Cov dej xau tam sim no yog hais txog qhov tam sim no tsim los ntawm qhov nruab nrab ib puag ncig los yog rwb thaiv tsev ntawm cov hlau uas yog rwb thaiv tsev los ntawm ib leeg, los yog nruab nrab ntawm qhov chaw nyob thiab qhov chaw hauv av, thaum tsis muaj qhov tsis xws luag hauv daim ntawv thov ntawm qhov hluav taws xob.Hauv Teb Chaws Asmeskas UL Standard, Leakage Tam sim no yog qhov tam sim no uas tuaj yeem ua los ntawm cov khoom siv hauv tsev xws li Capacitive Coupling Current.Cov dej xau tam sim no muaj ob ntu, ib qho yog Kev Ua Haujlwm tam sim no I1 Los ntawm Kev Tiv Thaiv Kev Tiv Thaiv;Lwm qhov yog Kev Tawm Tsam Los ntawm Kev Tshaj Tawm Tshaj Tawm Tam sim no I2, Lub Capacitive Reactance Ntawm Qhov kawg yog XC = 1/2pfc Inversely Proportional rau Lub Hwj Chim Zaus, Thiab Cov Peev Xwm Tshaj Tawm tam sim no nce nrog qhov nce ntawm qhov zaus, yog li cov dej ntws tam sim no. Nce Nrog Kev nce ntawm Lub Hwj Chim Zaus.Piv txwv li: Siv lub Thyristor los muab lub zog, nws qhov kev sib haum xeeb ntawm qhov hnyav ntawm Wave ua rau cov dej ntws tam sim no.
Yog tias Qhov Kev Pabcuam Tswjhwm Leakage Tam Sim No Tester Txheeb Xyuas Qhov Kev Ruaj Ntseg Ntawm Ib Lub Circuit Court lossis Ib Qhov System, qhov tam sim no suav nrog txhua yam uas dhau los ntawm cov khoom siv rwb thaiv tsev.
Ntxiv rau qhov tam sim no ntws mus rau hauv lub ntiaj teb (los yog cov khoom siv hluav taws xob sab nraum lub Circuit Court), Nws tseem yuav tsum suav nrog tam sim no ntws mus rau hauv lub ntiaj teb los ntawm cov khoom siv hluav taws xob hauv Circuit Court lossis qhov system (Kev faib tawm tuaj yeem suav tau tias yog Capacitive Devices).Kev xaim ntev dua yuav tsim kom muaj qhov loj dua faib lub peev xwm thiab ua kom cov dej ntws tawm tam sim no.Qhov no yuav tsum tau ceev faj tshwj xeeb hauv kev tsis sib haum xeeb.
Lub hauv paus ntsiab lus ntawm kev ntsuas cov dej xau tam sim no yog qhov zoo ib yam li ntsuas kev tiv thaiv kev tiv thaiv.Kev ntsuas rwb thaiv tsev tiv thaiv yog qhov ua tau zoo ntawm cov dej xau tam sim no, tab sis nws tau nthuav tawm nyob rau hauv daim ntawv ntawm Resistance.Txawm li cas los xij, Kev ntsuas qhov ntsuas ntawm qhov dej ntws tam sim no siv kev sib txuas lus hluav taws xob, yog li ntsuas qhov hluav taws xob tam sim no.
Lub Cheebtsam tam sim no muaj lub peev xwm hnyav tam sim no.
Thaum lub sij hawm ntsuas qhov ntsuas hluav taws xob, txhawm rau tswj xyuas cov khoom siv sim thiab xyuas cov ntsuas kev ntsuas raws li cov cai, nws tseem yuav tsum tau lees paub tias lub zog hluav taws xob muaj zog uas tsis muaj kev puas tsuaj rau cov cuab yeej hauv kev sim (cov khoom siv rwb thaiv tsev) raug tso cai. Ntws Los ntawm Cov Khoom Siv Hauv Kev Ntsuas (Cov Khoom Siv Hluav Taws Xob) * Tus nqi tam sim no loj, qhov tam sim no feem ntau hu ua Leakage tam sim no, tab sis txoj kev no tsuas yog siv rau cov sijhawm tshwj xeeb saum toj no.Thov Kom Paub Qhov txawv.
Qhov Program-Controlled Leakage Tam sim no Tester yog qhov tseeb hluav taws xob Circuit Court lossis cov khoom siv uas ntws los ntawm qhov rwb thaiv tsev yam tsis muaj teeb meem thiab siv hluav taws xob.
Tam sim no.Yog li ntawd, Nws yog ib qho tseem ceeb ntawm qhov ntsuas ntsuas ntsuas qhov ntsuas hluav taws xob ntawm cov khoom siv hluav taws xob, thiab nws yog qhov taw qhia tseem ceeb ntawm cov khoom siv kev nyab xeeb.
Khaws cov dej xau tam sim no ntawm tus nqi me me, uas ua lub luag haujlwm tseem ceeb hauv kev nyab xeeb ntawm cov khoom xa mus.
Lub Programmable Leakage Tam sim no Tester yog siv los ntsuas qhov dej ntws tam sim no tsis cuam tshuam rau kev ua haujlwm tsim los ntawm Kev Siv Hluav Taws Xob (lossis lwm yam khoom siv hluav taws xob) ntawm cov khoom siv hluav taws xob los ntawm kev rwb thaiv tsev lossis faib Parameter impedance, thiab nws cov tswv yim impedance simulates impedance ntawm tib neeg. Lub cev.
Cov Kev Ntsuas Tam sim no feem ntau yog tsim los ntawm kev hloov pauv impedance, ntau yam hloov pauv, AC-DC hloov pauv, nthuav dav, qhia cov khoom siv, thiab lwm yam. Qee qhov tseem muaj kev tu ncua dhau-tam sim no, suab thiab lub teeb ceeb toom Circuit Court thiab sim ntsuas qhov ntsuas hluav taws xob, thiab lawv cov khoom qhia tau faib. Hauv Analog thiab Digital Ob Hom.
Lub thiaj li hu ua Kov tam sim no, luv luv, hais txog qhov tam sim no uas ntws los ntawm cov hlau kov tau ib feem ntawm lub cuab yeej los ntawm tib neeg lub cev mus rau qhov chaw hauv av lossis qhov kov tau.Rau qhov no, peb yuav tsum siv nws thaum kuaj xyuas tib neeg lub cev simulation Circuit Court, Parallel Voltmeter, thiab tib neeg lub cev simulation Circuit Court muaj tib neeg lub cev simulation Circuits raws li cov khoom sib txawv kev cai.
Muaj plaub hom kev xau tam sim no: Semiconductor Component Leakage Current, Power Supply Leakage Current, Capacitor Leakage Tam Sim No Thiab Filter Leakage Current.
Suav Lub Npe: Cov dej ntws tam sim no;Lub npe txawv teb chaws: Leakage Current
1 Leakage tam sim no ntawm Semiconductor Cheebtsam
2 Lub zog hluav taws xob tam sim no
3 Capacitor Leakage Tam sim no
4 Lim cov dej ntws tam sim no
1. Cov dej ntws tam sim no ntawm cov khoom siv semiconductor
Ib qho me me tam sim no ntws los ntawm PN Junction thaum nws tawm.Thaum DS tau teeb tsa rau pem hauv ntej kev tsis ncaj ncees thiab GS rov qab tsis zoo, tom qab qhib qhov kev coj ua, tam sim no yuav ntws los ntawm D mus rau S. Tab sis qhov tseeb, vim tias muaj cov hluav taws xob dawb, cov hluav taws xob dawb txuas nrog SIO2 thiab N +, ua rau DS To Leak Current.
2. Lub zog hluav taws xob tam sim no
Txhawm rau txo qhov cuam tshuam hauv kev hloov pauv hluav taws xob, raws li National Standard, EMI lim Circuit Court yuav tsum tau teeb tsa.Vim tias qhov kev sib txuas ntawm EMI Circuit Court, muaj me ntsis tam sim no mus rau hauv av tom qab hloov hluav taws xob hloov hluav taws xob txuas nrog lub zog hluav taws xob, uas yog qhov dej ntws tam sim no.Yog tias nws tsis nyob hauv av, lub plhaub lub computer yuav muaj qhov hluav taws xob ntawm 110 volts rau hauv av, thiab nws yuav hnov tsw thaum kov ntawm tes, uas tseem yuav cuam tshuam rau lub computer ua haujlwm.
3. Capacitor leakage tam sim no
Lub Capacitor Medium tsis tuaj yeem ua tau zoo nyob rau hauv tsis yog-Conductivity.Thaum Lub Capacitor siv nrog DC Voltage, Lub Capacitor yuav muaj cov dej ntws tam sim no.Yog tias cov dej ntws tawm loj dhau lawm, lub capacitor yuav raug puas tsuaj los ntawm tshav kub.Ntxiv nrog rau Electrolytic Capacitors, cov dej ntws tam sim no ntawm lwm cov capacitors yog me me, yog li cov rwb thaiv tsev tiv thaiv tsis zoo yog siv los qhia txog nws txoj haujlwm rwb thaiv tsev;Thiab Electrolytic Capacitor muaj cov dej ntws loj tam sim no, yog li cov dej ntws tawm tam sim no siv los qhia txog nws txoj haujlwm rwb thaiv tsev (qhov sib npaug rau lub peev xwm).
Siv ib qho ntxiv DC kev khiav hauj lwm qhov hluav taws xob rau lub Capacitor yuav pom tias qhov kev hloov pauv tam sim no zoo heev, thiab tom qab ntawd txo qis nrog lub sijhawm.Thaum Nws ncav cuag tus nqi kawg, qhov kawg ntawm tus nqi tam sim no uas ncav cuag ib qho kev ruaj ntseg ntxiv yog hu ua Leakage Current.
Plaub, lim dej ntws tam sim no
Lub ntsiab lus ntawm cov dej xau tam sim no ntawm Cov Khoom Siv Hluav Taws Xob yog: Tam sim no los ntawm cov ntaub ntawv lim mus rau qhov kev txiav txim siab kawg ntawm kev sib txuas lus los ntawm kab hauv qab kev sib txuas lus ntxiv.
Yog tias tag nrho cov chaw nres nkoj ntawm lub lim tau ua tiav los ntawm lub tsev, tus nqi ntawm cov dej ntws tawm tam sim no nyob ntawm feem ntau ntawm cov dej ntws tam sim no ntawm Common-Mode Capacitor CY, uas yog, feem ntau nyob ntawm lub peev xwm ntawm CY.
Vim tias cov dej ntws tawm tam sim no cuam tshuam txog kev nyab xeeb ntawm tus kheej, Txhua lub tebchaws hauv ntiaj teb muaj cov kev cai nruj rau nws: Rau 220V / 50Hz Kev Sib Txuas Sib Txuas Sib Txuas Hluav Taws Xob, Cov Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob yog feem ntau yuav tsum muaj tsawg dua 1mA.
Post lub sij hawm: Feb-06-2021
