Ijubane lama-turbine amanzi liphansi kakhulu, ikakhulukazi i-turbine yamanzi eqondile. Ukuze kukhiqizwe i-50Hz AC, i-generator ye-turbine yamanzi isebenzisa isakhiwo sezingodo zamagnetic ezinama-multi pair. Ku-generator ye-turbine yamanzi enezinguquko ezingu-120 ngomzuzu, kudingeka izingodo zamagnetic ezingu-25. Ngenxa yokuthi kunzima ukubona isakhiwo sezingodo zamagnetic eziningi kakhulu, le courseware yethula imodeli ye-hydraulic turbine generator enama-pair angu-12 ezingodo zamagnetic.
I-rotor ye-hydro generator isebenzisa isakhiwo se-pole esibonakalayo. Isithombe 1 sibonisa i-magnetic joke kanye ne-magnetic pole ye-generator. I-magnetic pole ifakwe ku-magnetic joke, okuyindlela yomugqa we-magnetic field we-magnetic pole. Imodeli ye-generator inezingodo ezingu-24 ze-magnetic phakathi kweNyakatho neNingizimu, futhi i-magnetic pole ngayinye iboshwe nge-excitation coil. Amandla okuvuselela anikezwa yi-excitation generator efakwe ekugcineni kwe-shaft eyinhloko noma uhlelo lwe-excitation lwe-thyristor lwangaphandle (indandatho yokuqoqa inikeza amandla ku-excitation coil).
Ijoka likamazibuthe lifakwe esisekelweni se-rotor, ishafti eyinhloko yejeneretha ifakiwe maphakathi nesisekeli se-rotor, kanti ijeneretha yokuvuselela noma indandatho yokuqoqa ifakiwe ekugcineni okuphezulu kwesixhathi esiyinhloko.
I-generator stator core yenziwe ngamashidi ensimbi e-silicon anomoya omuhle wamagnetic, futhi izikhala eziningi zisatshalaliswa ngokulinganayo embuthanweni wangaphakathi we-core ukuze kufakwe ikhoyili ye-stator.
Ikhoyili ye-stator ifakwa endaweni ye-stator ukuze yakhe ukugoqa kwezigaba ezintathu. Ukugoqa kwesigaba ngasinye kwakhiwe ngamakhoyili amaningi futhi kuhlelwe ngokomthetho othile.
Ijenereyitha yamanzi ifakwe epanini le-turbine elithululwayo, kanti ipanini le-turbine lifakwe nesisekelo se-turbine. Isisekelo se-turbine siyisisekelo sokufakwa kwe-stator core kanye negobolondo lejenereyitha yamanzi. Idivayisi yokusabalalisa ukushisa ifakwe epanini lesisekelo se-turbine ukunciphisa izinga lokushisa lomoya opholile wejenereyitha; Uhlaka olungezansi lufakwe naso epanini. Uhlaka olungezansi lufakwe i-thrust bearing, esetshenziselwa ukufaka i-generator rotor. I-thrust bearing ingathwala isisindo, ukudlidliza, umthelela kanye namanye amandla e-rotor.
I-stator core kanye ne-stator coil kufakwe esisekelweni. I-rotor ifakwa phakathi kwe-stator futhi inesikhala esincane ne-stator. I-rotor isekelwa yi-thrust bearing yohlaka olungezansi futhi ingajikeleza ngokukhululeka. Uhlaka olungaphezulu lufakiwe, futhi i-guide bearing ifakiwe maphakathi nohlaka olungaphezulu ukuvimbela i-main shaft yejenereyitha ukuthi inganyakaziswa futhi iyigcine isendaweni ephakathi izinzile. Ngemva kokubeka phansi ipulatifomu ephezulu nokufaka idivayisi yebhulashi noma i-excitation motor, kufakwa imodeli ye-hydro generator.
Amandla e-electromotive e-AC anezigaba ezintathu emijikelezweni eyi-12 azobangelwa ukujikeleza kwe-rotor eyimodeli yejeneretha yamanzi. Uma ijubane le-rotor lingu-250 revolutions ngomzuzu, imvamisa ye-AC ekhiqizwayo ingu-50 Hz.
Isikhathi sokuthunyelwe: Ephreli-14-2022
