Qhov Tseem Ceeb Ntawm Cov Qauv thiab Kev Ua Haujlwm Qhov Sib txawv ntawm Cov Thawv Cov Khoom Muag thiab Cov Txiaj Ntsig Distribution

Hauv qis-voltage fais fab faib tshuab, "chaw xa khoom" thiab "chaw faib khoom" yog ob qho tib si siv tsis tau yooj yim tsis meej pem. Visually, lawv ob qho tib si integrate Circuit Court breakers, contactors, tiv thaiv pab kiag li lawm, thiab conductor terminals; ua haujlwm, ob qho tib si ua haujlwm ntawm kev faib hluav taws xob thiab kev tiv thaiv kab. Txawm li cas los xij, muaj qhov sib txawv tseem ceeb ntawm cov thawv xa khoom thiab cov khoom xa khoom raws li cov txheej txheem hierarchy, cov txheej txheem tsis yooj yim, tswj peev xwm, thiab daim ntawv thov ciam teb.

 

Txhawm rau kom nkag siab qhov sib txawv no, ib tus tsis tuaj yeem tsuas yog tsom mus rau qhov pom ntawm qhov pom ntawm "cov thawv me me, cov txee loj" thiab "phab ntsa-mounted lossis pem teb-mounted," tab sis yuav tsum rhuav tshem lawv los ntawm qhov kev xav ntawm lub hwj chim system architecture.

 

 

Lub luag haujlwm tseem ceeb ntawm lub thawv xa khoom yog qhov "terminal execution unit" hauv lub zog hluav taws xob.

 

Feem ntau nyob ze ntawm lub thauj khoom, lub thawv xa khoom ncaj qha ua haujlwm rau cov teeb pom kev zoo, cov khoom siv hluav taws xob tsawg, lossis ib qho chaw ua haujlwm -. Nws lub hom phiaj tseem ceeb yog:

kom rationally faib cov hluav taws xob ntws mus rau ntau lub davhlau ya nyob twg circuits;

los muab qhov yooj yim tshaj dhau, luv -circuit, thiab tiv thaiv kev xau rau kab thiab thauj khoom.

Yog li ntawd, cov thawv xa khoom hais txog "kev faib khoom nyab xeeb" ntau dua li qhov system-theem "tswj thiab tswj."

Cov khoom faib khoom, ntawm qhov tod tes, yog qhov tseem ceeb "tswj thiab tswj cov nodes" hauv lub zog hluav taws xob.

 

Cov khoom faib khoom feem ntau yog nyob rau hauv chav faib khoom, substations, lossis cov chaw tswj hwm, ua haujlwm hauv nruab nrab ntawm kev tswj hwm, kev saib xyuas raws li txoj cai, thiab kev tswj xyuas qhov tseeb ntawm ntau lub voj voog qis, cov thawv xa khoom, thiab txawm tias tag nrho cov txheej txheem. Lawv tsis yog tsuas yog cov khoom siv hluav taws xob faib hluav taws xob nkaus xwb tab sis kuj tseem yog lub hauv paus ntawm kev txiav txim siab hluav taws xob- ua thiab teb.

 

Hauv cov xwm txheej muaj xwm txheej, cov khoom faib khoom feem ntau hloov zuj zus mus rau hauv cov khoom tswj kev lag luam lossis cov khoom siv hluav taws xob, lawv cov dej num tau dhau los ntawm cov ntsiab lus ntawm "kev faib hluav taws xob."

 

 

1. Cov yam ntxwv zoo ntawm cov thawv ntim khoom

Cov thawv ntim khoom muaj cov qauv yooj yim, feem ntau muaj cov phab ntsa -mounted lossis recessed hlau enclosures. Lawv cov kev teeb tsa sab hauv feem ntau siv cov qauv qis-voltage Cheebtsam, suav nrog:

Miniature Circuit Court breakers los yog molded case Circuit Court breakers

Residual tam sim no cov cuab yeej (RCDs)

Yooj yim contactors thiab taw qhia teeb

 

Cov qauv tsim tsom rau kev compactness, kev nyab xeeb, thiab yooj yim ntawm installation, hais txog qhov chaw siv thiab tsim qauv. Vim qhov loj me thiab cov cua sov dissipation txwv, cov thawv xa khoom tsis tsim nyog rau cov tsev nyob hauv kev tswj hwm lossis kev sib koom ua ke ntau cov qauv ua haujlwm.

 

Hauv ib qho system, nws ua haujlwm zoo li "lub zog hluav taws xob" dua li "lub hlwb."

 

2. Cov yam ntxwv ntawm kev faib khoom txee

Cov khoom faib khoom feem ntau yog ntsug, hauv pem teb- cov qauv sawv cev nrog cov qauv tsim sab hauv thiab cov kev ua haujlwm pom tseeb, xws li:

Cheeb Tsam Busbar

Qhov Chaw Ua Haujlwm Hauv Cheeb Tsam

Tswj thiab teeb liab cheeb tsam

Kev sib txuas lus thiab Kev Pabcuam Kev Siv Hluav Taws Xob

 

Qhov txheej txheem "redundancy" tso cai rau cov khoom faib khoom sib koom ua ke:

 

Kev Tiv Thaiv Relay

Tsis Siv Neeg Hloov Logic

Status Acquisition and Remote Communication

Kev tswj qhov kub thiab txias, qhov cua, thiab Environmental Monitoring Systems

 

Hauv kev lag luam niaj hnub no, cov khoom faib khoom feem ntau yuav tsum tau siv ua ke nrog kev tswj hwm lub tshuab cua txias lossis tswj vaj huam sib luag AC units kom ntseeg tau tias lub sijhawm ua haujlwm ntev -PLCs, relays, thiab fais fab modules nyob rau hauv qhov kub thiab txias, thiab tej zaum yuav hloov mus rau tag nrho huab cua- tswj cov txee lossis cov txee qhuav nrog kev tswj kub.

 

 

Distribution Boxes: Kev tiv thaiv raws li cov tub ntxhais

Lub luag haujlwm ntawm cov thawv faib khoom tsom rau:

Kab Disconnection

Load Protection

Yooj Yim Pib / Nres Tswj

 

Lawv qhov kev tiv thaiv logic feem ntau yog "cov lus teb tsis zoo," txhais tau hais tias lub Circuit Court raug txiav tawm tom qab muaj kev txhaum tshwm sim los tiv thaiv kev sib tsoo los ntawm kev nce ntxiv. Qhov kev tsim no zoo tagnrho rau tsev, chaw ua haujlwm, thiab cov vaj tsev dav dav.

 

Kev faib khoom txee: Lub hauv paus ntawm "Control + Monitoring + Kev txiav txim siab-Kev ua."

Cov khoom faib khoom hais txog "kev tswj hwm kev muaj peev xwm," xws li:

Tiag -lub sij hawm saib xyuas ntawm kev khiav hauj lwm tsis

Fault ceeb toom thiab kaw

Automatic / manual switching

Kev koom ua ke nrog ntau dua -theem systems

 

Hauv cov xwm txheej kev lag luam, cov khoom faib khoom feem ntau tau hloov kho rau PLC tswj cov txee lossis PLC cov khoom siv, siv cov khoom siv logic kom ua tiav cov kev tswj xyuas cov khoom nyuaj xws li lub cev muaj zog, cov kab ntau lawm, thiab cov tsheb khiav, xws li cov khoom tswj lub cev muaj zog lossis cov khoom tswj tsheb.

 

 

Daim ntawv thov tsom mus rau lub thawv xa khoom yog nyob ntawm "neeg siv-tus phooj ywg scenarios":

 

Cov tsev nyob thiab kev lag luam

Kev kawm, kev kho mob, thiab cov tsev kawm ntawv pej xeem

Kev cob qhia me me lossis lub zog ywj pheej

 

Lawv tus qauv tsim qhia txog kev nyab xeeb thiab kev ua haujlwm yooj yim, feem ntau yuav tsum tsis muaj sijhawm ntev - kev saib xyuas kev tshaj lij.

Cov khoom faib khoom siv dav siv hauv "system operation scenarios":

Muaj cov kab ntau lawm

Substations thiab tswj chav

Kev thauj mus los, hluav taws xob, thiab kev tsim kho hauv nroog

 

Hauv cov cheeb tsam no, cov txee faib khoom feem ntau yog siv nrog cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, thiab txawm tias huab cua- tswj cov khoom siv hauv network, dhau los ua cov txheej txheem tseem ceeb rau kev ua haujlwm ruaj khov.
 

 

Los ntawm kev tswj hwm kev xav, cov thawv xa khoom feem ntau ua raws li cov txheej txheem ntawm cov cuab yeej siv davhlau ya nyob twg, nrog cov ntsuas tam sim no thiab muaj peev xwm, hais txog kev ua haujlwm nyab xeeb los ntawm cov tsis yog{0}} cov kws tshaj lij.

 

Cov khoom xa tawm, ntawm qhov tod tes, tuaj yeem npog ob qho tib si qis-voltage thiab siab-voltage theem, suav nrog kev tsim qauv nruj dua, kev teeb tsa, thiab kev saib xyuas tshwj xeeb, thiab muaj peev xwm ntau dua, txij li kilowatts mus rau kaum lossis ntau pua kilowatts.

 

 

Vim lub complex internal qauv ntawmkev faib khoom txee, lawv cov kev saib xyuas thiab kev tswj xyuas feem ntau xav tau kev ntsuas kev nyab xeeb, xws li cov khoom siv hluav taws xob tshwj xeeb lossis cov yuam sij thoob ntiaj teb, txhawm rau tiv thaiv cov neeg ua haujlwm tsis raug cai los ntawm kev ua haujlwm tsis raug. Qhov no yog qhov tseem ceeb tshwj xeeb hauv kev lag luam loj thiab kev thauj mus los.

 

Xaus: Qhov txawv yog tsis nyob rau hauv tsos, tab sis nyob rau hauv "system positioning."

Qhov tseem ceeb, lub thawv xa khoom yog "qhov kawg ntawm hluav taws xob," thaum lub txee faib khoom yog "qhov chaw nruab nrab ntawm hluav taws xob."

Cov qub chaw nyob "yuav ua li cas siv hluav taws xob kom zoo," thaum lub sij hawm tom kawg tsom rau "yuav ua li cas tswj lub hwj chim system kom zoo thiab tswj tau."

 

Hauv kev tsim kho vaj tsev, ob qho tib si tsis yog hloov pauv, tab sis muaj kev faib ua haujlwm nruj thiab kev sib koom ua ke hierarchical. Tsuas yog los ntawm kev nkag siab qhov sib txawv ntawm qhov kev tso tawm qhov system tuaj yeem ua tiav kev nyab xeeb, kev ntseeg siab, thiab kev ua haujlwm zoo hauv kev tsim, xaiv, thiab kev siv.