Lub reactance tshwm sim los ntawm luv luv network ntawm loj thiab nruab nrab submerged arc furnaces account rau txog 70% ntawm kev khiav hauj lwm reactance ntawm lub cua sov rauv.Lub submerged arc furnace luv luv network yog hais txog lub ntsiab lus dav dav rau ntau hom kev tsis tshua muaj siab thiab cov hluav taws xob siab tam sim no los ntawm cov pab pawg qis qhov hluav taws xob kawg ntawm lub tshuab hluav taws xob rau hluav taws xob mus rau theem hluav taws xob.Txawm hais tias qhov ntev ntawm lub net luv ntawm lub submerged arc rauv tsis loj, lub luv luv net resistors thiab reactances muaj kev cuam tshuam zoo rau cov khoom siv ntawm submerged arc rauv.Vim nws cov qauv cumbersome, tam sim no dhau los ntawm nws mus txog pua pua txhiab tus amperes.Vim tias qhov luv luv-circuit reactance tus nqi feem ntau yog 3 mus rau 6 npaug ntawm cov resistor, qhov luv-circuit reactance feem ntau txiav txim siab qhov ua tau zoo, lub zog thiab lub zog noj theem ntawm submerged arc rauv.
Txoj kev them nyiaj ntau ntawm phau ntawv yog txuas rau lub txhab nyiaj them nyiaj capacitor mus rau lub tsheb npav high-voltage ntawm thawj sab ntawm submerged arc rauv transformer, uas yog, high-voltage them.Txij li cov txiaj ntsig tau txais txiaj ntsig tsuas yog tau txais txiaj ntsig los ntawm txoj kab ua ntej nkag mus thiab lub zog kab hluav taws xob sab ntawm lub zog hluav taws xob, lub zog hluav taws xob tuaj yeem ua tau raws li qhov yuav tsum tau muaj ntsig txog lub zog ntawm cov kab thauj khoom, tab sis tsis tuaj yeem them nyiaj rau qhov hloov pauv windings. , luv network, thiab electrodes ntawm kuv lub qhov cub.Lub zog reactive ntawm tag nrho cov theem nrab-sab qis-voltage thiab high-tam sim no circuits, uas yog, cov khoom siv tsis tuaj yeem tau txais txiaj ntsig los ntawm kev nce hauv kev tsim khoom ntawm cov khoom siv hluav taws xob thiab kev txo qis hauv kev siv hluav taws xob thiab kev siv kuv.
Feem ntau, muab cov kev ntsuas kev sib haum xeeb thiab kev sib haum xeeb sib haum xeeb tuaj yeem ua ke los tsim cov txiaj ntsig zoo sib haum xeeb.Rau harmonic qhov chaw loads nrog lub hwj chim loj (xws li zaus furnaces, inverters, thiab lwm yam), harmonic countermeasures yuav siv tau rau positioning harmonic countermeasures, txo cov harmonic tam sim no txhaj rau hauv daim phiaj.Lub zog me me thiab cov khoom tsis sib thooj tsis sib xws tuaj yeem tswj tau zoo ib yam ntawm lub npav.Hongyan APF nquag lim tuaj yeem siv, thiab kev tswj hwm kev sib haum xeeb kuj siv tau.
Lub submerged arc rauv yog lub zog siv hluav taws xob ua kom sov nrog cov yam ntxwv ntawm cov hluav taws xob hluav taws xob hluav taws xob.Lub zog qhov tseem ceeb yog txiav txim siab los ntawm qhov arc thiab tsis kam R hauv qhov cub thiab tus nqi ntawm qhov tsis kam R thiab reactance X nyob rau hauv lub hwj chim mov Circuit Court (xws li transformers, luv-circuit nets, collector rings, conductive puab tsaig thiab electrodes).
cosφ = (r # + r) / tsis kam x tus nqi ntawm resistor r feem ntau tsis hloov thaum lub submerged arc rauv nyob rau hauv lub lag luam, lawv nyob ntawm tus tsim thiab installation ntawm luv luv network thiab hluav taws xob theem layout.Qhov kev tiv thaiv R muaj feem xyuam rau qhov kev siv tam sim no ntawm qhov luv-circuit upstream Cheebtsam thaum lub sijhawm ua haujlwm, thiab qhov kev hloov pauv tsis loj, tab sis qhov tsis kam R yog qhov tseem ceeb hauv kev txiav txim siab lub zog ntawm lub submerged arc rauv thaum lub sijhawm ua haujlwm. .
Txij li thaum lub submerged arc rauv muaj zog tsis muaj zog tshaj lwm yam hluav taws xob smelting rauv, nws lub hwj chim tseem ceeb kuj txo raws li.Ntxiv rau qhov ntuj tsim hluav taws xob ntawm lub tshuab hluav taws xob me me mus txog siab dua 0.9, lub zog hluav taws xob ntawm lub cub tawg loj nrog lub peev xwm siab tshaj 10000KVA yog tag nrho qis dua 0.9, thiab qhov loj dua lub peev xwm ntawm lub cub tawg, lub zog qis dua. yam.Qhov no yog vim qhov loj inductive load ntawm submerged arc furnace transformer nyob rau hauv ib qho chaw loj, ntev lub network ntev, thiab qhov hnyav dua cov khoom pov tseg tso rau hauv lub cub tawg, uas ua rau kom cov reactance ntawm lub luv luv network, yog li txo lub hwj chim. ntawm submerged arc rauv.
Txhawm rau txo qis kev siv hluav taws xob thiab txhim kho cov khoom siv hluav taws xob zoo, Lub Chaw Pabcuam Hluav Taws Xob tau hais tias lub zog ntawm lub tuam txhab hluav taws xob yuav tsum nyob ib puag ncig 0.9, txwv tsis pub lub tuam txhab hluav taws xob yuav raug nplua loj.Tsis tas li ntawd, lub zog qis kuj tseem yuav txo qis cov kab hluav taws xob nkag ntawm lub tshuab hluav taws xob submerged arc, uas yuav ua mob rau cov calcium carbide smelter.Yog li ntawd, tam sim no, muaj peev xwm loj submerged arc furnaces hauv tsev thiab txawv teb chaws yuav tsum tau nruab reactive fais fab nyiaj pab kiag li lawm los txhim kho lub hwj chim ntawm submerged arc furnaces.
Tsawg voltage lim nyiaj them
1. Txoj Cai
Tsawg-voltage nyiaj them yog ib qho khoom siv tsis zoo uas siv cov cuab yeej siv niaj hnub tswj thiab cov cuab yeej siv hluav taws xob luv luv los txuas lub peev xwm loj, muaj peev xwm tam sim no ultra-low voltage fais fab tuag mus rau theem nrab ntawm qhov cub tawg.Cov cuab yeej no tsis yog tsuas yog qhov ua tau zoo tshaj plaws ntawm lub hauv paus ntsiab lus ntawm reactive fais fab nyiaj them, tab sis kuj tuaj yeem ua rau lub zog ntawm lub tshuab hluav taws xob ua haujlwm ntawm tus nqi siab dua, txo qis reactive zog noj ntawm lub luv luv network thiab thawj sab, thiab tshem tawm cov thib peb, tsib thiab xya harmonics.Sib npaug ntawm peb-theem tso zis fais fab kom nce lub peev xwm ntawm lub transformer.Lub hom phiaj ntawm kev tswj hwm yog kom txo qis qhov tsis sib npaug ntawm peb-theem fais fab thiab ua kom muaj zog peb-theem sib npaug.Nthuav lub lauj kaub clamp, mloog zoo rau cov cua sov, ua kom qhov kub thiab txias ntawm qhov cub tawg, thiab ua kom cov tshuaj tiv thaiv sai, thiaj li ua tiav lub hom phiaj ntawm kev txhim kho cov khoom zoo, txo kev noj, thiab nce ntau lawm.
Cov cuab yeej siv no siv cov txheej txheem kev paub tab ntawm qhov chaw them nyiaj thev naus laus zis mus rau theem nrab qis-voltage sab ntawm kuv lub qhov cub.Lub zog reactive generated los ntawm lub capacitor dhau los ntawm cov kab luv luv, ib feem ntawm cov uas yog absorbed los ntawm mine furnace transformer los ntawm lub system, thiab lwm yam compensates rau lub reactive zog ntawm mine furnace transformer, luv luv network thiab electrodes.Lub zog poob ua rau kom lub zog nkag mus rau hauv lub cub tawg.Nyob rau tib lub sijhawm, cov nyiaj them sib cais tau raug coj los ua kom lub zog ua haujlwm ntawm peb-theem electrodes ntawm submerged arc rauv sib npaug, txhawm rau txhim kho lub zog, txo qhov tsis sib npaug ntawm peb-theem fais fab, thiab txhim kho cov khoom tsim. qhov ntsuas.
2. Daim ntawv thov kev them nyiaj tsawg voltage
Nyob rau hauv xyoo tas los no, vim qhov kev txhim kho me ntsis ntawm cov cuab yeej siv hluav taws xob tsawg, cov qauv tsim tau ua ntau dua thiab zoo meej, thiab qhov ntim tau txo qis heev.Submerged arc furnace manufacturers kuj tau kawm txog nws cov kev ua tau zoo hauv kev txhim kho cov txiaj ntsig kev lag luam ntawm submerged arc furnaces.Cov khoom siv hluav taws xob tsawg tsawg tau siv dav hauv Submerged arc rauv transformer.
Cov kev daws teeb meem xaiv los ntawm:
npaj 1
Siv high-voltage lim nyiaj them (qhov xwm txheej no yog kev them nyiaj ntau, tab sis qhov tshwm sim tiag tiag tsis ua raws li cov qauv tsim).
Scenario 2
Nyob rau sab qis-voltage, dynamic peb-theem fractional them nyiaj lim dej tau txais yuav.Tom qab cov cuab yeej lim tau muab tso rau hauv kev ua haujlwm, lub zog ua haujlwm ntawm peb-theem electrodes ntawm submerged arc rauv yog sib npaug, txhawm rau txhim kho lub zog, txo qhov tsis sib npaug ntawm peb-theem fais fab, thiab txhim kho cov khoom lag luam.
Lub sij hawm xa tuaj: Plaub Hlis-13-2023