Armored Switchgear yog dab tsi? IEC Standards, Compartment Structure, thiab Yuav Ua Li Cas Qhia Nws rau 35kV Projects

Yog tias koj tab tom qhia txog switchgear rau 35kV substation thiab koj tus kws pab tswv yim cov ntaub ntawv hu rauarmored switchgear, tej zaum koj yuav pom tias ntau cov chaw tsim khoom datasheets piav txog cov khoom siv tib yam lihlau clad switchgear. Qhov no tsis yog qhov tsis sib xws. Ob nqe lus piav txog tib lub hauv paus ntsiab lus - tag nrho compartmentalised, drawout- homnruab nrab voltage switchgearnyob rau hauv uas txhua lub ntsiab lus tseem ceeb yog ib leeg nyob ib puag ncig los ntawm grounded metallic barriers - tab sis lawv los ntawm txawv regional qauv kab lig kev cai. "Armored" yog IEC thiab European engineering lus; "hlau clad" yog ANSI/IEEE North American lo lus.

Kab lus no piav qhia txog tus qauv ntawmarmored switchgear, nws txawv li cas los ntawm lwm cov hlau uas nyob ib puag ncig tsim, qhov cuam tshuam rau IEC cov qauv xav tau, thiab qhov tsis zoo uas koj yuav tsum tau qhia thaum yuav khoom35 kV 35 kV hloovtxee rau ib qhov project substation. Qhov tiag -lub ntiaj teb commissioning reference los ntawm Tanzania project yog suav nrog thaum kawg.

1. Qhov "Armored" txhais li cas tiag - IEC vs ANSI Terminology

Lo lus "armored" nyob rau hauv cov ntsiab lus ntawmarmored switchgearyog hais txog kev siv cov khoom siv hauv av hlau thaiv - armor plates - rau lub cev cais cov sab hauv ntawm lub switchgear los ua ke. Nws yog IEC engineering kev lig kev cai txoj kev piav qhia txog dab tsi ANSI / IEEE cov qauv hu ua "hlau clad."

Raws li IEC 62271-200, tus qauv uas tam sim no tswj hwm AC hlau- kaw switchgear thiab controlgear los ntawm 1 kV mus rau 52 kV, switchgear yog cais los ntawm nws qib ntawm kev sib cais nyob rau hauv plaub Poob Service Continuity (LSC) pawg thiab muab faib chav kawm. Qhov siab tshaj plaws -chav kawm tsim - cov uas muaj cov hlau ua tiav ntawm txhua qhov chaw ua haujlwm - sib raug ncaj qha rau cov engineers hauv Europe, Africa, Middle East, thiab Asia hu ua "armored switchgear" thiab dab tsi North American engineers hu ua "hlau clad switchgear" ib IEEE C37.20.2.

Qhov kev tshwm sim ntawm qhov sib txawv ntawm cov lus no yog tias Suav - tsimarmored switchgeartxee xws li KYN61-40.5, uas yog tsim rau GB 3906 thiab IEC 60298, yuav ua tau raws li cov qauv kev cai uas ib tug IEC 62271-200 los yog IEEE C37.20.2 specification yog hu rau. Cov qauv armored yog cov lus qhia tshwj xeeb, tsis hais tus qauv twg lub cev cov lus siv los piav qhia nws.

Ib qho ntxiv nuance: British engineering kev lig kev cai sau lo lus "armoured" (nrog au). Ob qho kev sau ntawv hais txog tib yam khoom siv. Thaum tshawb nrhiav cov chaw muag khoom lossis cov ntaub ntawv kev kawm, nws tsim nyog siv ob qho kev sau ntawv, tshwj xeeb tshaj yog rau cov haujlwm hauv Tebchaws Meskas.

2. Plaub -Cov Qauv Txheej Txheem: Yuav Ua Li Cas Armored Switchgear Muaj Lub Zog Ua Haujlwm

Lub defining yam ntxwv ntawmarmored switchgearyog tias sab hauv ntawm lub txee tau muab faib ua plaub qhov chaw ua haujlwm, txhua qhov ua tiav los ntawm cov khoom siv hlau hauv av uas tsis muaj lub siab xav qhib ntawm lawv. Kev nkag siab tias txhua qhov chaw ua haujlwm li cas - thiab vim li cas qhov kev sib cais tseem ceeb - yog qhov tseem ceeb rau leej twg qhia lossis tswj cov cuab yeej no.

Busbar Compartment

Lub busbar compartment tsev lub ntsiab tooj liab los yog txhuas busbars uas khiav qhov ntev ntawm lub switchgear lineup, interconnecting tag nrho cov panels nyob rau hauv lub rooj sib txoos. Nyob rau hauv armored siv, qhov no compartment yog tag nrho kaw los ntawm cov nyob ib sab panels los ntawm busbar duct casings, uas ob leeg insulate lub busbar thiab tiv thaiv txhaum lub zog nyob rau hauv ib lub vaj huam sib luag los ntawm kev mus txog lub busbar nyob rau hauv ib tug nyob ze vaj huam sib luag. Qhov kev tsim cov khoom siv hluav taws xob tau txhais tau hais tias qhov ua txhaum ntawm ib lub vaj huam sib luag lub busbar compartment tsis nthuav tawm mus rau lwm qhov ntawm cov kab.

Circuit Breaker Compartment

Lub Circuit Court breaker compartment tsev lub tsheb tshem tau (drawout) tsheb - lub carriage uas lub Circuit Court breaker yog mounted. Qhov no yog lub compartment uas muabarmored switchgearnws qhov tseem ceeb ua haujlwm kom zoo dua. Lub tsheb thauj khoom tuaj yeem txav mus los ntawm peb txoj haujlwm tau hais tseg: Kev Pabcuam (breaker koom nrog busbar thiab cable circuits), Test (thawj circuits disconnected, theem nrab tswj thaiv txuas txuas), thiab cais (tsheb thauj khoom tag nrho tshem tawm). Tsis siv neeg hlau shutters npog cov thawj disconnecting kev sib cuag thaum twg lub tsheb tsis nyob rau hauv lub Service txoj hauj lwm, tiv thaiv kev sib cuag nrog nyob busbar qhov chaw.

Cable Compartment

Lub cable compartment yog nyob ntawm lub hauv paus ntawm lub txee thiab muab qhov chaw txuas rau cov khoom siv hluav taws xob nkag los yog tawm. Nws yog cais los ntawm lub breaker compartment los ntawm ib tug grounded hlau barrier nrog ib tug txhais tau tias qhib tsuas yog rau cov thawj Circuit Court conductors. Lub cable compartment feem ntau yog tsev tam sim no transformers rau kev tiv thaiv relaying, ib tug cable earthing hloov, thiab cable sealing xaus. Nyob rau hauv KYN61-40.5, qhov dav cable compartment haum rau ntau yam kab sib txuas rau ib theem, uas yog ib qho tseem ceeb rau cov ntawv thov kev pub noj tam sim no.

Tsawg-Voltage Control Compartment

Qhov qis -voltage control compartment yog nyob rau sab sauv ntawm lub txee thiab muaj cov kev tiv thaiv relays, metering instruments, tswj keyboards, taw qhia teeb, thiab davhlau ya nyob twg blocks rau lwm yam xov tooj. Nws yog tag nrho sib cais los ntawm lub hauv paus Circuit Court compartments, uas txhais tau hais tias ob txoj hlua yuav nkag tau rau relay kuaj thiab tswj kev ua hauj lwm thaum lub hauv paus Circuit Court tseem nyob - ib tug tseem ceeb feature rau commissioning thiab txij nkawm ntawm energized substations.

Vim li cas Compartmentalisation Matters: Arc Fault Containment

Thaum muaj kev cuam tshuam sab hauv arc tshwm sim hauvarmored switchgear- seb puas yog los ntawm kev puas tsuaj los ntawm kev rwb thaiv tsev, kev sib kis, lossis kev ua haujlwm hloov - lub zog ntawm arc yog nyob rau hauv lub compartment qhov twg nws pib. Txhua chav tsev muaj ib qho kev ywj siab siab nyem channel uas tso cov pa kub tawm ntawm cov neeg ua haujlwm. Cov av nplaum hlau thaiv thaiv cov arc los ntawm kev nthuav tawm mus rau qhov chaw nyob ib sab lossis cov vaj huam sib luag nyob ib sab hauv kab.

Nyob rau hauv tsis yog- armored hlau enclosed switchgear, nyob rau hauv qhov chaw thaiv tsis muaj los yog tsis tiav, arc txhaum nyob rau hauv lub breaker compartment yuav tam sim ntawd mus txog lub nyob busbar, tig ib tug localized txhaum mus rau ib tug kev puas tsuaj ntau - theem tshwm sim. Kev tsim kho armored yog thawj cov qauv kev tiv thaiv tiv thaiv hom kev ua tsis tiav no.

Armored switchgear plaub -compartment qauv daim duab busbar breaker cable tswj cheeb tsam

3. Armored vs Hlau Enclosed vs Qhib Hom: Ib Peb -Txoj Kev Sib Piv

Cov lus hauv qab no muab piv rau peb qhov kev teeb tsa tseem ceeb ntawm qhov nruab nrab voltage switchgear hla cov qauv uas tseem ceeb tshaj plaws rau qhov project specification.

Cov lus ceeb toom: "Hloov kaw (tsis yog{0}}clad)" yog hais txog kev hloov pauv nrog ib qho kev sib koom ua ke thiab txwv tsis pub sab hauv - feem ntau nyob rau hauv lub nplhaib tseem ceeb thiab cov chaw sib txuas sib txuas. Rau 35kV thawj substation daim ntaub ntawv, armored / hlau clad siv yog tus qauv ntawm kev saib xyuas.

4. IEC Cov Qauv rau Armored Switchgear ntawm 35kV

Thaum qhia35 kV 35 kV hloovrau ib txoj haujlwm xa tawm, cov qauv qauv yog thawj qhov uas tus kws pab tswv yim engineering lossis kev siv hluav taws xob yuav nug txog. Cov lus hauv qab no teev cov qauv tseem ceeb uas siv tau rauarmored switchgearntawm 35kV voltage chav kawm, npog ob qho tib si IEC / GB moj khaum siv los ntawm Suav manufacturers thiab IEEE lub moj khaum hais nyob rau hauv North American tej yaam num.

Nco tseg ntawm IEC 60298 vs IEC 62271-200: IEC 60298 yog tus qauv tseem ceeb kom txog thaum nws tau hloov los ntawm IEC 62271-200. Ntau daim ntawv cog lus - tshwj xeeb hauv Africa thiab Middle East - tseem siv IEC 60298 hauv lawv cov kev qhia tshwj xeeb. Cov khoom tsim los rau GB 3906 (uas yog sib haum xeeb nrog IEC 60298) txaus siab rau ob qho tib si. Thaum tsis ntseeg, nug cov chaw tsim khoom kom paub meej tias ua raws li ob qho qauv.

5. Qhov tseem ceeb Specification Parameters rau 35kV Armored Switchgear Projects

Cov lus hauv qab no teev cov kev txwv uas yuav tsum tau lees paub ua ntej muab qhov kev txiav txim rau35 kV 35 kV hloov. Tus nqi qhia yog rau KYN61-40.5armored switchgeartxee; sab xis - txhais tes piav qhia koj qhov project engineer xav tau los txheeb xyuas koj qhov chaw -kev kawm tshwj xeeb hauv network.

Daim ntawv ceeb toom tseem ceeb (raws li DL / T 404): Thaum muab qhov kev txiav txim rau armored switchgear, tus neeg yuav khoom yuav tsum tau qhia: lub ntsiab Circuit Court tus naj npawb thiab ib kab - kab kos duab; pab thiab tswj Circuit Court thaiv schematic; cov qauv, kev ntsuam xyuas, thiab qhov ntau hauv lub txee; seb puas yuav tsum muaj tus tiv thaiv overvoltage ntawm lub tsheb nres tsheb; txee xim; thiab tej yam tshwj xeeb tej yam kev mob ntawm lub installation site. Cov ntaub ntawv ploj lawm nyob rau theem kev txiav txim yog feem ntau ua rau qhov project qeeb.

6. Qhov project tiag tiag: KYN61-40.5 Tanzania 35kV Substation, Lub Ib Hlis 2023

Cov ntaub ntawv hauv qab no yog los ntawm KYN61-40.5armored switchgearlineup ntsia ntawm lub substation project nyob rau hauv Tanzania nyob rau hauv Lub ib hlis ntuj 2023. Nws muaj nyob rau ntawm no los piav qhia txog dab tsi raug teev thiab raug ntsia.35 kV 35 kV hloovxa hauv qhov chaw ua haujlwm tiag tiag sab nraum Suav teb.

"Lub switchgear tau ua dhau qhov peb xav tau txij hnub ib."- Project CEO, Tanzania

Ob lub ntsiab lus ntawm qhov project no tsim nyog hais txog txhua tus kws ua haujlwm ntsuasarmored switchgearrau ib qhov project hauv cov ntsiab lus kev lag luam zoo sib xws. Ua ntej, qhov kev ua haujlwm ntawm kev ua haujlwm - ob qho tib si tiv taus qhov hluav taws xob thiab ib nrab tso tawm tau tshaj qhov kev cog lus tshwj xeeb, tsis yog ua tau raws li nws. Qhov no qhia txog cov npoo zoo uas tau teev tseg thiab lub Hoobkas- simmedium voltage switchgear txeekhoom siv tuaj yeem xa tuaj. Thib ob, tsib-hnub lub sijhawm ua haujlwm qhia tau hais tias nrog kev txhawb nqa chaw taws teeb txaus thiab zoo- npaj cov ntaub ntawv teeb tsa, cov haujlwm hauv cov chaw uas tsis muaj kev txawj ntse hauv zos tsis tas yuav lees txais lub sijhawm ua haujlwm txuas ntxiv.

Nruab nrab siab voltage switchgear txee KYN61-40.5 armored rho 40.5kV IEC txuj

7. Cov ntsiab lus: Yuav siv cov ntaub ntawv no li cas thaum qhia txog Armored Switchgear

Yog tias koj yog ib tus kws tshaj lij, EPC tus neeg cog lus, lossis tus neeg ua haujlwm khoom siv hluav taws xob ua haujlwm ntawm 35kV substation project, cov ntawv txheeb xyuas hauv qab no qhia txog cov kauj ruam ua tau zoo hauv kab lus no.

• Paub meej cov ntsiab lus: seb koj qhov kev qhia tshwj xeeb hais tias "armored," "armoured," lossis "hlau clad," xyuas nrog tus kws pab tswv yim uas tau muab faib ua ke, tshem tawm - hom kev tsim kho. Yog tias nws yog, tag nrho peb nqe lus taw qhia rau tib yam kev xav tau.
• Siv IEC 62271-200 (los yog IEC 60298 rau cov ntawv cog lus qub) raws li cov qauv khoom siv. Rau cov khoom siv hauv Suav teb, lees paub GB 3906 ua raws li tus qauv sib npaug hauv tebchaws.
• Khiav luv luv -circuit tsom xam ua ntej qhia qhov hloov pauv. Qhov ntsuas luv luv -circuit breaking tam sim no (25 kA los yog 31.5 kA) thiab peak withstand tam sim no (63 kA los yog 80 kA) yuav tsum tshaj qhov ntsuas qhov txhaum ntawm qhov taw tes ntawm kev teeb tsa - nrog margin.
• Tshaj tawm qhov chaw ib puag ncig tag nrho: qhov siab tshaj 1000 m, ambient kub siab tshaj 40 degree, los yog txawv atmospheric tej yam kev mob yuav tsum tau cov chaw tsim tshuaj paus siv derating los yog muab tshwj xeeb tsim rwb thaiv tsev. Kev tsis lees paub cov xwm txheej no yog ib qho teeb meem ntawm thaj chaw.
• Qhia meej cov ntaub ntawv xaj xaj yuav tsum tau los ntawm DL/T 404 tag nrho: ib qho - kab kos duab, pab txuas xov tooj schematic, daim ntawv teev cov khoom, thiab cov kev cai tshwj xeeb. Kev txiav txim tsis tiav ua rau qeeb.
• Thov lub Hoobkas lees paub kuaj (FAT) cov ntaub ntawv nrog txhua qhov kev txiav txim. Lub zog zaus tiv taus qhov hluav taws xob thiab kev kuaj ib nrab yuav tsum tau ua ntawm cov khoom sib dhos ua ntej xa khoom.

Cov peev txheej ntsig txog

Rau kev sib piv ncaj qha ntawm kev tshem tawm (tsheb hom) thiab ruaj khov - hom kev teeb tsa rau 35kV cov haujlwm, saib peb cov lus qhia:Truck Type Switchgear vs Taag Type - A 35kV Project Buyer's Decision Guide.

Rau tag nrho cov kev qhia tshwj xeeb thiab cov ntaub ntawv siv rau qhov KYN61-40.5 armored switchgear txee,mus saib ntawm nplooj ntawv KYN61-40.5.

Rau 10kV armored switchgear daim ntawv thov,saib KYN28A-12 Armored Drawout AC Hlau-Clad Switchgear nplooj ntawv khoom.