1. Ababoshiwe banamazinga kagesi amaningana, ukusuka ku-0.38kv low voltage kuya ku-500kV UHV, kuyilapho izinto zokuvikela ezikhuphukayo ngokuvamile ziyimikhiqizo yamandla kagesi aphansi;
2. Iningi lababoshiwe lifakwe ohlelweni oluyinhloko ukuvimbela ukuhlasela okuqondile kwegagasi lombani, kuyilapho iningi labavikeli bokuhlinzwa lifakwe ohlelweni lwesibili, okuyisinyathelo sokwengeza ngemva kokuba umboshwa eqeda ukuhlasela okuqondile kwegagasi lombani, noma lapho umbophi engakuqedi ngokuphelele igagasi lombani;
3. Isibambisi se-Arrester sisetshenziselwa ukuvikela izinto zikagesi, kuyilapho isivikeli sokuhlinza sisetshenziswa kakhulu ukuvikela amathuluzi kagesi noma amamitha;
4. Ngenxa yokuthi isibambisi sixhunywe ohlelweni oluyisisekelo lukagesi, kufanele sibe nokusebenza okwanele kokufakwa kwangaphandle, futhi usayizi wokubukeka mkhulu kakhulu.Ngenxa yokuthi isivikeli sokuhlinzwa sixhunywe ku-voltage ephansi, usayizi ungaba mncane kakhulu.
Idivayisi yokuvikela ekhuphukayo 1. Ikhabhinethi yokulawula ukuguqulwa kwemvamisa kumele yengezwe;2. Ikhabhinethi yokulawula usebenzisa i-vacuum circuit breaker kumele yengezwe;3. Iswishi engenayo yesistimu yokuphakelwa kwamandla kumele yengezwe
4. Amanye amakhabethe okulawula angeke engezwe.Yiqiniso, uma kukhona indawo yesabelomali sokuphepha, zingangezwa
Imishini yokuvikela i-surge ngokuvamile ihlukaniswe yaba izinhlobo ezimbili: uhlobo lokuvikela imoto kanye nohlobo lokuvikela isiteshi samandla!
Idivayisi yokuvikela i-by series surge isebenzisa i-varistor enezici ezinhle kakhulu ezingaqondile.Ngaphansi kwezimo ezijwayelekile, idivayisi yokuvikela ekukhuphukeni isesimweni sokumelana okuphezulu kakhulu, futhi amandla avuzayo acishe abe ziro, ukuze kuqinisekiswe ukuhlinzekwa kwamandla okujwayelekile kwesibambi sesistimu yamandla.Lapho i-overvoltage yenzeka ohlelweni lokunikezwa kwamandla, umhlobiso wensimbi engagqwali kanye nomvikeli ohlinzayo uzoqhuba ngokushesha kuma-nanoseconds ukuze akhawulele i-amplitude ye-overvoltage ngaphakathi kwebanga lokusebenza eliphephile lemishini.Ngesikhathi esifanayo, amandla we-overvoltage akhululwa.Kamuva, umvikeli ngokushesha uba yisimo sokumelana okuphezulu, ngakho-ke akuthinti ukunikezwa kwamandla okujwayelekile kwesistimu yamandla.
Idivayisi yokuvikela i-Surge (SPD) iyithuluzi elibalulekile ekuvikelweni kombani kwezinto zikagesi.Yayivame ukubizwa ngokuthi "surge arrester" noma "overvoltage protector", esifushanisiwe njenge-SPD ngesiNgisi.Umsebenzi wedivayisi yokuvikela ukukhuphuka ukukhawulela ukugcwala okudlulayo kwesikhashana entanjeni yamandla kanye nolayini wokudlulisa isignali ngaphakathi kwebanga lamandla kagesi angakwazi ukuthwala impahla noma uhlelo, noma ukukhiphela umbani onamandla emhlabathini, ukuze kuvikelwe amathuluzi noma uhlelo oluvikelekile. ekonakalisweni umthelela.
Izinhlobo nezakhiwo zamadivayisi okuvikela akhuphukayo ahlukile ngokuya ngezinhlelo ezihlukene, kodwa kufanele aqukathe okungenani into eyodwa engaqondile yomkhawulo kagesi.Izingxenye eziyisisekelo ezisetshenziswa ku-SPD zifaka igebe lokuphuma, ishubhu yokukhipha igesi egcwele igesi, i-varistor, i-diode yokucindezela kanye nekhoyili yokuminyanisa.
Isikhathi sokuthumela: Jul-08-2021