Rwb thaiv tsev Resistance Tester yog tsim nyog rau kev ntsuas tus nqi Resistance ntawm ntau yam ntaub ntawv rwb thaiv tsev thiab cov rwb thaiv tsev tiv thaiv ntawm Transformers, Motors, Cables thiab cov khoom siv hluav taws xob, kom ntseeg tau tias cov cuab yeej siv hluav taws xob, cov khoom siv hluav taws xob thiab cov kab ua haujlwm nyob rau hauv ib qho xwm txheej kom tsis txhob muaj hluav taws xob poob siab, raug mob thiab khoom siv. Kev puas tsuaj.
Cov Teeb Meem Ntawm Cov Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob yog raws li hauv qab no:
1. Thaum ntsuas Capacitive Load Resistance, Dab tsi yog Kev Sib Raug Zoo Ntawm Cov Tso Tawm Short-Circuit Tam Sim No Ntawm Cov Hluav Taws Xob Resistance Tester Thiab Cov Ntaub Ntawv Ntsuas, Thiab Vim Li Cas?
Qhov luaj li cas ntawm cov zis luv luv-Circuit tam sim no ntawm cov rwb thaiv tsev tiv thaiv Tester tuaj yeem cuam tshuam qhov loj ntawm Internal Resistance ntawm High-Voltage Source hauv Megger.
Muaj ntau qhov kev ntsuas rwb thaiv tsev Target Capacitive Loads, xws li ntev cables, motors nrog ntau Windings, thiab Transformers.Yog li ntawd, thaum ntsuas lub hom phiaj muaj peev xwm, thaum pib ntawm lub xeem txheej txheem, lub High-Voltage qhov chaw nyob rau hauv lub rwb thaiv tsev Resistance Tester yuav tsum tau them tus Capacitor los ntawm nws Internal Resistance, thiab maj mam them lub voltage mus rau qhov ntxiv High-Voltage tso zis ntawm lub. Rwb thaiv tsev Resistance Tester..Yog tias tus nqi Capacitance ntawm qhov ntsuas lub hom phiaj yog loj, los yog Internal Resistance ntawm High-Voltage Source yog loj, cov txheej txheem them yuav siv sij hawm ntev.
Nws Ntev tuaj yeem txiav txim siab los ntawm cov khoom ntawm R Inner Thiab C Load (Unit: Thib Ob), T = R Inner * C Load.
Yog li ntawd, thaum lub sij hawm xeem, Nws yog ib qho tseem ceeb kom them ib tug Capacitive Load mus rau lub xeem Voltage, thiab lub Charging ceev DV / Dt yog sib npaug rau qhov ratio ntawm tus nqi tam sim no kuv mus rau lub Load Capacitance C. Ntawd yog, DV / Dt = Kuv/C.
Yog li ntawd, qhov tsawg dua qhov kev tiv thaiv sab hauv thiab qhov loj dua qhov kev them nqi tam sim no, qhov kev ntsuas tau nrawm dua yuav ruaj khov.
2. Lub luag haujlwm ntawm "G" sab ntawm qhov tshwm sim yog dab tsi?Nyob rau hauv ib puag ncig High-Voltage Thiab High-Resistance Test, Vim Li Cas Nws Yuav Tsum Tau Txuas Qhov "G" Terminal Sab Nraud?
Qhov "G" Qhov Kawg Ntawm Qhov Nto yog Lub Chaw Tiv Thaiv Kev Tiv Thaiv.Lub luag haujlwm ntawm lub shielding davhlau ya nyob twg yog kom tshem tawm qhov cuam tshuam ntawm cov av noo thiab av nyob rau hauv qhov kev ntsuam xyuas ib puag ncig ntawm qhov ntsuas tau.Sab Nraud "G" Terminal Bypasses cov dej ntws tam sim no ntawm cov khoom kuaj, kom cov dej ntws tam sim no tsis dhau los ntawm kev ntsuas sab nraud, thiab tshem tawm qhov yuam kev tshwm sim los ntawm cov dej ntws tam sim no.Lub G Terminal yog siv thaum kuaj kev ua haujlwm siab.
Feem ntau hais lus, G Terminal tuaj yeem suav tias yog siab dua 10G.Txawm li cas los xij, Qhov Kev Tiv Thaiv Kab Mob no tsis muaj tseeb.Thaum nws huv thiab qhuav thiab qhov ntim ntawm cov khoom ntsuas me me, nws tuaj yeem ruaj khov yam tsis ntsuas 500G ntawm G kawg.Hauv qhov chaw ntub dej thiab qias neeg, tus nqi qis dua kuj tseem xav tau G kawg.Tshwj xeeb, Yog tias koj pom tias cov txiaj ntsig tau nyuaj rau kev ruaj khov thaum ntsuas qhov ntsuas siab dua, koj tuaj yeem txiav txim siab siv G Terminal.Tsis tas li ntawd nco ntsoov tias lub shielding davhlau ya nyob twg G tsis txuas rau lub shielding txheej, tab sis mus rau lub rwb thaiv tsev ntawm L thiab E los yog mus rau lub multi-stranded hlau, tsis yog rau lwm yam hlau nyob rau hauv kev sim.
3. Yog vim li cas nws tsis tsuas yog yuav tsum tau ntsuas tus nqi Pure Resistance thaum ntsuas rwb thaiv tsev, tab sis kuj los ntsuas qhov ntsuas qhov nqus thiab polarization Performance index.Qhov Point yog dab tsi?
PI yog qhov ntsuas polarization, uas yog hais txog kev sib piv ntawm cov rwb thaiv tsev tiv thaiv ntawm 10 feeb thiab rwb thaiv tsev tsis kam ntawm 1 feeb thaum lub sij hawm ntsuas rwb thaiv tsev;
DAR yog Dielectric Absorption Ratio, uas yog hais txog qhov kev sib piv ntawm cov rwb thaiv tsev tiv thaiv ntawm 1 feeb thiab rwb thaiv tsev tsis kam ntawm 15s thaum lub sij hawm ntsuas rwb thaiv tsev;
Hauv Kev Ntsuas Hluav Taws Xob, Cov Hluav Taws Xob Cov Hluav Taws Xob Hluav Taws Xob Ntawm Ib Lub Sijhawm Tsis Muaj Peev Xwm Tsis Txaus Siab Xav Tau Kev Ruaj Ntseg Ntawm Cov Qauv Ntsuas.Qhov no yog vim ob qho laj thawj hauv qab no.Ntawm ib sab tes, qhov rwb thaiv tsev tsis zoo ntawm tib lub luag haujlwm ntawm cov khoom rwb thaiv tsev me me thaum lub ntim loj., Cov rwb thaiv tsev tiv thaiv tshwm thaum lub ntim me me.Ntawm qhov tod tes, cov khoom siv rwb thaiv tsev muaj cov txheej txheem ntawm qhov nqus nqus thiab cov txheej txheem polarization ntawm tus nqi tom qab siv hluav taws xob siab.Yog li ntawd, Lub Hwj Huam Lub Cev Yuav Tsum Tau Ntsuas Qhov Ntsuas Qhov Ntsuas Qhov Ntsuas-Qhov Ntsuas Ntawm R60s Thiab R15s, Thiab Qhov Ntsuas Polarization-Qhov piv ntawm R10min thiab R1min Hauv Kev Ntsuas Hluav Taws Xob Ntawm Cov Hluav Taws Xob, Cov Hluav Taws Xob, Cov Hluav Taws Xob thiab Ntau Lwm Yam, thiab siv qhov no Cov ntaub ntawv los txiav txim qhov rwb thaiv tsev zoo los yog phem.
4. Vim li cas Cov Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Thaum Muaj Hluav Taws Xob Hluav Taws Xob?Qhov no yog raws li Lub hauv paus ntsiab lus ntawm DC hloov dua siab tshiab.Qhov qis dua qhov hluav taws xob muab hluav taws xob tau nce mus rau qhov tso zis ntau dua DC Voltage los ntawm kev ua haujlwm ntawm Boost Circuit.Lub zog hluav taws xob tsim hluav taws xob ntau dua tab sis qhov tso zis hluav taws xob me me (tsawg zog thiab tam sim no me me).
Lus Cim: Txawm hais tias lub hwj chim me me, Nws tsis pom zoo kom tus kheej kov qhov kev soj ntsuam, tseem yuav muaj qhov tingling.
Post lub sij hawm: Feb-06-2021
