Hauv kev siv hluav taws xob niaj hnub, kev ntsuas tam sim no thiab qhov hluav taws xob yog lub hauv paus ntawm kev ua haujlwm nyab xeeb, kev saib xyuas kev siv hluav taws xob thiab kev tiv thaiv relay. Txij li thaum tam sim no thiab voltage distortion qhov tseem ceeb nyob rau hauv high voltage kis tau tus mob thiab tis kab feem ntau yog ntau dua li qhov ntsuas ntsuas thiab cov khoom tiv thaiv tuaj yeem tiv taus ncaj qha, nws yog ib qho tsim nyog los hloov lub siab tam sim no los yog qhov hluav taws xob ntawm ib sab ntawm lub transformer tam sim no rau hauv cov qauv qis tam sim no lossis voltage signals.
Hauv kev siv tswv yim, ob qho khoom siv feem ntau yog high voltage tam sim no transformer thiab voltage transformers. Txawm hais tias ob qho tib si yog cov cuab yeej ntsuas hluav taws xob, lawv ua haujlwm nyob rau hauv ntau txoj kev sib txawv, muaj nuj nqi thiab yuav ua li cas lawv tau teeb tsa.
Raws li cov khoom siv hluav taws xob hluav taws xob siab, peb niaj hnub tau txais kev nug los ntawm cov neeg siv khoom txog qhov sib txawv ntawm ob. Daim ntawv no yuav ua rau cov ncauj lus kom ntxaws los ntawm lub hauv paus ntsiab lus ntawm kev ua haujlwm, cov yam ntxwv ntawm kev ua haujlwm, cov ntawv thov scenarios thiab lwm yam.
Dab tsi yog high voltage tam sim no transformer?
High voltage tam sim no transformer tsuas yog siv los ntsuas thiab saib xyuas tam sim no hauv lub zog hluav taws xob.
Nws lub luag haujlwm tseem ceeb yog txhawm rau ntsuas qhov loj thawj tam sim no rau hauv cov qauv me me tam sim no, feem ntau:
1A
5A
Qhov no ua rau kev ntsuas ntsuas, cov khoom siv tiv thaiv relay thiab cov tshuab automation kom muaj kev nyab xeeb thiab tswj xyuas tam sim no.
Cov ntsiab cai ntawm kev ua haujlwm
Kev khiav hauj lwm hauv paus ntsiab lus ntawm high voltage tam sim no transformer yog electromagnetic induction.
Thaum ib tug loj tam sim no ntws los ntawm tus thawj conductor, ib tug sib nqus flux yog generated nyob rau hauv lub hlau core, uas ua rau ib tug proportional txo nyob rau hauv lub tam sim no teeb liab nyob rau hauv lub thib ob winding.
Piv txwv li:
Main tam sim no:
1000A
Sub- tawm:
5A
Cov cuab yeej tuaj yeem suav cov kab tam sim no los ntawm kev ntsuas 5A tam sim no.
Aa Voltage Transformer yog dab tsi?
Voltage transformers feem ntau yog siv rau kev ntsuas hluav taws xob thiab saib xyuas cov kab hluav taws xob siab.
Lawv muaj peev xwm proportionally txo qhov siab voltage ntawm ib sab mus rau tus qauv ntsuas voltage.
Cov txiaj ntsig thib ob feem ntau suav nrog:
100V
110V
Qhov no tso cai rau cov cuab yeej thiab cov cuab yeej tiv thaiv ua haujlwm kom nyab xeeb.
Cov ntsiab cai ntawm kev ua haujlwm
voltage transformer yog qhov tseem ceeb tshwj xeeb ntawm transformer.
High voltage yog hloov dua siab tshiab rau tsawg voltage tso zis los ntawm kev siv lub lem piv ntawm thawj thiab thib ob winding.
Piv txwv li:
Main voltage:
10kv ua
Secondary voltage:
100V
Qhov ntsuas ntsuas ntsuas qhov tseeb daim phiaj voltage raws li qhov sib piv.
Dab tsi yog qhov tseem ceeb sib txawv?
Txawm hais tias ob qho tib si yog ntsuas transformers, lawv tau ntsuas los ntawm cov khoom sib txawv heev.
High voltage tam sim no transformer ntsuas tam sim no tsis.
Voltage transformers ntsuas qhov ntsuas voltage.
Hauv luv luv:
CT tam sim no ntsuas
VT ntsuas qhov voltage
Qhov ntawd yog qhov txawv txav.
Lawv ua haujlwm nyob rau hauv ntau yam sib txawv.
High voltage tam sim no transformer:
Lub ntsiab nto yog feem ntau txuas nrog rau kab hauv series.
Tam sim no yuav tsum dhau los ntawm transformer yuav tsum ntsuas.
Yog li ntawd:
Muaj ob peb lem nyob rau hauv lub ntsiab winding
Loj neeg xyuas pib hla ntu
Qhov voltage transformers:
Lub ntsiab nto yog txuas nrog lub ntsiab kab nyob rau hauv parallel.
Nws lub luag haujlwm tseem ceeb yog khaws cov kab hluav taws xob hluav taws xob.
Yog li ntawd:
Lub ntsiab winding rotates ntau.
Tus neeg xyuas pib tam sim no me me.
Cov kev sib txuas sib txawv txiav txim siab lawv qhov sib txawv tseem ceeb hauv kev tsim qauv.
Cov kev xav tau ntawm kev ua haujlwm thib ob yog txawv.
Qhov no yog lub ntsiab lus tseem ceeb hauv kev siv engineering.
Tam sim no transformer tsis tuaj yeem hloov tau.
Thaum HVCT tab tom ua haujlwm, yog tias sab thib ob qhib:
Lub hauv paus yuav saturated heev.
Qhov thib ob sab yuav tsim kom muaj qhov txaus ntshai heev.
Qhov no tuaj yeem ua rau cov khoom puas.
Qhov no yog kev hem thawj rau tib neeg kev nyab xeeb.
Yog li ntawd, lub thib ob sab ntawm lub tam sim no transformer (CT) yuav tsum nyob twj ywm kaw.
Voltage transformers tsis tuaj yeem luv luv Circuit Court.
Qhov thim rov qab siv rau qhov voltage transformers.
Yog hais tias muaj ib tug luv luv Circuit Court ntawm ob sab:
Tam sim no nce ntau heev.
Windings tuaj yeem hlawv tawm.
Cov cuab yeej yuav raug puas tsuaj.
Yog li ntawd, nws yog ib qho tsim nyog kom tsis txhob luv luv - Circuit Court ua haujlwm ntawm ob sab ntawm qhov hluav taws xob transformer.
Qhov no yog ib qho ntawm cov teeb meem tseem ceeb tshaj plaws los xav txog thaum txhim kho thiab tswj xyuas ntawm qhov chaw.
Dab tsi yog qhov txawv ntawm daim ntawv thov scenarios?
Daim ntawv thov ntawm high voltage tam sim no transformer
High voltage tam sim no transformers yog dav siv nyob rau hauv:
Substations
Cov kab sib kis
Distribution systems
Fais fab metering systems
Relay tiv thaiv systems
Muaj zog saib xyuas
Lub luag haujlwm tseem ceeb rau kev ntsuas tam sim no thiab kev tiv thaiv kev tswj hwm.
Daim ntawv thov ntawm Voltage Transformers
Voltage transformers yog dav siv rau:
kab hluav taws xob
Kev ntsuas hluav taws xob
Kev tiv thaiv hluav taws xob
Automated tswj systems
Kev saib xyuas hluav taws xob zoo
Lub luag haujlwm tseem ceeb rau kev ntsuas hluav taws xob thiab kev tiv thaiv.
Lub luag haujlwm hauv Relay Protection Systems
Niaj hnub nimno ntse substations cia siab heev rau kev tiv thaiv iav.
High -voltage tam sim no transformers muab:
Overcurrent tiv thaiv teeb liab
Cov cim tiv thaiv sib txawv
Luv -circuit detection signals
Voltage transformers muab:
Undervoltage tiv thaiv teeb liab
Overvoltage tiv thaiv cov cim
Kev ntsuas ntsuas zaus
Synchronization nrhiav pom teeb liab
Ua ke, lawv tsim ib qho kev tiv thaiv tag nrho.
Vim li cas lub tshuab hluav taws xob xav tau ob qho tib si CTs thiab VT?
Ntau tus neeg siv khoom yuav nug:
Txij li ob qho tib si tuaj yeem ntsuas qhov ntsuas hluav taws xob, vim li cas ho tsis nruab ntau tshaj ib lub cuab yeej?
Yog vim li cas yog tias lub zog ua haujlwm yuav tsum muaj kev nkag mus rau ib txhij:
Cov ntaub ntawv muaj
Cov ntaub ntawv voltage
Piv txwv li, xam lub zog yuav tsum tau:
P=UIcosφ
Yog tsis muaj cov ntaub ntawv tam sim no lossis voltage, lub kaw lus tsis tuaj yeem ntsuas qhov tseeb, saib xyuas thiab tiv thaiv.
Yog li ntawd, high-voltage tam sim no transformers thiab voltage transformers feem ntau yog siv ua ke.
Yuav ua li cas xaiv Txoj Cai Ntsuas Transformer?
Thaum yuav khoom, nws raug nquahu kom tsom mus rau cov hauv qab no:
High voltage tam sim no transformer:
Rated Tam sim no
Chav kawm raug
Load peev
Rwb thaiv tsev chav kawm
Rwb thaiv tsev ib puag ncig
Rau voltage transformers:
Rated Voltage
Hloov pauv piv
Chav kawm raug
Rwb thaiv tsev qauv
Qhov system voltage
Xaiv cov khoom uas ua tau raws li qhov yuav tsum tau ua ntawm qhov project yog qhov tseem ceeb los xyuas kom meej qhov ntsuas qhov tseeb thiab kev nyab xeeb ntawm lub cev.
Xaus:
Txawm hais tias ob qho tib si HVCT thiab voltage transformers yog cov cuab yeej ntsuas hluav taws xob, lawv ua haujlwm sib txawv heev. Lub qub converts siab tam sim no mus rau standard ntsuas tam sim no, lub tom kawg converts high voltage mus rau standard ntsuas voltages. Ob lub cuab yeej no yog qhov tseem ceeb hauv cov chaw ua haujlwm niaj hnub no, cov kab sib kis thiab cov tshuab xa tawm thiab sib koom ua ke muab cov ntaub ntawv txhim khu kev qha rau kev ntsuas hluav taws xob, kev tiv thaiv relay thiab kev ua haujlwm ntse. Kev nkag siab qhov sib txawv pab cov engineers thiab cov neeg yuav khoom xaiv cov kev daws teeb meem zoo dua rau lawv qhov kev xav tau.
Nquag nug
Dab tsi yog qhov sib txawv loj tshaj ntawm HVCT thiab VCT?
High voltage tam sim no transformers yog siv los ntsuas tam sim no, thiab voltage transformers yog siv los ntsuas voltage. Qhov ntawd yog qhov txawv txav.
Vim li cas lub transformer tam sim no qhib tsis tau?
Kev qhib sab nraud tuaj yeem ua rau muaj kev kub ntxhov txaus ntshai, muaj peev xwm ua rau cov khoom puas tsuaj thiab cov neeg ua haujlwm txaus ntshai.
Vim li cas ho tsis voltage transformer luv -circuit?
Secondary luv circuits tuaj yeem ua rau muaj kev nce ntxiv hauv cov tam sim no thiab kev puas tsuaj windings thiab cov khoom siv.
Tam sim no transformer thiab voltage transformer siv nws tus kheej?
Yog, tab sis nyob rau hauv feem ntau lub tshuab fais fab, lawv feem ntau yog siv ua ke rau kev ntsuas tag nrho thiab kev tiv thaiv.
Cov kev lag luam twg feem ntau siv siab -voltage transformers?
High- cov khoom siv hluav taws xob hloov hluav taws xob tau siv dav hauv cov tuam txhab hluav taws xob hluav taws xob, cov chaw tsim hluav taws xob, cov chaw ua si, cov chaw tsim hluav taws xob tshiab, cov tsheb ciav hlau thauj mus los thiab cov chaw tsim khoom loj -.
