Mayelana nesizathu sokushiswa kwe-varistor
Kumjikelezo, indima ye-varistor yile: okokuqala, ukuvikelwa kwe-overvoltage;okwesibili, izidingo zokumelana nombani;okwesithathu, izidingo zokuhlola ukuphepha.Khona-ke kungani i-varistor ishisa kumjikelezo?Siyini isizathu?
Ama-Varistors ngokuvamile adlala indima ekuvikelweni kwamandla kagesi kumasekhethi, futhi angasetshenziswa namafuse okushaya umbani noma okunye ukuvikela i-overvoltage.Ngokuvamile isetshenziselwa ukuvikela umbani.Uma kwenzeka i-overvoltage, i-varistor izophulwa futhi isifunda esifushane sizokwenzeka, ukuze i-voltage emikhawulweni yomibili ye-varistor izoboshelwa endaweni ephansi.Ngesikhathi esifanayo, i-overcurrent ebangelwa isifunda esifushane izoshisa i-fuse yangaphambili noma Phoqelela ukushintshwa komoya, ngaleyo ndlela kunqamule ukunikezwa kwamandla.Ngokuvamile, kunomphumela omncane kwezinye izingxenye ze-elekthronikhi ngemva kokulimala, vele uhlole izingxenye zesifunda ezixhunywe kuyo.Uma kwenzeka umonakalo wokubhoboza, i-fuse izovunguza.
Lapho i-voltage ingaphansi kwe-voltage elinganiselwe ye-varistor, ukumelana kwe-varistor akupheli futhi akunawo umthelela kumjikelezo.Lapho i-voltage kumjikelezo idlula i-varistor voltage, ukumelana kwe-varistor kuzokwehla ngokushesha, okuzodlala indima ye-shunt ne-voltage limiting, futhi i-fuse kumjikelezo ofanayo izoshaywa ukuze idlale indima yokuvikela.Uma kungekho fuse kumjikelezo, i-varistor izoqhuma ngokuqondile, yonakaliswe futhi ihluleke, ilahlekelwe umphumela wayo wokuvikela, futhi ibangele ukuthi isifunda esilandelayo sishise.
Izizathu ezintathu ezingenhla yizizathu ezenza i-varistor ishise kumjikelezo.Ukunakwa okukhethekile kufanele kukhokhwe ekusebenzeni esikhathini esizayo ukuze kugwenywe ukulimala ku-capacitor.
Isikhathi sokuthumela: Feb-18-2022