Sei mota ichigadzira shaft current?

Sei mota ichigadzira shaft current?

Ikozvino mumotor's shaft-bearing seat-base circuit inonzi shaft current.

Zvikonzero zve shaft ikozvino:

Magnetic field asymmetry;

Iko kune harmonics mumagetsi ekupa ikozvino;

Kusaita kugadzirwa uye kuiswa, zvichikonzera kusaenzana kwemhepo mikaha nekuda kwerotor eccentricity;

Pane mukaha pakati pemasemicircle maviri eiyo detachable stator core;

Nhamba yezvidimbu zve stator core yakagadzirwa ne stacking sectors haina kufanira.

Njodzi: Iyo mota inotakura pamusoro kana mabhora achakukurwa uye point-senge micropores ichaumbwa, izvo zvinozowedzera kutakura mashandiro ekushanda, kuwedzera friction kurasikirwa uye kupisa, uye pakupedzisira kukonzeresa kupisa.

Sei general motors isinga shandiswe munzvimbo dzemapani?

Altitude ine yakashata mhedzisiro pakukwira kwemota tembiricha, mota corona (yakakwira voltage mota) uye DC mota commutation.

Zvinhu zvitatu zvinotevera zvinofanira kucherechedzwa:

Iyo yakakwirira yakakwirira, iyo inowedzera tembiricha yekukwira kwemota uye idiki simba rekubuda.Nekudaro, kana tembiricha yadzikira nekuwedzera kwehurefu hwakakwana kutsiva pesvedzero yekukwirira pakukwira kwekushisa, iyo yakatemerwa inobuda simba remota inogona kuramba isina kuchinjika;

Matanho ekudzivirira Corona anofanirwa kutorwa kana ma-high-voltage motors achishandiswa pamapani;

Altitude haina kunaka kune DC mota commutation, saka kutarisisa kunofanirwa kubhadharwa pakusarudzwa kwekabhoni brashi zvinhu.

Sei injini isingashande nemutoro wakareruka?

Kana mota ichimhanya nemutoro wakareruka, zvinokonzeresa:

Iyo mota simba chinhu chakaderera;

Motokari inobudirira yakaderera.

Kana mota ichimhanya nemutoro wakareruka, zvinokonzeresa:

Iyo mota simba chinhu chakaderera;

Motokari inobudirira yakaderera.

Zvinozokonzera kuparara kwemidziyo uye kushanda kusina hupfumi.

Ndezvipi zvikonzero zvekupisa kwemota?

Mutoro wakakurisa;

chikamu chisipo;

Mhepo ducts yakavharwa;

Low speed yekumhanya nguva yakarebesa;

Simba rekupa maharmonics akakurisa.

Ibasa ripi rinofanira kuitwa usati waisa mota isati yashandiswa kwenguva yakareba?

Edza iyo stator, inopeta-chikamu-ku-chikamu chekudzivirira kudzivirira uye mhepo-kusvika-pasi insulation kuramba.

Iyo insulation kuramba R inofanirwa kugutsa inotevera fomula:

R＞Un/(1000+P/1000)(MΩ)

Un: rated voltage yemotor winding (V)

P: Motokari simba (KW)

YeUn=380V mota, R＞0.38MΩ.

Kana iyo insulation kuramba yakaderera, unogona:

a: Motokari inomhanya isina mutoro kwemaawa maviri kusvika matatu pakuomeswa;

b: Shandisa low-voltage alternating current ye 10% ye rated voltage kuti ipfuure mumhepo inomonereka kana kubatanidza mapeji matatu-phase windings munhevedzano uye wozoabika neakananga ikozvino kuti uchengetedze ikozvino pa 50% yehuwandu hwemazuva ano;

c: Shandisa feni kutumira mweya unopisa kana chinhu chekudziya chekudziya.

Chenesa injini.

Tsiva kubereka girisi.

Sei ndisingakwanise kutanga mota munzvimbo inotonhora pamadiro?

Kana iyo mota ichichengetwa munzvimbo yakadzika tembiricha kwenguva yakareba, ichaita:

Motor insulation yakatsemuka;

Kutakura girizi kunotonhora;

Solder poda pamajoini waya.

Naizvozvo, mota inofanirwa kupiswa uye kuchengetwa munzvimbo inotonhora, uye mamhepo nemabhengi anofanirwa kuongororwa isati yashanda.

Ndezvipi zvikonzero zvekusagadzikana kwechitatu-chikamu ikozvino mumotokari?

Nhatu-phase voltage kusaenzana;

Imwe chikamu chebazi mukati memotor ine urombo husina kunaka kana kusabatana kwakashata;

Motor winding inotendeuka-to-turn short circuit kana short circuit kusvika pasi kana phase-to-phase;

Wiring error.

Sei mota ye60Hz isingabatanidzwe kune 50Hz magetsi?

Paunenge uchigadzira mota, iyo silicon simbi pepa inowanzoitwa kuti ishande munzvimbo yekuzara yemagnetization curve.Kana simba rekupa magetsi richigara, kudzikisa frequency kunowedzera iyo magineti flux uye yekuwedzeredza ikozvino, zvichikonzera kuwedzera kwemota ikozvino uye kurasikirwa kwemhangura, izvo zvinozotungamira mukuwedzera kwekushisa kwemota.Muzviitiko zvakakomba, mota inogona kupiswa nekuda kwekupisa kwecoil.

Ndezvipi zvikonzero zvekurasikirwa kwemota chikamu?
Magetsi:

Murombo chinja kusangana;

Transformer kana kuputsa mutsara;

Iyo fuse inoputika.

Motor chikamu:

Iyo screws mumotor junction bhokisi yakasununguka uye iyo yekubata haina kunaka;

Urombo hwemukati wiring welding;

Imotor winding yatyoka.

Ndezvipi zvinokonzeresa kuzununguka uye ruzha rwemotor?
Mechanical zvinhu:
Kusakwana kwekutakura lubrication uye kupfeka kupfeka;
Zvisungo zvekusungirira zvakasununguka;
Pane marara mukati memota.
Electromagnetic aspects:
Motor overload kushanda;
Nhatu-chikamu ikozvino kusaenzana;
chikamu chisipo;
Short circuit kukanganisa kunoitika mu stator uye rotor windings;
Iyo welding chikamu che cage rotor yakavhurika uye inokonzera kuputsika mbariro.
Ibasa ripi rinofanirwa kuitwa usati watanga mota?

Kuyera kudzivirira kwekudzivirira (kune-low-voltage motors, haifaniri kunge iri pasi pe0.5MΩ);

Edza magetsi ekupa.Tarisa uone kana mota wiring yakarurama uye kana magetsi emagetsi anosangana nezvinodiwa;

Tarisa uone kana mudziyo wekutanga uri muchimiro chakanaka;

Tarisa kana fuse yacho yakakodzera;

Tarisa uone kana mota yakadzikwa uye zero yekubatanidza yakanaka;

Tarisa kutapurirwa kwehurema;

Tarisa uone kana nharaunda yemota yakakodzera uye bvisa zvinhu zvinopfuta uye mamwe madhiri.

Ndezvipi zvikonzero zvemota inotakura overheating?

Iyo mota pachayo:

Zvindori zvemukati nekunze zvekutakura zvakanyanya kusimba;

Kune matambudziko nechimiro uye chinzvimbo kushivirira kwezvikamu, senge kusasimba coaxiality yezvikamu zvakaita semuchina base, chivharo chekupedzisira, uye shaft;

Kusarudzwa kusina kunaka kwemabheri;

Kutakura kwacho hakuna kunyatsogadziriswa kana kuti kutakura hakuna kucheneswa zvakachena, uye kune marara mugirizi;

axis current.

Kushandisa:

Kuiswa kwakashata kweyuniti, senge coaxiality yemota shaft uye mudziyo unotyairwa hauzadzise zvinodiwa;

Iyo pulley inodhonzwa zvakanyanya;

Mabhengi haana kuchengetedzwa zvakanaka, girizi haina kukwana kana hupenyu hwesevhisi hwapera, uye mabearings acho anooma uye akaipa.

Ndezvipi zvikonzero zvekudzikira mota insulation kuramba?

Kumonereka kwakanyorova kana kuti kune kupindira kwemvura;

Guruva kana mafuta anounganidza pamhepo;

Insulation kuchembera;

Iyo insulation yemota lead kana wiring board yakakuvadzwa.