Kev ncab qhuav
Cov roj ntws L = [(10-12) d] L / feeb
Qhov ntev ntawm cov hlau tawm ntawm lub qhov hluav taws xob conductive yog qhov ntev ntawm qhov ntev ntawm cov hlau qhuav. Cov mis empirical dav dav yog 10-15 npaug ntawm txoj kab uas hla ntawm cov hlau L = (10-15) d. Thaum tus qauv loj, nws loj dua me ntsis. Cov lus qhia me me, me me dua.
Kev ncab qhuav ntev dhau: Thaum qhov ntev ntawm cov hlau vuam ntev dhau, qhov kub ntawm cov hlau vuam ntau dua, qhov ceev ntawm cov hlau vuam yaj sai dua, uas tuaj yeem ua rau cov hlau vuam sib xyaw ua ntu zus, txaws, yaj tob, thiab tsis ruaj khov arc combustion. Tib lub sijhawm, cov nyhuv tiv thaiv roj tsis zoo.
Qhov ncab qhuav luv dhau: yooj yim hlawv lub qhov hluav taws xob conductive. Tib lub sijhawm, lub qhov hluav taws xob conductive yooj yim rau clamp hlau thaum nws kub. Cov dej txaws feem ntau yuav txhaws lub qhov hluav taws xob thiab yaj tob.
Rooj 1 Kev sib raug zoo ntawm kev ncua tam sim no thiab qhuav
| Vuam tam sim no (A) | ≤200A | 200-350A | 350-500A |
| Qhuav elongation (hli) | 10-15 hli | 15-20 hli | 20-25 hli |
Cov roj ntws
Cov roj ntws L = [(10-12) d] L / feeb
Loj dhau: tsim kom muaj kev kub ntxhov, ua rau huab cua nkag thiab cov qhov hws, tshwj xeeb tshaj yog rau cov khoom siv uas rhiab heev rau roj (xws li cov hlau txhuas, cov hlau magnesium, thiab lwm yam, uas feem ntau yog cov qhov hws sab hauv)
Me dhau: kev tiv thaiv roj tsis zoo (koj tuaj yeem xa mus rau cov xwm txheej txwv, uas txhais tau tias tsis muaj roj tiv thaiv, thiab cov qhov hws zoo li honeycomb feem ntau tshwm sim).
Qhov cua ceev tsis cuam tshuam thaum ≤2m / s.
Yuav tsum ntsuas thaum cua ceev yog ≥2m / s.
① Ua kom cov roj ntws nrawm dua.
② Ua cov kev ntsuas tiv thaiv cua.
Lus Cim: Thaum muaj cua xau, cov qhov cua yuav tshwm sim ntawm qhov vuam. Qhov chaw xau cua yuav tsum tau daws thiab tsis tuaj yeem ntxiv los ntawm kev nce tus nqi ntws. Tsis muaj txoj hauv kev los kho cov qhov cua yam tsis tau tshem tawm lawv. Nws tsuas yog yuav ua rau vuam ntau dua. Ntau ntau.
Lub zog arc
Thaum cov phaj tuab sib txawv, qhov chaw sib txawv, cov lus qhia sib txawv, thiab cov xov hlau vuam sib txawv, cov zog arc sib txawv raug xaiv.
Loj dhau: lub arc tawv, lub splash loj.
Me dhau: arc mos, me me txaws.
Lub zog siab
Nruj dhau: Cov hlau vuam yog deformed, cov hlau pub tsis ruaj khov, thiab nws yooj yim ua rau cov hlau jams thiab ua rau splashing nce.
Xoob dhau: Cov hlau vuam raug plam, cov hlau raug xa qeeb, qhov vuam tsis ruaj khov, thiab nws tseem yuav ua rau muaj dej txaws.
Tam sim no, qhov hluav taws xob
Cov mis empirical rau kev sib raug zoo ntawm tam sim no thiab voltage ntawm roj-tiv thaiv vuam: U = 14 + 0.05I ± 2
Yuav tsum xaiv qhov hluav taws xob vuam raws li qhov tuab ntawm cov khoom siv hauv paus, cov duab sib koom ua ke thiab txoj kab uas hla ntawm cov hlau. Thaum lub sijhawm luv luv hloov pauv, sim xaiv qhov hluav taws xob me me thaum xyuas kom meej tias nkag mus, vim tias thaum qhov hluav taws xob loj dhau, nws yooj yim ua rau lub pas dej yaj dov, tsis yog nws tsuas yog txaws loj xwb, tab sis cov pwm kuj tsis zoo heev.
Lub zog hluav taws xob ntawm lub vuam yuav tsum sib haum zoo nrog lub zog tam sim no. Lub zog hluav taws xob ntawm lub vuam siab dhau los yog qis dhau, uas yuav ua rau muaj dej txaws. Lub zog hluav taws xob ntawm lub vuam yuav tsum nce ntxiv nrog rau qhov nce ntawm lub zog hluav taws xob ntawm lub vuam thiab yuav tsum txo qis nrog rau qhov txo qis ntawm lub zog hluav taws xob ntawm lub vuam. Lub zog hluav taws xob zoo tshaj plaws ntawm lub vuam feem ntau yog nyob nruab nrab ntawm 1-2V, yog li lub zog hluav taws xob ntawm lub vuam yuav tsum tau kho kom zoo.
Qhov tam sim no loj dhau: qhov ntev ntawm lub arc luv, qhov dej txaws loj, qhov kev xav ntawm sab saum toj tes, qhov siab seem loj dhau, thiab ob sab tsis sib xyaw zoo.
Lub zog hluav taws xob siab dhau lawm: lub arc ntev, qhov txaws me ntsis loj dua, tam sim no tsis ruaj khov, qhov siab seem me dhau, qhov vuam dav, thiab lub arc yooj yim hlawv.
Cov teebmeem ntawm kev vuam ceev ceev rau kev vuam
Qhov ceev ntawm kev vuam muaj feem cuam tshuam tseem ceeb rau qhov zoo ntawm sab hauv thiab qhov tsos ntawm qhov vuam. Thaum lub zog hluav taws xob tam sim no tas li:
Qhov ceev ntawm kev vuam ceev dhau lawm: qhov tob ntawm kev yaj, qhov dav ntawm kev yaj, thiab qhov siab seem raug txo qis, tsim cov hlaws vuam convex lossis hump, thiab cov ntiv taw tom cov nqaij. Thaum qhov ceev ntawm kev vuam ceev dhau lawm, cov nyhuv tiv thaiv roj yuav raug puas tsuaj thiab cov qhov hws yooj yim tsim.
Tib lub sijhawm, qhov txias ntawm cov hlau vuam yuav raug ua kom nrawm dua, yog li ntawd txo qhov plasticity thiab toughness ntawm cov hlau vuam. Nws tseem yuav ua rau muaj ntug tshwm sim hauv nruab nrab ntawm qhov vuam, ua rau cov pwm tsis zoo.
Qhov ceev ntawm kev vuam qeeb dhau lawm: lub pas dej ua kom loj dua, lub hlaws vuam dav dua, thiab cov ntiv taw vuam puv nkaus. Cov roj hauv lub pas dej ua kom yooj yim tso tawm vim yog qhov ceev ntawm kev vuam qeeb. Cov qauv hlau ntawm qhov vuam tuab lossis hlawv dhau vim yog overheating.
Thaum xaiv cov txheej txheem vuam, cov xwm txheej hauv qab no yuav tsum tau ua raws li: qhov vuam zoo nkauj thiab tsis muaj qhov tsis zoo xws li hlawv, txiav hauv qab, qhov hws, tawg, thiab lwm yam. Qhov tob yaj yog tswj nyob rau hauv qhov ntau thiab tsawg tsim nyog. Cov txheej txheem vuam ruaj khov thiab qhov dej txaws me me. Muaj lub suab nrov thaum vuam. Tib lub sijhawm, yuav tsum ua tiav qhov tsim tau siab tshaj plaws.
Lub sijhawm tshaj tawm: Lub Peb Hlis-10-2025