1.Iinqaba zothumelongamaqondo ombane we-110kV nangaphezulu
Kulo luhlu lwe-voltage, imigca emininzi iquka abaqhubi aba-5. Abaqhubi ababini abaphezulu babizwa ngokuba ziingcingo ezikhuselweyo, ezaziwa ngokuba ziingcingo zokhuseleko lombane. Umsebenzi ophambili wezi ngcingo zimbini kukuthintela umqhubi ukuba angabethwa ngokuthe ngqo ngumbane.
Abaqhubi abathathu abasezantsi bakwisigaba A, B, kunye no-C, ababizwa ngokuqhelekileyo njengamandla amanqanaba amathathu. Ukulungelelaniswa kwaba baqhubi bezigaba ezintathu kunokwahluka ngokuxhomekeke kuhlobo lwenqaba. Kulungiselelo oluthe tye, abaqhubi besigaba esithathu bakwinqwelomoya ethe tye. Kwimizila yesekethe enye, kukho kwakhona ulungelelwaniso oluthe tye kwimo yeleta "H". Kwimizila ye-double-circuit okanye ye-multi-circuit, ilungiselelo elithe nkqo liyamkelwa ngokuqhelekileyo. Kubalulekile ukuqaphela ukuba imigca embalwa ye-110kV inocingo olulodwa kuphela olukhuselekileyo, olukhokelela kwiikhondukta ezi-4: ucingo olu-1 olukhuselekileyo kunye neekhondukta zesigaba ezi-3.
I-2.35kV-66kV inqaba yokuhambisa inqanaba lombane
Uninzi lwemigca engaphezulu kolu luhlu lubandakanya ii-conductors ezi-4, apho enye ephezulu isakhuselwe kwaye isithathu esisezantsi ngabaqhubi besigaba.
3.10kV-20kV inqaba yothungelwano lombane kwinqanaba lombane
Uninzi lwemigca engaphezulu kolu luhlu lubandakanya abaqhubi aba-3, bonke abaqhubi besigaba, akukho khuselo. Oku kubhekiselele ngokukodwa kwiintambo zothumelo lwesekethe enye. Okwangoku, iintambo ze-10kV kwiindawo ezininzi ziziintambo zothumelo lwe-multi-circuit. Ngokomzekelo, umgca we-double-circuit uqukethe abaqhubi aba-6, kwaye umgca wesekethe ezine uqukethe abaqhubi abayi-12.
4.I-Low-voltage overhead transmission tower (220V, 380V)
Ukuba ubona umgca ophezulu kunye nabaqhubi ababini kuphela kwipali yekhonkrithi ephantsi kunye nomgama omfutshane phakathi kwabo, oku kudla ngokuba ngumgca we-220V. Le migca inqabile kwiindawo zasezidolophini kodwa isengabonakala kwiindawo ezisemaphandleni. Abaqhubi ababini baquka umqhubi wesigaba kunye nomqhubi ongathathi hlangothi, oko kukuthi abaqhubi abaphilayo nabangathathi hlangothi. Olunye ulungelelwaniso yi-4-conductor setup, eyilayini ye-380V. Oku kubandakanya iingcingo ezi-3 eziphilayo kunye nocingo olu-1 olungathathi hlangothi.
Ixesha lokuposa: Aug-01-2024
