35kV Switchgear Xaiv: 5 Cov Lus Qhia Tshwj Xeeb Uas Uas Ua Rau Qhov Kev Ua Tsis Taus - thiab Yuav Ua Li Cas Kom Zam Lawv

Thaum cov engineers qhia 35kV switchgear, cov npoo ntawm qhov yuam kev yog nqaim. Kev ntsuas luv luv -circuit rating, ib qho kev saib xyuas IP chav kawm, lossis cov txheej txheem rwb thaiv tsev tsis sib haum tsis ua rau muaj kev ua haujlwm tsis txaus - nws ua rau cov khoom siv tsis ua haujlwm, tsis npaj txhij, thiab qhov phem tshaj plaws, arc flash txheej xwm uas ua rau muaj kev phom sij rau cov neeg ua haujlwm thiab ua kom puas tsuaj.

Cov lus qhia no hais txog tsib qhov kev ua yuam kev ntau tshaj plaws hauv 35kV hlau-clad switchgear procurement, piav qhia txog lawv qhov tshwm sim tiag tiag hauv ntiaj teb, thiab txhais cov qauv xaiv raug rau txhua tus. Qhov twg muaj feem cuam tshuam, KYN61-40.5 armored drawout switchgear los ntawm Gangheng Electric yog siv los ua ib qho kev siv cov ntsiab lus - tsis yog kev muag khoom, tab sis vim tias nws cov ntawv luam tawm tsis qhia qhov tseeb 35kV vaj huam sib luag zoo li hauv kev xyaum.

Qhov yuam kev 1: Qhia qhov ntsuas hluav taws xob tsis suav nrog IEC Rwb thaiv kab npoo

Dab tsi mus tsis ncaj ncees lawm:Cov kws tshaj lij qhia txog kev hloov pauv ntawm nominal system voltage - 35kV - yam tsis tau lees paub tias IEC cov qauv xav tau cov cuab yeej ntsuas ntawm 40.5kV rau nominal 35kV systems. Qhov sib txawv ntawm 5.5kV tsis yog kev ua haujlwm. Nws tshwm sim los nqus cov overvoltages los ntawm kev hloov surges thiab xob laim. Cov khoom siv uas tau teev tseg raws nraim 35kV yuav raug kev nyuaj siab tshaj nws qhov kev txwv thaum lub sijhawm ua haujlwm hauv kab sib chaws.

Qhov tshwm sim:Accelerated rwb thaiv tsev degradation. Dab tsi tshwm sim thaum xub thawj yog ib feem ntawm kev tso tawm thaum kawg ua rau dielectric tawg - feem ntau yog lub sijhawm phem tshaj plaws, hauv qab load.

Qhov tseeb specification:

Rated voltage:40 ,5kv(IEC xaiv rau nominal 35kV systems)

Fais fab zaus withstand voltage (1 min):95kv ua

Lightning impulse withstand voltage (BIL):1 85kv(phase-to- ntiaj teb) /2 15kv(thov qhib qhib)

KYN61-40.5 yog ntsuas ntawm 40.5kV nrog raws nraim cov rwb thaiv tsev theem - 95/115kV fais fab zaus tiv taus thiab 185/215kV BIL - cuam tshuam tus qauv IEC 62271-200 ua raws li 35kV kev faib tawm.

Ua yuam kev 2: Tsis qhia luv luv -Circuit Withstand Rating

Dab tsi mus tsis ncaj ncees lawm:Qhov no yog qhov feem ntau qhov yuam kev ntawm kev yuav khoom hauv 35kV switchgear. Luv - Circuit Court withstand rating (Ith) feem ntau xaiv raws li kev kwv yees qhov ua txhaum theem thaum lub sij hawm tsim qhov project - yam tsis muaj npoo rau daim phiaj ntxiv dag zog lossis kev nthuav dav hauv network. Ib lub chaw nres tsheb uas tau noj los ntawm 31.5kA qhov txhaum- theem kab sib chaws, teev nrog 25kA switchgear, yuav muaj kev ua haujlwm tsis zoo thiab thermal tsis ua haujlwm thawj zaug uas muaj qhov yuam kev tshwm sim.

Qhov tshwm sim:Thaum lub sijhawm ua txhaum, lub vaj huam sib luag tau ntsuas qis dua qhov ua txhaum qhov tseeb tsis tsuas yog mus ncig - nws ua tsis tiav. Busbars deform, compartment barriers yog ua txhaum cai, thiab arc zog propagates thoob plaws lineup. Qhov no tsis yog qhov ua tsis tau rov qab. Nws yog qhov ua tiav kev hloov pauv vaj huam sib luag, nrog rau lub sijhawm poob qis hauv lub lis piam, tsis yog teev.

Qhov tseeb specification:Nco ntsoov txheeb xyuas qhov luv luv tam sim no -circuit tam sim no (Isc) ntawm qhov taw tes ntawm kev teeb tsa, tom qab ntawd xaiv cov ntsuas luv luv- lub sijhawm tiv thaiv tam sim no nrog tsawg kawg ib kauj ruam ntawm cov npoo:

KYN61-40.5 yog muaj nyob rau hauv ob qho tib si 25kA thiab 31.5kA Itth kev ntsuas, nrog rau qhov sib txuam ncov tiv taus tam sim no ntawm 63kA thiab 80kA raws, thiab 4-thib ob tiv thaiv lub sijhawm - txaus rau kev tiv thaiv sab saud kom ua haujlwm thiab tshem tawm qhov txhaum ua ntej lub vaj huam sib luag raug cuam tshuam.

Qhov yuam kev 3: Tsis quav ntsej IP Kev Tiv Thaiv Chav Kawm rau Kev Txhim Kho Ib puag ncig

Dab tsi mus tsis ncaj ncees lawm:IP4X yog tus qauv ntsuas qhov ntsuas rau sab hauv tsev 35kV hlau-clad switchgear. Engineers ua hauj lwm rau tej yaam num nyob rau hauv ib puag ncig muaj plua plav - cement nroj tsuag, steel mills, mining chaw - nquag lees txais IP4X yam tsis tau soj ntsuam seb qhov chaw ua haujlwm puas tsim cov khoom me me hauv qab 1mm, uas IP4X tsis suav nrog. Cov av noo zoo ib yam li kev kwv yees tsis zoo: switchgear ntsia nyob rau hauv ntug dej hiav txwv los yog siab - qhov chaw av noo yam tsis muaj cov ntaub thaiv npog txaus los taug qab thiab nkag mus rau qhov tsis ua tiav ntawm kev thaiv busbar hauv ob mus rau peb xyoos ntawm kev ua haujlwm.

Qhov tshwm sim:Rwb thaiv tsev kab mob ua rau ib nrab tso tawm, uas nyob rau hauv ib tug kaw compartment accelerates rau internal arc txheej xwm. Cov no yog kim kho thiab txaus ntshai rau cov neeg ua haujlwm.

Qhov tseeb specification:

Standard ib puag ncig sab hauv tsev:IP4X(lub kaw lus kaw),IP2X(breaker compartment qhov rooj qhib, trolley hauv qhov chaw sim)

Cov huab cua phem heev los yog ntug hiav txwv dej: tham txog IP5X lossis siab dua nrog cov chaw tsim khoom

Ib txwm txheeb xyuas qhov ntsuas chav sib cais sib cais - nws feem ntau qis dua qhov ntsuas qhov thaiv thaum lub qhov rooj qhib

KYN61-40.5 nqa IP4X enclosure ntsuam xyuas thiab IP2X nyob rau hauv lub breaker compartment nrog lub qhov rooj qhib - qhov sib txawv uas tseem ceeb rau kev khiav hauj lwm, txij li thaum cov neeg ua hauj lwm saib xyuas ib txwm nkag mus rau breaker compartments thaum lub busbar tseem energized.

Rau kev teeb tsa sab nraud cov qauv txheej txheem - saum toj 1,000m qhov siab, qhov kub thiab txias tshaj 40 degree, lossis thaj tsam seismic siab tshaj qhov siv 8 - cov kev txwv no yuav tsum tau tshaj tawm thaum lub sijhawm xaj. KYN61-40.5 tus qauv specification npog qhov siab txog li 1,000m thiab ambient kub ntawm -15℃mus rau +40℃; tej yaam num sab nraum lub hnab ntawv no yuav tsum tau xyuas engineering.

Qhov yuam kev 4: Xaiv Kho -Hom Switchgear qhov twg Drawout Configuration Yuav tsum tau

Dab tsi mus tsis ncaj ncees lawm:Tsau - hom (tsis yog- thim rov qab) switchgear tau qis dua tus nqi pem hauv ntej thiab tsim nyog rau kev ruaj khov, qis- hloov- zaus siv. Nws nquag teev - tsis raug - rau substations uas ua hauj lwm muaj loads nrog high switching zaus, los yog rau renewable zog installation qhov twg daim phiaj - kev twb kev txuas switching yog niaj hnub. Qhov kev ua yuam kev yuav tshwm sim thaum thawj zaug txij nkawm: nrog lub ntsuas hluav taws xob ruaj khov, tag nrho lub vaj huam sib luag yuav tsum tau de-energized, cais, thiab kaw tawm kom nkag mus rau hauv Circuit Court breaker. Nyob rau hauv lub substation nyob, qhov no txhais tau hais tias ib qho kev npaj tawm.

Qhov tshwm sim:Rau cov chaw ua liaj ua teb cua lossis PV cog cog uas yuav tsum tau ua haujlwm hloov pauv tsis tu ncua thiab hloov pauv sai sai, ruaj khov - hom switchgear ua rau lub sijhawm ua haujlwm tsis zoo tshaj nws cov nqi pib hauv thawj xyoo ua haujlwm.

Qhov tseeb specification:Rau txhua daim ntawv thov muaj xws li:

• Kev hloov pauv ntau zaus
• Kev sib txuas hluav taws xob txuas ntxiv (PV, cua, cia)
• Cov khoom lag luam uas yuav tsum muaj nyob hauv - kev tu lub tsheb npav

Substations uas txo qhov kev ncua sij hawm ncua sij hawm yog daim ntawv cog lus ... kos tawm (tshem tawm) kev teeb tsa yog qhov kev xaiv raug. Kev tsim qauv kos duab tso cai rau lub tshuab hluav taws xob hluav taws xob tshem tawm mus rau qhov chaw sim - hluav taws xob cais tawm tab sis nrog lub busbar tseem nyob - ua kom muaj kev soj ntsuam xyuas, kuaj, lossis hloov yam tsis muaj qhov hluav taws xob.

KYN61-40.5 siv lub hau ntswj- txiv ntseej propulsion mechanism nrog lub clutch overrunning rau trolley txav. Tus kheej -locking ntsia hlau tiv thaiv kev sib tsoo hauv qab electromagnetic rog thaum muaj xwm txheej txhaum; lub overrunning clutch txiav tawm ntawm qhov kawg txoj haujlwm los tiv thaiv kev puas tsuaj thaum lub sijhawm tshem tawm sai. Nyob rau hauv Tanzania commissioning project, ib tug faulty breaker tau txheeb xyuas thaum lub sij hawm ua ntej - energization xeem thiab hloov tsis cuam tshuam lub sij hawm commissioning - ib tug ncaj txim ntawm lub drawout architecture.

Ua yuam kev 5: Tsis pub dhau tsib-Kev Tiv Thaiv Kev Tiv Thaiv Kev Tiv Thaiv los ntawm Cov Lus Qhia

Dab tsi mus tsis ncaj ncees lawm:Hauv kev lag luam uas qhov kev yuav khoom tau tsav los ntawm kev sib piv tus nqi, cov kev xav tau ntawm cov khoom siv sib cuam tshuam feem ntau tsis tuaj ntawm kev sib tw tshwj xeeb, lossis sab laug rau kev txiav txim siab ntawm cov chaw tsim khoom. Qhov tshwm sim yog switchgear uas ua tau raws li kev ntsuas hluav taws xob tab sis tsis muaj kev ua haujlwm ruaj ntseg tsim nyog rau cov chaw nyob hauv substation. Qhov no tshwj xeeb tshaj yog nyob rau hauv tej yaam num procured los ntawm intermediary traders es tsis ncaj qha los ntawm manufacturers.

Qhov tshwm sim:Tsis tas yuav tsum muaj kev cuam tshuam, kev ua haujlwm tsis raug cai - kaw lub breaker mus rau lub tsheb thauj neeg mob hauv av, tshem tawm lub tsheb thauj neeg nyob, qhib qhov kev cais tawm hauv qhov thauj khoom - tshwm sim nrog kev txheeb xyuas tsis tu ncua hauv thaj chaw substation. Cov xwm txheej no tsis yog tus neeg ua haujlwm yuam kev ib leeg; lawv yog cov tsis ua tiav ntawm engineering specification.

Qhov tseeb specification:Yuav tsum tau "tsib-kev tiv thaiv" mechanical interlocking raws li qhov yuav tsum tau tsim feature, npog:

1. Kev tiv thaiv ntawm kev kaw qhov hluav taws xob mus rau earthed busbar
2. Tiv thaiv kom tshem tawm lossis ntxig trolley hauv qab thauj khoom
3. Tiv thaiv kev kaw lub ntiaj teb hloov thaum busbar nyob
4. Kev tiv thaiv kev nkag mus rau cable compartment thaum Circuit Court nyob
5. Kev tiv thaiv kaw busbar isolator nrog breaker nyob rau hauv kev pab cuam txoj hauj lwm

KYN61-40.5 siv tag nrho tsib qhov kev cuam tshuam raws li qhov yuav tsum tau ua ntawm cov khoom siv kho tshuab - tsis yog xaiv tau ntxiv-ons. Hlau kev nyab xeeb shutters cia li cais cov neeg nyob sib ze thaum lub trolley txav, thiab kev sib cuam tshuam raws li cov neeg kho tshuab tswj tsis hais tus neeg teb xov tooj ua haujlwm. Qhov no tau txheeb xyuas los ntawm lub vaj huam sib luag ua raws li GB 3906, GB / T 11022, DL / T 404, thiab IEC 60298.

KYN61-40.5: Kev Qhia Kom raug 35kV Hlau-Clad Switchgear

CovKYN61-40.5 armored drawout hlau-clad switchgearlos ntawm Gangheng Electric sawv cev rau qhov kev ntsuas tshwj xeeb tiv thaiv uas tsib qhov yuam kev saum toj no ntsuas. Nws tus qauv tsim ncaj qha hais txog txhua hom kev ua tsis tiav: 40.5kV ntsuas qhov ntsuas hluav taws xob nrog qhov raug IEC rwb thaiv tsev theem, luv- kev ntsuas hluav taws xob mus txog 31.5kA / 80kA ncov, IP4X enclosure tiv thaiv, tshem tawm cov khoom siv hluav taws xob nrog precision trolley mechanics, thiab yuav tsum tau tsib-kev tiv thaiv txhua yam kev cuam tshuam.

Lub txee yog tsim los ntawm zinc- txhuas coated steel phaj nrog bolted los ua ke - ib txoj kev tsim uas tswj qhov ntev ntev ntawm lub laub thiab txee rau sub- millimeter precision, kom ntseeg tau tias muaj kev sib koom ua ke trolley thoob plaws lub vaj huam sib luag lub neej. Plaub qhov sib cais tag nrho (relay instrumentation, Circuit Court breaker, cable, thiab busbar) txhua tus muaj kev ywj pheej siab nyem raws: nyob rau hauv qhov kev tshwm sim ntawm ib sab hauv, lub zog yog vented yam xyuam xim upward, muaj nyob rau hauv cov cuam tshuam compartment, thiab tiv thaiv los ntawm propagating thoob plaws lineup.

Rau cov haujlwm hauv kev siv hluav taws xob tauj dua tshiab - ib qho kev loj hlob ntawm 35kV substation procurement thoob ntiaj teb - KYN61-40.5 suav nrog kev tsim qauv kev sib haum xeeb, kev tiv thaiv kev tiv thaiv, thiab kev tiv thaiv hluav taws xob rov qab, ua kom haum rau cov khoom hloov pauv hloov pauv ntawm cov cua thiab PV qhov chaw uas cov pa hluav taws xob hloov pauv tsis tau ua kom zoo dua.

Cov khoom txhawb nqa ob qho tib si ZN85-40.5 nqus Circuit Court breakers (hauv tsev) thiab SF6 breakers los ntawm Schneider (SF series) los yog Alstom (FP series), tso cai rau lub breaker specification kom phim rau qhov project yuav tsum thiab lub zos tu muaj peev xwm ntawm nws tus kheej ntawm lub vaj huam sib luag xaiv.

Kev tshaj tawm cov ntaub ntawv los ntawm Lub Ib Hlis 2023 Tanzania project: fais fab zaus tiv taus qhov hluav taws xob 95kV / 1 feeb, ib nrab tso tawm qis dua 10pC - ob qho tib si zoo dua li cov ntawv cog lus. Kev ua kom muaj zog tag nrho tau ua tiav nyob rau hauv tsib hnub ntawm kev ntim khoom, tawm tsam kev lag luam hauv paus ntawm xya hnub, tau qhib los ntawm 3D animation installation kev taw qhia uas daws teeb meem busbar compartment alignment yam tsis tas yuav tsum tau ntawm -site kev txhawb nqa.

Rau tej yaam num ntawm 10kV voltage theem uas yuav tsum tau tib drawout hlau -clad architecture, KYN28A-12 yog cov khoom Gangheng coj. Rau tej yaam num nrog kev teeb tsa ib puag ncig lossis hluav taws xob tsis zoo sab nraum KYN61-40.5 tus qauv kev qhia tshwj xeeb, Gangheng muab kev tshuaj xyuas engineering thiab kev daws teeb meem tsis muaj nqi ntxiv.

Specification Checklist: 35kV Hlau -Clad Switchgear

Siv daim ntawv teev npe no ua ntej ua tiav ib qho 35kV switchgear kev sib tw specification: