Magnetizing txoj kev ntawm cov hlau nplaum ruaj khov
Jun 08, 2023
Magnetizing txoj kev ntawm cov hlau nplaum ruaj khov
Qhov sib nqus ruaj khov ntawm cov hlau nplaum ruaj khov kev ua haujlwm sib nqus yog ib qho tseem ceeb tshaj plaws ntawm kev sib nqus kev ua tau zoo los ntsuas qhov zoo ntawm cov hlau nplaum ruaj khov. Nws yog qhia los ntawm nws tus nqi demagnetization, uas yog, qhov sib nqus induction decay tus nqi ntawm cov hlau nplaum ruaj khov. Vim tias qhov kev ua tau zoo sib nqus yuav tsis nyob mus ib txhis, nws yuav tsim kev sib nqus induction attenuation nrog rau sab hauv thiab sab nraud. Nws lub hauv paus ua rau muaj xws li sib nqus hloov pauv los ntawm kev hloov pauv hauv cov qauv ntawm cov khoom sib nqus thiab cov teebmeem sib nqus tom qab magnetization; nws sab nraud ua rau muaj xws li sib nqus hloov pauv los ntawm qhov kub thiab txias, cuam tshuam cov hlau nplaum, kev ntxhov siab, kev sib cuag nrog lub cev muaj zog sib nqus, thiab cov teebmeem hluav taws xob. yog qhov tseem ceeb.
Thaum cov hlau nplaum ruaj khov pab exciter yog demagnetized, nws yuav tsum tau re-magnetized. Muaj ob hom kev sib nqus magnetization: DC pulse magnetization method thiab DC fais fab tuag magnetization txoj kev.
1. DC pulse magnetization txoj kev
Rau kev txij nkawm vim tsis muaj hlau nplaum, ntawm txhua tus ncej hlau nplaum ntawm lub rotor disassembled, siv cov hlau nplaum yas uas muaj qhov sib txawv ntawm qhov tsis pub tsawg tshaj 2 hli 2 los ua kom lub zog hlau nplaum. Ob lub taub hau winding tau kos tawm, thiab tom qab tag nrho lub tshuab tau sib sau ua ke, nws tuaj yeem sib nqus los ntawm DC pulse method. Tom qab magnetization, disassemble cov hlau nplaum ruaj khov auxiliary exciter dua kom rub tawm lub rotor (lub rotor yuav tsum tau rub tawm los yog muab tso rau hauv lub rotor nrog cov cuab yeej tshwj xeeb rau cov hluav taws xob tiv thaiv kev puas tsuaj rau lub cev muaj zog thiab tib neeg raug mob), tshem tawm cov hlau nplaum, thiab Tom qab ntawd rov ntxig lub rotor rau hauv stator. Sub-core rau kev sib dhos tag nrho.
2. DC lub zog tsim hluav taws xob magnetization txoj kev
Tom qab tag nrho lub tshuab tau sib sau ua ke, DC generator lossis AC controllable rectification device yog siv rau kev sib nqus. Lub magnetizing voltage yog 60V, lub magnetizing tam sim no yog hais txog 500A, thiab lub sij hawm magnetizing yog li ntawm 2 mus rau 3 vib nas this. Magnetization yuav tsum stabilized tom qab magnetization. Lub ntiaj teb tsis tshua muaj cov khoom siv hlau nplaum ruaj khov sintered NdFeB cov hlau nplaum ruaj khov tuaj yeem ruaj khov los ntawm ntau tshaj tsib lub voj voog luv luv; Cov khoom siv hlau nplaum ruaj khov Alnico 5 cov hlau nplaum ruaj khov tuaj yeem ruaj khov los ntawm huab cua ob zaug.
DC magnetizing txoj kev yog ib tug kuj yooj yim magnetizing txoj kev, uas yuav siv tau nyob rau hauv cov kev khiav hauj lwm tej yam kev mob ntawm lub Hoobkas thiab lub installation site, tsuav yog lub magnetizing DC fais fab mov txuas nrog stator winding ntawm cov hlau nplaum mus tas li auxiliary exciter rau magnetize.
