Transformers yog cov khoom siv hluav taws xob tseem ceeb tshaj plaws hauv lub zog hluav taws xob, thiab lawv feem ntau khiav mus ntev. Txhawm rau kom muaj kev nyab xeeb thiab kev lag luam ntawm transformers thiab txhim kho kev ntseeg tau ntawm kev ua haujlwm, ob lossis ntau dua transformers feem ntau ua haujlwm sib luag.
Kev ua haujlwm sib luag ntawm cov tshuab hloov pauv yog cov txheej txheem kev suav nyuaj, thiab nws cov ntsiab lus yog ua kom tag nrho cov peev txheej ntawm lub tshuab hloov pauv. Tab sis thaum lub transformer yog khiav nyob rau hauv parallel, nws tsis yog yooj yim mus cuag lub thib ob sab ua ke. Ua ntej kev ua haujlwm sib luag ntawm cov transformers, lub nameplate ntawm lub transformer yuav tsum tau ua tib zoo xyuas kom pom tias nws ua tau raws li cov hauv paus ntsiab lus rau kev ua haujlwm sib npaug. Cov xwm txheej rau kev ua haujlwm sib luag ntawm transformers yog:
1. Cov kab hluav taws xob yog tib yam.
2, qhov kev hloov pauv yog tib yam, thiab qhov sib txawv tsis tshaj ± 0.5%.
3. Qhov hluav taws xob luv luv yog tib yam, thiab qhov sib txawv tsis tshaj ± 10%.
4. Lub peev xwm piv ntawm ob lub transformers yuav tsum tsis txhob ntau tshaj 3: 1.
Kev ua haujlwm sib npaug ntawm cov hloov pauv yog kev ua haujlwm sib npaug ntawm" cov khoom siv hluav taws xob", thiab nws txoj kev nyuaj yog ntau dua li kev ua haujlwm sib luag ntawm cov khoom thauj. Yog hais tias lub transformers tsis ua raws li cov kev cai nyob rau hauv parallel thiab raug yuam kev nyob rau hauv parallel, ib tug loj" lub voj voog tam sim no" yuav tshwm sim ntawm ob lub transformers, uas yuav tsis tsuas nkim hluav taws xob hluav taws xob, tab sis kuj coj kev nyab xeeb kev nyab xeeb zoo.
Tsis tas li ntawd, thaum lub transformers ua hauj lwm nyob rau hauv parallel, vim hais tias lawv impedances yog kev cob cog rua nyob rau hauv parallel, tag nrho impedance yuav raug txo, thiab lub luv-circuit tam sim no ntawm lub system yuav zoo heev. Cov kev xav tau siab dua tau muab tso rau pem hauv ntej rau kev xaiv cov khoom siv hluav taws xob sab saud. Qhov teeb meem no yog nyob rau hauv tus tsim Sijhawm yuav tsum tau xav txog.
Yog hais tias tus thawj system tsis khiav nyob rau hauv parallel, piv txwv li, lub hwj chim system ntawm cov lag luam feem ntau yog ib leeg-tsheb npav segmented thaiv. Feem ntau, los ntawm qib kev tswj hwm cov cuab yeej, thaum ob lub qhov hluav taws xob nkag H2 thiab H3 ob qho tib si raug kaw, ntu Hloov H1 tsis raug tso cai raug kaw, thiab nws feem ntau teev nyob rau hauv daim ntawv cog lus fais fab uas tau kos npe los ntawm lub tuam txhab thiab lub tuam txhab muab hluav taws xob. . Tab sis los ntawm ib qho kev pom zoo, thaum ob qho kev hloov pauv H2 thiab H3 raug kaw, ntu hloov H1 tuaj yeem raug kaw. Qhov kev ua haujlwm no paub txog kev hloov pauv tsis muaj kev cuam tshuam ntawm kev khiav haujlwm, tab sis peb lub keyboards raug kaw tib lub sijhawm Lub sijhawm yuav tsum tau luv kom ntau li ntau tau. Tom qab lees paub qhov ua tiav tiav ntawm H1, H2 lossis H3 yuav tsum qhib kom sai li sai tau.
Tau kawg, txhawm rau ua kom lub tshuab hloov pauv muaj kev nyab xeeb thiab kev lag luam thiab txhim kho kev ntseeg tau ntawm cov khoom siv hluav taws xob, ob lossis ntau dua transformers feem ntau siv rau kev ua haujlwm sib luag. Qhov tseem ceeb ntawm kev ua haujlwm sib luag ntawm transformers nyob hauv:
1. Thaum lub tshuab hloov pauv tsis ua haujlwm, qhov sib txawv ntawm kev tiv thaiv ntawm lub tshuab hloov pauv tau qhib, thiab qhov siab thiab qis voltage sab hloov ntawm lub transformer yuav raug tripped mus txiav tawm lub transformer, thiab lwm yam transformers uas khiav nyob rau hauv parallel muaj peev xwm mus ua hauj lwm los xyuas kom meej lub continuation. ntawm cov neeg siv' hluav taws xob.
2. Thaum lub transformer tab tom nrhiav kev tiv thaiv los yog kev saib xyuas, nws tuaj yeem raug tshem tawm los ntawm cov kab sib txuas, thiab qhov seem ntawm cov transformers yuav dais tag nrho cov hluav taws xob load, uas tsis tsuas yog ua kom cov kev npaj kho ntawm lub transformer, tab sis kuj xyuas kom meej uninterrupted. fais fab mov ntawm lub load, uas txhim kho kev ntseeg tau ntawm qhov system fais fab mov.
3. Txhim kho lub peev xwm ntawm daim phiaj hluav taws xob kom yooj yim xa. Peb paub tias cov khoom siv hluav taws xob muaj lub caij muaj zog. Feem ntau, cov khoom thauj yog loj heev nyob rau lub caij ntuj sov, thiab cov hluav taws xob thauj khoom me me nyob rau lub caij ntuj no. Nyob rau hauv txoj kev no, ib feem ntawm kev hloov pauv thaum lub sijhawm ua haujlwm tuaj yeem thim rov qab thaum lub sijhawm thauj khoom me me hauv lub caij ntuj no, uas txo qhov tsis muaj kev thauj khoom los ntawm kev ua haujlwm ntawm lub peev xwm loj transformers thiab txhim kho kev ua haujlwm ntawm tag nrho cov kab hluav taws xob.
Piv txwv li, 40,000KVA transformer yog xav tau rau qhov siab tshaj plaws ntawm lub zog hluav taws xob. Yog tias xaiv 50,000KVA transformer, lub transformer yuav tsum tau ua haujlwm txhua lub sijhawm. Yog tias lub tshuab hloov pauv tsis ua haujlwm, nws yuav cuam tshuam rau kev siv hluav taws xob ib txwm siv ntawm txhua yam khoom siv hauv qab ntawm lub tshuab hloov pauv, thiab ua rau muaj kev puas tsuaj loj rau qee tus neeg siv hluav taws xob uas tsis tso cai txiav hluav taws xob, thiab tseem ua rau muaj kev nyab xeeb. Piv txwv li, cov khoom siv khaws cia cov ntaub ntawv hauv chav cov ntaub ntawv loj. Thiab thaum lub load txo nyob rau hauv lub caij ntuj no, lub transformer yuav tshwm sim raws li ib tug loj nees-raws li lub laub. Yog tias peb 25000KVA transformers siv nyob rau hauv kev ua haujlwm sib luag, ib lub tshuab hloov pauv tuaj yeem raug tshem tawm thaum lub load me me los txo qhov tsis muaj load poob thiab reactive load nqi ntawm lub transformer, thiab nyob rau tib lub sij hawm zoo heev txhim kho lub hwj chim mov kev ntseeg siab ntawm lub hwj chim system. .