Ua ntej, lub cev muaj zog load tus nqi yog tsawg.Vim yog qhov kev xaiv tsis raug ntawm lub cev muaj zog, cov khoom siv ntau dhau lossis kev hloov pauv hauv cov txheej txheem tsim khoom, qhov tseeb ua haujlwm ntawm lub cev muaj zog tsawg dua li qhov ntsuas ntsuas, thiab lub cev muaj zog uas suav txog li 30% mus rau 40% ntawm lub peev xwm nruab. nyob rau hauv qhov ntsuas load ntawm 30% mus rau 50%.Kev ua haujlwm tsawg dhau lawm.

Qhov thib ob, lub hwj chim mov voltage yog asymmetric lossis qhov voltage tsawg dhau.Vim yog qhov tsis sib npaug ntawm ib-theem load ntawm peb-theem plaub-xaim qis-voltage fais fab mov system, peb-theem voltage ntawm lub cev muaj zog yog asymmetrical, thiab lub cev muaj zog generates tsis zoo ib ntus torque.Kev poob hauv kev ua haujlwm ntawm cov motors loj.Tsis tas li ntawd, cov kab hluav taws xob hluav taws xob tsawg tsawg rau lub sijhawm ntev, uas ua rau lub cev muaj zog tam sim no nyob rau hauv ib txwm ua haujlwm loj heev, yog li qhov poob nce.Qhov ntau dua qhov peb-theem voltage asymmetry, qhov qis dua qhov voltage, qhov poob ntau dua.

Qhov thib peb yog qhov qub thiab qub (tso tseg) motors tseem siv.Cov motors no siv cov chav kawm E rwb thaiv tsev, muaj qhov loj, muaj kev pib ua haujlwm tsis zoo, thiab tsis muaj txiaj ntsig.Txawm hais tias nws tau dhau xyoo ntawm kev kho dua tshiab, nws tseem siv tau rau ntau qhov chaw.

Plaub, kev tswj xyuas tsis zoo.Qee chav nyob tsis tuav lub cev muaj zog thiab cov khoom siv raws li qhov xav tau, thiab tso cai rau lawv khiav mus ntev, uas ua rau kev poob mus ntxiv.

Yog li ntawd, nyob rau hauv qhov kev pom ntawm cov kev siv hluav taws xob, nws tsim nyog kawm seb lub zog txuag lub tswv yim xaiv.

Muaj kwv yees li xya hom kev txuag hluav taws xob rau cov motors:

1. Xaiv lub zog txuag lub cev muaj zog

Piv nrog rau cov motors zoo tib yam, lub cev muaj zog ua haujlwm zoo ua kom zoo rau tag nrho cov qauv tsim, xaiv cov khoom siv tooj liab zoo thiab cov ntaub ntawv silicon steel, txo ntau yam kev poob, txo qhov poob los ntawm 20% ~ 30%, thiab txhim kho efficiency los ntawm 2% ~ 7%;Lub sijhawm them rov qab Feem ntau 1-2 xyoos, qee lub hlis.Hauv kev sib piv, lub tshuab ua haujlwm siab yog 0.413% ntau dua li J02 series lub cev muaj zog.Yog li ntawd, nws yog ib qho tseem ceeb los hloov cov qub hluav taws xob motors nrog high-efficiency electric motors.

2. Kev xaiv tsim nyog ntawm lub cev muaj zog kom ua tiav lub zog txuag

Lub xeev tau ua cov cai hauv qab no rau peb qhov chaw ua haujlwm ntawm peb-theem asynchronous motors: thaj chaw lag luam kev lag luam yog nyob nruab nrab ntawm 70% thiab 100% ntawm cov nqi thauj khoom;thaj chaw ua haujlwm dav dav yog nyob nruab nrab ntawm 40% thiab 70% ntawm tus nqi thauj khoom;tus nqi thauj khoom yog 40% Cov hauv qab no yog cov haujlwm tsis yog kev lag luam.Kev xaiv tsis raug ntawm lub cev muaj peev xwm yuav ua rau muaj hluav taws xob pov tseg.Yog li ntawd, siv lub tshuab tsim nyog los txhim kho lub zog thiab kev thauj khoom tuaj yeem txo lub zog poob thiab txuag lub zog.

3. Siv qhov sib nqus qhov wedge es tsis txhob ntawm qhov qub qhov wedge

4. Txais Y/△ tsis siv neeg hloov dua siab tshiab

Txhawm rau daws cov khoom pov tseg ntawm hluav taws xob hluav taws xob thaum cov khoom siv me me, ntawm qhov chaw tsis hloov lub cev muaj zog, lub tshuab hloov pauv tsis siv neeg Y / △ tuaj yeem siv los ua kom tiav lub hom phiaj ntawm kev txuag hluav taws xob.Vim hais tias nyob rau hauv peb-theem AC fais fab daim phiaj, qhov voltage tau los ntawm kev sib txuas ntawm cov load sib txawv, yog li lub zog absorbed los ntawm daim phiaj hluav taws xob kuj txawv.

5. Lub cev muaj zog lub cev muaj zog reactive zog them nyiaj

Kev txhim kho lub zog zoo thiab txo qis hluav taws xob poob yog lub hom phiaj tseem ceeb ntawm kev them nyiaj rov qab hluav taws xob.Lub zog tseem ceeb yog sib npaug rau qhov piv ntawm lub zog ua haujlwm rau lub zog pom tseeb.Feem ntau, qhov tsis muaj hluav taws xob tsawg yuav ua rau muaj qhov tam sim no ntau dhau.Rau ib tug muab load, thaum lub mov voltage yog tas li, qhov qis zog qhov tseem ceeb, qhov ntau dua tam sim no.Yog li ntawd, lub hwj chim tseem ceeb yog siab npaum li qhov ua tau kom txuag hluav taws xob.

6. Kev tswj xyuas ceev ceev

7. Kev tswj ceev ceev ntawm lub tshuab winding

Jessica