Isishwankathelo
I-Drop out fuse sisixhobo sangaphandle sokukhusela i-high-voltage.Yeyona nto isetyenziswa ngokuqhelekileyo inguqu yokukhusela isiphaluka esifutshane kwimigca yesebe yemigca yokusabalalisa kunye nokusabalalisa i-transformers.Isetyenziselwa kakhulu ukukhusela abaguquli okanye imigca kwimpembelelo ebangelwa isiphaluka esifutshane, ukugqithiswa kunye nokutshintsha okwangoku.Ineempawu zoqoqosho, ukusebenza ngokufanelekileyo kunye nokuguquguquka okuqinileyo kwimeko yangaphandle.Ngaphantsi kwemeko yesiphoso sangoku, i-fuse iya kuvuthela kwaye yenze i-arc.Ityhubhu yokucima i-arc iyatshisa kwaye iqhume, ibangela umbane ophezulu.I-fuse ngoku ikwindawo evulekileyo kwaye umqhubi kufuneka acime okwangoku.Vala ngokufaka iteyiphu eshushu.Uqhagamshelwano oluphambili kunye noqhagamshelwano oluncedisayo luqhagamshelwe.Ifakwe kumgca wesebe we-10kV umgca wokusasaza, onokunciphisa uluhlu lokucima umbane.Ngenxa yokuba inomsebenzi ocacileyo wokuqhawula, unomsebenzi wokuqhawula ukudibanisa, ukudala indawo ekhuselekileyo yokusebenza kwimigca kunye nezixhobo kwicandelo lokugcinwa, kunye nokwandisa ingqiqo yokhuseleko lwabasebenzi bokulondoloza.
Ukulungisa ingxaki
(1) I-fuse kwicala eliphambili le-transformer isetyenziswe njengokhuseleko lokugcinwa kwe-transformer ngokwayo kunye necala lesibini eliphumayo lempazamo.Ihambelana nexesha lesenzo se-substation ephumayo yomgca wokukhusela i-relay yokukhusela, kwaye kufuneka ibe ngaphantsi kwexesha lokwaphulwa kwe-substation outlet circuit breaker.Kuyimfuneko ukuba i-fuse ixutywe kwaye i-breaker circuit outlet ayisebenzi.Ukuba umthamo we-transformer ungaphantsi kwe-100kV.A, i-fuse kwicala eliphambili inokukhethwa njengama-2-3 amaxesha ombane olinganisiweyo;Kwi-transformer yokusabalalisa i-100kV.A nangaphezulu, i-fuse kwicala eliphambili inokukhethwa njenge-1.5 ~ 2 amaxesha ombane olinganisiweyo.
(2) Umgca wesebe ongundoqo we-fuse usetyenziselwa ukhuseleko lomthwalo ogqithisiweyo.Ngokuqhelekileyo, i-current rated current ye-fuse ikhethwe ngokuhambelana nomthwalo ophezulu wangoku womgca wesebe.Ixesha lokuhlanganisa kufuneka libe ngaphantsi kwexesha lokumisela isixhobo sokhuseleko somgca ophumayo wesikhululo esiphumayo.
(3) I-akhawunti yokusebenza kunye nokugcinwa kunye nenkqubo ye-fuses yokuyeka iya kusekwa.Iifuse ezilahlayo ebezisebenza ngaphezulu kweminyaka emi-5 ziya kutshintshwa zibe ziibhetshi.
(4) Ukuphucula umgangatho wobugcisa kunye nenkqubo yokugcinwa kwabasebenzi bombane.Xa ufaka okanye utshintshe i-fuse, amandla aya kufaneleka ukuphepha ukukhululeka okanye ukuxinana kakhulu.
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Ukufakwa kweefusi zokuyeka
(1) Ngexesha lofakelo, i-melt kufuneka iqiniswe (ukuze inyibilike ikwazi ukumelana namandla obunzima malunga ne-24.5N), ngaphandle koko umnxibelelwano unokufudumala.I-fuse efakwe kwingalo yomnqamlezo (isakhelo) iya kuba yomelele kwaye ithembekile ngaphandle kokugubha okanye ukungcangcazela.
(2) Umbhobho wokunyibilika uya kuba ne-engile yokuthambekela ezantsi eyi-25 ° ± 2 °, ukuze ityhubhu yokunyibilikisa iwe ngokukhawuleza ngokobunzima bayo xa ivuthela inyibilika.
(3) I-fuse iya kufakwa kwingalo yomnqamlezo (isakhelo).Ngenxa yezizathu zokhuseleko, umgama othe nkqo ukusuka emhlabeni awuyi kuba ngaphantsi kwe-4m.Ukuba ifakwe ngaphezu kwe-transformer yokusabalalisa, umgama othe tye ongaphezulu kwe-0.5m uya kugcinwa ukusuka kumda we-contour yangaphandle ye-transformer yokusabalalisa.Ukuwa kombhobho onyibilikayo kubangele ezinye iingozi.
(4) Ubude be-fuse kufuneka bulungiswe ngokufanelekileyo.Iingqwalasela zokhuseleko zifuna ukuba idada likwazi ukugcina ngaphezulu kwesibini esithathwini sobude boqhagamshelwano emva kokuba luvaliwe ukunqanda ukungaziphathi kakubi ngexesha lokusebenza.Umbhobho we-fuse awuyi kubamba i-duckbill ukunqanda ityhubhu enyibilikayo ukuba iwe ngexesha emva kokuba inyibiliki ivuthelwe ngaphandle.
(5) Inyibilika esetyenzisiweyo kufuneka ibe yimveliso eqhelekileyo yomenzi oqhelekileyo kwaye ibe namandla athile omatshini.Iingqwalasela zokhuseleko zidla ngokufuna ukuba inyibilika ikwazi ukumelana nokuqina okungaphezulu kwe-147N.
(6) I-10kV yokulahla i-fuse ifakwe ngaphandle ukwenzela ukhuseleko kwaye umgama uyafuneka ukuba ube ngaphezu kwe-70cm.
Qaphela: Ngokubanzi, akuvumelekanga ukusebenzisa i-fuse yokulahla kumthwalo, kodwa kuvunyelwe kuphela ukusebenzisa izixhobo ezingenamthwalo (umgca).Nangona kunjalo, phantsi kweemeko ezithile, kuvunyelwe ukulayisha njengoko kufuneka
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