Dab tsi yog cov yam ntxwv ntawm cov hluav taws xob substation?
Cov qauv ntawm lub thawv-hom fais fab substation feem ntau yog hais txog kev npaj ntawm peb qhov tseem ceeb ntawm lub thawv-hom chaw nres tsheb - high-voltage switchgear, transformers thiab low-voltage power distribution devices.
Feem ntau hais lus, tag nrho cov txheej txheem ntawm lub zog hluav taws xob substation feem ntau muaj peb hom: sib dhos, sib xyaw ua ke thiab kev sib xyaw ua ke. Assembled hom hais txog kev sib dhos ntawm qhov siab thiab tsis tshua muaj hluav taws xob ua tiav cov khoom siv thiab cov hloov pauv mus rau hauv cov thawv hlau. Vim tias qhov tsis zoo ntawm qhov chaw nres tsheb ntawm lub thawv hom no, kev sib dhos ua haujlwm loj, qhov siab siab, thiab qhov chaw loj hauv pem teb, nws tsis tshua siv tam sim no;
Kev sib xyaw ua ke siab thiab tsis tshua muaj hluav taws xob hluav taws xob faib hluav taws xob tsis siv cov cuab yeej ua tiav uas twb muaj lawm, tab sis ncaj qha txhim kho lub siab thiab tsis tshua muaj hluav taws xob tswj thiab kev tiv thaiv cov khoom siv hluav taws xob rau hauv lub thawv kom ua tiav tag nrho. Txij li thaum lub zuag qhia tag nrho kev tsim yog raws li cov txij nkawm-dawb hom, tsis tas yuav tsum tau khiav lag luam txoj kev hauv lub thawv, uas txo qhov ntim ntawm lub thawv-hom fais fab substation.
Hom kev sib xyaw ua ke yog lub npe hu ua American box-type transformer. Nws yog nyob rau hauv lub transformer, thiab lub fuses thiab load switches yog ntsia rau hauv lub transformer box los tsim ib tug integrated layout. Hom no lub thawv-hom transformer yog me me nyob rau hauv ntim, thiab nws lub ntim yog zoo ib yam li cov zoo tib yam roj-immersed transformer ntawm tib lub peev xwm, tsuas yog hais txog 1/3 ntawm lub ntim ntawm ib tug ua ke lub thawv-hom chaw nres tsheb ntawm tib lub peev xwm. .
Xav tias hom sib dhos tsis tshua siv, lub thawv-hom chaw nres tsheb tuaj yeem muab faib ua ob pawg raws li cov qauv: ua ke lub thawv-hom chaw nres tsheb (European style) thiab kev sib xyaw lub thawv-hom chaw nres tsheb (American style). Txij li IEC tus qauv (IECl330 1st edition 95-11) high-voltage/low-voltage prefabricated substations kom meej meej qhia txog qhov dav dav ntawm lub thawv-hom chaw nres tsheb, nws tau teev tseg raws li kev sib xyaw ua ke.
Yog li ntawd, hom kev sib koom ua ke tau siv dav hauv cov teb chaws nquag siv cov qauv IEC. Raws li ib qho ntawm cov teb chaws nquag siv cov qauv IEC hauv kuv lub teb chaws, lub thawv-hom fais fab substation siv feem ntau yog npaj ua ke, thiab hom kev sib xyaw ua ke tuaj yeem muab faib ua ob hom kev teeb tsa: kuv hom thiab tus pin hom; integrated box-type station Kev ua raws li American ANSI tus qauv yog dav siv nyob rau hauv lub tebchaws United States. Lub thawv-hom chaw nres tsheb raws li cov qauv sib txawv yog qhov sib txawv ntawm txoj kev xaim, hom roj hloov pauv, thiab cov khoom siv hloov pauv. Piv txwv li, nyob rau hauv cov nqe lus ntawm kev xaim, American box-hom fais fab substation yog haum rau nruab nrab point ncaj qha grounded system, tab sis tsis yog rau qhov nruab nrab point indirect grounding system, thaum lub European-hom chaw nres tsheb yog haum rau ob leeg.
