa i-DUT ihlawuliswe ngokupheleleyo, kuphela ukuvuza kokwenyani okuqukuqelayo.Oku kwenza ukuba i-DC imelane nesixhobo sovavanyo lombane ukubonisa ngokucacileyo ukuvuza kwangoku kwemveliso phantsi kovavanyo.Ngenxa yokuba umsinga wokutshaja umfutshane, imfuneko yamandla e-DC yokumelana novavanyo lombane idla ngokuba ncinane kakhulu kunaleyo ye-AC yokumelana ne-voltage tester esetyenziselwa ukuvavanya imveliso efanayo.
4. Ziziphi iziphene kwi-DC yokumelana ne-voltage tester?
Ngenxa yokuba uvavanyo lokumelana nombane we-DC luhlawulisa into phantsi kovavanyo (DLT), ukuze kupheliswe umngcipheko wokothuka kombane womqhubi ophethe into ephantsi kovavanyo (DLT) emva kovavanyo lokumelana nombane, into ephantsi kovavanyo (DLT) kufuneka ibe ukhutshwe emva kovavanyo.Uvavanyo lwe-DC luya kuhlawulisa i-capacitor.Ukuba ngenene i-DUT isebenzisa amandla e-AC, indlela ye-DC ayilinganisi eyona meko.
Ixesha lokuposa: Jun-24-2021
