Kudzivirirwa kwemheni ye substation Nokuda kwekudzivirira kwemheni yemutsara, chete chikamu chekudzivirira mheni chinodiwa, kureva, maererano nekukosha kwemutsara, chete imwe nhanho yekudzivirira mheni inodiwa. Uye kune chirimwa chemagetsi, substation yaida kupikisa mheni yakakwana. Njodzi dzemheni mumagetsi emagetsi uye zviteshi zvishoma zvinobva mumativi maviri: mheni inorova zvakananga pamagetsi emagetsi uye zviteshi zvishoma; Kurova kwemheni pamitsara yekufambiswa kwemagetsi kunogadzira masaisai emheni anopinda mumagetsi emagetsi nezviteshi zvishoma munzira. Kuti udzivirire substation kubva pakurova kwemheni yakananga, unofanirwa kuisa matanda emheni, mheni, uye mambure akaiswa pasi zvakanaka. Kuiswa kwemheni matanda (waya) kunofanirwa kuita zvese zvishandiso uye zvivakwa mu substation mukati mekudzivirira; Panofanirawo kuva nenzvimbo yakakwana pakati pechinhu chinodzivirira uye tsvimbo yemheni (waya) mumhepo uye pasi pevhu yekumisa mudziyo kudzivirira counterattack (reverse flashover). Kuiswa kwesimbi yemheni kunogona kukamurwa kuita yakazvimirira mheni tsvimbo uye yakarongedzwa mheni tsvimbo. Iyo simba frequency yekumisa kuramba kweiyo yakamira mheni tsvimbo haifanirwe kunge yakakura kupfuura gumi ohms. Iyo insulation yemagetsi ekugovera zvikamu kusvika uye kusanganisira 35kV haina kusimba. Nokudaro, hazvina kukodzera kuisa tsvimbo yemheni yakagadzirwa, asi tsvimbo yemheni yakazvimirira. Nharaunda yemagetsi pakati penzvimbo yekubatanidza yepasi pesimbi yemheni uye huru yepasi network uye nzvimbo yepasi yeshanduko huru inofanira kunge yakakura kupfuura 15m. Kuti uve nechokwadi chekuchengetedzwa kwemushanduri mukuru, mheni inosunga haibvumirwi kuiswa pamusuo wegonhi rekushandura.

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Nguva yekutumira: Dec-05-2022