Magalimoto okwera kwambiri
Nthawi zambiri amakhulupirira kuti injini yokhala ndi magetsi a 3KV ~ 10KV imatchedwa ainjini yamphamvu kwambiri. Ma motors a 6300V ndi 10000V amagwiritsidwa ntchito kwambiri. Mphamvu yamagalimoto ndi yofanana ndi mphamvu yamagetsi ndi yapano, kotero mphamvu yamagetsi otsika imakwera mpaka kufika pamlingo wina (monga 300KW/380V), zomwe zidavotera zizikhala zazikulu kwambiri, kutayika kwa mzere kudzakhala kokulirapo ndi kuwonjezeka kwamakono (I ^ 2 * r), malo ozungulira waya amayenera kukhala aakulu kwambiri, kotero mphamvu yololeka yonyamula chingwe imakhala yochepa, ndipo mtengo wake ndi wokwera kwambiri. Panthawi imeneyi, m'pofunika kuonjezera oveteredwa ntchito voteji kukwaniritsa mkulu mphamvu linanena bungwe.
Makina otsika-voltage
Low voltage motor amatanthauza AC voteji pansi pa 1000V mota, nthawi zambiri amatanthauza AC 380V mota, 440V kapena 660V ndi magawo enama asynchronous motorsamagwiritsidwa ntchito mochepa. Magalimoto otsika amagawidwa kukhala AC asynchronous mota ndi DC mota mitundu iwiri.
Ubwino ndi kuipa kwa ma motors okwera kwambiri poyerekeza ndi ma mota amagetsi otsika
(1) Ubwino
(1) zitha kupangidwa ku mphamvu yayikulu, mpaka masauzande kapena masauzande masauzande a kilowatts. Izi zili choncho chifukwa, mu mphamvu yomweyi, mphamvu yamagetsi yamagetsi yamagetsi imatha kukhala yaying'ono kwambiri kuposa yamagetsi otsika (makamaka mosagwirizana ndi voteji), mwachitsanzo, 500kW, 4-pole motor ovotera pano, mphamvu yamagetsi 380V kwa 900A kapena apo, pamene oveteredwa voteji 10kV yekha 30A kapena apo. Chifukwa chake ma voteji okwera kwambiri amatha kukhala ma waya ang'onoang'ono. Chotsatira chake, kutayika kwa mkuwa wa stator wa galimoto yothamanga kwambiri idzakhalanso yocheperapo kusiyana ndi yamagetsi otsika kwambiri. Pakuti zazikulu Motors mphamvu, ntchito otsika-voteji magetsi, koma chifukwa cha kufunika kwa mawaya wandiweyani ndipo amafunikira dera lalikulu la stator poyambira, kuti stator pachimake m'mimba mwake kuchita ntchito yambiri, kukula lonse la galimoto. adzakhalanso aakulu kwambiri.
② Kwa ma motors okulirapo, ma mota okwera kwambiri omwe amagwiritsidwa ntchito popangira magetsi ndi zida zogawira kuposa ndalama zonse zama injini otsika kwambiri, ndipo kutayika kwa mzere kumakhala kochepa, kumatha kupulumutsa mphamvu zina. Makamaka, 10kV mkulu-voltage Motors, mukhoza mwachindunji ntchito maukonde magetsi (China mkulu-voteji magetsi operekedwa kwa owerenga zambiri 10kV), kotero kuti ndalama mu zida mphamvu (makamaka thiransifoma) adzakhala zochepa, ntchito yosavuta. , chiwerengero cholephera chidzakhala chochepa.
(2) Zoipa
① Mtengo wokhotakhota ndiwokwera kwambiri (makamaka chifukwa cha kutsekereza), ndipo mtengo wazinthu zolumikizirana nawo udzakhala wokwera.
(ii) Njira yothandizira kutchinjiriza ndizovuta kwambiri, ndipo mtengo wantchito ndi wokwera.
③ Zofunikira pakugwiritsa ntchito chilengedwe ndizovuta kwambiri kuposa zama injini otsika kwambiri.
Kuyerekeza kusiyana pakati pa low voltage motor ndi high voltage motor
Kusiyana kwakukulu mu kapangidwe
Choyamba, zinthu zotchinjiriza koyilo zimapanga kusiyana, ma mota otsika-voltage, koyilo makamaka waya wa enameled kapena kutchinjiriza zina zosavuta, monga pepala lophatikizana, kusungunula kwamagetsi okwera kwambiri nthawi zambiri kumagwiritsidwa ntchito mumitundu yambiri, monga tepi yaufa ya mica, kapangidwe ndi zovuta kwambiri, digiri yapamwamba ya kukana kuthamanga.
Chachiwiri, kusiyana kwa kapangidwe ka kuzirala, ma mota otsika-voltage makamaka amagwiritsa ntchito mafani a coaxial kuwomba mwachindunji kuti awononge kutentha, ma mota amphamvu kwambiri okhala ndi ma radiator ambiri odziyimira pawokha, nthawi zambiri mafani amitundu iwiri, seti ya kufalikira kwamkati, gulu lakunja. fani yozungulira, ma seti awiri a mafani akuthamanga nthawi imodzi, kusinthana kwa kutentha pa radiator kudzatulutsidwa kunja kwa kutentha kwa injini.
Chachitatu, kapangidwe kake ndi kosiyana, ma motors otsika-voltage nthawi zambiri amakhala ndi mayendedwe asanachitike komanso pambuyo pake, pomwe ma mota amagetsi apamwamba, chifukwa cha katundu wolemetsa, nthawi zambiri pamakhala mayendedwe awiri kumapeto kwa axial, ndi kuchuluka kwa mayendedwe kumapeto osakhala axial amatsimikiziridwa molingana ndi momwe zinthu zilili, ndipo makamaka ma mota akulu adzagwiritsa ntchito zoyendera.
Kufananiza ntchito yamoto ndi mtengo
1. Kukwera kwa voliyumu kumapangitsa kuti mphamvu yamagetsi ikhale yayikulu.
2, kuchuluka kwa ma voliyumu kumakwera, kukweza mtengo woyika; ngakhale voteji kumawonjezera panopa amakhala ang'onoang'ono, waya ndi chingwe mtanda gawo akhoza kusankhidwa ang'onoang'ono, koma kufunika mkulu-voteji dera ophwanya, thiransifoma, switchgear ndi zipangizo zina ndalama akadali kuchuluka ndalama koyamba mu lalikulu, laling'ono kwambiri. mabizinesi akumanga atsopano akulolera kugwiritsa ntchito zida zotsika mphamvu.
3, kuchuluka kwa voteji kumapangitsa kuti mtengo wake ukhale wotsika kwambiri; ang'onoang'ono panopa kubweretsa kuchepetsa kutayika mphamvu, m'kupita kwa nthawi ndi koyenera, zochulukira zotsatira za ndalama mphamvu zodabwitsa, ambiri mabizinesi akuluakulu mu umisiri kusintha kwa otsika-voteji Motors kusandulika ma motors mkulu-voltage.
4, mphamvu yamagetsi ikukwera, m'pamenenso pali malo ambiri; chifukwa pali makabati owongolera mphamvu kwambiri komanso okhalamo ena.
5, kukwezeka kwa voteji, mota ndiyosavuta kuyiyambitsa, kuyambira kuwonjezereka kwa torque, kuyamba, kuwongolera ndikosavuta.
6, kukwezera mlingo wa voteji, kasamalidwe kake kakuvuta kwambiri; kotero mabizinesi ang'onoang'ono ali okonzeka kugwiritsa ntchito magetsi otsika, mabizinesi akulu ndi okonzeka kugwiritsa ntchito ma mota okwera kwambiri.
Nthawi yotumiza: Jun-12-2024
