Tag nrho cov bushings yuav tsum tau lub hwj chim factored ua ntej lawv muab tso rau hauv lub transformer. Yog tias lub hwj chim Factor teeb tsis muaj nyob rau thaum lub tshuab hloov pauv tshiab tau sib sau ua ke, tus choj capacitance yuav tsum, tsawg kawg, siv los ntsuas qhov ntsuas qhov ntsuas qhov ntsuas ntawm bushing. Ntsuas qhov tseem ceeb rau ob qho tib si C1 thiab C2 (tshwj xeeb tshaj yog tias lawv tau teev nyob rau hauv daim ntawv teev npe bushing). Ib qho kev ntsuam xyuas capacitance kom zoo tuaj yeem qhia seb puas muaj teeb meem loj nrog lub bushing tshwm sim ua ntej tso thiab seb qhov ntsuas hluav taws xob puas yuav raug pom zoo. Megger lub bushing thiab nws kais ntawm 2500 volts yog tias tsis muaj Power Factor teeb.Txheeb xyuas qhov ntsuas hluav taws xob thaiv hluav taws xob ua ntej siv 2500 volts; me me bushings yuavtuaj yeem tiv taus tsis pub ntau tshaj 500 lossis 1000 volts ntawm tus kais dej.
Lub transformer nws tus kheej yuav tsum tau lub hwj chim factored sai sai tom qab lub qhuav txheej txheem tiav thiab lub tank yog ntim nrog roj. Tag nrho cov bushings yuav tsum tau rov ua lub zog ntawm lub sijhawm no vim tias lawv cov ntawv nyeem yuav hloov me ntsis tom qab sib dhos. Cov ntaub ntawv ua tiav ntawm Cov Khoom Siv Hluav Taws Xob yuav tsum muaj xws li winding-to-winding, winding-to-ground, thiab bushing tests. Yog tias muaj ib qho 10-kV fais fab xwm txheej teeb, yuav tsum tau ua ib qho kev xeem Winding Excitation. Kev xeem Winding Excitation ntawm cov transformers loj heev yuav tsis tuaj yeem ua tau vim tsis muaj peev xwm ntawm Lub Hwj Huam Fais Fab tau teeb tsa rau kev muab cov kev xav tau tam sim no.