Kufambira mberi, tichitarisa izvi, unogona kufunga nezvekufambira mberi kwekuwana zvitupa zvehunyanzvi, zvakaita seCET-4 neCET-6. Mumota, mota inewo matanho. Nhevedzano iyi hairevi kukwirira kwemota, asi kumhanya kwemota. Ngatitorei mota yedanho rechina semuenzaniso kuti tione zvinorehwa nemota.
Mota yeLevel 4 inoreva kumhanya kwemota kweminiti imwe chete = {frequency of power supply (50Hz) × 60 seconds} ÷ (mota matanho ÷ 2) = 3000 ÷ 2 = 1500 revolutions. Mufekitori, tinowanzonzwa kuti mota ine matanho akati wandei. Kuti tinzwisise, tinofanira kutanga taziva pfungwa yepole: pole inoreva magnetic pole yakagadzirwa nejenareta rotor mushure mekunge excitation current yaiswa parotor coil. Muchidimbu, zvinoreva kuti kutenderera kwega kwega kwerotor kunogona kukonzera ma circuits akawanda e current mukutenderera kumwe kwe stator coil. Zvakakosha kugadzira 50Hz potential kana nhamba yemapango yakasiyana. Kumhanya kwakasiyana kunodiwa. 50Hz, 60 seconds nemaminitsi (kureva 3000) yakakamurwa nenhamba yemapango ndiyo nhamba ye revolutions yemota paminiti. Izvi ndizvo zvinoitikawo kune mota, inova nzira inoshanduka yejenareta.
Huwandu hwematanda hunoratidza kumhanya kwemota. Kumhanya kwematanho maviri i3000rmin, kumhanya kwematanho mana i1500rmin, kumhanya kwematanho matanhatu i1000rmin, uye kumhanya kwematanho masere i750rmin. Zvinogona kunzwisiswa kuti matanda maviri ndiwo nhamba yekutanga (3000), matanda mana anogona kungokamurwa kuita 2, matanda matanhatu anogona kukamurwa kuita 3, uye matanda masere anogona kukamurwa kuita 4. Panzvimbo pematanda maviri, 3000 inofanira kushandiswa kubvisa 2. Nhamba yematanda emota yakawanda, kumhanya kwemota kunoderedza, asi torque yayo yakakura; pakusarudza mota, unofanirwa kufunga nezve torque yekutanga inodiwa nemutoro. Semuenzaniso, torque inodiwa pakutanga nemutoro yakakura kupfuura yekutanga pasina mutoro. Kana iri yekutanga ine simba guru uye mutoro unorema, Kutanga-kudzika (kana star delta start) kunofanirawo kufungwa nezvayo; Kana iri nyaya yekumhanya nekuremerwa kwemutoro mushure mekuona huwandu hwemapango emota, inogona kufungidzirwa kutyaira nebhandi pulley yedhayamita yakasiyana kana negiya rinoshanduka-shanduka (Gearbox). Kana simba rinodiwa pamutoro risingakwanise kuzadzikiswa mushure mekuona huwandu hwemapango emota kuburikidza nebhandi kana giya rekufambisa, simba rekushandisa remota rinofanira kufungwa nezvaro.
Mota yeAC ine zvikamu zvitatu inonyanya kuumbwa ne stator ne rotor. Kana AC ine zvikamu zvitatu yakabatana ne stator, simba remagineti rinotenderera rinogadzirwa. Simba remagineti rinogara riine matanda maviri (anogonawo kunzi anoonekwa ari maviri), anoti N pole (North Pole) ne S pole (south pole), inozivikanwawo se counter pole. Kana nzira yekutenderedza yeAC motor stator winding yakasiyana, huwandu hwematanda emagineti e rotating field hwakasiyana. Huwandu hwematanda emagineti hunokanganisa zvakananga kumhanya kwemota, uye hukama hwawo ndehwekuti: synchronous speed = 60 × Frequency level logarithm. Kana kumhanya kwemota kuri 1500 rpm, zvinogona kuverengerwa kuti pole logarithm i2, kureva kuti, mota ine matanda mana zvichienderana nefomula iri pamusoro. Kumhanya kwesynchronous ne pole logarithm ndiwo ma parameter ekutanga emota, ayo anogona kuwanikwa pa nameplate yemota. Nekuti pole logarithm inogona kukanganisa kumhanya kwemota, kumhanya kwemota kunogona kuchinjwa nekushandura pole logarithm yemota.
Kune zvinhu zvinoyerera zvakaita semafeni nemapombi, rudzi urwu rwemutoro rune chinhu chakakosha. Sezvinotaurwa, runonzi resisting mutation, zvinoreva kuti rudzi urwu rwemutoro rune simba guru rekuchinja kwemamiriro ezvinhu aripo. Kunyangwe simba rinodiwa kukurudzira shanduko yemhando iyi yemutoro risina kukwira, rinoda simba rakawanda kuti richinje mamiriro aripo nekukurumidza. Zvakafanana nemvura iri kufashaira. Moto mudiki unogonawo kufashaira, uye unofanira kufashaira. Uchafashaira munguva pfupi, uye moto ungangodiwa uchava mukuru kwazvo.
Idzi ndidzo tsananguro chaiyo yemota dzakatevedzana. Kune frequency yakatarwa uye starting current, hapana hukama husingadzivisike pakati padzo. Starting current inoenderana nekugadzirwa kwe starting VF curve uye nguva yekumhanyisa. Pamutoro wemvura, kushandisa multiple power curve kunogona kuita kuti michina ishande zvakanyanya kuchengetedza simba uye kuwana mabhenefiti akawanda ehupfumi.
Nguva yekutumira: Mbudzi-08-2021
