Slip Ring vs. Squirrel Cage induction Motors: Comprehensive Comparison

Lub cev muaj zog yog cov khoom siv hluav taws xob uas hloov lub zog hluav taws xob mus rau hauv cov tshuab ua hluav taws xob. Hauv thaj teb hluav taws xob, vim nws tus kheej - pib thiab ruaj khov lub zog, nws yog dav siv ua lub tshuab tsav tsheb rau ntau cov cav tov thiab khoom siv. Muaj ob hom rotors siv nyob rau hauv nws: squirrel tawb thiabNPOOV nplhaib. Niaj hnub no, ByTune yuav, ua ke nrog koj, nkag siab tias lub cev muaj zog yog dab tsi, nws ua haujlwm li cas, thiab sib piv cov qauv, kev ua yeeb yam, kev siv, thiab lwm yam ntawm ob hom rotors.

 

Lub cev muaj zog induction, hu ua asynchronous motor, yog AC lub cev muaj zog. Nws feem ntau muaj ob qhov loj: stator thiab rotor. Tsis tas li ntawd, nws tseem suav nrog cov khoom pabcuam xws li cov npog kawg, bearings, thiab kiv cua.
• Stator: Nws yog ib feem nyob ruaj ruaj ntawm lub cev muaj zog, muaj ntawm cov stator tub ntxhais, lub qog winding, thiab thav duab. Lub stator winding yog ua los ntawm ntau cov kev npaj thiab txuas cov coils. Cov coils no tau kos rau hauv qhov slots ntawm cov stator core. Los ntawm kev dhau peb - ​​theem hloov tshiab los ntawm lawv, ib daim teb sib nqus yog tsim tawm.
• Rotor: Lub rotor yog ib feem ntawm lub cev muaj zog, uas tuaj yeem tsim hluav taws xob torque los tsav lub cev muaj zog thiab cov tshuab tig. Cov rotor feem ntau yog "squirrel - tawb" tsim, muaj ib tug laminated core thiab conductive tuav uas txuas nrog nws ntev, luv luv - circuited ntawm ob qho tag nrho los ntawm rings. Txawm li cas los xij, "qhov txhab rotor" nrog plam - rings thiab sab nraud resistors kuj nrov heev.

 

Lub cev muaj zog induction feem ntau muaj ob ntu: stator thiab rotor. Thaum peb-theem alternating tam sim no yog siv rau lub stator winding, ib tug rotating magnetic teb yog generated nyob rau hauv lub stator. Nws synchronous ceev Ns=120f/p, qhov twg:
F yog lub zog hluav taws xob (hauv hertz, hz).
p yog tus naj npawb ntawm ncej khub ntawm lub cev muaj zog.
Tus txheeb ze rau lub rotor nyob ruaj ruaj, cov rotor conductors hauv lub cev muaj zog tuaj yeem txiav cov kab sib nqus induction kom tsim tau lub zog hluav taws xob. Txij li thaum lub rotor conductors tsim ib lub voj kaw, lub induced electromotive quab yuam yuav ua rau ib tug induced tam sim no nyob rau hauv lub rotor conductors.
Raws li Lenz txoj cai, lub magnetic teb generated los ntawm induced tam sim no interacts nrog lub rotating magnetic teb, tsim ib tug torque uas ua rau lub rotor pib tig. Txawm li cas los xij, lub rotor ib txwm tig ntawm qhov nrawm me ntsis qis dua qhov nrawm nrawm. Tus nqi swb s=Ns-Nr/Ns(Nr yog qhov kev sib hloov ceev ntawm lub induction motor). Tus nqi no feem ntau yog nruab nrab ntawm 1% thiab 5%.

 

TOM QAB NTIAJING Rotor

• Nws yog dab tsi: Lub nplhaib plam yog ib feem ntawm lub qhov txhab - rotor induction motor. Nws muaj cov nplhaib conductive, txhuam hniav, txhuam tuav, cov ntaub ntawv insulating, thiab lwm yam. Lub rotor winding ntawm lub nplhaib nplhaib induction lub cev muaj zog yog peb-theem winding txuas nrog lub hnub qub, thiab peb qhov hluav taws xob terminals txuas nrog peb lub nplhaib conductive.
• Cov ntsiab cai ua haujlwm: thaum lub cev muaj zog, ua rau lub zog hluav taws xob thiab cov tsis tau tsim tawm tam sim no yog tsim tawm hauv lub rotor winding. Los ntawm cov zawv zawg kev sib cuag ntawm txhuam hniav thiab cov nplhaib sib tw, tam sim no nyob rau hauv lub rotor winding yog coj tawm mus rau sab nraud. Qhov no yog siv los tswj qhov pib, kev tswj nrawm, braking, thiab lwm yam kev ua haujlwm ntawm lub cev muaj zog.

Squirrel Cage Rotor

Nws yog dab tsi:Tus nas ncuav - tawb yog lub rotor siv nyob rau hauv ib tug nas daus - tawb induction tsav. Nws tau txais nws lub npe vim tias cov duab zuag qhia tag nrho ntawm nws cov winding zoo ib yam li ib tug nas ntxhw tawb. Tus nas ncuav - tawb rotor yog tsim ntawm ntau cov kab lus tshaj tawm ntxig rau hauv lub rotor slots thiab ob lub voj kawg ib ncig. Me - Cov Motors loj - Ntaus cov mis nyuj feem ntau siv cov cam khwb cia - Aluminium vuam, thaum motors saum 100kw yog welded nrog tooj liab bars thiab tooj liab rings.

Ua haujlwm ua haujlwm:Thaum lub sijhawm ua haujlwm, tom qab peb - ​​theem ntxiv tam sim no tau thov rau lub pob zeb winding, lub teb sib nqus yog tsim hauv stator. Qhov kev sib nqus no tig hauv lub stator ntawm synchronous ceev thiab txiav tus nas ncuav - tawb coj tuav tuav ntawm lub rotor. Txij li thaum tus nas ncuav - tawb ua rau cov kab ke kaw tau kaw cov kab ke, thaum lub zog hluav taws xob txiav thiab ua rau lub zog hluav taws xob thiab cov khoom siv tam sim no yog tsim tawm hauv cov kab. Nws tsav lub rotor kom ua rau lub cev muaj zog tig hauv kev coj ntawm lub rotating sib nraus sib nqus.

Txawm hais tias tus qauv ntawm tus squirrel - tawb yog qhov muaj zog dua, lub plam - lub nplhaib rotor kuj coj tau ntau yam txiaj ntsig rau lub plam - lub nplhaib induction lub cev muaj zog, xws li:
• Siab Pib Torque:Lub nplhaib-ntiv nplhaib tuaj yeem muab lub zog pib siab thiab lub zog muaj zog los ntawm kev ntxig qhov tsim nyog rau hauv lub rotor Circuit Court. Yog li ntawd, thaum plam - nplhaib induction motors siv nyob rau hauv cranes thiab winches uas yuav tsum tau pib nyob rau hauv load, lawv muaj peev xwm kov yeej lub load kuj thiab pib cov cuab yeej smoothly.
• Tsawg pib tam sim no:Raws li peb txhua tus paub, qhov pib tam sim no ntau dhau tuaj yeem ua rau muaj kev cuam tshuam loj heev rau daim phiaj hluav taws xob. Thaum ib tug resistor muab tso rau hauv lub plam - lub nplhaib rotor Circuit Court, qhov pib tam sim no yuav txo. Qhov no yog vim hais tias thaum lub zog ntawm lub rotor Circuit Court nce, lub rotor tam sim no txo, thiab raws li txoj cai transformer, lub stator tam sim no kuj yuav txo raws li.
• Dav ceev - kev cai:Lub khauj khaum - Ntiv nplhaib induction lub cev muaj peev xwm ua tiav cov kev tswj ceev los ntawm kev hloov tus nqi ntawm lub rotor Circuit Court. Qhov no yog pab tau heev hauv qee cov hlau - khoom siv xws li cov tshuab dhos thiab tshuab milling. Thaum lub tshuab txuas ntxiv nce, lub cev muaj zog qeeb; Hloov siab, thaum lub tshuab xa hluav taws xob txo qis, lub cev muaj zog ceev nce. Qhov no yog ib yam dab tsi uas squirrel - tawb induction tsis tuaj yeem ua.

Los ntawm cov ntsiab lus saum toj no, peb tuaj yeem xaus tias plam - ib ncig thiab nas ncuav txhua qhov muaj lawv cov yam ntxwv hauv kev pom cov tshuab raj. Hauv cov lus yooj yooj yim, yog tias koj muaj cov kev xav tau zoo rau kev pib ua kom muaj zog - ib qho kev muaj peev xwm, qwj - nplhaib induction lub cev yuav haum rau koj. Txawm li cas los xij, yog tias koj muaj tus nqi yuav tsum tau siv nruj thiab xav siv nws nyob rau hauv tas mus li cov khoom siv tsis tu ncua, koj tuaj yeem xaiv ib tus nas - tawb induction tsav.

Hauv kev siv tswv yim, peb yuav tsum xaiv hom lub cev muaj zog raws li cov khoom siv tshwj xeeb thiab cov kev xav tau siv. Thiab yog tias koj xav kawm ntxiv, peb tsab xov xwm "Dab tsi yog Kev Siv Cov Nplhaib Ntiv Nplhaib hauv Alternator?"Tej zaum kuj yuav pab tau. Raws li lub nplhaib ntim khoom rau ntau dua 26 xyoo, byTune yog ntseeg siab nyob rau hauv kev muab lub siab kom ntseeg tau - ib ncig rau koj qhov kev kub siab.