Ib-theem lub cev muaj zog: kab kos duab

Cov txheej txheem:

Ib-theem lub cev muaj zog: kab kos duab
Ib-theem lub cev muaj zog: kab kos duab

Video: Ib-theem lub cev muaj zog: kab kos duab

Video: Ib-theem lub cev muaj zog: kab kos duab
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220V ib-theem hluav taws xob lub cev muaj zog yog siv dav hauv ntau yam kev lag luam thiab khoom siv hauv tsev: twj, tshuab ntxhua khaub ncaws, tub yees, xyaum ua haujlwm thiab tshuab cuab yeej.

ib-theem hluav taws xob lub cev muaj zog
ib-theem hluav taws xob lub cev muaj zog

Ntau yam

Muaj ob hom kev nrov tshaj plaws ntawm cov khoom siv no:

  • Colector.
  • Asynchronous.

Cov tom kawg yog qhov yooj yim dua hauv kev tsim, tab sis lawv muaj ntau qhov tsis zoo, ntawm cov uas yog cov teeb meem ntawm kev hloov qhov zaus thiab kev taw qhia ntawm kev sib hloov ntawm lub rotor.

Induction motor device

Lub zog ntawm lub cav no nyob ntawm tus qauv tsim thiab tuaj yeem sib txawv ntawm 5 txog 10 kW. Nws lub rotor yog luv luv-circuited winding - txhuas lossis tooj liab rods, uas raug kaw ntawm qhov kawg.

asynchronous ib-theem hluav taws xob lub cev muaj zog
asynchronous ib-theem hluav taws xob lub cev muaj zog

Raws li txoj cai, ib-theem asynchronous lub cev muaj zog yog nruab nrog ob lub windings offset los ntawm 90 ° txheeb ze rau ib leeg. Nyob rau hauv cov ntaub ntawv no, lub ntsiab (ua hauj lwm) occupies ib tug tseem ceeb ib feem ntawm lub grooves, thiab lub auxiliary (pib) - tus so. Koj lub npelub tshuab hluav taws xob ib-theem asynchronous tau txais tsuas yog vim nws tsuas muaj ib qho ua haujlwm winding.

Txoj Cai Ua Haujlwm

Qhov hloov pauv tam sim no ntws los ntawm lub ntsiab winding tsim ib qho chaw sib nqus uas hloov pauv raws sijhawm. Nws muaj ob lub voj voog ntawm tib lub amplitude, kev sib hloov uas tshwm sim ntawm ib leeg.

Raws li txoj cai ntawm electromagnetic induction, lub sib nqus flux hloov nyob rau hauv lub kaw lem ntawm lub rotor tsim ib tug induction tam sim no uas cuam tshuam nrog lub teb uas generates nws. Yog hais tias lub rotor nyob rau hauv ib qho chaw ruaj khov, lub sij hawm ntawm lub zog ua rau nws zoo ib yam, vim li ntawd, nws tseem nyob ruaj khov.

Thaum lub rotor tig, qhov sib npaug ntawm lub sijhawm ntawm lub zog yuav raug ua txhaum, vim tias qhov zawv zawg ntawm nws cov lem nyob rau hauv kev sib raug zoo rau rotating magnetic teb yuav txawv. Yog li, lub zog Ampère ua rau lub rotor tig los ntawm qhov chaw sib nqus ncaj qha yuav loj dua los ntawm sab ntawm qhov rov qab teb.

ib-theem hluav taws xob motors 220v
ib-theem hluav taws xob motors 220v

Nyob rau hauv lub lem ntawm lub rotor, lub induction tam sim no tsuas yog tshwm sim los ntawm lawv cov kev sib tshuam ntawm cov magnetic teb kab ntawm quab yuam. Lawv cov kev sib hloov yuav tsum tau nqa tawm ntawm qhov ceev me ntsis tsawg dua qhov zaus ntawm kev sib hloov ntawm lub teb. Qhov tseeb, qhov no yog lub npe asynchronous ib-theem hluav taws xob lub cev muaj zog los ntawm.

Vim qhov nce ntawm cov khoom siv thauj khoom, qhov kev sib hloov ceev txo, qhov induction tam sim no hauv lub rotor tig nce. Nws kuj tseem ua kom lub zog ntawm lub cev muaj zog thiab lub zog AC nws siv.

Kev sib txuas thiab pib daim duab

Tau kawg, manuallyspinning lub rotor txhua zaus koj pib lub cev muaj zog yog tsis yooj yim. Yog li ntawd, pib winding yog siv los muab qhov pib pib torque. Txij li thaum nws tsim ib lub kaum sab xis nrog kev ua haujlwm winding, thiaj li tsim kom muaj qhov sib nqus sib nqus, qhov tam sim no yuav tsum tau hloov mus rau theem txheeb ze rau tam sim no hauv kev ua haujlwm winding los ntawm 90 °.

Qhov no tuaj yeem ua tiav los ntawm suav nrog cov theem hloov pauv hauv Circuit Court. Lub choke lossis resistor tsis tuaj yeem muab qhov hloov pauv ntawm 90 °, yog li nws yog qhov tsim nyog siv lub capacitor ua lub caij hloov pauv. Qhov no ib-theem lub cev muaj zog Circuit Court muaj zoo heev pib zog.

Yog tias lub capacitor ua raws li theem hloov pauv, lub tshuab hluav taws xob tuaj yeem ua tus qauv:

  • Nrog khiav capacitor.
  • Nrog pib capacitor.
  • Nrog khiav thiab pib capacitor.

Qhov kev xaiv thib ob yog qhov ntau tshaj. Hauv qhov no, kev sib txuas luv luv ntawm kev pib winding nrog lub capacitor yog muab. Qhov no tsuas yog tshwm sim thaum pib, ces lawv tua. Qhov kev xaiv no tuaj yeem siv tau siv lub sijhawm relay lossis kaw lub voj voog thaum lub khawm pib nias.

ib-theem lub cev muaj zog Circuit Court
ib-theem lub cev muaj zog Circuit Court

Cov tswv yim zoo li no rau kev sib txuas ib-theem hluav taws xob lub cev muaj zog yog tus cwj pwm los ntawm qhov pib tam sim no tsis tshua muaj. Txawm li cas los xij, nyob rau hauv hom nominal, qhov tsis muaj tsawg vim qhov tseeb tias stator teb yog elliptical (nws muaj zog dua nyob rau hauv cov kev taw qhia ntawm tus ncej).

Scheme nrog kev txuas mus tas li ua haujlwm capacitor hauvHauv hom nominal, nws ua haujlwm zoo dua, thaum cov yam ntxwv pib yog nruab nrab. Qhov kev xaiv nrog kev ua haujlwm thiab pib capacitor, piv rau ob qho dhau los, yog nruab nrab.

Colector motor

Xav txog ib theem ib-theem collector-hom hluav taws xob lub cev muaj zog. Cov khoom siv ntau yam no tuaj yeem siv los ntawm DC lossis AC lub zog. Nws yog feem ntau siv rau hauv cov cuab yeej hluav taws xob, ntxhua khaub ncaws thiab tshuab xaws, nqaij grinders - qhov twg yuav tsum rov qab, nws qhov kev sib hloov ntawm ntau tshaj 3000 rpm lossis zaus hloov kho.

Lub rotor thiab stator windings ntawm lub tshuab hluav taws xob txuas nrog hauv series. Cov tam sim no yog muab los ntawm cov txhuam hniav nyob rau hauv kev sib cuag nrog cov collector daim hlau, uas qhov kawg ntawm lub rotor windings haum.

ib-theem lub cev muaj zog txuas daim duab
ib-theem lub cev muaj zog txuas daim duab

Kev thim rov qab yog ua los ntawm kev hloov pauv qhov polarity ntawm kev sib txuas ntawm rotor lossis stator rau cov hluav taws xob sib txuas, thiab kev sib hloov ceev yog tswj los ntawm kev hloov cov tam sim no hauv cov windings.

Flaws

Cov khoom siv hluav taws xob ib leeg-theem hluav taws xob muaj qhov tsis zoo hauv qab no:

  • xov tooj cua cuam tshuam, ua haujlwm nyuaj, theem suab nrov.
  • Qhov nyuaj ntawm cov cuab yeej, nws yuav luag tsis tuaj yeem kho nws tus kheej.
  • Tus nqi siab.

Kev sib txuas

Yuav kom lub cev muaj zog hauv ib-theem network sib txuas kom raug, qee qhov yuav tsum tau ua. Raws li twb tau hais lawm, muaj ntau lub cav muaj peev xwmua haujlwm los ntawm ib theem network.

Ua ntej txuas, nws yog ib qho tseem ceeb kom paub tseeb tias qhov zaus thiab qhov hluav taws xob tau teev nyob rau hauv rooj plaub sib haum rau qhov tseem ceeb ntawm cov hluav taws xob network. Txhua qhov kev sib txuas ua haujlwm yuav tsum tau ua tsuas yog nrog lub tshuab hluav taws xob de-energized. The charged capacitors kuj yuav tsum zam.

Yuav ua li cas txuas ib lub cev muaj zog

Txhawm rau txuas lub cev muaj zog, nws yog qhov tsim nyog los txuas lub stator thiab armature (rotor) hauv series. Terminals 2 thiab 3 txuas nrog, thiab lwm qhov yuav tsum tau txuas nrog 220V circuit.

Vim qhov tseeb tias ib-theem 220V hluav taws xob lub cev muaj zog ua haujlwm nyob rau hauv ib qho kev hloov pauv tam sim no, cov hlau nplaum hloov pauv tshwm sim hauv cov tshuab sib nqus, uas ua rau tsim cov eddy tam sim no. Yog vim li cas qhov sib nqus system ntawm stator thiab rotor yog ua los ntawm cov ntawv hlau hluav taws xob.

yuav ua li cas txuas ib theem hluav taws xob lub cev muaj zog
yuav ua li cas txuas ib theem hluav taws xob lub cev muaj zog

Kev sib txuas yam tsis muaj chav tswj hwm nrog cov khoom siv hluav taws xob tuaj yeem ua rau qhov tseeb tias thaum lub sijhawm pib muaj qhov cuam tshuam tseem ceeb ntawm qhov tam sim no, thiab qhov tshwm sim tshwm sim hauv cov khoom siv. Rov qab cov kev taw qhia ntawm kev sib hloov ntawm lub armature yog ua los ntawm kev hloov cov kev sib txuas ua ntu zus thaum lub armature lossis rotor leads yog thim rov qab. Qhov tsis zoo ntawm cov motors no yog qhov muaj cov txhuam hniav, uas yuav tsum tau hloov tom qab txhua qhov kev ua haujlwm ntev ntawm cov cuab yeej.

Cov teeb meem zoo li no tsis muaj nyob hauv asynchronous motors, vim lawv tsis muaj cov khoom sau. Lub magnetic teb ntawm lub rotor yog tsim tsis muaj hluav taws xob sib txuas vim yog sab nraud magnetic teb ntawm stator.

Txoj kev sib nqus ntawm tus pib pib

Cia peb xav txog yuav ua li cas koj tuaj yeem txuas lub tshuab hluav taws xob ib zaug los ntawm lub tshuab hluav taws xob sib nqus.

1. Yog li ntawd, ua ntej ntawm tag nrho cov, nws yog ib qhov tsim nyog los xaiv ib tug magnetic tam sim no oob khab nyob rau hauv xws li ib tug txoj kev uas nws cov kev sib cuag system muaj peev xwm tiv taus lub load ntawm ib tug hluav taws xob lub cev muaj zog.

2. Pib, piv txwv li, muab faib los ntawm tus nqi ntawm 1 txog 7, thiab qhov loj dua qhov ntsuas no, qhov loj dua tam sim no qhov kev sib cuag ntawm cov cuab yeej no tuaj yeem tiv taus.

  • 10A – 1.
  • 25A - 2.
  • 40A - 3.
  • 63A – 4.
  • 80A – 5.
  • 125A – 6.
  • 200A – 7.

3. Tom qab qhov luaj li cas ntawm lub oob khab tau txiav txim siab, nws yog ib qho tsim nyog yuav tsum tau them sai sai rau kev tswj cov kauj. Nws tuaj yeem yog 36B, 380B thiab 220B. Nws raug nquahu kom nres ntawm qhov kev xaiv kawg.

4. Tom ntej no, lub tshuab hluav taws xob sib nqus tau sib sau ua ke, thiab lub zog hluav taws xob txuas nrog. 220V yog cov tswv yim rau qhib kev sib cuag, lub tshuab hluav taws xob txuas nrog cov khoom siv hluav taws xob sib txuas ntawm lub tshuab hluav taws xob.

hluav taws xob lub cev muaj zog nyob rau hauv ib tug ib-theem network
hluav taws xob lub cev muaj zog nyob rau hauv ib tug ib-theem network

5. Cov khawm "Stop - Pib" txuas nrog. Lawv lub zog yog muab los ntawm cov tswv yim ntawm lub zog tiv tauj ntawm tus pib. Piv txwv li, cov theem txuas nrog lub khawm "Stop" ntawm qhov kev sib cuag kaw, tom qab ntawd los ntawm nws mus rau lub pob pib ntawm qhov qhib kev sib cuag, thiab los ntawm kev sib cuag ntawm "Start" khawm mus rau ib qho kev sib cuag ntawm cov hlau nplaum. pib coil.

6. "Zero" txuas nrog rau qhov tso zis thib ob ntawm lub oob khab. Txhawm rau txhim kho qhov chaw ntawm lub tshuab hluav taws xob sib nqus, nws yog ib qho tsim nyog yuav tsum tau shunt lub khawm pib ntawm qhov kev sib cuag kaw rau qhov thaiv.kev sib cuag ntawm lub oob khab uas muab lub zog los ntawm lub pob "Stop" mus rau lub kauj.

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