Kev ua txhaum ntau thiab kev saib xyuas ntawm 11 peb-theem asynchronous motors
Raws li tus kws tshaj lij hauv kev lag luam tu, kuv yuav tsum tsis txhob paub txog cov khoom siv xws li peb-theem asynchronous motors, txoj cai? Rau ib qho kev ua txhaum cai thiab kev ntsuas kev saib xyuas ntawm cov cuab yeej zoo li no, Xiaoyi tau sau qee cov ntsiab lus los qhia rau txhua tus. Cia wb mus saib ua ke!
1, Cov suab nrov txawv txav thiab lub suab txawv txav thaum lub sijhawm ua haujlwm ntawm lub cev muaj zog
1. Ua rau ua haujlwm tsis zoo
① Kev sib txhuam ntawm rotor thiab stator rwb thaiv tsev ntawv lossis cov kab txuas;
② Hnav cov kabmob lossis cov khoom txawv teb chaws xws li cov xuab zeb hauv cov roj;
③ xoob hlau tub ntxhais ntawm stator thiab rotor;
④ Tsis muaj roj hauv cov kabmob;
⑤ Sau cov pa cua los yog so lub hau kiv cua;
⑥ Kev sib txhuam ntawm stator thiab rotor hlau cores;
⑦ Siab lossis tsis sib npaug fais fab mov voltage;
⑧ Kev sib txuas tsis raug lossis luv luv ntawm stator winding.
2. Kev daws teeb meem
① Trim rwb thaiv tsev thiab qis groove wedges;
② Hloov cov kabmob lossis cov kabmob huv si;
③ Kho lub stator thiab rotor hlau cores;
④ Txaus siab rau;
⑤ Ntxuav lub tshuab cua; Reinstall lub cuab yeej;
⑥ Tshem tawm cov khawb thiab, yog tias tsim nyog, cov rotor me me hauv lub tsheb;
⑦ Tshawb xyuas thiab kho lub zog hluav taws xob;
⑧ Tshem tawm stator winding faults.
2, Kev co ntau dhau thaum lub sijhawm ua haujlwm lub cev muaj zog
1. Ua rau ua haujlwm tsis zoo
① Vim muaj kev tshem tawm ntau dhau ntawm cov kabmob hnav;
② Tsis sib haum huab cua;
③ Tsis sib npaug rotor;
④ Khoov ntawm ncej;
⑤ Deformation lossis loosening ntawm cov tub ntxhais hlau;
⑥ Qhov nruab nrab ntawm qhov sib txuas (pulley) tsis raug ntsuas;
⑦ Ntxuam tsis txaus;
⑧ Lub zog tsis txaus ntawm lub casing lossis lub hauv paus;
⑨ Lub cev muaj zog lub hauv paus screws;
⑩ Qhib vuam Circuit Court ntawm tawb rotor; Qhib Circuit Court ntawm qhov txhab rotor; Fault nyob rau hauv stator winding.
2. Kev daws teeb meem
① Kho cov kabmob thiab hloov lawv yog tias tsim nyog;
② Kho qhov sib txawv ntawm huab cua kom nws txawm;
③ Kho rotor dynamic tshuav nyiaj li cas;
④ Ncaj cov ncej;
⑤ Kho qhov sib tshooj hlau cores;
⑥ Recalibrate kom ua raws li cov cai;
⑦ Kho lub kiv cua, qhov sib npaug, thiab kho nws cov duab geometric;
⑧ Txhawb nqa;
⑨ Tighten lub hauv paus screws;
⑩ Kho lub rotor winding; Kho lub stator winding.
3, Tom qab tau txais lub zog, lub cev muaj zog tsis tuaj yeem tig, tab sis tsis muaj suab nrov txawv txav, tsw ntxhiab, lossis haus luam yeeb.
1. Ua rau ua haujlwm tsis zoo
① Fais fab mov tsis txuas (tsawg kawg yog ob theem tsis txuas);
② Lub fuse yog tshuab (tsawg kawg yog ob theem yog tshuab);
③ Lub overcurrent relay yog teem me me heev;
④ Tswj cov cuab yeej thaiv qhov yuam kev.
2. Kev daws teeb meem
① Txheeb xyuas seb puas muaj cov ntsiab lus tawg ntawm lub hwj chim hloov hluav taws xob, fuse, thiab lub thawv sib txuas, thiab kho lawv;
② Txheeb xyuas tus qauv fuse, ua rau melting, thiab hloov nrog lub fuse tshiab;
③ Kho tus nqi relay kom phim nrog lub cev muaj zog;
④ Kev xaim raug raug.
4, Tom qab tau txais lub zog, lub cev muaj zog tsis tig thiab lub fuse hlawv tawm
1. Ua rau ua haujlwm tsis zoo
① Ib theem fais fab mov ploj lawm, los yog cov kauj vab qhuav ruaj khov txuas nrog rau qhov sib txawv;
② luv Circuit Court ntawm stator windings;
③ Grounding ntawm stator winding;
④ Stator winding thaiv qhov yuam kev;
⑤ Cov ntu ntu ntawm lub fuse me dhau;
⑥ Short circuit lossis grounding ntawm fais fab kab.
2. Kev daws teeb meem
① Txheeb xyuas yog tias ib theem ntawm cov riam hloov tsis raug kaw, lossis yog tias ib theem ntawm lub zog hluav taws xob raug txiav; Tshem tawm qhov rov qab txuas tsis raug;
② Txheeb xyuas qhov taw tes luv luv thiab kho nws;
③ Tshem tawm hauv av;
④ Txheeb xyuas thiab kho cov kev sib txuas tsis raug;
⑤ Hloov lub fuse;
⑥ Tshem tawm cov ntsiab lus hauv av.
5, Muaj lub suab nrov thaum lub cev muaj zog tsis tig tom qab tau txais lub zog
1. Ua rau ua haujlwm tsis zoo
① Qhib Circuit Court nyob rau hauv stator thiab rotor windings (ib theem disconnected) los yog poob ntawm lub hwj chim nyob rau hauv ib theem ntawm lub hwj chim mov;
② Kev sib txuas tsis raug ntawm qhov pib thiab qhov kawg ntawm cov hlau lead winding lossis thim rov qab kev sib txuas hauv qhov winding;
③ xoob hluav taws xob Circuit Court tiv tauj nrog kev tiv thaiv siab;
④ Ntau lub cev muaj zog load lossis rotor jamming;
⑤ Lub hwj chim mov voltage tsawg dhau;
⑥ Cov tshuab hluav taws xob me me tau sib sau nruj dhau los yog cov roj hauv cov bearings nyuaj dhau;
⑦ Cov kabmob yog daig.
2. Kev daws teeb meem
① Txheeb xyuas qhov chaw tawg thiab kho lawv;
② Txheeb xyuas qhov polarity ntawm winding; Txiav txim siab seb qhov kawg ntawm qhov winding puas yog;
③ Tighten lub xoob xaim screws, siv ib lub multimeter los xyuas seb txhua qhov sib koom ua ke tsis muaj tseeb, thiab kho nws;
④ Txo cov load lossis kuaj thiab tshem tawm cov khoom tsis raug;
⑤ Kev tshuaj xyuas tseem ua raws li cov kev cai Δ Txoj kev sib txuas tau yuam kev raws li Y; Yog qhov hluav taws xob poob siab dhau lawm vim yog lub zog hluav taws xob xaim nyias dhau lawm, thiab yuav tsum tau kho;
⑥ Reassemble kom nws hloov tau; Hloov nrog cov roj uas tsim nyog;
⑦ Kho cov kabmob.
6, Tsis muaj kev thauj khoom tam sim no ntawm lub cev muaj zog tsis sib npaug, thiab muaj qhov sib txawv loj ntawm peb yam khoom
1. Ua rau ua haujlwm tsis zoo
① Thaum rewinding, tus naj npawb ntawm lem hauv stator peb-theem winding tsis sib npaug;
② Kev sib txuas tsis raug ntawm winding xaus;
③ Fais fab mov voltage tsis txaus;
④ Lub winding muaj faults xws li inter tig luv Circuit Court thiab coil rov qab kev twb kev txuas.
2. Kev daws teeb meem
① Rewind lub stator winding;
② Tshawb xyuas thiab kho kom raug;
③ Ntsuas qhov hluav taws xob qhov hluav taws xob thiab sim tshem tawm qhov tsis sib xws;
④ Quenching winding txhaum.
7, Thaum lub cev muaj zog yog unloaded los yog overloaded, lub ammeter pointer yuav tsis ruaj khov thiab viav vias
1. Ua rau ua haujlwm tsis zoo
① Vuam lossis tawg ntawm tawb rotor qhia tuav;
② Winding rotor txhaum (ib theem qhib Circuit Court) los yog kev sib cuag tsis zoo ntawm txhuam thiab cov khoom siv lub nplhaib luv luv.
2. Kev daws teeb meem
① Txheeb xyuas cov kab tawg thiab kho lossis hloov cov rotors;
② Tshawb xyuas lub rotor winding circuit thiab kho nws.
8, Tsis muaj kev thauj khoom tam sim no ntawm lub cev muaj zog yog sib npaug, tab sis tus nqi loj
1. Ua rau ua haujlwm tsis zoo
① Thaum kho, tus naj npawb ntawm cov lem hauv stator winding raug txo ntau dhau;
② Lub hwj huam mov voltage siab dhau lawm;
③ Y-txuas lub cev muaj zog tau yuam kev raws li Δ;
④ Thaum lub sij hawm sib dhos lub cev muaj zog, lub rotor yog thim rov qab, ua rau cov tub ntxhais stator tsis zoo thiab txo qhov ntev;
⑤ Ntau dhau lossis tsis sib xws ntawm huab cua;
⑥ Kev siv tsis raug ntawm qhov kub dismantling txoj kev thaum lub sij hawm loj overhaul thiab dismantling ntawm qub windings ua rau hlawv ntawm cov tub ntxhais hlau.
2. Kev daws teeb meem
① Rewind lub stator winding thiab rov ua kom raug tus lej hloov;
② Sim kho qhov ntsuas hluav taws xob;
③ Hloov rau Y;
④ Rov ua dua;
⑤ Hloov lub rotor tshiab lossis kho qhov sib txawv ntawm huab cua;
⑥ Kho cov tub ntxhais hlau los yog rov xam cov winding, thiab ua kom cov lem kom tsim nyog.
9, Lub cev muaj zog yog qhov nyuaj rau pib, thiab ntawm qhov ntsuas load, qhov ceev yog qis dua qhov ntsuas ceev
1. Ua rau ua haujlwm tsis zoo
① Lub hwj chim mov voltage tsawg dhau;
② Δ Lub cev muaj zog txuas nrog Y;
③ vuam lossis tawg ntawm lub tawb rotor;
④ Kev sib txuas tsis raug lossis thim rov qab ntawm cov coils hauv zos hauv stator thiab rotor;
⑤ Kev hloov pauv ntau dhau thaum kho lub cev muaj zog;
⑥ Lub cev muaj zog tshaj.
2. Kev daws teeb meem
① Ntsuas lub hwj huam mov voltage thiab sim txhim kho nws;
② Kho txoj kev sib txuas;
③ Txheeb xyuas qhov qhib welds thiab qhov tawg thiab kho lawv;
④ Txheeb xyuas thiab kho qhov tsis raug;
⑤ Rov qab cov lej raug raug;
⑥ Txo cov load.
10, Hluav taws xob lub cev muaj zog overheating lossis txawm haus luam yeeb
1. Ua rau ua haujlwm tsis zoo
① Cov khoom siv hluav taws xob ntau dhau ua rau cov cua sov ntawm cov tub ntxhais hlau;
② Yog hais tias lub hwj chim mov voltage tsawg dhau thiab lub cev muaj zog khiav nyob rau hauv rated load, ntau tshaj tam sim no yuav ua rau lub winding kom sov;
③ Kev siv tsis raug ntawm txoj kev kub dismantling thaum kho thiab dismantling windings tuaj yeem hlawv cov tub ntxhais hlau;
④ Kev sib txhuam ntawm stator thiab rotor hlau cores;
⑤ Lub cev muaj zog tshaj lossis nquag pib;
⑥ Cage rotor tawg tuav;
⑦ Tsav theem poob, ua haujlwm ob theem;
⑧ Tsis txaus impregnation ntawm qhov ruaj winding tom qab rewinding;
⑨ Qhov saum npoo ntawm lub tshuab hluav taws xob yog qias neeg lossis lub qhov cua ntawm lub qhov hluav taws xob thaiv vim qhov kub thiab txias;
⑩ Lub cev muaj zog kiv cua ua haujlwm tsis zoo, qhov cua tsis zoo; Fault nyob rau hauv stator winding (luv luv Circuit Court ntawm theem thiab lem; internal kev twb kev txuas yuam kev nyob rau hauv stator winding).
2. Kev daws teeb meem
① Txo cov hluav taws xob hluav taws xob (xws li kho tus kais ntawm lub zog hloov hluav taws xob), yog lub cev muaj zog Y Δ Yog tias qhov kev sib txuas yog tshwm sim los ntawm qhov yuam kev, kev sib txuas yuav tsum raug kho;
② Ua kom lub zog hluav taws xob ntau dua lossis hloov cov khoom siv hluav taws xob tuab;
③ Kho cov tub ntxhais hlau thiab tshem tawm qhov yuam kev;
④ Tshem tawm cov ntsiab lus sib txhuam (kho cov pa tawm los yog tsoo lub rotor);
⑤ Load txo; Tswj pib raws li lub sijhawm teev tseg;
⑥ Tshawb xyuas thiab tshem tawm cov rotor winding faults;
⑦ Rov ua haujlwm peb theem;
⑧ Txais cov txheej txheem impregnation theem nrab thiab lub tshuab nqus tsev impregnation;
⑨ Ntxuav lub cev muaj zog, txhim kho qhov kub thiab txias, thiab txais kev ntsuas cua txias;
⑩ Tshawb xyuas thiab kho lub kiv cua, hloov nws yog tias tsim nyog; Kho lub stator winding thiab tshem tawm qhov txhaum.
11, Overheating ntawm lub cev muaj zog bearings
1. Ua rau ua haujlwm tsis zoo
① Cov roj lubricating ntau dhau lossis tsis txaus;
② Cov roj tsis zoo nrog impurities;
③ Tsis tsim nyog ntawm cov kabmob nrog cov ntawv sau los yog lub kaus mom kawg (ntau dhau los yog nruj heev)
④ Eccentricity ntawm cov kabmob puab lub qhov, rub tawm ntawm lub ncej;
⑤ Lub hau kawg lub cev muaj zog lossis cov kabmob npog tsis yog ntsia ncaj nraim;
⑥ Lub coupling ntawm lub cev muaj zog thiab lub load tsis calibrated, los yog txoj siv yog nruj heev;
⑦ Kev tshem tawm ntau dhau lossis tsis txaus;
⑧ Lub cev muaj zog yog khoov.
2. Kev daws teeb meem
① Ntxiv roj lubricating raws li kev cai (1/3-2/3 ntawm lub ntim);
② Hloov cov roj lubricating huv;
③ Yog tias nws xoob dhau, nws tuaj yeem kho nrog cov nplaum. Yog tias nws nruj heev, muab nws tso rau hauv lub tsheb thiab zom lub qhov hauv lub qhov ntawm lub caj dab los yog lub hau kawg kom nws haum;
④ Kho cov kabmob npog thiab tshem tawm cov ntsiab lus sib txhuam;
⑤ Rov ua dua;
⑥ Recalibrate thiab kho txoj siv tawv;
⑦ Hloov nrog cov kabmob tshiab;
⑧ Kho lub cav ncej lossis hloov lub rotor.
