Momwe mungawerengere kutsetsereka kwa mota ya asynchronous?

Chinthu chachindunji cha ma asynchronous motors ndikuti pali kusiyana pakati pa liwiro lenileni la injini ndi liwiro la maginito, ndiko kuti, pali kutsetsereka; Poyerekeza ndi magawo ena ogwirira ntchito agalimoto, kutsetsereka kwa mota ndikosavuta kupeza, ndipo wogwiritsa ntchito galimoto iliyonse atha kugwiritsa ntchito zosavuta Ntchitoyi imawerengedwa.

M'mawu a magwiridwe antchito a mota, kutsika kwapang'onopang'ono ndi gawo lofunikira kwambiri, lomwe limadziwika ndi kuchuluka kwa slip pokhudzana ndi liwiro lolumikizana. za.Mwachitsanzo, ma frequency amphamvu a 2-pole motor yokhala ndi 1.8% ndi 12-pole motor imakhala ndi kusiyana kwakukulu pakutsetsereka kwenikweni. Kutsika kukakhala kofanana ndi 1.8%, kutsetsereka kwa 2-pole power frequency asynchronous motor ndi 3000 × 1.8% = 54 rpm, kutsetsereka kwa 12-pole power frequency motor ndi 500 × 1.8% = 9 rpm.Momwemonso, kwa ma mota okhala ndi mitengo yosiyana yokhala ndi slip yemweyo, ma slip ratios ofananira nawonso azikhala osiyana.

Kuchokera pakuwunika koyerekeza kwa malingaliro a slip ndi slip, slip ndi mtengo wokwanira, ndiko kuti, kusiyana kwakukulu pakati pa liwiro lenileni ndi synchronous magnetic field speed, ndipo unit ndi rev / min; pamene slip ndi kusiyana pakati pa kutsetsereka ndi synchronous liwiro . peresenti.

Chifukwa chake, liwiro lolumikizana ndi liwiro lenileni la injini liyenera kudziwika powerengera slip.Kuwerengera kwa liwiro lolumikizana la injini kumatengera chilinganizo n = 60f / p (pomwe f ndi ma frequency ovotera a mota, ndipo p ndi kuchuluka kwa ma pole awiri a mota); Choncho, liwiro synchronous lolingana mphamvu pafupipafupi 2, 4, 6, 8, 10 ndi 12 Kuthamanga ndi 3000, 1500, 1000, 750, 600 ndi 500 rpm.

Liwiro lenileni la galimoto likhoza kuzindikiridwa ndi tachometer, ndipo imawerengedwanso molingana ndi chiwerengero cha kusintha kwa mphindi imodzi.Kuthamanga kwenikweni kwa injini ya asynchronous ndi yocheperapo kusiyana ndi liwiro la synchronous, ndipo kusiyana pakati pa liwiro la synchronous ndi liwiro lenileni ndi kutsetsereka kwa injini ya asynchronous, ndipo unit ndi rev / min.

Pali mitundu yambiri ya ma tachometer, ndipo ma tachometer amagetsi ndi lingaliro wamba: zida zoyezera liwiro lozungulira zopangidwa ndikupangidwa kutengera ukadaulo wamakono wamagetsi nthawi zambiri zimakhala ndi masensa ndi zowonetsera, ndipo zina zimakhalanso ndi zotulutsa ndi kuwongolera.Mosiyana ndi teknoloji yoyezera liwiro la photoelectric, inductive tachometer sifunikira kukhazikitsa chithunzithunzi cha photoelectric, palibe chowonjezera shaft shaft, ndipo ingagwiritsidwe ntchito pamakampani opopera madzi ndi mafakitale ena komwe kumakhala kovuta kukhazikitsa masensa.