Muaj tus ntsuas hluav taws xob nyob hauv qhov ntsuas ntawm qhov fuse. Dab tsi yog ob lub ntsiab lus ntawm qhov hluav taws xob no? Dab tsi yog qhov cuam tshuam yog tias nws tshaj nws tshaj?
Lub hom phiaj ntawm lub fuse yas dhos yog: ua ntej, nws yog siv los ua qhov kev txhawb nqa rau fuse core los nruab thiab kho qhov fuse core; qhov thib ob, nws yog siv los ua qhov sib cuam tshuam ntawm kev fuse thiab sab nraud.
Lub hom phiaj ntawm fuse tub ntxhais yog: kom ua qhov luv luv ntawm kev tiv thaiv thiab kev tiv thaiv tshaj, ntawm chav kawm, fuse tub ntxhais yog tshuab.
Yog li no, rau qhov fuse, nws cov ntsuas hluav taws xob hais txog qhov hluav taws xob nruab nrab ntawm ob qhov kawg ntawm qhov fuse tuav. Tau kawg, lub fuse yuav tsum tau muab tshem tawm thaum lub sijhawm kuaj. Peb twb pom tias qhov ntsuas qhov ntsuas hluav taws xob yog qhov muaj nuj nqis ntawm cov nqi uas phim cov movies tam sim no. Muaj tus nqi siab tshaj plaws hauv cov koob no, uas yog cov ntsuas hluav taws xob voltage. Cov ntsuas hluav taws xob ntsuas muaj feem cuam tshuam nrog ob yam, ib qho yog qhov ntsuas qhov ua tau dielectric muaj peev xwm, thiab lwm qhov yog qhov nkag ntawm qhov chaw nkag.
Rau qhov fuse, muaj ob lub qhov hluav taws xob, 2.5.47 thiab 2.5.48, qhov twg 2.5.47 hais txog qhov sib txawv nruab nrab ntawm cov chaw nres nkoj sab saud thiab qis dua ntawm cov fuse; thiab qhov sib txawv nruab nrab ntawm txhua qhov chaw nres nkoj thiab hauv av Nws yog cov hluav taws xob ntshiab tau piav qhia hauv 2.5.48. Raws li rau qhov chaw nkag mus, nws yog hais txog qhov kev ncua luv nruab nrab ntawm lub davhlau ya nyob twg thiab hauv av raws saum npoo ntawm cov khoom siv insulating mus rau hauv av, thiab nws sawv cev rau lub peev xwm rwb thaiv tsev thiab qhov ntsuas pa phem nyob rau saum npoo ntawm cov khoom siv fuse. Nrog cov ntsiab lus saum toj no, peb tuaj yeem mus rau qhov xaus ntawm qhov teeb meem tseem ceeb: qhov ntsuas hluav taws xob Ue hauv qhov fuse tsis hais txog qhov hluav taws xob uas qhov chaw sau npe sab saud thiab qis dua ntawm fuse yas dais tom qab lub fuse raug tshem tawm, thiab qhov voltage uas ib qho davhlau ya nyob twg tuaj yeem dais rau hauv av. Cov voltage tom qab no tseem hu ua rated rwb thaiv tsev voltage Ui. Cov rated rwb thaiv tsev voltage Ui yog tus nqi siab tshaj plaws hauv koob ntawm cov ntsuas cov nqi Ue. Thaum lub fuse raug siv, nws cov ntsuas hluav taws xob yuav tsum tsis tshaj qhov ntsuas rated hluav taws xob voltage Ui. Thaum kawg, ob peb nqe lus nug rau qhov kev kawm:
Thawj nqe lus nug: Thaum peb txhim kho qee yam khoom siv hluav taws xob nyob rau hauv qhov chaw siab toj siab nrog qhov siab tshaj ntawm ntau dua 2000 metres, puas yuav muaj qhov ntsuas ntawm cov fuse hauv cov khoom siv hluav taws xob?
Lo lus nug thib ob: thaum lub fuse siv nyob rau hauv qhov chaw uas cov av noo, lossis muaj kuab paug rau roj thiab hmoov av, yuav ua li cas rau nws ntawm qhov ntsuas hluav taws xob ntawm cov fuse?
Qhov thib peb nqe lus nug: Thaum lub fuse siv rau ntev ntev yam tsis muaj cuam tshuam, nws puas yuav cuam tshuam rau qhov ntsuas hluav taws xob ntawm lub fuse? Peb yuav tsum ua li cas?
Plaub nqe lus nug: Puas yog cov fuse tseem muaj qhov ntsuas qhov hluav taws xob? Puas yog qhov zoo ntawm fuse tub ntxhais cuam tshuam txog qhov ntsuas rated lossis qhov ntsuas tam sim no?
Rau cov lus nug saum toj no, Kuv yuav tshaj tawm cov lus teb hauv lub sijhawm.
