Electrical Switchgear yog dab tsi? Cheebtsam, Hom thiab Kev Ua Haujlwm
Hluav taws xob switchgear yog ib qho kev sib dhos ntawm kev hloov, kev tiv thaiv, kev tswj thiab kev sib cais cov cuab yeej siv los tswj cov hluav taws xob circuits. Nyob ntawm tus qauv tsim, nws yuav muaj cov kab hluav taws xob, cov keyboards, disconnectors, busbars, tiv thaiv relays, ntsuas transformers thiab metering li. Nws lub hom phiaj tsis yog tsuas yog faib hluav taws xob: nws kuj tseem pab kom tshem tawm cov teeb meem hluav taws xob, tswj cov khoom noj thiab tsim kom muaj kev sib cais uas yuav tsum tau ua rau kev saib xyuas. Qhov kev npaj meej sib txawv nrog cov chav kawm voltage, kev teeb tsa, kev tiv thaiv thiab cov qauv siv tau.
Rau leej twg nug hluav taws xob switchgear yog dab tsi, nws pab cais cov haujlwm ua haujlwm ntawm lub cev txee. Circuit Court breaker yog ib feem; lub switchgear los ua ke tswj ntau yam khoom siv los ua ib feem ntawm lub zog hluav taws xob. JSGK nthuav qhia high-voltage switchgear, low-voltage txee thiab lub nplhaib tseem ceeb hauv nws cov khoom siv hluav taws xob catalog, muab qhov project buyers khoom-tsev neeg pib cov ntsiab lus es tsis yog ib tug universal configuration.
Hluav taws xob Switchgear Ua li cas?
Switchgear muaj peb txoj haujlwm zoo sib xws: tswj, tiv thaiv thiab cais tawm. Txhua txoj haujlwm yuav siv cov khoom sib txawv, txawm tias muaj ntau lub luag haujlwm tau sib sau ua ke hauv ib kab.
Control: Qhib, Kaw thiab Routing Circuits
Hloov cov cuab yeej cia cov neeg ua haujlwm lossis tswj cov tshuab qhib thiab kaw cov kab hluav taws xob uas raug xaiv, raws li lawv cov kev ua haujlwm. Cov khoom xa tuaj, cov tsheb thauj mus los thiab cov khoom xa tawm tuaj yeem raug teeb tsa kom phim cov kab kos ib kab. Ib qho kev hloov khoom siv tsim nyog rau kev thauj khoom tam sim no tsis tuaj yeem ntsuas los cuam tshuam rau luv luv Circuit Court; cov khoom specification yuav tsum txheeb xyuas nws cov dej num.
Kev Tiv Thaiv: Tshawb nrhiav thiab tshem tawm qhov yuam kev
Kev tiv thaiv kev ua haujlwm tuaj yeem teb rau overcurrent, luv circuits, lub ntiaj teb faults los yog lwm yam kev mob uas txhais los ntawm lub system tsim. Ib qho kev tiv thaiv relay tuaj yeem ntsuas kev ntsuas thiab pib taug kev, thaum lub ntsuas hluav taws xob tsim nyog cuam tshuam qhov cuam tshuam tam sim no. Qee cov khoom siv hluav taws xob tsawg suav nrog kev tiv thaiv thiab cuam tshuam hauv ib chav. Tsis muaj qhov muaj nyob ntawm ib lub relay lossis ib daim ntawv lo uas hais tias 'tiv thaiv' ua pov thawj tias qhov kev ua tiav tiav tau ua haujlwm.
Kev rho tawm: Tsim kom muaj kev nyab xeeb hluav taws xob ciam teb
Kev cais tawm txawv ntawm kev cuam tshuam tam sim no. Lub disconnector lossis lwm qhov kev sib cais yog xaiv thiab ua haujlwm raws li nws cov haujlwm ntsuas thiab cov kev xav tau ntawm kev teeb tsa. Kev tu vaj tse yuav tsum muaj cov txheej txheem kev nyab xeeb uas tau tso cai rau ntawm qhov chaw, kev txheeb xyuas thiab kev tsim nyog hauv av lossis hauv av; lub txee hloov chaw ib leeg yuav tsum tsis txhob muab pov thawj tias kev ua haujlwm tuaj yeem pib.
| Muaj nuj nqi | Yam khoom siv | Tus neeg yuav khoom yuav tsum paub meej |
|---|---|---|
| Tswj | Hloov, breakers, contactors los yog kev khiav hauj lwm mechanisms | Qhov kev ua haujlwm ntawm Circuit Court thiab hloov lub luag haujlwm |
| Kev tiv thaiv | Relays, sensors, tiv thaiv mus txawv tebchaws units thiab ntsuas cuam tshuam cov khoom siv | Kev ua txhaum theem, kev sib koom tes thiab kev tiv thaiv yuav tsum tau ua |
| Kev cais tawm | Disconnectors, earthing kev cai thiab interlocks qhov twg tsim | Kev cais tawm thiab qhov kev xav tau kev nyab xeeb ntawm qhov project |
Dab tsi Cheebtsam nyob hauv Switchgear?
Cov khoom siv hluav taws xob hloov hluav taws xob nyob ntawm seb cov khoom puas yog LV sib dhos, MV hlau-kab kab los yog lwm tus qauv. Cov hauv qab no yog cov haujlwm ua haujlwm, tsis yog kev thov tias txhua lub txee muaj txhua yam khoom.
Circuit Breakers, Hloov thiab Disconnectors
Lub Circuit Court breaker raug xaiv los nqa thiab cuam tshuam tam sim no raws li nws cov xwm txheej teev tseg. Load keyboards thiab disconnectors muaj lawv tus kheej hloov los yog cais lub luag hauj lwm, uas yuav tsum tsis txhob xav tias yuav interchangeable. Qhov kev khiav hauj lwm thiab kev sib cuam tshuam yuav tsum raug tshuaj xyuas ntawm qhov kawg pom zoo schematic.
Busbars, Txuas thiab Cable Compartments
Busbars tsim txoj hauv kev ntawm cov khoom xa tuaj thiab cov khoom xa tawm. Lub rooj sib txoos tuaj yeem muaj lub tsheb npav loj, cov tsheb thauj mus los, cov chaw sib txuas thiab cov chaw txuas cable. Rated tam sim no, luv-circuit withstand, rwb thaiv tsev clearances thiab enclosure layout cuam tshuam rau tag nrho cov kev npaj. Lub busbar zoo nkaus li ib leeg tsis tsim nws qhov kev ua tau zoo.
Kev Tiv Thaiv Relays, Instrument Transformers thiab Tswj
Tam sim no transformers (CTs) thiab voltage transformers (VTs), thaum ntsia, muab kev ntsuas ntsuas rau metering thiab tiv thaiv cov cuab yeej. Kev tiv thaiv relays txheej txheem cov tswv yim no raws li kev teeb tsa thiab cov laj thawj; meters, teeb pom kev zoo, kev sib txuas lus pab thiab cov khoom siv sib txuas lus txhawb kev ua haujlwm thiab saib xyuas. Cov neeg yuav khoom yuav tsum paub qhov txawv cov yam ntxwv xav tau los ntawm ib kab kab kos los ntawm kev xaiv cov khoom siv hauv txee.
| Cheebtsam | Lub luag haujlwm tseem ceeb | Specification nug |
|---|---|---|
| Circuit Court breaker | Kev cuam tshuam ntawm cov ntsuas tam sim no thiab qhov ua txhaum cai | Dab tsi yog qhov ntsuas voltage, tam sim no thiab tawg ua haujlwm? |
| Busbar | Kev faib tawm tam sim no ntawm circuits | Lub tsheb npav npaj thiab ntsuas li cas? |
| CT / VT | Ntsuas cov cim | Yuav tsum muaj qhov piv txwv, chav kawm thiab lub nra li cas? |
| Kev tiv thaiv relay | Kev tiv thaiv logic thiab cov cim kev mus ncig | Cov haujlwm twg thiab cov interfaces tau teev tseg? |
| Tswj thiab ntsuas | Kev ua haujlwm, xwm txheej thiab saib xyuas | Dab tsi yuav tsum tau qhia thiab kev sib txuas lus? |
Low-, Nruab Nrab- thiab High-Voltage Switchgear tsis yog tib yam khoom
Switchgear npog ib tsev neeg ntawm kev tsim ntau dua li ib lub txee universal. Cov cuab yeej siv hluav taws xob tsawg feem ntau ua haujlwm qis hauv tsev thiab kev faib khoom lag luam. Cov khoom siv nruab nrab-voltage feem ntau ua haujlwm pub khoom noj khoom haus thiab cov khoom siv hluav taws xob faib hluav taws xob. Kev teeb tsa high-voltage tuaj yeem koom nrog sib txawv ntawm qhov sib txawv, cuam tshuam, rwb thaiv tsev thiab substation kev npaj. Qhov tshwj xeeb LV/MV/HV ciam teb thiab cov qauv xeem uas siv tau yog nyob ntawm qhov kev txiav txim thiab cov qauv txheej txheem; ib lub rooj txiav tawm thoob ntiaj teb yuav ua rau tsis meej pem.
JSGK's high-voltage switchgear nplooj ntawv txheeb xyuas KYN, XGN thiab cov tsev neeg muaj feem cuam tshuam nrog cov khoom siv hlau kom tau txais, faib, tiv thaiv, saib xyuas thiab ntsuas. Nws low-voltage switchgear thiab faib khoom nplooj ntawv muab cov khoom sib cais rau cov kab ke hauv qab. Cov nplooj ntawv no txheeb xyuas cov tsev neeg cov khoom, tsis yog kev cog lus tias txhua qhov kev ntaus nqi lossis kev tiv thaiv nta muaj nyob rau hauv txhua qhov kev teeb tsa.
Cua-Insulated thiab Gas-Insulated Designs
Rwb thaiv tsev tshuab yog lwm qhov kev xaiv ywj pheej ntawm chav kawm voltage. Cua-insulated switchgear siv cua ua ib qho tseem ceeb ntawm kev rwb thaiv tsev nruab nrab hauv cov qauv tsim. Gas-insulated cov cuab yeej encloses Cheebtsam nyob rau hauv ib tug tswj insulating-gas ib puag ncig. Cov txheej txheem insulated thiab hybrid kuj muaj nyob; lawv qhov kev siv tau nyob ntawm cov khoom tsim thiab cov qauv.
Qhov chaw, ntsuas hluav taws xob lub luag haujlwm, kev saib xyuas kev nkag mus, ib puag ncig thiab cov kev xav tau ntawm qhov project tag nrho cuam tshuam rau kev xaiv. Nws tsis yog suab zoo los thov tias GIS yog universally superior rau AIS. Rau tsev neeg cov khoom lag luam, JSGK muab a nplhaib lub ntsiab chav tsev thiab roj-insulated txee nplooj ntawv; Qhov kawg rwb thaiv tsev nruab nrab thiab txee nta yuav tsum tau xyuas los ntawm cov ntaub ntawv tiag tiag.
Qhov twg Switchgear zaum nyob rau hauv lub Fais Fab Distribution System?
Ib txoj hauv kev yooj yim ntawm kev faib tawm yuav yog: cov khoom xa tuaj → ntws HV lossis MV hloov pauv thiab tiv thaiv → transformer qhov twg yuav tsum tau hloov hluav taws xob → LV switchgear → tawm cov khoom noj thiab cov khoom thauj. Tiag tiag topologies sib txawv, thiab tsis yog txhua qhov kev teeb tsa ua raws li qhov tseeb ib ntus.
Piv txwv li, lub thawv-hom substation tuaj yeem sib txuas lub zog hloov pauv nrog ntau dua- thiab qis-voltage hloov thiab faib ua haujlwm hauv kev sib koom ua ke. JSGK's box-type substation nplooj ntawv qhia txog qhov system kev sib raug zoo. Switchgear thiab transformers ua hauj lwm sib txawv: lub transformer hloov voltage theem; switchgear tswj, tiv thaiv thiab cais cov circuits txuas nrog nws.
Switchgear vs. Switchboard: Qhov txawv yog dab tsi?
Ob nqe lus piav qhia txog cov khoom siv hluav taws xob faib hluav taws xob, tab sis lawv tsis tas yuav hloov pauv. Hauv North American cov qauv thiab kev yuav khoom, qhov hluav taws xob tsis tshua muaj hluav taws xob hloov hluav taws xob thiab cov hluav taws xob hloov hluav taws xob tuaj yeem muaj kev tsim kho sib txawv, khoom siv thiab cov qauv yuav tsum tau ua. Lwm qhov, cov khoom siv thiab kev faib tawm yuav ua raws li IEC lossis lub teb chaws specifications. Tsis yog xav tias lub npe tsim kev ua tau zoo, sib piv cov khoom lag luam pom zoo, kev ntsuas kev ua txhaum, hom khoom siv, kev sib txuas, kev nkag mus thiab kev saib xyuas.
Lub vaj huam sib luag sau tias 'switchgear' yuav tsum tsis txhob lees txais nws lub npe nkaus xwb. Cov neeg yuav khoom yuav tsum xyuas seb qhov twg yog nyob rau hauv lub rooj sib txoos thiab qhov kev khiav hauj lwm thiab kev soj ntsuam lub luag hauj lwm uas tau xa tuaj tiag tiag npog.
Tus neeg yuav khoom yuav tsum qhia dab tsi ua ntej xaiv Switchgear?
Paub txog cov ntsiab lus hloov pauv yooj yim yog qhov tseem ceeb, tab sis cov khoom siv hluav taws xob muaj txiaj ntsig xav tau cov lus piav qhia txog qhov project. Tus neeg yuav khoom yuav tsum tau npaj cov ntaub ntawv hauv qab no rau kev tshuaj xyuas engineering:
- Nominal system voltage thiab cov chav kawm voltage.
- Rated tam sim no thiab nkag / tawm Circuit Court kom muaj nuj nqis.
- Muaj luv luv-circuit theem thiab yuav tsum tau tiv thaiv los yog kev ntaus nqi.
- Daim duab kab ib kab, kev npaj caij tsheb npav thiab cov txheej txheem pub khoom noj.
- Kev tiv thaiv, metering, interlocking thiab kev sib txuas lus yuav tsum tau.
- Sab hauv lossis sab nraum zoov installation, ambient thiab site tej yam kev mob.
- Cable nkag, davhlau ya nyob twg interfaces thiab enclosure yuav tsum.
- Kev khiav haujlwm thiab kev saib xyuas-kev txwv tsis pub nkag.
- Siv tau cov qauv qauv thiab cov ntaub ntawv xav tau.
- Cov khoom siv ntau thiab xav tau kev xa khoom interfaces.
Cov tswv yim no pab ua kom sib txawv ntawm cov khoom lag luam-tsev neeg nug los ntawm kev pom zoo cov txee teeb tsa. JSGK thov qib voltage, tam sim no, luv luv-circuit theem, Circuit Court kom muaj nuj nqis, ib puag ncig thiab kos duab rau kev tshuaj xyuas qhov project. Txhawm rau txuas ntxiv los ntawm qhov kev piav qhia no mus rau kev xaiv cov khoom siv tiag tiag, tham txog koj cov kev xav tau hloov pauv nrog JSGK thiab muab cov ntaub ntawv ntsig txog qhov system.
Hauv cov ntsiab lus, hluav taws xob hloov hluav taws xob yog qhov kev sib koom ua ke hloov pauv, kev tiv thaiv thiab cov khoom siv cais tawm. Nws cov Cheebtsam, rwb thaiv tsev txheej txheem thiab ntsuas kev ua tau zoo sib txawv nrog cov qauv hauv Circuit Court thiab qhov project. Pib nrog cov kev ua haujlwm thiab cov kab kos ib kab, tom qab ntawd ntsuas cov khoom tshwj xeeb hauv tsev neeg thiab paub tseeb txog kev teeb tsa.