1. Cov ntsiab lus tseem ceeb thiab kev ua haujlwm sib txawv ntawm cov khoom siv hluav taws xob siab thiab qis qis
Lub txee faib khoom, tseem hu ua cov khoom siv hluav taws xob faib hluav taws xob, yog cov khoom siv hluav taws xob ua tiav uas sib txuas cov keyboards, kev tiv thaiv, ntsuas ntsuas, thiab tswj cov khoom. Nws yog feem ntau siv rau kev txais, faib, tiv thaiv, thiab tswj hluav taws xob hluav taws xob. Raws li qhov ntsuas qhov ntsuas hluav taws xob, nws tuaj yeem muab faib ua qib siab -voltage faib cov txee thiab qis-voltage faib cov txee, nrog rau qhov sib txawv hauv cov ntawv thov hierarchy, cov khoom siv, thiab cov qauv kev nyab xeeb.
1.1 Tsawg Voltage Distribution Txee(Cov cuab yeej tseem ceeb rau Terminal Fais Fab Distribution)
Cov khoom siv hluav taws xob tsawg tsawg yog cov khoom siv hluav taws xob ua tiav rau cov khoom siv hluav taws xob thiab yog cov cuab yeej siv hluav taws xob ntau tshaj plaws hauv ntau yam haujlwm engineering. Nws koom ua ke cov khoom tseem ceeb xws li Circuit Court breakers, contactors, relays, power meters, busbars, and wiring terminals, and is applicable to low-voltage power grid of 1000V and below.
Nws lub luag haujlwm tseem ceeb suav nrog kev tiv thaiv overload, tiv thaiv luv luv, tiv thaiv kev xau, hloov hluav taws xob, thiab tiag - lub sijhawm saib xyuas lub zog. Nws muab cov khoom siv hluav taws xob ruaj khov thiab muaj kev nyab xeeb rau cov cuab yeej tsim khoom, teeb pom kev zoo, cov khoom siv hluav taws xob ua lag luam, thiab kev thauj mus los hauv pej xeem. Raws li lub davhlau ya nyob twg hub ntawm tag nrho cov khoom siv hluav taws xob, nws muaj cov qauv kev cog lus, kev ua haujlwm yooj yim, thiab kev saib xyuas yooj yim.
1.2High Voltage Distribution Txee(Cov khoom siv tseem ceeb rau kev xa hluav taws xob loj)
Lub siab hluav taws xob faib txee (tseem hu ua high voltage switchgear) yog cov cuab yeej tshaj lij rau siab -voltage fais fab kis, faib thiab tswj. Nws yog tsuas yog siv rau hauv cov kab hluav taws xob tseem ceeb, cov chaw tsim hluav taws xob, cov chaw lag luam loj thiab cov lag luam mining, thiab siab -voltage fais fab kev sib txuas ntawm cov phiaj xwm loj txawv teb chaws, ua cov haujlwm tseem ceeb ntawm kev txais hluav taws xob los ntawm kab sib chaws sab saud thiab xa hluav taws xob mus rau qis dua - theem hluav taws xob faib hluav taws xob.
Nruab nrog kev ua haujlwm siab -voltage Cheebtsam suav nrog high voltage Circuit Court breakers, disconnectors, earthing switches, high voltage transformers thiab fuses, nws nta siab - lub zog rwb thaiv tsev, arc extinction, breakdown resistance thiab anti- cuam tshuam kev ua tau zoo. Ntxiv nrog rau kev faib hluav taws xob yooj yim thiab kev hloov hluav taws xob, nws txhawb cov chaw taws teeb tswj, kev ceeb toom ua txhaum thaum ntxov thiab kev tiv thaiv kab hluav taws xob ntau dhau, ua kom muaj kev nyab xeeb thiab ruaj khov ua haujlwm ntawm tag nrho siab -voltage fais fab mov system ntawm qhov project. Nws txais cov qauv siab dua hauv qib kev nyab xeeb, kev ua haujlwm rwb thaiv tsev thiab qib kev tiv thaiv ntau dua li cov khoom siv hluav taws xob tsawg.
1.3 Qhov sib txawv ntawm cov tub ntxhais kawm siab thiab qis voltage faib txee
Ua kom muaj kev sib koom ua ke, cov khoom siv hluav taws xob siab thiab tsis tshua muaj hluav taws xob tsim ua tiav lub zog hluav taws xob ntawm "siab-voltage fais fab tuag thiab qis-voltage fais fab faib". Lawv qhov sib txawv tseem ceeb yog tshwm sim hauv peb yam:
Qib voltage: Cov khoom siv hluav taws xob muaj hluav taws xob ua haujlwm tseem ceeb hauv kab hluav taws xob xa mus, thaum cov khoom siv hluav taws xob tsawg ua haujlwm siv hluav taws xob ntawm cov khoom siv davhlau ya nyob twg;
Cov qauv kev ua haujlwm: High voltage txee tsom rau kev tiv thaiv rwb thaiv tsev thiab siab - siab arc extinction, thaum uas tsis tshua muaj hluav taws xob txee tsom rau lub davhlau ya nyob twg overload thiab tiv thaiv to;
Daim ntawv thov Scenario: Cov khoom siv hluav taws xob siab yog siv rau kev faib hluav taws xob dav dav thiab cov chaw sib txuas ntawm cov phiaj xwm, thaum cov khoom siv hluav taws xob tsawg yog siv rau hauv kev cob qhia, cov tsev thiab cov khoom siv hluav taws xob hluav taws xob hluav taws xob.
2. Core Specifications rau Voltage Level Adaptation of Distribution Cabinets in Overseas Projects
Thaum cov khoom xa tawm hauv tsev ua raws li kev sib koom ua ke 380V / 220V, 50Hz daim phiaj tus qauv, qib voltage, zaus thiab kev ua raws li cov qauv kev lag luam txawv txav thoob plaws ntiaj teb. Rau kev hloov kho, xa tawm thiab EPC kev tsim kho ntawm cov chaw xa khoom txawv teb chaws, kev hloov kho qhov hluav taws xob yog qhov tseem ceeb ua ntej kom ntseeg tau tias cov cuab yeej ua raws, tsis txhob rov ua haujlwm dua thiab dhau qhov kev lees paub hauv zos. Cov phiaj xwm hluav taws xob thoob ntiaj teb tau muab faib ua ob lub tshuab loj: 50Hz European tus qauv thiab 60Hz American tus qauv system.
2.1 Txawv Teb Chaws Tsawg-Voltage Distribution Standards and Cabinet Adaptation Solutions
Tsawg-voltage tis yog qhov feem ntau hloov kho tsis tau yuam kev-nruab ntu hauv cov haujlwm txawv teb chaws, nrog rau qhov sib txawv ntawm qhov tshwj xeeb voltage, lub zog zaus thiab cov kab hluav taws xob nyob hauv ntau cheeb tsam.
1. 50Hz European Standard System (Cov Kev Pabcuam Tseem Ceeb: Europe, Southeast Asia, Middle East, Africa, Australia)
Raws li tus qauv siv dav dav tshaj plaws thoob ntiaj teb, qhov system no siv ib zaug -theem voltage ntawm 230V thiab peb -theem kab voltage ntawm 400V (3-theem 4-wire system).
Kev Cai Kho Kom Zoo: Txawv teb chaws qis -voltage tis txee yuav tsum tau customized nruj me ntsis raws li 400V / 230V, 50Hz tsis. Qhov ntsuas qhov tseem ceeb ntawm tag nrho cov khoom siv sab hauv suav nrog cov ntsuas hluav taws xob, ntsuas hluav taws xob, cov contactors thiab busbars yuav tsum sib npaug ntawm 50Hz fais fab zaus. Cov txheej txheem xaim, kev tiv thaiv kev tiv thaiv thiab kev teeb tsa hauv txee yuav tsum ua raws li IEC thoob ntiaj teb cov qauv hluav taws xob, tsim nyog rau feem ntau cov haujlwm txawv teb chaws hauv Asia, Africa thiab Europe.
2. 60Hz American Standard System (Kev Pabcuam Tseem Ceeb: North America, Qhov Chaw ntawm South America, Caribbean Regions)
Daim phiaj hluav taws xob North American txawv heev los ntawm cov qauv thoob ntiaj teb uas tsis muaj kev sib koom ua ke 380V / 400V specification. Nws cov kev ntsuas hluav taws xob ntau suav nrog ib zaug -theem 120V / 240V thiab peb-theem 208V, 240V, 480V.
Kev Cai Kho Kom Zoo: Cov khoom faib khoom yuav tsum ua raws li ANSI, NEC thiab UL American tus qauv specifications. Tag nrho cov khoom siv hluav taws xob yuav tsum sib haum nrog 60Hz fais fab zaus tsis muaj. Cov qauv txee, cov txheej txheem thaiv, cov qauv hauv av thiab kev tiv thaiv kev tiv thaiv yuav tsum ua raws li cov cai hauv zos, thiab cov txheej txheem hauv tsev tsis raug tso cai rau kev thov ncaj qha.
3. Cov qauv tshwj xeeb hauv cheeb tsam
Ib tug me me ntawm cov haujlwm uas tsis muaj hnub nyoog thiab cov teb chaws hauv cheeb tsam tseem tau txais cov qauv 220V / 380V, 50Hz tus qauv, uas yuav tsum muaj cov kev daws teeb meem tshwj xeeb hauv txee raws li -site grid parameters.
2.2 Txawv Teb Chaws Siab -Voltage Distribution Standards and Cabinet Adaptation Solutions
Txawv teb chaws siab-voltage tis txee feem ntau yog siv rau siab -voltage txais tos thiab lub ntsiab kab hluav taws xob xa mus rau hauv tej yaam num, tsom rau nruab nrab thiab high voltage daim ntaub ntawv. Cov theem hluav taws xob thiab lub zog zaus ncaj qha txiav txim siab lub txee rwb thaiv tsev tsim, kev xaiv cov khoom siv thiab cov qauv kev nyab xeeb kev nyab xeeb.
1. Ntiaj teb no Mainstream High -Voltage Levels
50Hz cheeb tsam (Asia, Africa, Middle East, Australia): Mainstream voltage theem yog 11kV thiab 33kV, nrog rau tus kheej tej yaam num saws 6.6kV thiab 22kV;
60Hz cheeb tsam (North America, South America): Mainstream voltage theem npog 13.8kV, 24.9kV thiab 6.6kV.
2. Core Adaptation Rules rau High-Voltage txee
Rwb thaiv tsev Adaptation: Cov ntaub ntawv rwb thaiv tsev txee, kev nyab xeeb hluav taws xob clearances thiab creepage deb yuav tsum sib haum rau hauv zos siab -voltage theem kom tshem tawm cov kev pheej hmoo ntawm high -voltage breakdown thiab hluav taws xob to;
Kev hloov kho zaus: Kev sib xyaw 50Hz thiab 60Hz cov cuab yeej raug txwv nruj heev. High-voltage transformers, tiv thaiv cov cuab yeej thiab cov txheej txheem kev khiav hauj lwm yuav tsum ua kom haum raws li cov kab sib chaws hauv zos;
Daim ntawv pov thawj Adaptation: Cov haujlwm hauv Tebchaws Europe, Asia thiab Africa yuav tsum ua raws li IEC cov qauv, thaum Asmeskas cov haujlwm ua raws li IEEE cov qauv. Txhua yam khoom siv yuav tsum tau txais daim ntawv pov thawj kev ua raws cai hauv cheeb tsam kom lav qhov kev lees paub zoo thiab kev pom zoo.
2.3 Peb Cov Lus Qhia Tseem Ceeb rau Kev Siv Hluav Taws Xob Txawv Tebchaws
Ua ntej, Ua Ntej Voltage Parameter Confirmation: Ua ntej txee customization, txheeb xyuas peb qhov tseem ceeb tsis pub dhau - ntawm - qhov chaw siab -voltage incoming voltage, low-voltage outgoing voltage thiab grid zaus - raws li lub hauv paus rau cov khoom tsim thiab kev tsim khoom;
Qhov thib ob, Unified Standards rau tag nrho cov Project System: Tag nrho cov khoom siv hluav taws xob siab thiab tsis tshua muaj hluav taws xob hauv ib qhov project yuav tsum hloov mus rau tib lub phiaj xwm. Kev sib xyaw Asmeskas-tus qauv thiab European- cov cuab yeej txheem raug txwv los tiv thaiv kev tsis sib haum xeeb;
Thib peb, Localized Optimization nyob rau hauv Kab nrog Regional Codes: Raws li qhov ua tiav qhov kev hloov pauv hluav taws xob, kho cov qib kev tiv thaiv txee, cov khoom siv, cov txheej txheem hauv av thiab kev tiv thaiv qhov tseem ceeb raws li cov khoom siv hluav taws xob hauv zos kom tau raws li kev tsim kho hauv cheeb tsam thiab kev lees paub.
3. Cov lus xaus
Cov khoom siv hluav taws xob siab thiab qis qis yog cov txheej txheem tseem ceeb rau kev tsim hluav taws xob txawv teb chaws. Kev paub txog cov haujlwm tseem ceeb thiab cov ntsiab lus ntawm ob hom txee lays lub hauv paus ruaj khov rau kev xaiv cov khoom siv. Hauv tshwj xeeb, kev hloov kho kom raug rau cov qib voltage hauv cheeb tsam, lub zog zaus thiab cov qauv kev lag luam yog qhov tseem ceeb lav rau kev xa tawm du, kev ua haujlwm nyab xeeb thiab ua raws kev lees paub ntawm cov khoom siv hauv txee.
