Transformer testing yog ib qho tseem ceeb ntawm kev ua kom pom kev ua tau zoo thiab lub neej ntev ntawm lub zog transformers. Ntawm cov kev ntsuam xyuas ntau yam uas tuaj yeem ua tau, tan delta thiab capacitance tests yog tshwj xeeb tshaj yog muaj txiaj ntsig zoo rau kev ntsuas kev ua haujlwm rwb thaiv tsev ntawm lub zog hloov hluav taws xob. Hauv tsab xov xwm no, peb yuav tshawb xyuas yuav ua li cas ua qhov ntsuas tan delta ntawm lub tshuab hloov pauv, tseem hu ua qhov ntsuas hluav taws xob.
Transformer tan delta test ntsuas qhov dissipation factor (D) lossis poob lub kaum sab xis (δ) ntawm lub rwb thaiv tsev transformer. Qhov kev ntsuam xyuas pab txheeb xyuas qhov kev laus lossis kev puas tsuaj ntawm cov txheej txheem rwb thaiv tsev ntawm transformer. Kev ntsuas tan delta yog ib qho ntawm ntau qhov kev sim ua ntawm cov transformers los ntsuas qhov xwm txheej ntawm lawv cov rwb thaiv tsev. Lwm qhov muaj xws li kev ntsuas kev tiv thaiv hluav taws xob, kev ntsuas kev tiv thaiv winding, thiab kev ntsuas qhov sib piv.
Kev ntsuas tan delta yog ua los ntawm kev siv AC voltage rau lub transformer winding thiab ntsuas tam sim no uas ntws los ntawm rwb thaiv tsev. Qhov piv ntawm cov khoom siv hluav taws xob nquag mus rau qhov pom tseeb lub zog ntawm cov khoom tam sim no yog hu ua lub zog ua haujlwm. Ib qho hluav taws xob qis dua qhia tias tsis muaj hluav taws xob tsawg, uas txhais tau hais tias kev ua haujlwm rwb thaiv tsev zoo dua.
Txhawm rau ua qhov kev ntsuas tan delta, ua ntej, lub tshuab hloov pauv yuav tsum tau de-energized thiab txiav tawm ntawm lub hwj chim. Tag nrho cov kev ntsuas kev nyab xeeb yuav tsum raug soj ntsuam thaum ua qhov kev xeem. Tom ntej no, cov kev xeem coj yuav tsum tau txuas nrog lub terminals ntawm transformer winding yuav tsum tau kuaj. Nws yog ib qho tseem ceeb los xyuas kom meej tias cov hlau lead sib txuas yog nruj thiab zoo-insulated kom tsis txhob muaj arcing los yog sparking.
Lub capacitance ntawm lub transformer winding yog ces ntsuas siv ib tug high-voltage choj los yog capacitance meter. Tus nqi capacitance yog siv los xam qhov ntsuas qhov ntsuas hluav taws xob los siv rau qhov hloov pauv winding. Nws yog feem ntau nyob ib ncig ntawm 10% ntawm qhov ntsuas voltage ntawm winding.
Qhov ntsuas hluav taws xob yog tom qab ntawd siv rau lub winding, thiab tam sim no ntws los ntawm rwb thaiv tsev yog ntsuas los ntawm ammeter. Cov khoom siv hluav taws xob nquag yog xam los ntawm cov khoom ntawm qhov ntsuas hluav taws xob thiab qhov ntsuas tam sim no. Qhov pom tseeb lub zog tivthaiv yog xam los ntawm cov khoom ntawm qhov ntsuas hluav taws xob thiab lub peev xwm ntawm lub winding.
Tom qab ntawd, lub zog tseem ceeb yog xam raws li qhov piv ntawm cov khoom siv hluav taws xob ua haujlwm rau lub zog pom tseeb. Qhov tshwm sim yuav yog qhov feem pua ntawm cov nqi qhia qhov cuam tshuam los yog poob lub kaum sab xis ntawm lub rwb thaiv tsev transformer. Tus nqi qis qhia txog kev ua haujlwm zoo rwb thaiv tsev, thaum tus nqi siab dua qhia tias kev laus lossis kev puas tsuaj ntawm cov rwb thaiv tsev.
Transformer tan delta test yog ib qho cuab yeej siv tau los ntsuas qhov ntsuas hluav taws xob ntawm lub zog hluav taws xob. Ua qhov kev xeem kom raug thiab txhais cov ntsiab lus kom raug tuaj yeem pab txheeb xyuas cov teeb meem uas yuav tshwm sim thiab daws lawv ua ntej lawv dhau los ua teeb meem loj. Nrog rau lwm yam kev ntsuas transformer xws li qhov ntsuas qhov ntsuas, qhov kev sim no tuaj yeem pab ua kom pom kev ua tau zoo thiab kev ua haujlwm ntev ntawm lub zog transformers.
HYJS-H kuj tsis paub meej zaus dielectric poob tester yog cov cuab yeej siv high-precision ntsuas rau kev ntsuas qhov dielectric poob tangent tus nqi thiab capacitance ntawm ntau yam khoom siv hluav taws xob hluav taws xob hauv hluav taws xob, chaw nres tsheb, thiab lwm qhov chaw lossis chaw sim. Cov cuab yeej yog ib qho kev sib koom ua ke nrog ib tug built-in dielectric poob xeem choj, kuj tsis paub meej zaus voltage tswj fais fab mov, boost transformer thiab SF6 siab stability standard capacitor. Qhov kev ntsuam xyuas qhov hluav taws xob siab yog tsim los ntawm inverter hauv qhov ntsuas thiab yog siv rau qhov kev xeem tom qab tau txhawb nqa los ntawm lub transformer. Qhov zaus tuaj yeem hloov mus rau 50Hz, 47.5Hz \ 52.5Hz, 45Hz \ 55Hz, 60Hz, 57.5Hz \ 62.5Hz, 55Hz \ 65Hz, siv cov cuab yeej cuab tam digital, zam kev cuam tshuam ntawm lub zog zaus hluav taws xob teb ntawm qhov kev sim, kev daws teeb meem teeb meem ntawm kev ntsuas qhov tseeb nyob rau hauv kev cuam tshuam ntawm cov hluav taws xob muaj zog. Nyob rau tib lub sijhawm, nws yog qhov tsim nyog rau kev sim ntawm lub tshuab hluav taws xob fais fab tom qab tag nrho cov fais fab tuag. Qhov ntsuas tau nruab nrog lub khob roj insulated thiab ntsuas kub ntsuas ntsuas qhov dielectric poob ntawm cov roj insulated.