300 kVA Roj Filled Transformer-13.2/0.48 kV|Guyane xyoo 2024

01 General

1.1 Project Background

300 kVA ncoo mounted transformer tau xa mus rau South America hauv 2024. Lub zog ntsuas ntawm lub transformer yog 300 kVA nrog ONAN txias. Thawj qhov hluav taws xob yog 13.2GrdY / 7.62kV nrog ± 2 * 2.5% tapping ntau yam (NLTC), qhov nruab nrab voltage yog 0.48 / 0.277kV, lawv tsim ib pawg vector ntawm YNyn0, thiab nws yog lub voj pub thiab tuag pem hauv ntej transformer. Pad mounted transformer yog compact thiab muaj ib tug me me hneev taw, ua rau nws tshwj xeeb tshaj yog haum rau siv nyob rau hauv lub nroog thiab cov chaw uas tsis muaj chaw. Pad mounted transformer integrates transformers, high{13}}voltage switchgear, low-voltage distribution equipment and auxiliary equipment in a single box, zam qhov teeb meem ntawm kev tawg ntawm cov khoom siv hluav taws xob ib txwm muaj. Ua kom tiav tag nrho cov kev sib dhos thiab commissioning ntawm cov cuab yeej hauv lub Hoobkas, thiab tsuas yog yuav tsum tau txuas siab -voltage thiab low-voltage cables mus rau qhov chaw ua haujlwm, ua rau lub sijhawm siv sijhawm luv. Qhov zoo ntawm kev tsim ntawm American box transformer yog feem ntau xav txog nyob rau hauv lub compact qauv tsim, kev ruaj ntseg siab, tsis tshua muaj nqi tu thiab hloov tau yooj yim. Cov yam ntxwv no ua rau nws tshwj xeeb tshaj yog rau daim ntawv thov nyob rau hauv nroog fais fab kev faib khoom, kev lag luam complex, cua zog, photovoltaic thiab lwm yam scenarios uas yuav tsum tau muaj qhov chaw siab, kev ntseeg siab thiab efficiency.

Peb 300 KVA ncoo mounted transformer tau tsim los nrog cov thev naus laus zis siab heev thiab siv cov khoom zoo thiab cov khoom siv uas ua rau muaj kev ntseeg tau zoo thiab lub sijhawm ua haujlwm ntev.

1.2 Technical Specification

300 KVA transformer specifications hom thiab cov ntaub ntawv ntawv

1.3 Cov duab kos

300 KVA ncoo mounted transformer daim duab kos duab thiab loj.

02 Kev tsim khoom

2.1 TSI HV

Cov cuab yeej tuag pem hauv ntej rau transformers txhim khu kev nyab xeeb (txo siab -voltage exposure/arc flash risk) thiab ua rau cov txee me me los ntawm kev txo bushing clearances. Tsawg dua nyob rau hauv padmount transformers niaj hnub no, nyob pem hauv ntej bushings yog qee zaus siv rau HV thawj kev sib txuas. Tuag rau pem hauv ntej interfaces (feem ntau yog 200A loadbreak; 600/900A tsis yog- kev xaiv loadbreak) tsis tshua muaj siv rau LV qhov kev txiav tawm thib ob vim tias tsuas yog txhawb nqa ib lub cable rau ib lub luj tshib txuas (tsis sib haum nrog ntau-kab txuas rau ib theem teeb tsa).

2.2 LV bushing kev txhawb nqa

Thaum qis-voltage spades suav nrog ntau qhov txuas ntxiv, lawv feem ntau loj hlob ntev. Yog tias koj cov spades muaj ntau lub qhov (thiab yog li txuas nrog ntau lub cables), ntxiv qis -voltage bushing supports dhau los ua qhov tsim nyog ntsuas. Kev txhawb nqa Bushing kuj yog ib qho kev xav zoo yog tias koj ua haujlwm nrog spade extensions.

Lub bushing uas tsis muaj kev txhawb nqa tuaj yeem raug strained los ntawm qhov hnyav ntawm ntau cov cables hnyav uas txuas rau nws. Qhov hnyav hnyav no tuaj yeem ua rau hauv qab ntawm lub bushing gasket (uas zaum ntawm phab ntsa transformer tank). Thaum lub sij hawm, qhov compression no tuaj yeem ua rau cov roj hloov pauv uas pib los ntawm qhov chaw sab saum toj ntawm lub gasket.

2.3 Tank

Transformer kais hloov pauv ua haujlwm los ntawm kev xaiv qhov chaw ua raws li qhov tseeb cov khoom siv hluav taws xob- qhov no ua rau cov khoom tso tawm qhov hluav taws xob sib piv nrog cov khoom siv hluav taws xob ntsuas cov npe npe.

Yog tias qhov hluav taws xob nkag tau qis dhau lawm: Tig lub HV txee lub kais hloov mus rau qhov chaw qis dua. Qhov no disconnects me me ntawm cov thawj winding (txo nws lem suav, thaum lub thib ob nyob twj ywm unchanged). Qhov hloov pauv hloov pauv txhawb qhov theem nrab- sab voltage, kho qhov teeb meem qis nkag.

2.4 Kev sib dhos zaum kawg

Qhov no yog lub ntsaws-nyob rau hauv, tam sim no- txwv fuse ntsia ntawm lub transformer siab -voltage sab. Nws ua haujlwm likev tiv thaiv thaub qabtawm tsam sab hauv lossis theem nrab- sab tsis ua haujlwm. Nws cov yam ntxwv tseem ceeb suav nrog abayonet -styletsim kom muaj kev nyab xeeb ntawm phau ntawv hloov,ceev tam sim no cuam tshuamtxwv tsis pub muaj zog, thiab aqhov taw qhia qhov muag(zoo li tus pin striker) kom pom tseeb ua haujlwm. Lub fuse yog koom tes nrog lub transformer qhov kev ntsuam xyuas los xyuas kom meej xaiv tripping, muab ib qho yooj yim thiab txhim khu kev qha kev tiv thaiv sab nraum zoov.

2.5 Lub Rooj Sib Tham Kawg

Lub loadbreak hloov yog peb-ncej, SF6-insulated switching ntaus ntawv mounted rau ntawm high-voltage sab, tsim kom muaj kev nyab xeeb thiab tawg load tam sim no. Nws cov yam ntxwv tseem ceeb suav nrogpom disconnectrau kev cais,tuag- pem hauv ntej kev tsim khorau tus neeg teb xov tooj kev nyab xeeb, ibsab nraud rotary kovrau kev siv phau ntawv, thiab kev sib xyaw ua kearc- muaj peev xwm quenching(feem ntau yog siv SF6 roj lossis lub tshuab nqus tsev). Qhov kev hloov no tso cai rau kom muaj kev nyab xeeb ntawm kev faib tawm, hloov hluav taws xob energization / de- zog, thiab kev sib cais txhaum yam tsis tas yuav tsum tau tshem tawm lub luj tshib, txhim kho qhov yooj yim thiab kev nyab xeeb ntawm kev saib xyuas.

03 Kev Xeem

04 Packing thiab Shipping

05 Site thiab Summary

Peb Phase Pad Mounted Transformer, nrog rau nws cov kev ua tau zoo, tsim kev nyab xeeb, thiab kev ua haujlwm ruaj khov, yog qhov kev xaiv zoo tshaj plaws rau kev faib hluav taws xob. Txawm hais tias hauv kev lag luam, kev lag luam, lossis pej xeem kev siv vaj tse, nws ntseeg tau tias muaj ntau yam kev xav tau, muab cov neeg siv tau zoo, lub zog -txuag, thiab nqi- cov kev daws teeb meem zoo. Xaiv Peb Phase Pad Mounted Transformer kom muaj kev nyab xeeb thiab txhim khu kev qha lub zog rau koj cov haujlwm thiab pab txhawb kev muaj zog rau kev txhim kho kom ruaj khov rau yav tom ntej.