Parallel lag luam ntawm transformers - Tej yam kev mob

Zog - tau ntev lawm ib feem ntawm kev vam meej. Yog tsis muaj nws, xav txog tej yam lub neej tsis yooj yim sua. Uas yog vim li cas rau lo lus nug ntawm lub laaj ntawm lub hwj chim mov tau txais kev pab yog ua nce mob. Thaum uas tig mus lag luam los ntawm transformers - ib yam ntawm cov kev. Txawm li cas los, yog hais tias tsuas rau backup siv cov qauv, thiab dab tsi yog qhov uas yuav tsum tau rau cov khoom?

Yog vim li cas xav tau thaum uas tig mus lag luam los ntawm transformers?

Raws li hais saum toj no, chiv pom zoo ua hauj lwm tau tshwm sim los ntawm qhov yuav tsum tau los txhim kho lub cia siab rau ntawm fais fab mov. Txawm li cas los, muaj lwm yam, tsis muaj tsis tseem ceeb, tshwj xeeb tshaj yog thaum thaum uas tig mus lag luam los ntawm transformers yuav tsum tau. Cov ntsiab lus muaj xws li:

• ceev ceev nce nyob rau hauv lub load, uas nyob rau hauv lub nyob ze yav tom ntej yuav ntau tshaj (los yog tshaj) ib tug ua hauj lwm hwj chim transformer;
• tsis muaj qhov chaw (qhov siab, dav) yuav tsis muaj nyiaj yuav tsim kom muaj ib tug loj transformer, tab sis koj muaj peev xwm tso ob me me thiab muaj xws li lawv nyob rau hauv thaum uas tig mus;
• Lawm, kev ruaj ntseg ntsuas ua si ib qho tseem ceeb luag hauj lwm, raws li qhov tshwm sim tsis ua hauj lwm ib zaug ob leeg transformers yog heev tsawg, tab sis nws yog, yog li nyob rau hauv tas li ntawd mus rau qhov kev tshwm sim, thaum uas tig mus lag luam los ntawm transformers, siv lwm yam backup txoj kev.

Muab rau hauv lub lag luam ntawm ob transformers

Txoj siav transformers rau thaum uas tig mus kev lag luam muab redundancy tshwj xeeb tshaj yog ib qho tseem ceeb receivers ntawm hluav taws xob, uas implies uninterrupted fais fab mov. Nyob rau hauv feem ntau ntawm cov substations siv, ob los sis ntau transformers (tsuas tshwj yog nyias kis tau tus mob hom substation). Ua hauj lwm nyob rau hauv thaum uas tig mus yog tso cai, yog tias ob leeg ntawm lub transformer nrog ib tug tej txheej uas yuav tsum tau, uas yog hu ua "tej yam kev mob ntawm thaum uas tig mus lag luam los ntawm transformers":

• ib pab pawg neeg ntawm windings yuav tsum zoo tib yam rau txhua tus lwm yam;
• transformation ratios yuav tsum tau sib npaug zos rau txhua lwm yam, yuav insubstantial sib txawv tsis pub dhau tau kev txwv;
• voltage luv luv circuits yuav tsum sib npaug zos rau txhua lwm yam, nws yog insubstantial sib txawv tsis pub dhau tau kev txwv;
• thaum uas tig mus transformers yuav tsum tau powered los ntawm ib tug network;
• theem nrab cables yuav tsum tau rau txuas lub transformer mus rau lub point yuav tsum kwv yees li sib npaug zos yam ntxwv thiab ntev;
• theem ua haujlwm ntawm lub voltages ntawm cov thawj thiab theem nrab windings yuav tsum tau tib yam.

Qhov yuav tsum tau rau yam ua ntej muab xam

Nyob rau hauv cov ntaub ntawv ntawm kev puas tsuaj ntawm ib tug ntawm ob transformers yog tsis ib txwm tau mus xaiv raws nraim tib yam, uas yog tag nrho matched los ntawm cov puas tej yam kev mob thiab kev khiav hauj lwm hom. Nyob rau hauv cov neeg mob, cov kev xaiv ntawm lub transformer grounded nyob rau hauv txoj ua ntej suav uas qhia tias ob qho tag nrho windings ntawm lub transformer yuav tau loaded tusyees, thiab tsis ib tug ntawm lawv yuav thauj khoom ntau tshaj lub peev xwm ntawm txhua tus neeg transformer.

Luv-Circuit Court voltage

Thaum uas tig mus lag luam los ntawm transformers muaj nyob rau ntawm kuj sib npaug zos qhov tseem ceeb ntawm voltage luv luv circuits nyob rau hauv lub windings. Yog hais tias sib txawv tseem ceeb ntawm RS, ua ntej switching rau lub ob leeg ua hauj lwm yog tsim nyog los yav tas los hloov lub transformation piv ntawm cov transformers nrog ib tug tshwj xeeb mus. Yog li ntawd nws yog tau mus cuag cov nyiaj ntawm rov muaj yais tawm txhawj xeeb uas tshwm sim vim qhov txawv luv luv Circuit Court voltages. Tsob vim li ib tug mismatch equalizing currents yuav tsis tshooj lub transformer nrog ib tug tsawg dua txhaum voltage.

Ntawm cov hoob kawm, koj yuav tsum nqa mus rau hauv tus account lub load peev xwm - yog nyias rau txhua lub tshuab, thiab thaum lub sij hawm, tej txheej xwm raws li thaum uas tig mus lag luam los ntawm hwj chim transformers. Thaum kaw, txawm li cas los, lub txim hluav taws xob yog kiag li tsis muaj cawv nyob rau hauv qhov tseem ceeb ntawm lub luv luv-Circuit Court voltage, vim hais tias cov transformation ratios yog equalized thiab ua tib yam. Nyob rau hauv load, lub qhov voltage yuav tau sib txawv, vim hais tias cov tsis zoo tib voltage nco yuav ua rau to compensating currents rau windings, nrog rau ib transformer compensating tam sim no yog summed nrog rau lub hauv paus, thiab lub thib ob rho tawm. Cov pom zoo piv ntawm cov feem ntau haib muaj peev xwm mus rau lub heev uas tsis muaj zog transformer yuav tsum tsis ntau tshaj li peb mus rau ib tug.

Qhov tej yam kev mob

Parallel lag luam ntawm transformers, peb-winding, ob-winding rau tag nrho cov windings. Nws yuav tsum tau nco ntsoov tias cov khoom siv kev cob cog rua nyob rau hauv parallel, lub load yog faib nyob rau hauv rov qab proportion to luv luv-Circuit Court voltage thiab yog ncaj qha proportional rau lub hwj chim ntawm txhua tus neeg transformer. Thaum uas tig mus lag luam los ntawm transformers, yog hais tias tus winding kev twb kev txuas pawg yog cov sib txawv, nws tseem tau ntawm tag nrho cov khib pawg. Yog hais tias lub xam yog tsis hauj lwm ua ke, ces vim lub kaum sab xis ua haujlwm ntawm lub terminals ntawm ob windings muaj yog ib tug voltage uas ua rau ib tug tsis tsim nyog surge tam sim no.