Ukuvikelwa kwe-surge kwemikhiqizo ye-elekthronikhi Kulinganiselwa ukuthi ukwehluleka okungama-75% emikhiqizweni ye-elekthronikhi kubangelwa ukuhamba kancane nokukhuphuka. Ama-voltage transients kanye nama-surges akhona yonke indawo. Amagridi kagesi, ukushaywa kombani, ukuqhuma, ngisho nabantu abahamba phezu kokhaphethi bazokhiqiza amashumi ezinkulungwane zamavolthi kagesi enziwe ngogesi. Laba ababulali abangabonakali bemikhiqizo ye-elekthronikhi. Ngakho-ke, ukuze kuthuthukiswe ukuthembeka kwemikhiqizo ye-elekthronikhi nokuphepha komzimba womuntu, kubalulekile ukuthatha izinyathelo zokuzivikela ngokumelene nama-voltage transients kanye nama-surges. Kunezizathu eziningi zokuhlinzwa. I-surge iyi-spike enezinga eliphezulu lokukhuphuka kanye nesikhathi esifushane. Ukweqisa kwegridi yamandla, ukuvutha kokushintsha, umthombo wokuhlehla, ugesi omile, umsindo wenjini/amandla, njll. zonke izici ezikhiqiza ukuphakama. Umvikeli ohlinzayo uhlinzeka ngendlela elula, eyongayo futhi ethembekile yokuvikela ukukhuphuka kwamandla kwempahla kagesi. Njengoba sonke sazi, imikhiqizo ye-elekthronikhi ivamise ukuhlangana nokudlula kwamandla kagesi okungalindelekile kanye nokukhuphuka ngesikhathi sokusetshenziswa, okuholela ekulimaleni emikhiqizweni kagesi. Umonakalo ubangelwa amadivaysi e-semiconductor emikhiqizweni ye-elekthronikhi (okuhlanganisa ama-diode, ama-transistors, ama-thyristors nama-circuits ahlanganisiwe, njll.) ashiswa noma aphukile. Indlela yokuqala yokuvikela ukusebenzisa inhlanganisela yamadivayisi amaningana adlula amandla kagesi kanye nokuvikela ukukhuphuka kwemishini ebalulekile nebizayo ephelele namasistimu ukwenza isekethe yokuvikela enamazinga amaningi. Indlela yesibili yokuvikela Ukugaya wonke umshini kanye nesistimu. Umhlabathi (umkhawulo ovamile) womshini wonke kanye nesistimu kufanele ihlukaniswe nomhlaba. Umshini wonke kanye nesistimu encane ngayinye ohlelweni kufanele ibe nesiphetho esifanayo esizimele. Lapho udlulisela idatha noma amasignali, umhlabathi kufanele usetshenziswe njengezinga lereferensi, futhi ucingo lomhlabathi (ubuso) kufanele lukwazi ukugeleza umsinga omkhulu, njengama-ampere angamakhulu amaningana. Indlela yesithathu yokuvikela ukusebenzisa i-voltage edlulayo kanye nezisetshenziswa zokuvikela ama-surge kuwo wonke umshini kanye nezingxenye ezibalulekile zohlelo (njengamamonitha ekhompyutha, njll.), ukuze ama-voltage adlulayo kanye nama-surges adlulele endaweni engaphansi kwesistimu kanye nohlelo oluncane ngokusebenzisa amadivaysi okuvikela. phansi, ukuze i-voltage yesikhashana kanye ne-amplitude ekhuphukayo engena kuwo wonke umshini nohlelo iyancipha kakhulu. Umvikeli ohlinzayo uhlinzeka ngendlela elula, eyongayo futhi ethembekile yokuvikela ukukhuphuka kwamandla kwempahla kagesi. Ngengxenye yokulwa nokuhlinzwa (i-MOV), amandla okuhlinzwa angangeniswa ngokushesha ekufakweni kombani kanye nokweqisa kokusebenza. Umhlaba, ukuvikela okokusebenza ekulimaleni.

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Isikhathi sokuthunyelwe: Jun-10-2022