Lub 220kV Fais Fab Transformer tab tom sim tam sim no

GNEE Steel fais fab hluav taws xob transformer

Dab tsi yog xob laim impulse voltage test:

Txhawm rau txheeb xyuas seb qhov cuam tshuam lub zog ntawm lub ntsiab thiab qhov ntev ntawm cov rwb thaiv tsev ntawm transformer ua tau raws li cov kev cai ntawm lub teb chaws cov qauv thiab kev kawm thiab txhim kho cov txheej txheem rwb thaiv tsev ntawm transformer, impulse voltage test yuav tsum tau ua. Qhov kev sim hu ua xob laim impulse yog siv lub zog yoj simulating lub teeb tiag tiag ntawm lub terminals ntawm transformer winding. Transformers lossis lwm yam khoom siv hluav taws xob yuav tsum tau sim nyob rau hauv qhov kev txiav txim ntawm qhov kev poob siab yoj saib seb lawv puas tuaj yeem hla (lossis puas). Qhov kev txiav tawm yoj yog sib npaug rau lub waveform tsim los ntawm flashover ntawm kev tiv thaiv qhov sib txawv los yog huab cua rwb thaiv tsev thaum xob laim yoj nkag mus rau hauv lub substation. Nws yog lub waveform nyob rau hauv uas tag nrho cov xob laim nthwv dej yog dheev txiav tawm, thiab qhov voltage poob sharply mus rau xoom. Lub sijhawm txiav tawm tuaj yeem tshwm sim hauv nthwv dej pem hauv ntej lossis yoj tus Tsov tus tw. Kev ntsuas yoj txiav kuj yog ib qho kev sim ntawm cov khoom siv transformer.

Qhov kev sim yuav tsum muaj ib lub cuab yeej los tsim kev poob siab. Cov cuab yeej hu ua impulse voltage generator. Qee cov cuab yeej ntsuas ntsuas feem ntau suav nrog ntsuas lub pob electrode, qhov sib faib hluav taws xob thiab qhov hluav taws xob siab oscilloscope rau kev soj ntsuam qhov tshwm sim ntawm qhov tshwm sim ntawm lub zog. Tus qauv qhia tias tag nrho nthwv dej ntawm qhov ntsuas waveform yog 1.2 ± 30% / 50 ± 20% μ S (wavefront / ib nrab ncov lub sijhawm) thiab lub sijhawm cuam tshuam yog 2-6 μ S Lub zero hla coefficient ntawm truncated yoj (piv txwv li qhov piv ntawm thawj oscillation ncov tom qab truncation rau lub amplitude ntawm lub truncated yoj) yog nyob rau hauv qhov ntau ntawm 0.25-0.35. Cov cuab yeej ntsuas qhov cuam tshuam tsuas yog muaj rau cov nroj tsuag loj transformer thiab cov chaw tshawb fawb sim. Cov chav nyob dav dav tuaj yeem tso siab rau lub tshuab hloov pauv mus rau chav sim tshawb fawb rau kev sim.

Fais fab zaus withstand voltage test yog dab tsi:

Lub hwj chim zaus tiv taus qhov ntsuas hluav taws xob yog cov cuab yeej sim ntsuas yooj yim rau cov chaw nres tsheb fais fab, cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob, cov chaw tshawb fawb tshawb fawb thiab lwm cov neeg siv. Nws yog siv los ntsuas lub zog rwb thaiv tsev ntawm ntau yam khoom siv hluav taws xob, cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob hauv qab qhov ntsuas hluav taws xob, ntsuas qhov ntsuas hluav taws xob ntawm cov khoom, nrhiav cov khoom siv hluav taws xob tsis zoo ntawm cov khoom kuaj thiab ntsuas lub peev xwm ntawm overvoltage.

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