Kulumikizana kwa H0 mu thiransifoma yogawa magawo atatu ndi gawo lofunikira kwambiri pamapangidwe a thiransifoma, makamaka pankhani yokhazikika komanso kukhazikika kwadongosolo. Kulumikizana uku kukutanthauza kusalowerera ndale kapena poyambira pamagetsi apamwamba kwambiri (HV) omwe amakhotera mu thiransifoma, yomwe nthawi zambiri imatchedwa H0. Kugwira bwino ndi kulumikizana kwa H0 ndikofunikira kuti zitsimikizire kuti magwiridwe antchito amagetsi akuyenda bwino komanso otetezeka.
Kodi H0 mu Transformer ya magawo atatu ndi chiyani?
H0 imayimira malo osalowerera ndale ya mafunde apamwamba kwambiri mu thiransifoma ya magawo atatu. Ndipamene mapindikidwe ake amadutsana ndi kasinthidwe ka wye (nyenyezi), kupanga malo osalowerera ndale. Malo osalowererawa atha kugwiritsidwa ntchito pokhazikitsa maziko, kupereka malo okhazikika pamakina komanso kukulitsa chitetezo chonse chamagetsi.
Kufunika kwa H0 Grounding
Kuyika nsonga ya H0 kumagwira ntchito zingapo zofunika:
1.Kukhazikika Kwadongosolo ndi Chitetezo: Pokhazikitsa H0, dongosololi lili ndi malo okhazikika, omwe amathandiza kuti magetsi azikhala okhazikika pamagawo onse. Kugwirizana kumeneku kumachepetsa chiopsezo cha zinthu zowonongeka, zomwe zingachitike chifukwa cha katundu wosagwirizana kapena zolakwika zakunja.
2.Chitetezo cha Mphamvu: Kuyika nsonga ya H0 kumalola kuti mafunde olakwika ayende pansi, kupangitsa zida zodzitchinjiriza monga zowononga madera ndi ma relay kuti azindikire ndikupatula zolakwika mwachangu. Izi zimathandiza kuchepetsa kuwonongeka kwa transformer ndi zida zolumikizidwa, kuonetsetsa kuti ntchito yotetezeka ipitirire.
3.Kuchepetsa kwa Harmonic: Kuyika koyenera kwa H0 kumathandiza kuchepetsa kukhudzidwa kwa ma harmonics mkati mwa dongosolo, makamaka ma harmonics a zero-sequence omwe amatha kuyendayenda mopanda ndale. Izi ndizofunikira makamaka m'makina omwe zida zamagetsi zamagetsi zimagwiritsidwa ntchito, chifukwa ma harmonics amatha kusokoneza ndikuchepetsa moyo wa zida.
4.Kuchepetsa kwa Magetsi Osakhalitsa: Kuyika mfundo ya H0 kungathandizenso kuchepetsa kuwonjezereka kwapang'onopang'ono komwe kumachitika chifukwa cha kusintha kwa ntchito kapena kugunda kwamphezi, potero kuteteza thiransifoma ndi katundu wolumikizidwa.
Mitundu ya H0 Grounding
Pali njira zingapo zodziwika zokhazikitsira mfundo ya H0, iliyonse ili ndi ntchito yake:
1.Kuyika Pansi Molimba: Njirayi imaphatikizapo kulumikiza H0 molunjika pansi popanda cholepheretsa chilichonse. Ndizosavuta komanso zogwira mtima pamakina otsika komanso apakati-voltage pomwe mafunde olakwika amatha kuwongolera.
2.Resistor Grounding: Mwa njira iyi, H0 imalumikizidwa pansi kudzera pa chopinga. Izi zimachepetsa vuto lamakono kuti likhale lotetezeka, kuchepetsa nkhawa pa transformer ndi zipangizo zina panthawi ya zolakwika za pansi. Amagwiritsidwa ntchito kwambiri pamakina apakati-voltage.
3.Reactor Grounding: Apa, riyakitala (inductor) imagwiritsidwa ntchito pakati pa H0 ndi nthaka. Njirayi imapereka kulepheretsa kwakukulu kuti muchepetse mafunde olakwika ndipo nthawi zambiri amagwiritsidwa ntchito m'makina apamwamba kwambiri pomwe kukula kwamphamvu kumafunika kuwongoleredwa.
4.Osakhazikika kapena Oyandama: Nthawi zina zapadera, mfundo ya H0 siinakhazikike konse. Kapangidwe kameneka kamakhala kocheperako ndipo kaŵirikaŵiri kumagwira ntchito m'mafakitale enaake kumene kudzipatula kumafunika.
Njira Zabwino Kwambiri pa H0 Grounding
Kuti muwonetsetse kuti chosinthira cha magawo atatu chikuyenda bwino, njira zingapo zabwino ziyenera kutsatiridwa pokhudzana ndi kukhazikitsa kwa H0:
1.Kupanga Moyenera ndi Kuyika: Mapangidwe a H0 grounding system ayenera kutengera zofunikira zomwe zimagwiritsidwa ntchito, poganizira zinthu monga zolakwika zamakono, mphamvu zamagetsi, ndi chilengedwe.
2.Kuyesedwa Kwanthawi Zonse ndi Kusamalira: Njira zoyatsira pansi ziyenera kuyang'aniridwa ndikuyesedwa nthawi zonse kuti zitsimikizire kuti zilibe njira yotsika yotsika. M'kupita kwa nthawi, zolumikizira zimatha kuwonongeka kapena kutayika, zomwe zimachepetsa mphamvu yake.
3.Kutsata Miyezo: Njira zoyankhira ziyenera kutsata miyezo ndi malamulo amakampani, monga omwe amakhazikitsidwa ndi IEEE, IEC, kapena makhodi amagetsi apafupi.
Mapeto
Kulumikizana kwa H0 mu thiransifoma yogawa magawo atatu ndi gawo lofunikira lomwe limagwira ntchito yofunika kwambiri pakukhazikitsa ndi kukhazikika kwadongosolo lamagetsi. Kuyika bwino pansi H0 sikumangowonjezera chitetezo cha dongosolo ndi chitetezo cha zolakwika komanso kumathandizira kuti ma network amagetsi aziyenda bwino.
Nthawi yotumiza: Sep-18-2024