Kufambira mberi, zvichireva izvi, unogona kufunga nezvekufambira mberi kwekutora zvitupa zvehunyanzvi, seCET-4 uye CET-6. Mumota, mota inewo matanho. Iwo akatevedzana pano haarevi kureba kwemota, asi kune inofananidzwa kumhanya kwemota. Ngatitorei nhanho 4 mota semuenzaniso kuti tione chirevo chemota dzakatevedzana.
Level 4 motokari inoreva 1-miniti synchronous speed yemota = {frequency of power supply (50Hz) × 60 seconds} ÷ (motor stages ÷ 2) =3000 ÷ 2 = 1500 revolutions. Mufekitari, tinowanzonzwa kuti mota ndeyematanho akati wandei. Kuti tinzwisise, isu tinofanira kutanga taziva pfungwa yedanda: danda rinoreva danda remagineti rakaumbwa nejenareta rotor mushure meiyo excitation ikozvino inoshandiswa kune rotor coil. Muchidimbu, zvinoreva kuti shanduko yega yega ye rotor inogona kupinza akati wandei kutenderera kweazvino mune imwe kutendeuka kwe stator coil. Izvo zvinodikanwa kugadzira 50Hz inogona kana huwandu hwemapango hwakasiyana Kumhanya kwakasiyana kunodiwa. 50Hz, 60 seconds nemaminetsi (kureva 3000) yakakamurwa nehuwandu hwemapango ndiyo nhamba yematenderedzwa emotor paminiti. Izvi zvakafanana kune mota, inongori inverse process yejenareta.
Huwandu hwemapango hunoratidza kumhanyisa kwemotikari. Iyo 2-pole synchronous kumhanya i3000rmin, iyo 4-pole synchronous kumhanya i1500rmin, iyo 6-pole synchronous kumhanya i1000rmin, uye 8-pole synchronous kumhanya i750rmin. Zvinogona kunzwisiswa kuti 2-pole ndiyo nhamba yepasi (3000), 4 matanda anogona chete kukamurwa kuva 2, 6 matanda anogona kupatsanurwa kuita 3, uye 8 matanda anogona kukamurwa kuita 4. Panzvimbo pematanda maviri, 3000 inofanira kushandiswa kubvisa 2. Iyo yakawanda nhamba yemapuranga emota, iyo inoderedza iyo yakakura kumhanya kwemota, asi iyo yakakura kumhanya kwemota; pakusarudza mota, iwe unofanirwa kufunga nezve yekutanga torque inodiwa nemutoro. Semuenzaniso, torque inodiwa kutanga nemutoro yakakura kupfuura iyo yekusatakura-mutoro kutanga. Kana iri yepamusoro-simba uye inorema mutoro kutanga, Iyo nhanho-pasi kutanga (kana nyeredzi delta kutanga) ichatariswa zvakare; kana iri yekumhanya inoenderana nemutoro mushure mekuona huwandu hwemapango emota, inogona kutariswa kutyaira ine bhandi pulley yedhayamita yakasiyana kana neyakasiyana-siyana yekumhanyisa giya (Gearbox) Kana izvo zvinodikanwa zvesimba remutoro zvisingagone kuzadzikiswa mushure mekuona huwandu hwemapango emota kuburikidza nebhandi kana giya kufambisa, simba rekushandisa remota rinofanira kutariswa.
Zvitatu chikamu AC mota inonyanya kuumbwa ne stator uye rotor. Kana matatu-phase AC yakabatana kune stator, inotenderera magineti inogadzirwa. Magnetic field inogara iine mapango maviri (anogonawo kunzi anoonekwa ari maviri maviri), anoti N pole (North Pole) neS pole (south pole) , inozivikanwawo sea counter pole. Kana iyo inotenderedza modhi ye AC mota stator mhepo yakasiyana, huwandu hwemagineti mapango eiyo inotenderera yemagineti inosiyana. Nhamba yemagineti mapango inobata zvakananga kumhanya kwemota, uye hukama hwavo ndehwe: synchronous speed = 60 × Frequency level logarithm. Kana iyo synchronous kumhanya yemota iri 1500 rpm, inogona kuverengerwa kuti pole logarithm ndeye 2, kureva, 4-pole mota zvinoenderana neformula iri pamusoro. Synchronous kumhanya uye pole logarithm ndiwo akakosha maparamita emota, anogona kuwanikwa pane nameplate emota. Nekuti pole logarithm inogona kukanganisa kumhanya kwemota, kumhanya kwemota kunogona kuchinjwa nekuchinja pole logarithm yemota.
Kune mitoro yemvura yakadai semafeni nemapombi, rudzi urwu rwemutoro rune chinhu chakatanhamara. Sezvo chirevo chichienda, chinodaidzwa kuti kuramba mutation, izvo zvinoreva kuti rudzi urwu rwemutoro rune kupokana kukuru kune shanduko yemamiriro ezvinhu aripo. Kunyangwe torque inodiwa kusimudzira shanduko yerudzi urwu rwemutoro haina kukwirira, inoda simba rakawanda kushandura mamiriro aripo nekukurumidza. Zvakaita semvura iri kufashaira. Moto muduku unogonawo kubika, uye inofanira kunge Ichafashaira nokukurumidza, uye moto unogona kudiwa uchava mukuru kwazvo.
Aya ndiwo tsananguro dzakananga dzemota dzakatevedzana. Kune yakapihwa frequency uye yekutanga ikozvino, hapana hukama husingadzivisike pakati pavo. Iko kutanga ikozvino kunoenderana nekumisikidzwa kwekutanga VF curve uye nehurefu hwenguva yekumhanyisa. Zvekuremerwa kwemvura, kushandisa akawanda magetsi curve kunogona kuita kuti michina ishande yakawanda-yekuchengetedza simba uye kuwana mamwe mabhenefiti ehupfumi.
Nguva yekutumira: Nov-08-2021
