Seti yejenareta inowanzo kuve neinjini, jenareta, sisitimu yekudzora yakazara, sisitimu yedunhu remafuta, uye sisitimu yekugovera simba. Chikamu chesimba chejenareta chiri musystem yekutaurirana - injini yedhiziri kana injini yeturbine yegesi - chakafanana kune mayuniti ane kumanikidzwa kwakanyanya uye ane kumanikidzwa kwakaderera; Magadzirirwo uye huwandu hwemafuta esystem yemafuta zvinonyanya kuenderana nesimba, saka hapana mutsauko wakakura pakati pemayuniti ane kumanikidzwa kwakakwira uye kwakaderera, saka hapana mutsauko muzvinodiwa zvemasystem ekupinda kwemhepo uye ekubuda kwemhepo emayuniti anopa kutonhora. Musiyano mumatanho uye mashandiro pakati pemaseti ejenareta ane voltage yakakwira uye maseti ejenareta ane voltage yakaderera anonyanya kuratidzwa muchikamu chejenareta nechikamu chesystem yekugovera.
1. Musiyano muhukuru nehuremu
Majenareta ane voltage yakawanda anoshandisa majenareta ane voltage yakawanda, uye kuwedzera kwehuwandu hwevoltage kunoita kuti zvinodiwa zvavo zvekudzivirira zvikwire. Saizvozvo, vhoriyamu nehuremu hwechikamu chejenareta zvakakura kupfuura zvemayuniti ane voltage shoma. Nokudaro, vhoriyamu yemuviri wese nehuremu hweseti yejenareta ye10kV zvakakura zvishoma pane zveyuniti ine voltage shoma. Hapana musiyano wakakosha pakuonekwa kunze kwechikamu chejenareta.
2. Kusiyana kwenzira dzekuisa pasi
Nzira dzekuisa pasi neutral dzemaseti maviri ejenareta dzakasiyana. Kutenderedza unit ye380V kwakabatana nenyeredzi. Kazhinji, system ine voltage shoma isystem yekuisa pasi neutral point direct, saka point neutral yakabatana nenyeredzi yejenareta yakagadzirirwa kubviswa uye inogona kuiswa pasi zvakananga kana zvichidikanwa. Sisitimu ye10kV isystem diki yekuisa pasi, uye point neutral kazhinji haina kuiswa pasi kana pasi kuburikidza nekudzivirira pasi. Saka, zvichienzaniswa nemayuniti ane voltage shoma, mayuniti e10kV anoda kuwedzerwa michina yekugovera nzvimbo neutral senge makabati ekudzivirira uye makabati ekubata.
3. Kusiyana kwenzira dzekudzivirira
Majenareta ane voltage yakawanda anowanzoda kuiswa kwedziviriro yekupwanya nekukurumidza, dziviriro yekuwedzeredza, dziviriro yekudzika, nezvimwewo. Kana kunzwisiswa kwedziviriro yekupwanya nekukurumidza kukasasangana nezvinodiwa, dziviriro yekusiyanisa kwenguva refu inogona kuiswa.
Kana paine dambudziko rekudzika pasi panoshanda jenareta rine simba guru, rinokonzera njodzi huru kuvashandi nemidziyo, saka zvakakosha kuti pave nedziviriro yekudzika pasi.
Nzvimbo isina kusimba yejenareta inotsikwa kuburikidza ne resistor. Kana paine grounding fault yechikamu chimwe chete, fault current inoyerera nepa neutral point inogona kuonekwa, uye dziviriro yekugumburwa kana kuvharwa inogona kuwanikwa kuburikidza ne relay protection. Nzvimbo isina kusimba yejenareta inotsikwa kuburikidza ne resistor, iyo inogona kudzikamisa fault current mukati me committed damage current yejenareta, uye jenareta inogona kushanda ne malfaults. Kuburikidza ne grounding resistance, ground faults dzinogona kuonekwa zvinobudirira uye zviito zve relay protection zvinogona kufambiswa. Zvichienzaniswa ne low-voltage units, high-voltage generator sets dzinoda kuwedzerwa kwe neutral point distribution equipment dzakadai se resistance cabinet nema contactor cabinet.
Kana zvichidikanwa, dziviriro yakasiyana inofanira kuiswa kumaseti ejenareta ane voltage yakawanda.
Dziviriro yemagetsi ine zvikamu zvitatu pa stator winding yejenareta. Nekuisa ma transformer emagetsi pa terminals mbiri dzinobuda dze coil yega yega mujenareta, musiyano wemagetsi uripo pakati pe terminals dzinopinda nedzinobuda dze coil unoyerwa kuti uone mamiriro ekudzivirira e coil. Kana short circuit kana grounding zvikaitika muzvikamu zviviri kana zvitatu, fault current inogona kuonekwa mu transformers dzese, nokudaro ichityaira dziviriro.
4. Musiyano mumatavi ekubuda
Pasi pehuwandu hwakafanana, dhayamita yetambo yekubuditsa yezvikamu zvemagetsi ane simba rakawanda idiki zvikuru pane yezvikamu zvemagetsi ane simba rakaderera, saka zvinodiwa zvekushandisa nzvimbo dzemigero yekubuditsa zvakaderera.
5. Kusiyana muMasisitimu Ekudzora Zvikamu
Sisitimu yekudzora mayuniti emayuniti ane voltage shoma inogona kubatanidzwa kune rumwe rutivi rwechikamu chejenareta pamuviri wemuchina, nepo mayuniti ane voltage yakawanda anowanzoda bhokisi rekudzora mayuniti rakazvimirira kuti rirongwe rakaparadzana neyuniti nekuda kwematambudziko ekupindira kwechiratidzo.
6. Kusiyana kwezvinodiwa pakugadzirisa
Zvinodiwa pakugadzirisa mayuniti emagetsi ane simba guru muzvinhu zvakasiyana-siyana zvakaita sesisitimu yemagetsi emafuta uye sisitimu yemhepo inopinda uye yekubuda mweya zvakaenzana neaya emayuniti ane simba shoma, asi kugoverwa kwesimba reyuniti iyi sisitimu ine simba guru, uye vashandi vekugadzirisa vanofanirwa kunge vaine mvumo dzekushanda dzine simba guru.
Nguva yekutumira: Chivabvu-09-2023
