Txoj kev loj hlob ntawm substation
Ua ntej xyoo 1949, tsuas muaj ob peb lub 154 thiab 220 kV substations nyob rau sab qaum teb Tuam Tshoj. Tom qab xyoo 1949, nrog rau kev tsim kho hluav taws xob, ntau thaj tsam tau ua tiav ua tiav 220 kV lub zog hluav taws xob. Xyoo 1972, 330 kV substation tau tsim nyob rau hauv Northwest Tuam Tshoj. Xyoo 1981, thawj 500 kV substation tau tsim nyob rau hauv Central Tuam Tshoj. Chaw nres tsheb fais fab. Thoob ntiaj teb, Tebchaws Meskas, Canada, Soviet Union thiab lwm lub tebchaws tau tsim 750 (765) kV substations. Lub Soviet Union ua tiav thawj 1150 kV kis tau tus mob project nyob rau hauv 1985, thiab Nyiv' s 1,000 kV substation kuj ua tiav nyob rau hauv 1992.
Nrog tus nruam kev loj hlob ntawm hluav taws xob load thiab qhov kev nce rau ntawm load ceev, lub voltage theem thiab muaj peev xwm ntawm substations txuas ntxiv mus nce. Tsis tsuas yog lub peev xwm ntawm ib qho kev hloov pauv tau nce zuj zus, tab sis tus naj npawb ntawm cov transformers kuj nce ntxiv, thiab cov kev xav tau ntawm cov khoom siv hluav taws xob kuj tau nce siab dua. . Nyob rau tib lub sijhawm, vim kev xav tau ntawm ib puag ncig, nws tau dhau los ua nyuaj rau xaiv qhov chaw substation thiab kab corridors. Yog li ntawd, substations yuav tsum tau txhim khu kev qha thiab nyob raws li me me av li sai tau. Qee zaum, xws li substations nyob rau hauv nruab nrab cheeb tsam ntawm lub nroog loj, nws yog feem ntau txiav txim siab los tsim underground. Yuav kom ua tau raws li cov kev cai no ntau npaum li qhov ua tau, txoj kev txhim kho yog: Ua ntej, ua kom yooj yim rau theem voltage thiab siv cov hluav taws xob siab kom tob rau qhov chaw thauj khoom hnyav, xws li ncaj qha txo 220kV mus rau 35kV lossis qis dua kom txo tau cov substations, kev tsim kho kev nqis peev thiab hluav taws xob poob. Qhov thib ob yog kev txhim kho kev ntseeg siab, miniaturization thiab kev txawj ntse hauv cov cuab yeej siv, thiab siv zog los npaj cov dej-pov thawj, hluav taws-pov thawj kev ua tau zoo thiab hloov mus rau qhov yuav tsum tau ntawm kev hloov pauv ntawm ib puag ncig kub, nrog rau txuas ntxiv lub voj voog tu thiab txo cov haujlwm ua haujlwm. ntawm cov cuab yeej siv ntau li ntau tau kom ua tiav kev saib xyuas-dawb Piv txwv li, kev siv roj-insulated hlau-kab switchgear ntawm ntau theem voltage tau dhau los ua qhov dav. Vim yog kev txhim kho ntawm cov khoom siv kev ntseeg siab, cov xaim tseem ceeb thiab cov chaw pabcuam ntawm cov substations tau maj mam ua kom yooj yim thiab typified, tsim cov xwm txheej rau miniaturization, intelligentization, tsis tshua muaj neeg ua haujlwm hauv av, thiab txawm tias kev tsim kho substations hauv av, thiab koom tes nrog lawv. Cov chaw taws teeb tswj, telemetry thiab lwm yam txhais tau tias nyob rau hauv lub system, raws li zoo raws li lub automation chaw nyob rau hauv lub substation, xws li cov khoom raws li txoj cai saib xyuas, kev huam yuaj raws li txoj cai, cov ntaub ntawv txhaum cai, thiab tseem ceeb parameter tabulation thiab luam ntawv, ua rau lub substation unattended.
