Capacitance thiab dissipation factor tests yog cov cuab yeej kuaj mob tseem ceeb rau lub zog hloov hluav taws xob. Cov kev ntsuam xyuas no pab txiav txim siab txog qhov hloov pauv ntawm cov rwb thaiv tsev, uas yog ib qho tseem ceeb rau kev tiv thaiv kev poob siab thiab kev txhim kho lub transformer kev ua tau zoo thiab lub neej ntev.
Capacitance yog ib qho kev ntsuas ntawm lub transformer lub peev xwm los khaws cov nqi hluav taws xob ntawm ib qho voltage. Kev ntsuam xyuas suav nrog ntsuas lub peev xwm ntawm txhua qhov cua thiab hauv av, nrog rau ntawm tus kheej windings. Ib qho kev hloov pauv hauv lub sijhawm dhau sijhawm tuaj yeem qhia txog kev laus ntawm rwb thaiv tsev lossis muaj cov dej noo lossis lwm yam kab mob hauv lub tshuab hloov pauv.
Dissipation factor, tseem hu ua tan delta, ntsuas lub zog poob hauv cov khoom siv rwb thaiv tsev. Qhov kev poob no tuaj yeem ua rau cua sov thiab kev puas tsuaj rau lub transformer, yog li nws yog ib qho tseem ceeb los saib xyuas cov theem ntawm dissipation yam. Qhov kev sim no suav nrog kev siv AC voltage rau lub transformer thiab ntsuas qhov piv ntawm lub zog poob rau lub zog khaws cia hauv qhov rwb thaiv tsev.
Ob qhov kev ntsuam xyuas capacitance thiab dissipation factor tuaj yeem ua tiav ib txhij siv cov khoom siv tshwj xeeb. Cov cuab yeej no ua kom muaj qhov tsawg zaus AC voltage thiab ntsuas qhov tam sim no thiab theem lub kaum sab xis ntawm transformer windings. Los ntawm kev sib piv cov peev txheej thiab qhov cuam tshuam qhov tseem ceeb rau cov qauv kev lag luam, cov kws tshaj lij tuaj yeem txiav txim siab lub tshuab hluav taws xob tag nrho cov rwb thaiv tsev.
Lub tshuab hluav taws xob rwb thaiv tsev tuaj yeem ua rau lub sijhawm tsis zoo vim yog thermal cycling, noo noo, thiab lwm yam ib puag ncig. Tsis tas li ntawd, kev tsim khoom tsis raug lossis kev teeb tsa tsis raug tuaj yeem ua rau muaj teeb meem cuam tshuam los ntawm qhov pib. Kev rwb thaiv tsev tsis ua haujlwm tuaj yeem ua rau lub sijhawm poob qis, kev puas tsuaj ntawm lub tshuab hluav taws xob, thiab txawm tias muaj kev phom sij rau cov neeg ua haujlwm thiab cov khoom siv.
Los ntawm kev ua tsis tu ncua kev ntsuas qhov ntsuas hluav taws xob thiab dissipation, cov tswv hloov pauv thiab cov neeg ua haujlwm tuaj yeem tau txais kev pom zoo rau kev noj qab haus huv ntawm lawv cov khoom siv thiab ua cov kauj ruam tiv thaiv kev ua tsis tiav. Piv txwv li, yog tias qhov kev ntsuam xyuas pom muaj qhov cuam tshuam loj heev, lub tshuab hloov pauv tuaj yeem ua cov roj purged, qhuav, los yog rov ua dua tshiab los txhim kho nws cov kev ua tau zoo. Ib yam li ntawd, yog tias tus nqi capacitance hloov pauv raws sijhawm, nws tuaj yeem qhia tau tias lub transformer muaj kev pheej hmoo ntawm kev ua tsis tiav thiab yuav tsum tau saib xyuas kom zoo dua.
HUAYI developed the capacitance and dissipation factor tester which has multiple test modes：It can test by internal high voltage, external high voltage, internal standard,external standard, positive connection method, reverse connection method, self-excitation method and other methods;High voltage (>10kV) dielectric poob tuaj yeem ua tau raws li cov txheej txheem sab nraud sab nraud siab voltage. Nrog CVT xeem: tuaj yeem kuaj CVT (capacitor voltage transformer) C1 / C2 ntawm dielectric poob thiab capacitance, tuaj yeem kuaj C1 / C2 ib txhij. Kuj tseem tuaj yeem kuaj CVT Variation ratio thiab voltage Angle sib txawv
Capacitive thiab dissipation factor tests yog cov cuab yeej tseem ceeb rau kev ua haujlwm ruaj khov thiab muaj kev nyab xeeb ntawm lub zog hloov hluav taws xob. Los ntawm kev saib xyuas cov txheej txheem rwb thaiv tsev thiab txheeb xyuas cov teeb meem muaj peev xwm ua ntej lawv dhau los ua qhov tseem ceeb, cov tswv thiab cov tswv lag luam tuaj yeem txuag nyiaj, sijhawm, thiab tiv thaiv cov xwm txheej txaus ntshai.