Makasitomala ena, akamapita ku fakitale, amafunsa funso ngati zinthu zamagalimoto zitha kuyesedwa mobwerezabwereza ndi dielectric standing voltage. Funsoli lafunsidwanso ndi ogwiritsa ntchito magalimoto ambiri. Kuyesa kwa dielectric standing voltage ndi mayeso ozindikira momwe ma windings a mota amagwirira ntchito popanga, komanso kuyesa zinthu zonse za makina. Chofunikira pakuyesa kuyenerera ndikuti insulation siyimaphwanyidwa pansi pazifukwa zinazake.
Kuti zitsimikizire kuti magwiridwe antchito a injini akukwaniritsa zofunikira, kuwonjezera pa kusankha waya wamagetsi woyenera komanso zipangizo zotetezera kutentha, zitsimikizo zodalirika zogwirira ntchito ndizofunikiranso. Mwachitsanzo, chitetezo panthawi yokonza, zida zoyenera, zida zabwino zothira madzi, ndi magawo oyenera a njira yogwirira ntchito.
Potengera ma winding a ma mota amphamvu kwambiri, opanga magalimoto ambiri amachita mayeso a turn-to-turn ndi dielectric standing voltage pa coil iliyonse. Asanalowe m'thupi, pakati pa ma winding ndi makina onse panthawi yowunikira adzayesedwa ma volteji a dielectric standing. Izi zikutibwezera ku kukayikira kwa makasitomala pankhani ya dielectric standing.
Kunena zoona, kuyesa kwa magetsi opirira magetsi (dielectric stabilizer testing) ndi kuyesa kowononga kosatha. Kaya ndi kwa ma windings kapena ma coils amodzi ndi amodzi, sikulimbikitsidwa kuchita mayeso obwerezabwereza, ndikufunika kupeza mavuto ngati maziko. Muzochitika zapadera pamene kuyezetsa mobwerezabwereza kumafunika, magetsi oyesera ayenera kuchepetsedwa malinga ndi zofunikira zoyenera kuti achepetse kuwonongeka kwa insulation momwe angathere.
Ponena za Dielectric Withstand Voltage Tester
Choyesera magetsi chokhazikika cha dielectric ndi chida choyezera mphamvu ya magetsi okhazikika a dielectric. Chingathe kuyesa zizindikiro zosiyanasiyana za chitetezo chamagetsi monga magetsi okhazikika, magetsi owonongeka, ndi kutayikira kwa zinthu zoyesedwa. Kudzera mu choyesera magetsi chokhazikika cha dielectric, mavuto amapezeka ndipo kutsata magwiridwe antchito a insulation kumatha kudziwika.
● Dziwani mphamvu ya insulation yolimba kuti ipirire mphamvu yogwira ntchito kapena mphamvu yopitirira muyeso.
● Yang'anani mtundu wa zinthu zotetezera kutentha zomwe zimapangidwa kapena kukonza zipangizo zamagetsi.
● Chotsani kuwonongeka kwa zinthu zotetezera kutentha komwe kumachitika chifukwa cha zipangizo zopangira, kukonza, kapena kunyamula, ndipo chepetsani kulephera msanga kwa zinthu.
● Yang'anani ngati magetsi akugwirizana ndi momwe zinthu zotetezera magetsi zimayendera komanso ngati pali mtunda woti magetsi azilowamo.
Mfundo Zosankha Voltage Yoyesera ya Dielectric Withhold Voltage
Njira yabwino yodziwira mphamvu yamagetsi yoyesera ndiyo kuiyika motsatira zofunikira pa mayesowo. Nthawi zambiri, mphamvu yamagetsi yoyesera imayikidwa kawiri kuposa mphamvu yamagetsi yoyesedwa kuphatikiza 1000V. Mwachitsanzo, ngati chinthu chili ndi mphamvu yamagetsi ya 380V, mphamvu yamagetsi yoyesera ingakhale 2 x 380 + 1000 = 1760V. Zachidziwikire, mphamvu yamagetsi yoyesera ingasiyanenso kutengera gulu la insulation ndipo mitundu yosiyanasiyana yazinthu ili ndi zofunikira zosiyanasiyana za mphamvu yamagetsi.
N’chifukwa chiyani n’kofunika kuyang’ana pafupipafupi umphumphu wa dera loyesera?
Ma dielectric standing voltage testers omwe ali pamzere wopanga amagwiritsidwa ntchito pafupipafupi, makamaka ma test leads ndi ma test fixtures omwe nthawi zambiri amayenda, zomwe zimapangitsa kuti azisweka ndi waya wamkati komanso ma circuits otseguka, omwe nthawi zambiri samakhala osavuta kuwazindikira. Ngati pali circuit yotseguka nthawi iliyonse mu loop, mphamvu yamagetsi yotuluka ndi dielectric standing voltage tester siyingagwiritsidwe ntchito pa chinthu choyesedwa. Zifukwa izi zitha kupangitsa kuti voltage yayikulu isagwiritsidwe ntchito pa chinthu choyesedwa panthawi yoyesa mphamvu ya dielectric standing, ndipo mwachibadwa, mphamvu yamagetsi yomwe ikuyenda mu chinthu choyesedwa idzakhala pafupifupi zero. Popeza siipitirira malire apamwamba omwe adayikidwa ndi dielectric standing voltage tester, chidacho chidzapereka chidziwitso kuti mayesowo ndi oyenerera, poganizira kuti insulation ndi yoyenera. Komabe, deta yoyesera pankhaniyi si yowona. Ngati chinthu choyesedwa chili ndi zolakwika pakuteteza panthawiyi, zingayambitse kulakwitsa kwakukulu.
Nthawi yotumizira: Januwale-16-2025