Izichasi zombane eziphezulubhekisa kwizixhobo ezixhathisayo ezinokumelana nombane ophezulu. Ngokuqhelekileyo, i-resistors ene-voltage elinganisiweyo ye-1 kV (i-kilovolts) nangaphezulu ibizwa ngokuba yi-resistors yombane ophezulu, kwaye i-voltage elinganisiweyo ye-high-voltage resistors inokufikelela kumakhulu eekilovolthi.
Kukho iintlobo ezininzi kunye nezakhiwo ze-resistors zombane ophezulu. I-resistantivity ye-high-voltage resistors iphezulu, kwaye amandla e-dielectric yezinto ngokwawo nawo aphezulu. Ke ngoko, inokusebenza ngokuzinzileyo kwiimeko ezinzima ezinje ngevoltheji ephezulu, ubushushu obuphezulu, kunye nokufuma okuphezulu. Ukongeza, i-resistors ephezulu ye-voltage nayo kufuneka ibe namandla okwaneleyo okugquma kunye neempawu zobungqina bobumanzi ukuphepha ukuphuka phantsi kweendawo zombane eziphezulu. Ukuba kukho iimfuno ezikhethekileyo, kufuneka kwakhona ibe neempawu ezifana ne-anti-high frequency, anti-interference, overload, kunye nokukhusela umlilo.
Ke ngoko, izinto ezixhathisa amandla ombane aphezulu zizixhobo ezichasayo ngokuchaneka okuphezulu, ukuthembeka okuphezulu kunye nokumelana nombane ophezulu. Zisetyenziswa ngokubanzi kunikezelo lwamandla ombane aphezulu, izixhobo zokuvavanya, izixhobo zamandla, iinkqubo zokuqaphela umfanekiso, ii-accelerators zamasuntswana kunye nezinye iinkalo.
Ngoko ke,izixhasi zombane eziphezuluzinezi mpawu zisixhenxe zilandelayo:
Amandla ombane aphezulu: Izichasi zombane eziphezulu zinemilinganiselo yombane ephezulu kwaye ziyakwazi ukumelana nombane osuka kumawaka ukuya kumakhulu eekhilovolthi.
Ixabiso eliphezulu lokuchasa: Ekubeni i-resistors high-voltage idla ngokusetyenziswa kwizicelo eziphezulu ze-voltage, ixabiso labo lokumelana lihlala lilikhulu kwaye linokufikelela kumakhulu e-megaohms okanye ngaphezulu.
Ukumelana nombane ophakamileyo: Izichasi zombane eziphezulu kufuneka zisebenze ngokuzinzileyo kwiindawo ezinombane ophezulu.
Izinzile ngakumbi: Abaxhamli be-high-voltage kufuneka basebenze kwiindawo ezinoxinzelelo oluphezulu kunye nobushushu obuphezulu ixesha elide, ngoko ukuzinza nokuthembeka kwabo kufuneka kuqinisekiswe. Ukuzinza okuhle kwe-thermal: I-resistors ephezulu ye-voltage iyakwazi ukukhukuliseka ngenxa yokushisa okuphezulu, ngoko ke i-resistors ephezulu ye-voltage kunye nokuzinza okulungileyo kwe-thermal inokuqinisekisa ngcono ukuchaneka kwesekethe.
Ukugquma okuphezulu: Izinto ezixhathisa amandla ombane aphezulu kufuneka zibe neempawu zokugquma ezifanelekileyo ukunqanda imiba yokhuseleko efana nokuqhekeka kombane kunye nokuvuza.
Ukuchaneka okuphezulu: I-resistors ephezulu ye-voltage isetyenziswa kakhulu kwiisekethe okanye izixhobo ezifuna ukuchaneka okuphezulu, ngoko ke ukuchaneka okuphezulu kuyadingeka. Ngokusekwe kwezi mpawu zingasentla, ezi zinto zintandathu zilandelayo kufuneka ziqwalaselwe xa kukhethwa izixhasi ezinombane ophezulu:
I-voltage elinganisiweyo: Kuyafuneka ukuba kuqinisekiswe ukuba i-voltage elinganisiweyo ye-high-voltage resistor ekhethiweyo iyahlangabezana neemfuno zokwenyani. Xa ukhetha i-resistor, kufuneka uqinisekise ukuba i-voltage yayo elinganisiweyo iphezulu kune-voltage yokusebenza yesekethe, ngokukhethekileyo ngaphezu kokuphindwe kabini, ukuqinisekisa ukuba i-resistor ayiyi kusilela okanye yonakaliswe ngexesha lokusetyenziswa.
Ixabiso lokumelana: Ixabiso lokuchasana le-resistor ephezulu ekhethiweyo kufuneka igqitywe ngokusekelwe kumsebenzi wesiphaluka ofunekayo kunye neemfuno zoyilo.
Ukuba ufuna ukunciphisa i-voltage ephezulu, unokukhetha ixabiso eliphezulu le-resistor; ukuba ufuna ukumelana nangoku kwi-voltage ephezulu, unokukhetha ixabiso eliphantsi le-resistor.
Ukuchaneka kokumelana: Kwiisekethe ezichanekileyo okanye izixhobo ezichanekileyo,izixhasi zombane eziphezulungokuchaneka okuphezulu kufuneka kukhethwe. Ukuba ukuchaneka kwesiphaluka akuphezulu, unokukhetha i-resistor high-voltage ngokuchaneka ngokubanzi.
Ukuthembeka: Kuyimfuneko ukuba ukhethe i-resistors high-voltage enokuthi isebenze ngokuzinzileyo kwiqondo lokushisa eliphezulu, ukufuma okuphezulu, ungcoliseko kunye nezinye iindawo. Kwiisekethe kunye nokusetyenziswa kwexesha elide okanye okuqhubekayo, kuyimfuneko ukukhetha i-resistors high-voltage kunye nokuthembeka okulungileyo.
Ukukhuselwa kokusingqongileyo: Ngokuphuculwa kolwazi lwendalo esingqongileyo, i-resistors ye-high-voltage ehambelana nokusingqongileyo nayo ifumene ingqalelo engakumbi nangakumbi. Kuyimfuneko ukuba ukhethe iimveliso zokumelana ne-high-voltage ezihlangabezana nemigangatho yokukhusela indalo.
I-Brand: Kungcono ukhethe abavelisi kunye neempawu ezibonakalayo eziphezulu, idumela elihle kunye nomgangatho oqinisekisiweyo.
