Lub bushing layout ntawm substation transformers tsis yooj yim npaum li bushings ntawm padmount transformers. Lub bushings ntawm lub padmount yog ib txwm nyob rau hauv lub txee rau pem hauv ntej ntawm chav tsev nrog tsawg-voltage bushings ntawm sab xis thiab high-voltage bushings nyob rau sab laug. Substation transformers tuaj yeem muaj cov bushings nyob yuav luag txhua qhov chaw ntawm chav tsev. Dab tsi ntxiv, nyob ntawm daim ntawv thov tseeb, qhov kev txiav txim ntawm substation bushings tuaj yeem sib txawv.
Tag nrho cov no txhais tau hais tias thaum koj xav tau lub substation transformer, xyuas kom tseeb tias koj paub qhov tseeb bushing layout ua ntej koj tso koj xaj. Nco ntsoov lub phasing ntawm lub transformer thiab cov khoom koj tab tom txuas mus rau (breaker, thiab lwm yam) bushing layout yuav tsum yog daim iav duab, tsis zoo tib yam.
Yuav ua li cas xaiv layout ntawm bushings
Muaj peb yam:
- Qhov chaw Bushing
- Phasing
- Terminal Enclosures
Qhov chaw Bushing
Lub koom haum American National Standards Institute (ANSI) muab ib tug universal designation rau sau npe transformer sab: ANSI Sab 1 yog lub "pem hauv ntej" ntawm lub transformer-sab ntawm lub tsev uas hosts lub valve thiab nameplate. Lwm sab yog tsim los hloov clockwise nyob ib ncig ntawm lub chav tsev: Facing rau pem hauv ntej ntawm lub transformer (Sab 1), Sab 2 yog sab laug, Sab 3 yog sab nraub qaum, thiab Sab 4 yog sab xis.
Qee zaum substation bushings tuaj yeem nyob rau sab saum toj ntawm chav tsev, tab sis nyob rau hauv rooj plaub ntawd, lawv yuav tau nyob rau ntawm ntug ntawm ib sab (tsis nyob nruab nrab). Lub transformer lub npe daim ntawv yuav muaj tag nrho cov lus piav qhia ntawm nws bushing layout.
Substation Phasing
Raws li koj tuaj yeem pom hauv substation duab saum toj no, cov hluav taws xob qis qis txav ntawm sab laug mus rau sab xis: X0 (qhov nruab nrab bushing), X1, X2, thiab X3.
Txawm li cas los xij, yog tias qhov phasing yog qhov txawv ntawm qhov piv txwv yav dhau los, qhov kev teeb tsa yuav thim rov qab: X0, X3, X2, thiab X1, txav ntawm sab laug mus rau sab xis.
Qhov nruab nrab bushing, duab ntawm no ntawm sab laug, tuaj yeem nyob rau sab xis. Qhov nruab nrab bushing kuj tseem nyob hauv qab ntawm lwm cov bushings lossis ntawm lub hau ntawm lub transformer, tab sis qhov chaw no tsis tshua muaj.
Terminal enclosures
Rau kev nyab xeeb ntawm txhua tus neeg uas tuaj yeem nkag mus rau hauv kev sib cuag nrog lub tshuab hluav taws xob, cov kev cai xav kom txhua lub terminals raug tso tawm kom ncav cuag. Tsis tas li ntawd, tshwj tsis yog cov bushings raug ntsuas rau kev siv sab nraum zoov - zoo li cov ntoo saum toj kawg nkaus - lawv yuav tsum tau muab kaw. Muaj cov substation bushings npog khaws cov dej thiab cov khib nyiab deb ntawm cov khoom nyob. Peb hom feem ntau ntawm substation bushing enclosures yog flange, caj pas, thiab cua davhlau ya nyob twg chamber.
Flange
Flanges feem ntau yog siv los ua ib qho mating seem rau ntsia liaj qhov rooj ntawm lub davhlau ya nyob twg los yog lwm qhov kev hloov pauv. Raws li daim duab hauv qab no, lub tshuab hloov pauv tuaj yeem muab tso rau ntawm qhov ntev ntawm flange (sab laug) lossis ib nrab-ntev flange (txoj cai), uas muab qhov sib txuas uas koj tuaj yeem ntsia tau ib qho kev hloov pauv lossis lub tsheb npav.
caj pas
Lub caj pas yog ib qho txuas txuas ntxiv, thiab raws li koj tuaj yeem pom hauv daim duab hauv qab no, nws tseem tuaj yeem txuas ncaj qha mus rau lub tsheb npav lossis ib qho khoom siv hloov pauv, ib yam li lub flange. Cov caj pas feem ntau yog nyob rau sab qis-voltage ntawm lub transformer. Cov no yog siv thaum koj xav tau txuas lub tsheb npav nyuaj ncaj qha mus rau spades.
caj pas
Lub caj pas yog ib qho txuas txuas ntxiv, thiab raws li koj tuaj yeem pom hauv daim duab hauv qab no, nws tseem tuaj yeem txuas ncaj qha mus rau lub tsheb npav lossis ib qho khoom siv hloov pauv, ib yam li lub flange. Cov caj pas feem ntau yog nyob rau sab qis-voltage ntawm lub transformer. Cov no yog siv thaum koj xav tau txuas lub tsheb npav nyuaj ncaj qha mus rau spades.
Post lub sij hawm: Sep-19-2024