Umsebenzi wemfumba yokutshaja ufana nowokukhupha amafutha kwisikhululo segesi. Inokulungiswa emhlabeni okanye eludongeni, ifakwe kwizakhiwo zikawonkewonke (izakhiwo zikawonke-wonke, iindawo zokuthenga, iindawo zokupaka zikawonke-wonke, njl.) kunye neendawo zokuhlala zokupaka okanye izikhululo zokutshaja, kwaye uhlawule iintlobo ezahlukeneyo zezithuthi zombane ngokwamanqanaba ombane ahlukeneyo. Isiphelo segalelo semfumba yokutshaja iqhagamshelwe ngokuthe ngqo kwigridi yamandla e-AC. Iitheminali eziphumayo zahlulwe kwi-AC kunye ne-DC, kwaye zixhotyiswe ngeeplagi zokutshaja ukuhlawula izithuthi zombane.
Ukhuseleko kunye nokuthembeka kufuneka kuthathelwe ingqalelo kuyilo lwemfumba yokutshaja. Ke ngoko, izixhobo ezikhuselekileyo nezithembekileyo zokhuseleko kufuneka zisetyenziselwe ukukhuselwa kwe-overcurrent kunye ne-overvoltage ekupheleni kwegalelo, ukuphela kwemveliso kunye nonxibelelwano lonxibelelwano. Apha sincoma i-voltage ephezulu kunye ne-fuse ephezulu yangoku spfj160 ukusuka kwi-Littelfuse, inkokeli kushishino lwe-fuse. Lo mzekelo sisisombululo esifanelekileyo sokukhusela isiphaluka kwimveliso ye-DC yemfumba yokutshaja kwaye isetyenziswe ngokubanzi kwintsimi yokutshaja.
I-Spfj series yi-fuse yokuqala edweliswe kwikhathalogu ye-certification ye-ul2579 kumashishini ombane, esetyenziselwa ukukhusela i-1000VDC, i-70-450a yombane ophezulu kunye nezixhobo eziphezulu zangoku. Uyilo kunye nokuveliswa kwayo kuhlangabezana neemfuno zomgangatho we-IEC 60269-6, kwaye udlulise isiqinisekiso sesicelo se-VDE 125-450a. Le migangatho engqongqo inokuqinisekisa ukhuseleko lwezixhobo kunye nabasebenzi, ukwenza uthotho lwe-spfj lube yimveliso yehlabathi ngokwenene. Iimveliso ze-125-450a zibonelela ngobungakanani bezindlu ze-J-Class, ezinokugcina indawo eninzi kubenzi bezixhobo kunye nokunciphisa kakhulu iindleko. Kwangaxeshanye, i-Littelfuse ye-arhente ye-Shiqiang inokubonelela ngesibambi se-fuse se-1000VDC kolu luhlu ukuhlangabezana neemfuno ezizodwa zokusetyenziswa kwabanye abathengi.
I-voltage elinganisiweyo ye-spfj160 yi-1000VDC / 600vac kwaye i-current rated yi-160A, enokuthi ihlangabezane neemfuno ze-DC zokutshaja iimfumba zamanqanaba ahlukeneyo. Ilinganiswe ngokuphulwa kwangoku ukuya kuthi ga kwi-200KA@600VAC mhlawumbi 20KA@1000VDC, i-high rated breaking current ithetha ukuba i-fuse ayinakwenzeka ukuba iqhume phantsi kweemeko zomda, ngoko ikhuselekile kwaye ithembekile.
Ixesha lokuposa: Feb-22-2021