Isantya sokujikeleza kwee-hydraulic turbines siphantsi kakhulu, ingakumbi kwii-hydraulic turbines ezithe nkqo. Ukuze kuveliswe i-alternating current ye-50Hz, i-hydraulic turbine generator isebenzisa isakhiwo seepali ezininzi zeepali zemagnethi. Kwi-hydraulic turbine generator ene-120 revolutions ngomzuzu, kufuneka iipali ezingama-25 zeepali zemagnethi. Ekubeni kunzima ukubona isakhiwo esineepali zemagnethi ezininzi, eli phepha lazisa imodeli ye-hydro-turbine generator eneepali ezili-12 zeepali zemagnethi.
Irotha ye-hydro-generator isebenzisa isakhiwo sepali esibonakalayo. Umfanekiso 1 ubonisa i-yoga kunye nepali yemagnethi yejenereyitha. Ipali yemagnethi ifakwe kwi-yoga yemagnethi. I-yoga yemagnethi yindlela yomgca we-magnetic field wepali yemagnethi. Ipali nganye ibotshelelwe nge-coil yokukhupha umoya, kwaye amandla okukhupha umoya anikezelwa yi-excitation generator efakwe ekupheleni kwe-shaft ephambili, okanye enikezelwa yinkqubo yokukhupha umoya yangaphandle ye-thyristor (enikezelwa yiringi yokuqokelela kwi-excitation coil).
Ijoko lifakwe kwi-rotor bracket, i-generator main shaft ifakwe embindini we-rotor bracket, kwaye i-excitation generator okanye i-collector ring ifakwe kwisiphelo esiphezulu se-main shaft.
I-stator iron core yejenereyitha yenziwe ngamashiti esinyithi e-silicon ane-magnetic conductivity elungileyo. Kukho iindawo ezininzi ezisasazwa ngokulinganayo kwisangqa sangaphakathi se-iron core, ezisetyenziselwa ukufaka ii-stator coils.
Iikhoyili ze-stator zifakwe kwiindawo zokugcina i-stator ukuze zenze ii-windings zesigaba esithathu, i-winding yesigaba ngasinye yenziwe ngeekhoyili ezininzi kwaye ihlelwe ngokwemigaqo ethile.
I-hydro-generator ifakwe kwi-pier yomatshini eyenziwe ngekhonkrithi, kwaye isiseko somatshini sifakwa kwi-pier yomatshini. Isiseko somatshini sisiseko sokufakelwa kwe-stator iron core kunye neqokobhe le-hydro-generator. Nciphisa ubushushu bomoya opholileyo wejenereyitha; isakhelo esisezantsi sikwafakwe kwi-pier, kwaye isakhelo esisezantsi sine-thrust bearing yokufaka i-generator rotor. I-thrust bearing inokumelana nobunzima be-rotor, ukungcangcazela, impembelelo kunye neminye imikhosi.
Faka isiseko sentsimbi ye-stator kunye ne-stator coil kwisakhelo, i-rotor ifakwe embindini we-stator, kwaye kukho umsantsa omncinci kwi-stator. I-rotor ixhaswa yi-thrust bearing yesakhelo esisezantsi kwaye ingajikeleza ngokukhululekileyo. Faka isakhelo esingaphezulu, kwaye embindini wesakhelo esingaphezulu ifakwe nge-. I-guide bearing ithintela i-shaft ephambili yejenereyitha ekushukumeni kwaye iyigcine izinzile kwindawo ephakathi. Beka umgangatho weqonga eliphezulu, faka isixhobo sebrashi okanye i-excitation motor, kwaye kufakwe imodeli ye-hydro-generator.
Ukujikeleza kube kanye kwerotor yemodeli ye-hydro-generator kuya kubangela imijikelo eli-12 yamandla e-AC electromotive force amanqanaba amathathu. Xa irotor ijikeleza nge-250 revolutions ngomzuzu, i-frequency ye-alternating current yi-50 Hz.
Ixesha lokuthumela: Matshi-28-2022
