Umsebenzi kunye nokusebenza kwamandla ombane aphezulu iseti epheleleyo yezixhobo

Isixhobo esipheleleyo sombane ophezulu (ikhabhinethi yokusasazwa kwamandla ombane aphezulu) ibhekisa kwisixhobo sokutshintsha se-AC sangaphakathi nangaphandle esisebenza kwiinkqubo zamandla ezinombane we-3kV nangaphezulu kunye nee-frequencies ze-50Hz nangaphantsi.Isetyenziselwa ikakhulu ukulawula kunye nokukhuselwa kweenkqubo zamandla (kubandakanywa nezityalo zamandla, izitishi, imigca yokuhambisa kunye nokusabalalisa, amashishini amashishini kunye nemigodi, njl. njl.) Xa umgca ungaphumeleli, inxalenye ephosakeleyo isuswa ngokukhawuleza kwigridi yamandla, ukwenzela ukuba kuqinisekiswe. ukusebenza okuqhelekileyo kwecandelo elingenasiphako legridi yamandla kunye nokhuseleko lwezixhobo kunye nokusebenza kunye nabasebenzi bokugcina.Ngoko ke, izixhobo ezipheleleyo zombane zibaluleke kakhulu ukuhanjiswa kwamandla kunye nezixhobo zokuhambisa amandla, kwaye ukusebenza kwayo okukhuselekileyo nokuthembekileyo kubaluleke kakhulu ekusebenzeni okukhuselekileyo nokusebenzayo kwenkqubo yamandla.

Iiseti ezipheleleyo ze-high-voltage zinokwahlulwa zibe:
(1) Amacandelo kunye nendibaniselwano yazo: kubandakanywa izaphuli zesekethe, izitshixo zokwahlula, izitshixo ze-earthing, ii-reclosers, i-circuit breakers, i-switch switching, i-contactors, i-fuses kunye nala macandelo angasentla Udibaniso oludityanisiweyo lwe-switch switch-fuse indibaniselwano, i-contactor-fuse (FC) indibaniselwano, ukwahlula umthwalo. tshintsha, tshintsha ifuse, indibaniselwano evulekileyo, njl.
(2) Gqibezela iiseti zezixhobo: ukudibanisa la macandelo angasentla kunye nokudityaniswa kwawo kunye nezinye iimveliso zombane (ezifana ne-transformer, i-transformer yangoku, i-voltage transformers, i-capacitor, i-reactors, i-banjwa, imivalo yebhasi, i-inlet kunye ne-outlet bushings, iitheminali zeentambo kunye namacandelo esibini; njl.) Ulungelelwaniso olunengqiqo, oludityanisiweyo ngokwendalo kwiqokobhe lesinyithi elivaliweyo, kunye nemveliso enemisebenzi yokusetyenziswa ngokupheleleyo.Okufana nentsimbi efakwe kwi-switchgear (i-switchgear), i-gas-insulated metal-enclosed switchgear (GIS), kunye ne-high-voltage / low-voltage prefabricated substations.