Kev Txhais Lus ntawm Lub Npe Phaj: Ib Daim Ntawv Qhia Tag Nrho rau Cov Lus Qhia Txog Transformer

Kev Taw Qhia

Txhua lub transformer nqa ib daim hlau uas ua haujlwm ua nws daim npav qhia tus kheej - daim ntawv lo. Rau cov kws tshaj lij kev yuav khoom, cov engineers, thiab cov thawj tswj hwm khoom vaj khoom tsev, kev nkag siab cov ntaub ntawv no yog qhov tseem ceeb. Daim ntawv lo muaj cov ntaub ntawv tseem ceeb uas txhais tau tias yuav ua li cas lub transformer tuaj yeem ua haujlwm, txuas, thiab tswj hwm thoob plaws nws lub neej kev pabcuam.

Phau ntawv qhia no txiav txim siab cov yam ntxwv tseem ceeb uas pom ntawm cov ntawv cim transformer, piav qhia txog txhua yam txhais li cas thiab vim li cas nws thiaj li tseem ceeb rau kev qhia tshwj xeeb thiab kev yuav khoom.

Tshooj Ib: Kev Txheeb Xyuas Transformer thiab Cov Ntaub Ntawv Tseem Ceeb

Nyob rau sab saum toj ntawm txhua daim ntawv teev npe, koj yuav pom lub npe ntawm tus neeg tsim khoom thiab tus lej serial tshwj xeeb. Tus lej serial no yog qhov tseem ceeb rau kev taug qab cov ntaub ntawv tsim khoom, cov ntawv qhia kev xeem, thiab cov ntaub ntawv tsim qauv - qhov tseem ceeb yog daim ntawv pov thawj yug ntawm lub transformer.

Feem ntau, hnub tim tsim khoom (hli thiab xyoo) kuj tau muab, ua rau muaj kev ntsuam xyuas hnub nyoog thiab kev npaj txij nkawm.

Daim ntawv sau npe yuav qhia meej meej seb lub tshuab no yog "transformer" lossis "autotransformer," tus naj npawb ntawm cov theem (ib theem lossis peb theem), thiab zaus ua haujlwm (feem ntau yog 50 Hz lossis 60 Hz).

Tshooj Ob: Kev Ntsuas Fais Fab thiab Voltage

Lub zog ntsuas (kVA lossis MVA).Qhov no qhia txog lub zog pom tseeb uas lub transformer tuaj yeem xa tau tas li ntawm qhov ntsuas hluav taws xob thiab zaus yam tsis pub tshaj qhov txwv kub. Rau cov transformers uas muaj ntau theem txias, cov qib sib txawv yuav raug pom rau txhua hom.

Kev Ntsuas Hluav Taws Xob.Cov ntaub ntawv txog qhov hluav taws xob tshwm sim hauv ib hom ntawv tshwj xeeb. Piv txwv li, "230000GR.Y / 132800-69000GR.Y / 39840-12470" qhia tias:

• Kev sib txuas hluav taws xob siab: 230,000 V kab-rau-kab, av Y, 132,800 V theem-rau-nruab nrab
• Qhov hluav taws xob qis: 69,000 V kab-rau-kab, av Y, 39,840 V theem-rau-nruab nrab
• Tertiary winding: 12,470 V delta-txuas nrog

Thaum lub cim slash tshwm sim, nws cais cov hluav taws xob kab-rau-kab los ntawm cov hluav taws xob theem-rau-nruab nrab. GR.Y lossis Grd.Y qhia tias qhov nruab nrab yog npaj yuav tsum tau grounded.-1.

Cov ntaub ntawv tapping.Rau cov transformers nrog cov tap changers, lub rooj sib piv voltage qhia qhov voltage ntawm txhua qhov chaw tap, uas tso cai rau cov neeg teb xov tooj xaiv qhov chaw tsim nyog rau cov xwm txheej ntawm lub kaw lus.

Tshooj Peb: Cov Ntaub Ntawv Impedance thiab Kev Poob

Feem pua ​​​​​​ntawm Impedance (% Z).Qhov parameter tseem ceeb no, qhia ua feem pua, qhia txog qhov voltage poob thaum lub sijhawm puv. Nws cuam tshuam rau cov tam sim no luv luv thiab kev tswj hwm voltage. Cov nqi ib txwm muaj txij li 4% txog 15% nyob ntawm qhov loj ntawm transformer. Feem pua ​​impedance tau teev tseg ntawm txhua khub ntawm cov windings, nrog rau kVA puag tau teev tseg.

Tsis Muaj Kev Thauj Khoom Poob (Poob Hlau).Cov kev poob no tshwm sim tas li thaum twg lub transformer muaj zog, tsis hais txog qhov thauj khoom. Lawv yog los ntawm kev sib nqus ntawm lub hauv paus thiab muaj feem cuam tshuam nrog qhov zoo ntawm cov khoom siv hauv paus.

Kev Poob Khoom (Kev Poob Tooj).Cov kev poob no sib txawv nrog rau lub square ntawm cov load tam sim no thiab tshwm sim hauv cov windings vim yog qhov tsis kam. Cov kev poob qis dua txhais tau tias kev ua haujlwm zoo dua nyob rau hauv cov xwm txheej loaded.

Tshooj Plaub: Cov Ntaub Ntawv Txog Kev Txias, Kub, thiab Kev Sib Txuas

Chav Kawm Txias.Cov transformers siv cov lej txheem los qhia txog cov txheej txheem txias. Rau cov chav uas muab roj rau hauv, cov lus qhia xws li ONAN (Roj Ntuj Cua Ntuj) lossis ONAF (Roj Ntuj Cua Yuam) piav qhia txog cov khoom siv txias sab hauv thiab sab nraud thiab cov txheej txheem ncig. Rau Transformer Hom Qhuavs, cov lej zoo li AN (Air Natural) lossis AF (Air Forced) raug siv.

Kub Nce.Qhov no qhia txog qhov kub siab tshaj plaws uas lub transformer tuaj yeem tiv taus tas mus li, feem ntau yog 55 ° C lossis 65 ° C rau cov roj-immersed units. Chav kawm rwb thaiv tsev (A, B, F, H) qhia txog qhov kub siab tshaj plaws uas tso cai ua haujlwm.

Pawg Vector thiab Daim Duab Txuas.Rau cov transformers polyphase, daim duab vector qhia txog kev sib raug zoo ntawm theem ntawm cov windings thawj thiab theem nrab. Cov npe nrov xws li Dyn11 qhia txog delta thawj, wye theem nrab nrog nruab nrab, thiab 30-degree theem hloov pauv. Daim duab schematic qhia txog txhua qhov kev sib txuas sab hauv thiab cov cim davhlau ya nyob twg.

Tshooj Tsib: Cov Ntaub Ntawv Txog Lub Cev Thiab Kev Nyab Xeeb

Qhov Hnyav thiab Qhov Ntim Roj.Feem ntau cov ntawv cim npe teev qhov hnyav ntawm lub plawv thiab cov kauj, lub tank thiab cov khoom siv, roj rwb thaiv tsev, qhov hnyav tag nrho, thiab qhov hnyav tshaj plaws rau kev nqa. Qhov ntim roj thiab hom kua rwb thaiv tsev kuj tau teev tseg.

Cov Qib Rwb Thaiv Tsev.Qib Kev Rwb Thaiv Hluav Taws Xob Yooj Yim (BIL) qhia txog lub peev xwm ntawm lub transformer los tiv taus cov hluav taws xob surge, uas tau teev tseg rau txhua qhov winding.

Qib Suab.Qee cov ntawv cim npe suav nrog qib suab hauv decibels, ntsuas ntawm qhov deb tus qauv. Qhov no tseem ceeb heev rau kev teeb tsa hauv thaj chaw uas muaj suab nrov xws li cov zej zog nyob lossis tsev kho mob.

Xaus lus

Lub npe ntawm lub transformer tsis yog tsuas yog ib daim ntawv lo xwb - nws yog ib daim ntawv qhia txog kev siv tshuab uas piav qhia txog cov peev xwm thiab kev txwv ntawm cov khoom muaj nqis. Rau cov kws tshaj lij kev yuav khoom, kev nkag siab txog kev nyeem thiab txhais cov ntaub ntawv no ua kom muaj kev qhia meej, tiv thaiv kev ua yuam kev, thiab ua rau muaj kev txiav txim siab zoo txog kev xaiv thiab kev siv lub transformer.