Khatelo-pele, ha u bua ka sena, u ka nahana ka tsoelo-pele ea ho fumana mangolo a litsebi, joalo ka CET-4 le CET-6. Ka koloing, enjene e boetse e na le mekhahlelo. Letoto mona ha le bue ka bophahamo ba enjene, empa ho lebelo la synchronous la enjene. Ha re nke mohato oa 4 e le mohlala ho bona moelelo o tobileng oa letoto la likoloi.
Lebelo la 4 la motlakase le bolela lebelo la synchronous la metsotso e 1 ea motlakase = {khafetsa ea phepelo ea matla (50Hz) × metsotsoana e 60} ÷ (mehato ea likoloi ÷ 2) = 3000 ÷ 2 = 1500 revolutions. Fekthering, hangata re utloa hore enjene e na le mekhahlelo e mengata. E le hore re utloisise, re tlameha ho qala ho tseba khopolo ea palo: pole e bua ka palo ea khoheli e entsoeng ke rotor ea jenereithara ka mor'a hore motlakase o hlasimollang o sebelisoe ho rotor coil. Ka bokhutšoanyane, ho bolela hore phetoho e 'ngoe le e' ngoe ea rotor e ka etsa hore ho be le mekhoa e mengata ea hona joale ka nako e le 'ngoe ea coil ea stator. Hoa hlokahala ho hlahisa bokhoni ba 50Hz haeba palo ea lipalo e fapane Ho hlokahala lebelo le fapaneng. 50Hz, metsotsoana e 60 le metsotso (ke hore 3000) e arotsoe ka palo ea lipalo ke palo ea liphetoho tsa motlakase ka motsotso. Ho joalo le ka enjene, e leng ts'ebetso e fapaneng ea jenereithara.
Palo ea lipalo e bontša lebelo le lumellanang la enjene. Lebelo la 2-pole synchronous ke 3000rmin, lebelo la 4-pole synchronous ke 1500rmin, lebelo la 6-pole synchronous ke 1000rmin, le lebelo la 8-pole synchronous ke 750rmin. Ho ka utloisisoa hore 2-pole ke palo ea motheo (3000), lipalo tse 4 li ka aroloa feela ka 2, lipalo tse 6 li ka aroloa ka 3, 'me lipalo tse 8 li ka aroloa ka 4. Ho e-na le lipalo tse 2, 3000 e lokela ho sebelisoa ho tlosa 2. Ha palo ea lipalo tsa motlakase e ntse e eketseha, e fokotsa lebelo le leholo la motlakase; ha u khetha enjene, u lokela ho nahana ka torque e qalang e hlokoang ke mojaro. Mohlala, torque e hlokahalang bakeng sa ho qala ka mojaro e kholo ho feta ea ho se qale ho jara. Haeba e le matla a phahameng le mojaro o boima o qala, Ho qala ho theoha (kapa ho qala ha delta ea linaleli) le hona ho tla nahanoa; mabapi le lebelo le tsamaisanang le mojaro ka mor'a ho tseba palo ea lipalo tsa enjene, e ka nkuoa e le ho khanna ka lebanta la bophara bo fapaneng kapa ka gear e fapaneng ea lebelo (Gearbox) Haeba litlhoko tsa matla tsa mojaro li ke ke tsa fihlelleha kamora ho fumana palo ea lipalo tsa enjene ka lebanta kapa phetisetso ea gear, matla a ts'ebeliso ea enjene a tlameha ho nahanoa.
Karolo e meraro ea motlakase ea AC e entsoe haholo ka stator le rotor. Ha mekhahlelo e meraro ea AC e hokahane le stator, ho tla hlahisoa matla a khoheli a potolohang. Matla a makenete a lula a na le lipalo tse peli (hape ho ka boleloa hore li hlaha ka bobeli), e leng N pole (North Pole) le S pole (south pole) , e tsejoang hape e le palo ea counter. Ha mokhoa o tsoelipanang oa AC motor stator winding o fapane, palo ea lipalo tsa makenete tsa matla a khoheli a potolohang a fapane. Palo ea lipalo tsa makenete e ama lebelo la motlakase ka kotloloho, 'me kamano ea bona ke: lebelo la synchronous = 60 × Frequency level logarithm. Haeba lebelo la synchronous la motor ke 1500 rpm, ho ka baloa hore palo ea logarithm ke 2, ke hore, koloi ea 4-pole ho latela foromo e ka holimo. Lebelo la synchronous le pole logarithm ke litekanyo tsa mantlha tsa enjene, tse ka fumanoang letlapeng la lebitso la enjene. Hobane pole logarithm e ka ama lebelo la enjene, lebelo la enjene le ka fetoloa ka ho fetola palo ea logarithm ea enjene.
Bakeng sa meroalo ea mokelikeli e kang li-fan le lipompo, mofuta ona oa mojaro o na le tšobotsi e hlahelletseng. Joalokaha polelo e bolela, e bitsoa ho hanyetsa phetoho, ho bolelang hore mofuta ona oa mojaro o na le khanyetso e kholo ea phetoho ea boemo ba hona joale. Le hoja torque e hlokahalang ho khothalletsa phetoho ea mofuta ona oa mojaro ha e phahame, e hloka matla a mangata ho fetola boemo ba hona joale kapele. E batla e tšoana le metsi a belang. Mollo o monyenyane o ka boela oa pheha, 'me o lokela ho bela haufinyane,' me mollo o ka 'nang oa hlokahala o tla ba moholo haholo.
Tsena ke litlhaloso tse ikhethang tsa letoto la likoloi. Bakeng sa maqhubu a fanoeng le ho qala hona joale, ha ho na kamano e ke keng ea qojoa pakeng tsa bona. Nako ea ho qala ha e le hantle e ipapisitse le tlhophiso ea ho qala VF curve le bolelele ba nako ea ho potlakisa. Bakeng sa phallo ea mokelikeli, ho sebelisa li-curve tse ngata tsa motlakase ho ka etsa hore sesebelisoa se boloke matla le ho fumana melemo e mengata ea moruo.
Nako ea poso: Nov-08-2021
