Voltage Transformeryog ib qho khoom siv tsis tseem ceeb hauv lub zog hluav taws xob. Nws muaj cov haujlwm tseem ceeb thiab cov txiaj ntsig thov. Nws muaj nuj nqi yog hloov kho cov hluav taws xob siab rau hauv qis dua voltage rau kev ntsuas, kev tiv thaiv thiab kev tswj hwm. Txhawm rau kom muaj kev nyab xeeb, txhim khu kev qha, kev lag luam thiab kev ua haujlwm ruaj khov yuav tsum tau ntsuas thiab saib xyuas tau zoo, thiab hluav taws xob hloov pauv yog ib qho ntawm lawv. Hauv qab no peb yuav nkag siab txog cov qauv, xaim, kev siv hluav taws xob, kom peb nkag siab txog kev nyab xeeb, kev lag luam thiab kev ua haujlwm ruaj khov ntawm lub zog.
Lub ntsiab lus ntawm Voltage Transformer
◆ Cov tshuab hloov hluav taws xob volter (PT rau cov neeg hloov hluav taws xob thiab VT rau cov roj voltemer, ob qho tib si los hloov qhov hluav taws xob ntawm kab lossis npav.
◆ Cov tshuab hloov hluav taws xob voltable yog transformer nrog tus tub ntxhais hlau. Nws yog mas tsim ntawm Thawj kauj ruam thiab theem theem nrab, ib hlau hlau txheem thiab rwb thaiv tsev. Thaum lub voltage U1 tau thov rau thawj lub winding, sib nqus flux yog tsim tawm hauv cov tub ntxhais hlau. Raws li kev cai lij choj ntawm electromagnetic induction, lub voltage voltage U2 yog tsim nyob rau theem ob.
Hloov pauv ntawm tus naj npawb thib ib los ntawm thawj qhov winderary lossis theem nrab ntawm kev sib piv ntawm cov kev sib txuas, uas tuaj yeem tsim cov tshuab hluav taws xob sib piv.
◆ Cov hloov pauv hloov pauv ntau dua siab hloov pauv siab rau mus rau hauv qhov chaw voltage qis hauv kev faib ua feem, feem ntau 100V. Thawj sab ntawm lub voltage transformer tau txuas nrog ib sab sab, thiab sab ob tau txuas nrog cov twj paj nruag, kev tiv thaiv ntxiv thiab lwm yam khoom siv.
Muaj nuj nqi, kev faib tawm thiab cov qauv ntawm voltage transformer
1.Lub luag haujlwm ntawm voltage transformers
◆ Cov kev sib hloov voltage yog cov sensors uas cais cov hluav taws xob loj thiab cov khoom siv tsis siv neeg thiab ntsuas cov ntaub ntawv voltage. Lawv hloov dua siab voltages rau hauv 100v lossis 100 / 3V tus qauv thib ob voltages nyob rau hauv kev siv nyiaj rau kev siv nyiaj los ntawm kev siv nyiaj rau kev siv nyiaj los ntawm kev siv nyiaj rau kev siv nyiaj rau kev siv nyiaj los ntawm kev siv nyiaj los ntawm meternal, cov cuab yeej siv thiab xa tawm.
Rolt volters transformers tuaj yeem siv los cais tawm ntawm cov neeg ua haujlwm hluav taws xob, kom muaj kev nyab xeeb ntawm cov khoom siv thiab cov neeg ua haujlwm.
2.Kev faib tawm ntawm voltage transformers
◆ Raws li qhov chaw teeb tsa, lawv tuaj yeem faib ua hom sab hauv tsev thiab sab nraum zoov. 35KV thiab hauv qab no feem ntau yog cov hom sab tsev, thaum 35kv thiab saum toj no feem ntau yog qhov sib txawv sab nraum zoov, thiab muaj qhov sib txawv ntawm kev rwb thaiv tsev.
◆ Raws li cov nqe lus, lawv tuaj yeem faib ua ib leeg-theem thiab peb-theem hom. 10KV thiab hauv qab no siv peb-theem hom.
Raws li cov naj npawb ntawm cov windings, lawv tuaj yeem faib ua ob npaug windings, peb windings thiab plaub windings:
Raws li cov txheej txheem rwb thaiv tsev, lawv tuaj yeem faib ua hom qhuav, cam-raus hom thiab roj hom.
Raws li lub ntsiab cai ua haujlwm, nws tuaj yeem faib ua: Electromagnetic hom, muaj peev xwm hluav taws xob hloov pauv hloov tshiab. Ntawm cov khoom, lub tshuab hluav taws xob tau muab faib ua: Peb-theem hom thiab ib hom-theem nkaus xwb; Qhov peb-theem hom tuaj yeem faib ua: Peb-theem ob-kem hom thiab ob-theem tsib-kem.
3.Voly Transformer qauv
◆ Cov roj Rauv hluav taws xob hluav taws xob hloov hluav taws xob hloov hluav taws xob hloov pauv tau muab faib ua ib-theem thiab theem-theem. Ib feem-theem yuav siv tau rau voltage theem ntawm 220kv thiab hauv qab no, thiab series-theem yuav siv rau txhua qhov hluav taws xob ntawm 66KV thiab saum toj no. Tus thawj thiab lub zog thib ob ntawm tib-theem hom yog qhov txhab ntawm cov hlau txheem, thiab cov rwb thaiv tsev tsis tau qhab nia. Zog hloov siab yog ua tiav los ntawm kev sib nqus txuas. Cov hom-series hom muaj ntau cov windings nrog tib tus lej ntawm tib lub zog, uas tau npaj ua ke ntawm tib lub zog voltage thiab hauv av.
Sf6 roj-insulated voltage transformer SF6 roj-insulated voltage transformer muaj lub hnab, ib hlau hlau, thiab cov khoom siv inclary. Lub ntsej muag tseem ceeb feem ntau adopts ib txheej txheem-puab txheej winding thiab yog qhov txhab nyob rau hauv graded yam; Qhov winder thib ob yog ib txheej winding, uas yog qhov txhab ze rau cov tub ntxhais hlau. Cov tub ntxhais hlau feem ntau yog kev lees paub ib-theem ob-laminated hlau tub ntxhais. SF6 roj insulated voltage transformer tuaj yeem siv nrog gis los yog ua tus neeg ywj pheej sf6 roj insulated voltage transformer.
◆ Tshaws insulation rwb thaiv tsev voltage transformer Casting Rwb thaiv tsev siv cov khaub ncaws tsis tau zoo thiab epoxy cob qhia. Casting rwb thaiv tsev voltage transformer feem ntau yog siv rau theem voltage, thiab tuaj yeem ua rau sab hauv tsev, sab nraum zoov, ungrounded thiab lwm yam qauv. (Kawm txog kev kawm hluav taws xob ntawm tsob ntoo noog kev kawm) rau 10kV hloov txee, yuav luag txhua tus tau cam
SmA catchal voltage transforming cov qauv ntawm capacitor voltage transformer tau muab faib ua ob hom hluav taws xob hloov kho tau raws li cov khoom siv hluav taws xob: sib faib hom thiab ib hom. Chav Capacage divider thiab electromagnetic chav tsev tau txuas nrog lub centermitor dividage divider los ntawm lub tes tsho sab nraud. Chav Capacage divider thiab lub chav ntsuas hluav taws xob tau sib sau ua ke los ntawm sab saum toj mus rau hauv qab, thiab ob qho txuas nrog sab hauv cov khoom, uas yog hu ua ib hom kem.
Configuration cov ntsiab cai ntawm voltage transformers
Rau cov kev sib txuas tseem ceeb xws li ib lub tsheb npav, ib lub tsheb npav ib zaug, thiab lwm yam, rau peb-theem voltage transformer yuav tsum muab ntsia rau hauv npav; Thaum muaj lub hwj chim ntawm cov kab nrog cov kab thiab cov ntawv rov qab yuav tsum tau kos cov synchronization yog qhov yuav tsum tau, ib nrab-theem lossis ob-theem voltage transformer yuav tsum muab ntsia rau ntawm kab sab.
◆ Rau 3/2 lub ntsiab kev sib txuas, peb-theem voltage transformers feem ntau ntsia rau synchronous paveling thiab reclosing kom kuaj tsis muaj voltage thiab synchronization.
◆ Qhov hluav taws xob cov tshuab hloov hluav taws xob ntawm sab hauv txuas tuaj yeem ntsia tau ntawm kab sab lossis ntawm lub busbar, tab sis feem ntau tsis nyob rau tib lub sijhawm. Cov chaw sib txawv yuav cuam tshuam cov kev tiv thaiv kev ua haujlwm.
◆ Txog rau cov hluav taws xob voltage 220kv thiab hauv qab no, cov kev pauv hloov hluav taws xob feem ntau muaj ob rau peb theem nrab, ib qho uas txuas nrog rau ib lub hnub qub qhib. Hauv 500kv system, rau cov luam tiav ntawm xoom kev tiv thaiv yog feem ntau xaiv, peb uas txuas nrog peb lub hnub qub.
◆ Thaum muaj cov kev xav tau tshwj xeeb rau lub ntsuas ntsuas hluav taws xob, lub ntsuas hluav taws xob hloov pauv tuaj yeem muab ntxiv lossis ntsuas hluav taws xob ntxiv rau kev metering tau nruab.
◆ Hauv qhov system tam sim no, thaum nws tsim nyog los tshawb xyuas cov kab voltage lossis synchronization hloov chaw voltage yuav tsum tau muab ntsia rau ntawm kab sab.
◆ Nyob rau hauv cov txheej txheem tam sim no, thaum txoj kab muaj qhov yuav tsum tau los kuaj cov kab ntawm kab hluav taws xob lossis synchronization, lub voltage extraction yuav tsum tau siv ua ntej. 500kV kab yog feem ntau nruab nrog peb lub capacitive kab voltage transform transformers rau kev tiv thaiv, ntsuas thiab cov xa khoom sib txuas lus.
Tiv Tauj Peb
Yog tias koj xav tiv tauj peb rau kev pab ntxiv lossis nug cov lus nug ntxiv, ntawm no yog cov kev dav dav mus txog:
Cov ntaub ntawv tiv toj
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