Cov khoom siv nkag nkag (ASU) yog tsim los txuas cov hluav taws xob sab hauv thiab kev teeb tsa hluav taws xob rau cov khoom siv hluav taws xob sab nraud thiab cov kab hluav taws xob siab. Tab sis lub luag haujlwm tseem ceeb ntawm cov khoom siv no yog raws li hauv qab no: kev faib khoom (uas yog muaj nyob rau hauv lub npe ntawm chav tsev) ntawm cov hluav taws xob los ntawm cov neeg siv khoom sib cais thiab kev tiv thaiv kab los ntawm overloads, luv circuits thiab lwm yam teeb meem zoo sib xws.
Hauv lwm lo lus, cov khoom siv hluav taws xob xa tawm kuj tseem ua haujlwm kom ntseeg tau tias hluav taws xob muaj kev nyab xeeb ntawm cov khoom siv hluav taws xob siab thiab cov khoom siv. Qhov no yog lub hom phiaj tseem ceeb tshaj plaws ntawm ASU. Tsis tas li ntawd, xws li ib tug switchgear delimits lub luag hauj lwm rau kev ua hauj lwm ntawm high-voltage kab ntawm cov neeg ua hauj lwm ntawm lub nroog fais fab tuag daim phiaj thiab cov neeg siv khoom, txij li tam sim ntawd nws muaj peev xwm to taub leej twg.ua txhaum ntawm kev huam yuaj lossis khoom siv tsis ua haujlwm. Thiab tag nrho vim hais tias lub input-distributing ntaus ntawv ua hauj lwm raws li ib hom ntawm watershed, ib hom ntawm ciam teb, nyob rau hauv ib tes ntawm uas yog lub luag hauj lwm ntawm cov neeg siv khoom, thiab nyob rau lwm yam, cov neeg ua hauj lwm ntawm lub nroog lub hwj chim grid. Txoj hauv kev no tseem yog ib hom kev lees paub ntawm cov khoom siv hluav taws xob tsis cuam tshuam rau ntau tus neeg siv khoom siv hluav taws xob, suav nrog tsis yog tsuas yog cov tsev nyob hauv tsev, tab sis kuj tseem muaj cov lag luam loj uas yuav tsum muaj peev xwm loj thiab ruaj khov ntawm cov khoom siv.
Txhawm rau muab cov khoom siv hluav taws xob ib leeg ntawm lub zog me me, uas yog nyob rau qib thib peb ntawm cov khoom siv hluav taws xob tsis cuam tshuam, nws raug nquahu kom siv peb-ncej input-distribution ntaus ntawv ntawm BPV hom, ntsuas rau tam sim no ntawm ib puas mus rau peb puas thiab tsib caug amperes, nrog rau ib tug kev ruaj ntseg thaiv thiab ib tug hloov. Txhawm rau kom ruaj khov thiab ruaj khov ntawm cov cuab yeej siv no, qee zaum YAZ700 series cov thawv xa khoom siv tau siv, nruab nrog peb-ncej hom tsis siv neeg hloov pauv thiab ntsuas rau tam sim no ntawm 500-600 amperes.
Rau cov khoom siv hluav taws xob rau cov tsev nyob hauv tsev mus txog tsib plag tsev, cov khoom siv hluav taws xob sib faib ntawm ShV hom raug teeb tsa. Tau kawg, cov tsev nyob siab siab, cov tsev pej xeem thiab cov lag luam me yuav tsum muaj peev xwm sib txawv kiag li. Ntawm cov chaw zoo li no, raws li txoj cai, ASUs tau siv, uas yog tsim los ntawm kev hloov pauv ntawm ib lossis ob txoj kev pabcuam. Txhua yam khoom siv ntawm hom nomuaj cov tswv yim thiab kev faib tawm vaj huam sib luag. Nws tseem tuaj yeem ua lub txee ua lub Hoobkas.
Feem ntau, muaj ntau tus qauv sib txawv ntawm cov khoom siv no, txij li yuav luag txhua lub nroog loj, cov chaw tsim hluav taws xob tsim hluav taws xob tsim lawv tus kheej tsim kev daws teeb meem, tsim lawv tus kheej cov qauv thiab cov ASUs series. Feem ntau haum rau qhov chaw tshwj xeeb uas cov khoom siv yuav raug siv.
Rau cov nroj tsuag loj thiab cov lag luam, uas yog tus cwj pwm los ntawm kev noj cov khoom siv hluav taws xob loj, cov khoom siv nkag ntawm SHO-70 series tau muab. Lawv kuj tau siv rau hauv cov chaw siv hluav taws xob xws li substations. Cov cuab yeej ntawm hom no, tsim los rau lub zog ntau tshaj 0.4 kW, tau nruab nrog tshwj xeeb Circuit Court breakers nrog fuses lossis Circuit Court breakers ntawm AVM thiab A37 series. Raws li txoj cai, lawv tuaj yeem muaj cov blocks cais sib sau ua ke ntawm qhov chaw teeb tsa. Panels ntawm cov khoom siv no tau nruab ncaj qha rau ntawm phab ntsa ntawm chav hluav taws xob thiab tau txais kev pabcuam los ntawm sab xub ntiag. Lub switchboards lawv tus kheej, raws li qhov yuav tsum tau muaj kev nyab xeeb, yuav tsum nyob rau hauv ib qho chaw yooj yim uas tsuas yog cov neeg ua hauj lwm pab lawv muaj kev nkag tau dawb.
Gas pipelines thiab lwm yam kev siv hluav taws xob tsis raug tso cai hla dhau qhov chaw. Qee zaum, nws raug tso cai rau nruab xws li cov cuab yeej siv hluav taws xob siab hauv txoj kev hauv tsev, ntawm kev tsaws. Tab sis tib lub sijhawm, cov txee yuav tsum raug kaw kom ruaj ntseg, thiab cov tswj tuav yuav tsum tsis txhob uacoj mus rau sab nraud los yog lawv yuav tsum tau muab tshem tawm. Nws yog qhov tsim nyog rau nruab cov khoom siv no hauv cov chav uas muaj cov av noo siab, nrog rau cov chaw uas muaj dej nyab.
