Taw qhia
Lub transformer tam sim no (CT) yog tsim los ntawm ob peb yam tseem ceeb uas ua haujlwm ua ke los hloov hluav taws xob tam sim no thiab muab cov teeb liab tsim nyog rau kev ntsuas lossis cov cuab yeej tiv thaiv. Txawm hais tias qhov tseeb kev tsim kho nws txawv nyob ntawm seb hom CT, qib voltage, qhov ntsuas tam sim no, qhov xav tau raug, thiab daim ntawv thov, feem ntau tam sim no transformers muaj ob peb yam tseem ceeb.
Nkag siab txog cov khoom tseem ceeb ntawm lub tshuab hloov tam sim no yog qhov tseem ceeb thaum xaiv, txhim kho, kuaj, lossis tswj cov khoom siv CT. Cov tub ntxhais hlau nplaum, thawj Circuit Court, theem nrab winding, rwb thaiv tsev system, terminals, thiab enclosure tag nrho ua rau tag nrho cov kev ua tau zoo thiab kev ntseeg siab ntawm lub transformer.
Sib nqus Core
Cov tub ntxhais hlau nplaum yog ib qho tseem ceeb tshaj plaws ntawm cov transformer tam sim no.
Nws muab txoj hauv kev sib nqus rau cov flux uas tsim los ntawm thawj qhov tam sim no. Thaum tam sim no ntws los ntawm thawj tus neeg xyuas pib, nws tsim ib qho chaw sib nqus. Cov tub ntxhais tseem ceeb concentrates thiab coj qhov sib nqus flux kom nws tuaj yeem cuam tshuam zoo nrog cov cua ntsawj ntshab thib ob.
Cov khoom siv tseem ceeb thiab kev tsim kho muaj feem cuam tshuam rau CT kev ua haujlwm. Yam xws li magnetic permeability, core poob, saturation yam ntxwv, thiab lub cev qhov ntev tuaj yeem cuam tshuam qhov tseeb.
Kev siv CT sib txawv yuav xav tau cov qauv tsim sib txawv. Cov ntawv thov ntsuas ntsuas feem ntau tsom rau qhov ntsuas qhov tseeb, thaum cov ntawv thov kev tiv thaiv yuav xav tau kev ua haujlwm tsim nyog thaum lub sijhawm siab - tam sim no txhaum cai.
Primary Conductor lossis Primary Winding
Thawj sab yog ib feem ntawm CT uas nqa qhov ntsuas tam sim no.
Nyob ntawm tus qauv tsim, lub hauv paus yuav muaj kev sib koom ua ke, ib qho tooj liab bar, lossis lwm tus neeg xyuas pib dhau los ntawm qhov qhib ntawm CT.
Qhov rai- hom thiab toroidal CTs feem ntau yog tsim los kom tus neeg xyuas pib tam sim no ua tus thawj coj. Hauv qhov kev npaj no, tus neeg xyuas pib dhau los ntawm cov tub ntxhais sib nqus, thiab CT kuaj pom cov hlau nplaum uas tsim los ntawm qhov tam sim no.
Tus qauv tsim yog ze ze rau qhov ntsuas thawj tam sim no thiab cov kev xav tau ntawm kev teeb tsa.
Secondary Winding
Qhov thib ob winding yog lwm yam tseem ceeb.
Nws muaj lem ntawm insulated conductor qhov txhab nyob ib ncig ntawm los yog txuam nrog cov hlau nplaum core. Qhov hloov magnetic flux generated los ntawm thawj tam sim no induces ib tug tam sim no nyob rau hauv lub thib ob winding.
Qhov thib ob tam sim no yog proportional rau thawj tam sim no raws li CT ratio.
Qhov thib ob winding yog txuas nrog cov khoom siv xws li ammeters, lub zog ntsuas hluav taws xob, kev saib xyuas, lossis kev tiv thaiv relays. Lub winding yuav tsum tau tsim kom tau raws li qhov xav tau tam sim no ntsuas, qhov tseeb, rwb thaiv tsev, thiab lub nra hnyav.
Rwb thaiv tsev System
Cov txheej txheem rwb thaiv tsev cais cov khoom siv hluav taws xob thiab pab CT tiv thaiv nws qhov ntsuas hluav taws xob thiab hluav taws xob.
Raws li kev tsim thiab kev siv, kev rwb thaiv tsev yuav muab los ntawm cov ntaub ntawv xws li molded rwb thaiv tsev, resin, insulating ntawv, los yog lwm yam khoom siv hluav taws xob tsim nyog.
Qhov yuav tsum tau rwb thaiv tsev theem nyob ntawm kev khiav hauj lwm voltage thiab installation ib puag ncig.
Kev rwb thaiv tsev zoo yog qhov tseem ceeb rau kev nyab xeeb hluav taws xob thiab kev cia siab ntev ntev -. Rwb thaiv tsev tsim yuav tsum tau xav txog tej yam kev mob xws li kub, av noo, paug, thiab mechanical stress.
Terminals
CT terminals muab cov hluav taws xob sib txuas ntawm lub transformer thiab kev ntsuas sab nraud lossis kev tiv thaiv Circuit Court.
Thawj thiab theem nrab cov davhlau ya nyob twg yuav tsum raug txheeb xyuas kom meej tias CT tuaj yeem txuas tau raug.
Cov terminals thib ob yog qhov tseem ceeb tshwj xeeb vim tias kev xaim tsis raug tuaj yeem cuam tshuam kev ntsuas qhov tseeb, polarity, thiab kev tiv thaiv kev ua haujlwm.
Hauv kev teeb tsa, kev tsim lub davhlau ya nyob twg yuav tsum tau muab cov khoom siv txhim khu kev qha thiab cov hluav taws xob rwb thaiv tsev tsim nyog.
Tsev los yog Enclosure
Lub vaj tse tiv thaiv cov khoom siv sab hauv ntawm tam sim no transformer los ntawm ib puag ncig ib puag ncig thiab muab kev txhawb nqa txhua yam.
Nyob ntawm daim ntawv thov, lub kaw lus yuav pab tiv thaiv CT los ntawm plua plav, ya raws, kev cuam tshuam, thiab lwm yam kev cuam tshuam ib puag ncig.
Rau sab hauv tsev hluav taws xob vaj huam sib luag, compact molded vaj tsev yog ntau. Lwm daim ntawv thov yuav xav tau kev tiv thaiv kev sib txawv nyob ntawm qhov chaw teeb tsa.
Lub vaj tse kuj tseem txhawb nqa lub cev qhov ntev thiab kev teeb tsa ntawm CT.
Mounting Structure
Ntau qhov tam sim no transformers muaj xws li mounting nta uas tso cai rau lawv kom ruaj ntseg ntsia tau rau hauv hluav taws xob panels, busbars, cables, los yog lwm yam khoom siv.
Txoj kev mounting nyob ntawm tus qauv CT. Qee cov CTs yog tsim los rau kev txuas ncaj qha nyob ib puag ncig tus neeg xyuas pib, thaum lwm tus tuaj yeem siv cov hlua khi, cov ntsia hlau, DIN rail systems, lossis lwm yam khoom siv tshuab.
Kev txhim kho kom raug yog qhov tseem ceeb vim tias kev txav los yog qhov chaw tsis raug tuaj yeem cuam tshuam rau kev teeb tsa thiab, nyob ntawm tus qauv tsim, kev ua haujlwm ntawm qhov ntsuas qhov system.
Xaus
Lub ntsiab tseem ceeb ntawm lub transformer tam sim no muaj xws li cov tub ntxhais hlau nplaum, thawj tus neeg xyuas pib lossis winding, theem nrab winding, rwb thaiv tsev system, terminals, vaj tse, thiab mounting qauv.
Txhua yam khoom muaj lub luag haujlwm tshwj xeeb. Cov tub ntxhais sib nqus muab txoj hauv kev sib nqus, lub hauv paus nqa cov ntsuas tam sim no, thiab qhov thib ob ua rau cov khoom siv sib npaug siv tam sim no siv los ntawm metres lossis cov cuab yeej tiv thaiv. Lub rwb thaiv tsev muab hluav taws xob sib cais, thaum lub terminals, vaj tse, thiab mounting qauv txhawb kev ruaj ntseg thiab txhim khu kev qha installation.
Vim tias kev tsim kho CT txawv raws li daim ntawv thov, cov neeg siv yuav tsum xav txog qhov yuav tsum tau ua tam sim no, qhov tseeb, lub nra, qib rwb thaiv tsev, txoj kev teeb tsa, thiab ib puag ncig thaum xaiv cov khoom.
Lub transformer tam sim no tsim tau zoo muab cov khoom sib xyaw ua ke rau hauv cov khoom siv txhim khu kev qha rau kev ntsuas tam sim no, kev saib xyuas, thiab kev tiv thaiv hluav taws xob.