Hauv lub ntiaj teb uas siv kev ntsuas hluav taws xob thiab kev siv cov cuab yeej ua vaj huam sib luag, lub terminal block ua lub luag haujlwm tseem ceeb uas tsis zoo li nws qhov me me. Cov terminal blocks uas tsis txuas nrog lub qhov (socket) txiv tsawb (banana) uas muaj 4 hli yog cov khoom tseem ceeb hauv cov metering panels, cov circuits tiv thaiv relay, thiab cov circuits transformer (CT) theem nrab. Rau cov engineers uas yuav khoom, cov neeg tsim vaj huam sib luag, thiab cov neeg tsim khoom siv uas nrhiav cov khoom no, kev nkag siab txog cov yam ntxwv ntawm cov terminal blocks uas tsis txuas nrog lub terminal blocks yog qhov tseem ceeb rau kev tsim cov kab ke hluav taws xob uas txhim khu kev qha thiab tswj tau.

Tsab xov xwm no muab cov lus qhia txog kev siv tshuab los sim cov thaiv qhov kawg nrog 4 hli txiv tsawb qhov (socket) ua haujlwm, kev xav txog kev tsim hluav taws xob tam sim no rau cov vaj huam sib luag ntsuas, thiab cov qauv siv tau rau kev ntsuam xyuas thiab xaiv ib qho kev sim txuas lub davhlau ya nyob twg thaiv cov khoom sivTxawm koj tab tom teev cov khoom rau lub vaj huam sib luag tshiab, txhim kho qhov kev teeb tsa metering uas twb muaj lawm, lossis nrhiav cov khoom rau kev tsim cov khoom siv qub, phau ntawv qhia no yuav pab koj txiav txim siab zoo.

Lub Luag Haujlwm ntawm Kev Ntsuas Kev Sib Txuas Lus Hauv Cov Vaj Huam Sib Luag

Cov vaj huam sib luag ntsuas hluav taws xob ua lub hauv paus tseem ceeb ntawm kev saib xyuas kev faib hluav taws xob. Lawv muaj cov cuab yeej - ammeters, voltmeters, wattmeters, thiab ntau lub zog ntsuas hluav taws xob - uas muab rau cov neeg ua haujlwm nrog kev pom tseeb tiag tiag rau kev ua haujlwm ntawm lawv cov kab ke hluav taws xob. Hauv kev teeb tsa AC peb-theem, cov transformers tam sim no tau txo cov hluav taws xob thawj theem siab mus rau cov hluav taws xob theem ob (feem ntau yog 1A lossis 5A) uas tuaj yeem ntsuas tau zoo los ntawm cov cuab yeej thiab cov relays tiv thaiv.

Qhov yuav tsum tau tsim qauv tseem ceeb rau CT secondary circuits yog tias lawv yuav tsum tsis txhob qhib-circuited thaum tam sim no ntws hauv thawj. Ib qho qhib CT secondary tsim tawm lub zog siab heev ntawm cov terminals secondary raws li lub transformer lub magnetic core saturates, tsim kom muaj kev nyab xeeb loj rau cov neeg ua haujlwm thiab kev puas tsuaj ntawm CT nws tus kheej. Yog li ntawd, txhua CT secondary circuit yuav tsum tau xaus rau hauv lub load - lossis luv-circuited - txhua lub sijhawm.

Cov thaiv txuas ntawm qhov kev sim txiav tawm daws qhov teeb meem no tau zoo heev. Lawv muab ib txoj hauv kev los txiav cov cuab yeej thiab cov ntsuas ntawm lub voj voog thib ob CT rau kev sim lossis hloov pauv thaum tswj hwm qhov kev ua tiav ntawm txoj kev luv luv. Thaum lub thaiv txuas ntawm qhov kev sim nyob rau hauv qhov chaw txuas, CT thib ob raug thauj mus rau hauv lub cuab yeej. Thaum lub thaiv raug tsiv mus rau qhov chaw sim, ib qho bar luv luv yuav pib ua haujlwm uas hloov CT thib ob, uas tso cai rau cov cuab yeej raug tshem tawm lossis hloov pauv yam tsis tau tawm hauv CT thib ob qhib.

Lub 4 hli Txiv tsawb Qhov (Socket) Kev Teeb tsa

Lub qhov (socket) txiv tsawb 4 hli yog hom txuas uas siv rau kev sim thiab ntsuas cov khoom siv. Cov ntsaws txiv tsawb uas muaj cov ncej loj 4 hli siv dav hauv cov ntsuas vaj huam sib luag, oscilloscopes, cov khoom siv fais fab DC, thiab ntau yam khoom siv sim. Qhov loj 4 hli yog qhov chaw zoo ntawm kev ruaj khov thiab kev me me—loj txaus los muab kev sib txuas txhim khu kev qha, tsis tshua muaj kev tiv thaiv tab sis me txaus kom haum rau cov qauv thaiv davhlau ya nyob twg siab.

Kev sim txuas cov davhlau ya nyob twg nrog 4 hli txiv tsawb qhov (sockets) ua haujlwm ob qho tib lub sijhawm:

1. Lawv muab ib qho chaw txuas ruaj khov, tas mus li rau cov xov hlau CT thib ob hauv lub vaj huam sib luag. Lub qhov (socket) txiv tsawb txais lub qhov (socket) txiv tsawb los ntawm cov xov hlau ntsuas, tsim kom muaj kev sib txuas ruaj ntseg thiab ntsuas tau.
2. Lawv muaj lub tshuab luv luv uas yuav pib ua haujlwm thaum lub luag haujlwm txiav tawm. Qhov no yuav yog ib qho sliding shorting bar, ib lub plug-in shorting bridge, lossis ib lub lever shorting mechanism nyob ntawm seb tus qauv tsim khoom tshwj xeeb.

Qhov kev ua haujlwm ob yam no ua rau lub thaiv davhlau ya nyob twg sim txuas ua ib qho kev daws teeb meem me me, zoo nkauj uas hloov qhov uas yuav xav tau ntau yam khoom: cov thaiv davhlau ya nyob twg sib cais, lub busbar luv luv, thiab cov txuas luv luv tes.

Vim Li Cas Cov Circuits Transformer Tam Sim No Thiaj Li Yuav Tsum Muaj Cov Terminal Blocks Tshwj Xeeb

Cov thaiv davhlau ya nyob twg txheem tsis haum rau CT secondary circuits. CT secondary ua haujlwm ntawm qhov hluav taws xob qis heev nyob rau hauv cov xwm txheej ib txwm muaj - feem ntau tsuas yog ob peb volts thaum lub sijhawm tam sim no ntws - tab sis tuaj yeem tsim ntau txhiab volts yog tias qhov thib ob qhib-circuited. Qhov hluav taws xob no tshwm sim thoob plaws cov davhlau ya nyob twg tam sim ntawd thaum CT raug energized thiab qhov thib ob qhib.

Yog li ntawd, lub CT secondary terminal block yuav tsum ua tau raws li ntau yam kev cai tshwj xeeb:

Kev Ntseeg Tau Luv Luv: Lub tshuab luv luv yuav tsum muab qhov luv luv uas tsis tshua muaj zog hla cov CT secondary terminals. Txhua qhov kev tiv thaiv hauv txoj kev luv luv yuav ua rau muaj kev ntsuas tsis raug thiab ua rau muaj cua sov ntawm qhov sib cuag luv luv. Txoj kev luv luv yuav tsum muaj qhov tsis kam tsawg dua 10 milliohms nyob rau hauv txhua qhov xwm txheej.

Dielectric withstand: Lub thaiv davhlau ya nyob twg yuav tsum tiv taus qhov hluav taws xob siab uas tuaj yeem tshwm sim hla nws cov davhlau ya nyob twg yog tias qhov thib ob qhib tsis tau xav txog. Cov qauv IEC rau CT thib ob thaiv davhlau ya nyob twg feem ntau xav tau qhov hluav taws xob dielectric tsawg kawg nkaus ntawm 2 kV AC rau ib feeb.

Muaj peev xwm ua thiab rhuav tshem: Qee cov qauv tsim yuav tsum tau lub thaiv davhlau ya nyob twg kom muaj peev xwm ua thiab rhuav tshem CT theem ob tam sim no yam tsis muaj kev puas tsuaj. Rau cov qauv ntsuas CTs (1A lossis 5A theem ob), qhov no feem ntau yog nyob rau hauv lub peev xwm ntawm cov thaiv kev sib txuas zoo tsim, txawm hais tias cov lus qhia ntawm cov chaw tsim khoom yuav tsum tau sab laj.

Kev Ruaj Ntseg Tiv Thaiv Kev Ua Haujlwm Tsis Yog: Hauv cov thaiv txuas hluav taws xob uas tsim tau zoo, lub tshuab luv luv yuav ua haujlwm tau thaum lub sijhawm ua haujlwm txiav tawm, ua rau nws tsis tuaj yeem tso lub CT thib ob qhib. Qhov no yog qhov tseem ceeb ntawm kev nyab xeeb uas sib txawv ntawm cov thaiv txuas hluav taws xob kuaj kom zoo thiab cov kev daws teeb meem uas tau npaj tseg siv cov thaiv txuas hluav taws xob txheem thiab cov txuas luv luv tes.

Cov Lus Qhia Tseem Ceeb rau 4mm Txiv tsawb Qhov (Socket Test Disconnect Blocks)

Thaum soj ntsuam cov thaiv kev sib txuas ntawm cov davhlau ya nyob twg rau cov ntawv thov vaj huam sib luag ntsuas, cov lus qhia tshwj xeeb hauv qab no yuav tsum tau saib xyuas kom zoo:

Tam Sim No Ntsuas: Rau CT secondary circuits, qhov rated secondary current (feem ntau yog 1A lossis 5A) txhais qhov kev ntsuas tam sim no tas mus li ntawm lub terminal block. Lub terminal block yuav tsum muaj qhov ntsuas tam sim no tsawg kawg yog sib npaug rau CT secondary current, nrog rau qhov thermal margin txaus rau kev ua haujlwm tas mus li.

Qhov Voltage Ntsuas: Lub thaiv davhlau ya nyob twg yuav tsum tau ntsuas rau qhov siab tshaj plaws voltage uas tuaj yeem tshwm sim thoob plaws cov davhlau ya nyob twg theem ob hauv txhua qhov xwm txheej, suav nrog qhov ua yuam kev lossis transients. Rau CT secondary circuits hauv cov kab ke faib khoom ib txwm muaj, qhov ntsuas ntawm 250V lossis 400V AC / DC feem ntau txaus.

Kev Tiv Thaiv Luv-Circuit: Txawm hais tias CT theem nrab circuits feem ntau tsis raug rau cov teeb meem siab (CT nws tus kheej txwv cov teeb meem theem nrab vim nws qhov impedance qhov chaw), lub davhlau ya nyob twg thaiv yuav tsum muaj peev xwm tiv taus cov kev ntxhov siab ntawm cov khoom siv thiab thermal ntawm qhov siab tshaj plaws prospective fault tam sim no hauv lub voj voog rau lub sijhawm ntsuas.

Kev Tiv Tauj Tiv Tauj: Qhov kev tiv thaiv ntawm cov neeg sib cuag uas nqa tam sim no hauv qhov chaw txuas yuav tsum tsawg kawg nkaus kom tsis txhob muaj qhov yuam kev ntsuas hauv cov ntawv thov ntsuas qhov tseeb. Cov thaiv davhlau ya nyob twg zoo tshaj plaws ua tiav qhov kev tiv thaiv kev sib cuag tsawg dua 1 milliohm.

Kev Ruaj Kho Tshuab: Cov txheej txheem txiav tawm thiab luv luv yuav tsum tau ntsuas rau tsawg kawg yog 500 txog 1,000 lub voj voog ua haujlwm yam tsis muaj kev puas tsuaj ntawm kev ua haujlwm luv luv.

Khoom siv rwb thaiv tsev: Lub cev ntawm lub davhlau ya nyob twg yuav tsum tau tsim los ntawm cov khoom siv rwb thaiv tsev uas muaj zog dielectric uas tiv taus kev taug qab, hluav taws kub, thiab ntsuas rau qhov kub thiab txias ntawm daim ntawv thov. Polyamide (PA) thiab polyphthalamide (PTA) yog cov kev xaiv dav dav rau cov davhlau ya nyob twg qib kev lag luam.

Kev Teeb tsa Vaj Huam Sib Luag: Cov thaiv kawg muaj nyob rau hauv ib theem thiab ob theem kev teeb tsa. Ob theem blocks sib tshooj ob lub voj voog ywj pheej ntsug, tso cai rau ntau lub voj voog kom nyob hauv qhov dav ntawm lub vaj huam sib luag. Qhov kev teeb tsa tsim nyog nyob ntawm tus qauv vaj huam sib luag thiab tus lej ntawm CT circuits.

Yuav Ua Li Cas Xaiv Tus Neeg Muab Khoom Siv Rau Kev Ntsuas Disconnect Terminal Block

Kev xaiv tus neeg muab khoom siv rau kev sim txuas hluav taws xob yog qhov tseem ceeb npaum li kev xaiv cov khoom siv zoo. Tus neeg muab khoom muaj peev xwm tsis yog tsuas yog muab cov khoom tsim nyog xwb tab sis kuj muab kev txhawb nqa kev siv tshuab, kev muaj nyob rau hauv, thiab cov ntaub ntawv pov thawj uas ua rau kev koom ua ke yooj yim rau hauv koj tus qauv vaj huam sib luag.

Nov yog cov qauv tseem ceeb rau kev ntsuam xyuas cov neeg muab khoom ntawm cov khoom siv sib txuas ntawm cov khoom siv sim:

Cov Khoom Siv thiab Kev Txheem: Tus neeg muag khoom puas muaj ntau yam khoom siv sim txuas hluav taws xob uas ua raws li cov qauv thiab qhov loj ntawm lub vaj huam sib luag? Kev ua kom raws li tus qauv thoob plaws tus neeg muag khoom tso cai rau cov neeg tsim vaj huam sib luag los sib sau ua ke lawv cov khoom yuav nrog ib tus neeg muag khoom thaum muaj kev nkag mus rau tag nrho cov kev ntsuas thiab kev teeb tsa uas xav tau rau ntau yam haujlwm sib txawv.

Daim Ntawv Pov Thawj Zoo: Tus neeg muag khoom puas muaj daim ntawv pov thawj tswj kev zoo xws li ISO 9001? Rau cov khoom siv hluav taws xob siv rau hauv kev ntsuas thiab kev tiv thaiv daim ntawv thov, kev sim hom thib peb thiab daim ntawv pov thawj los ntawm lub chaw kuaj mob uas tau lees paub muab kev lees paub tias cov khoom ua haujlwm raws li tau teev tseg. Nrhiav pov thawj ntawm kev sim hom IEC rau lub zog dielectric, lub peev xwm nqa tam sim no, thiab kev ua haujlwm luv luv.

Cov Ntaub Ntawv Txog Kev Siv Tshuab: Ib tus neeg muag khoom uas muaj peev xwm muab cov ntaub ntawv qhia txog kev siv tshuab ua tiav xws li cov duab kos, cov yam ntxwv hluav taws xob, qhov loj me ntawm cov vaj huam sib luag uas pom zoo, thiab cov lus qhia rau kev siv. Cov ntaub ntawv no yog qhov tseem ceeb rau cov neeg tsim vaj huam sib luag thiab cov kws ua haujlwm yuav khoom kom teev meej thiab sib xyaw cov khoom.

Kev Muaj Peev Xwm Kho Kom Haum: Txawm hais tias cov khoom txheem ua tau raws li feem ntau ntawm cov kev xav tau ntawm lub vaj huam sib luag ntsuas, qee qhov kev siv xav tau cov kev teeb tsa tsis yog tus qauv - tus lej tshwj xeeb ntawm cov ncej, lub tshuab luv luv hloov kho, lossis lwm yam khoom siv rau qhov chaw nyuaj. Tus neeg muag khoom uas muaj peev xwm tsim khoom hauv tsev thiab kev txawj ntse engineering feem ntau tuaj yeem muab cov kev hloov pauv tshwj xeeb yam tsis muaj tus nqi thiab lub sijhawm ua tiav ntawm kev tsim kho tag nrho.

Muaj thiab Lub Sijhawm Ua Ntej: Cov phiaj xwm vaj huam sib luag ntsuas feem ntau muaj cov sijhawm xa khoom uas nyuaj heev. Xyuas kom tseeb tias tus neeg muag khoom muaj cov khoom siv txheem txaus los txhawb lub sijhawm xa khoom luv luv. Rau cov xaj loj dua lossis cov qauv tsis yog tus qauv, nkag siab txog lub sijhawm tsim khoom thiab xa khoom ua ntej cog lus.

Tus nqi thiab luv nqi ntau: Rau cov neeg tsim vaj huam sib luag uas yuav cov thaiv kev sib txuas ntawm cov khoom siv sim hauv ntau qhov project, tus neeg muag khoom uas tuaj yeem muab cov nqi sib tw nrog cov sijhawm luv nqi pob tshab muab qhov zoo dua rau kev lag luam.

Kev Txhawb Nqa: Thaum tus neeg tsim vaj huam sib luag ntsib teeb meem nyuaj - kev teeb tsa vaj huam sib luag txawv txawv, qhov kub thiab txias siab, cov yam ntxwv CT thib ob - kev txhawb nqa los ntawm tus neeg muag khoom tuaj yeem yog qhov sib txawv ntawm qhov teeb meem daws tau thiab qhov project qeeb. Soj ntsuam seb tus neeg muag khoom puas kam muab kev txhawb nqa rau daim ntawv thov, cov qauv kuaj, thiab kev sab laj txog kev tsim kho.

Cov Xwm Txheej Siv: Qhov Twg Siv 4mm Banana Socket Test Disconnect Blocks

Cov xwm txheej thov hauv qab no piav qhia txog qhov dav ntawm cov rooj plaub siv rau kev sim txuas cov davhlau ya nyob twg nrog 4 hli txiv tsawb qhov (sockets) hauv cov ntsiab lus ntawm vaj huam sib luag ntsuas:

Cov Vaj Huam Sib Luag Fais Fab Kev Lag Luam: Cov chaw tsim khoom uas muaj cov khoom thauj ntau tshaj 100 kW feem ntau muaj cov vaj huam sib luag ntsuas uas tso saib lub sijhawm tiag tiag kW, kVAR, lub zog fais fab, thiab kev siv hluav taws xob. CT secondary circuits rau cov vaj huam sib luag no siv cov thaiv kev sib txuas lus sim kom tso cai rau kev ntsuas thiab hloov cov cuab yeej yam tsis cuam tshuam lub zog rau cov busbars tseem ceeb.

Kev ntsuas qhov tso zis ntawm lub hnub ci PV inverter: Cov tshuab hluav taws xob hnub ci PV uas txuas nrog lub grid xav tau kev ntsuas qib nyiaj tau los kom ntsuas lub zog xa mus rau lub grid. Cov transformers tam sim no ntawm PV inverter AC output feed metering panels nrog cov peev xwm txiav kev sim, tso cai rau lub tshuab ntsuas hluav taws xob thiab lub tshuab saib xyuas inverter sib koom cov teeb liab CT theem ob.

Cov Vaj Huam Sib Luag Sib Txuas ntawm Generator: Thaum sib txuas cov generator teeb tsa nrog lub grid hluav taws xob lossis nrog ib leeg, cov vaj huam sib luag synchronizing qhia voltage, zaus, thiab lub kaum sab xis ntawm ob lub generator thiab lub busbar. CT secondary test disconnect blocks tso cai rau cov cuab yeej kom raug cais tawm thiab sim thaum lub sijhawm npaj kho generator.

Cov Vaj Huam Sib Luag Tiv Thaiv Relay: Cov relay tiv thaiv rau cov khoom noj tseem ceeb yuav tsum tau kuaj xyuas tas li kom paub tseeb tias lawv qhov kev ntsuas thiab kev ua haujlwm zoo. Cov thaiv kev sib txuas hauv CT secondary circuits pub cov relay tiv thaiv pub rau cov relay xeem teeb tsa kom txuas nrog thiab CT secondaryaries kom raug txheeb xyuas yam tsis tau tshem tawm relay ntawm kev pabcuam.

Kev Soj Ntsuam Kev Faib Hluav Taws Xob Hauv Tsev: Cov tsev lag luam loj siv cov vaj huam sib luag ntsuas los siv cov kev ntsuas ntawm cov neeg xauj tsev, kev tswj hwm kev thauj khoom, thiab cov kev pab cuam teb rau qhov xav tau. Cov thaiv kev sib txuas ntau lub voj voog siab ua rau muaj ntau lub voj voog CT theem nrab hauv cov chaw teeb tsa no.

Cov Kev Xyaum Zoo Tshaj Plaws rau Kev Teeb Tsa rau Kev Ntsuas Kev Sib Txuas ntawm Cov Thaiv Terminal hauv Cov Vaj Huam Sib Luag Metering

Kev teeb tsa cov thaiv kev sib txuas ntawm kev sim kom raug yog qhov tseem ceeb npaum li kev xaiv cov khoom tsim nyog. Cov kev coj ua zoo tshaj plaws hauv qab no txhawb nqa kev ua haujlwm ntev mus ntev:

Kev Ruaj Ntseg Mounting: Lub thaiv davhlau ya nyob twg yuav tsum tau teeb tsa rau ntawm txoj kev DIN uas loj txaus lossis ncaj qha rau ntawm lub vaj huam sib luag backplate siv txoj kev teeb tsa uas cov chaw tsim khoom pom zoo. Kev ruaj ntseg teeb tsa tsis txaus tuaj yeem ua rau muaj kev ntxhov siab ntawm cov khoom siv hluav taws xob dhau sijhawm.

Kev Txiav Hlau Kom Yog: Siv qhov loj ntawm cov xov hlau uas lub chaw tsim khoom pom zoo rau qhov ntsuas tam sim no ntawm CT secondary circuit. Rau 1A lossis 5A CT secondary circuits, qhov loj ntawm cov xov hlau ntawm 2.5 mm² txog 4 mm² yog qhov ib txwm muaj. Yuav tsum siv cov hlau ferrules rau cov xov hlau stranded kom tiv thaiv kev fraying thiab xyuas kom meej tias muaj kev sib cuag siab.

Kev sib xws ntawm polarity: Cov voj voog theem nrab CT muaj cov cim polarity txhais (dot lossis X convention). Txhua lub terminal blocks hauv CT secondary circuit yuav tsum tau wired nrog polarity sib xws kom ntseeg tau tias cov cuab yeej qhia qhov loj thiab kos npe raug. Lub test disconnect block's shorting bar yuav tsum luv cov polarity terminals sib xws ua ke.

Kev Txheeb Xyuas Pom: Tom qab txuas xov hluav taws xob tas, xyuas kom meej tias lub tshuab ua haujlwm luv luv nyob rau hauv qhov chaw raug rau kev ua haujlwm uas xav tau. Hauv qhov chaw txuas, cov xov hlau ntawm cov cuab yeej yuav tsum tau txuas thiab CT thib ob yuav tsum tsis txhob luv luv. Hauv qhov chaw sim, lub bar luv luv yuav tsum tau txuas thiab cov xov hlau ntawm cov cuab yeej yuav tsum nkag tau.

Kev Sau Npe Vaj Huam Sib Luag: Txhua lub thaiv txuas ntawm qhov kev sim txuas yuav tsum muaj daim ntawv lo kom meej meej kom paub tseeb tias nws ua haujlwm rau lub voj voog CT twg. Qhov no ua rau cov txheej txheem txij nkawm yooj yim dua, txo qhov kev pheej hmoo ntawm kev ua yuam kev ntawm tus neeg teb xov tooj thaum lub sijhawm sim, thiab txhawb nqa cov txheej txheem cais tawm kom muaj kev nyab xeeb.

Yog xav paub ntxiv txog cov kev daws teeb meem thaiv davhlau ya nyob twg rau kev ntsuas thiab kev siv cov cuab yeej, mus saib J-Guang's PCB Screw Terminal Block nplooj ntawv khoom thiab daim ntawv teev khoom tiav.

Xaus Lus: Lub Hauv Paus ntawm Cov Txheej Txheem Ntsuas Kev Nyab Xeeb thiab Kev Tswj Xyuas Tau

Cov thaiv kev sib txuas ntawm cov davhlau ya nyob twg uas muaj 4 hli txiv tsawb yog cov khoom me me hauv lub vaj huam sib luag ntsuas, tab sis lawv txoj haujlwm yog qhov tseem ceeb heev. Lawv muab qhov txuas tseem ceeb ntawm cov hluav taws xob transformer theem nrab thiab cov cuab yeej uas ua rau kev ntsuas hluav taws xob ua tau, tib lub sijhawm lav qhov kev nyab xeeb ntawm cov neeg ua haujlwm thiab cov khoom siv los ntawm lawv cov txheej txheem luv luv.

Thaum teev lossis nrhiav cov khoom no, cov qauv kev siv tshuab yuav tsum tseem ceeb dua li tus nqi xwb. Lub terminal block uas tsis muab qhov luv luv txhim khu kev qha, dielectric withstand txaus, lossis kev tiv thaiv kev sib cuag ruaj ntseg yuav ua rau muaj kev nyab xeeb thiab kev ntsuas qhov tseeb uas nws tau teeb tsa los tiv thaiv. Kev ua haujlwm nrog tus neeg muab khoom terminal block uas tuaj yeem ua pov thawj tias muaj cov ntaub ntawv zoo, kev txhawb nqa kev siv tshuab dav dav, thiab kev muaj tas li yog lub hauv paus ntawm kev tsim cov metering panels uas pabcuam lawv cov neeg siv tau zoo dua li ntau xyoo ntawm kev ua haujlwm.

Kev lag luam metering thiab kev tiv thaiv relay yog tsim los ntawm kev ua kom raug, kev ntseeg siab, thiab kev nyab xeeb - peb lub hauv paus ntsiab lus uas txhua tus neeg muab khoom siv ntsuas disconnect terminal block tsim nyog yuav tsum qhia rau nws cov neeg siv khoom.

Cov Lus Nug Feem Ntau

Q: Qhov txawv ntawm lub terminal block uas sim disconnect thiab lub terminal block txheem yog dab tsi?
A: Ib lub thaiv txuas hluav taws xob sim muaj ib lub tshuab txiav thiab luv luv uas tso cai rau CT secondary circuits kom raug cuam tshuam kom muaj kev nyab xeeb rau kev sim thaum tswj lub luv luv ntawm CT secondary txhua lub sijhawm. Ib lub thaiv txuas hluav taws xob txheem tsuas yog muab qhov chaw xaus ruaj khov rau kev sib txuas hlau thiab tsis suav nrog lub luag haujlwm luv luv uas xav tau rau kev ua haujlwm CT secondary circuit kom muaj kev nyab xeeb.

Q: Puas siv tau 4 hli txiv tsawb qhov (socket) kuaj kev sib txuas rau cov hluav taws xob hloov pauv (VT) theem nrab?
A: Yog, cov thaiv kev sib txuas sim siv tau rau VT secondary circuits thiab, txawm hais tias qhov yuav tsum tau ua txawv me ntsis. VT secondary circuits tsis muaj qhov txaus ntshai ntawm qhov qhib-circuit voltage ib yam li CT secondary circuits, tab sis cov thaiv kev sib txuas sim tseem muab lub luag haujlwm tseem ceeb ntawm kev tso cai rau cov cuab yeej kom raug cais tawm rau kev sim lossis hloov pauv yam tsis tau de-energizing lub voj voog thawj zaug. Xyuas kom tseeb tias qhov ntsuas voltage ntawm lub davhlau ya nyob twg xaiv yog txaus rau VT secondary voltage.

Q: Kuv yuav paub li cas yog tias lub tshuab luv luv hauv lub thaiv kev sib txuas sim puas ntseeg tau?
A: Nrhiav cov khoom uas tau raug kuaj hom raws li cov qauv IEC, uas suav nrog kev txheeb xyuas qhov kev ua tau zoo ntawm kev luv luv. Daim ntawv qhia txog tus neeg muag khoom yuav tsum qhia meej txog qhov tsis kam tiv tauj ntawm txoj kev luv luv. Cov blocks zoo tshaj plaws feem ntau qhia txog qhov tsis kam tiv tauj luv luv tsawg dua 10 milliohms. Cov cim pov thawj sab nraud los ntawm cov chaw soj nstuam xws li UL, VDE, lossis KEMA muab kev lees paub ntxiv.

Q: Yuav tsum siv cov xaim loj npaum li cas nrog cov thaiv kev sib txuas hauv CT secondary circuits?
A: Rau CT theem nrab circuits ntsuas ntawm 1A lossis 5A, cov hlau loj ntawm 2.5 mm² txog 4 mm² feem ntau yog teev tseg. Cov hlau me me tuaj yeem siv rau kev khiav luv luv heev, tab sis qhov voltage poob hauv lub voj voog theem nrab yuav tsum tau kuaj xyuas kom ntseeg tau tias nws tseem nyob hauv qhov txwv txaus rau lub nra hnyav ntawm cov cuab yeej. Daim ntawv teev cov ntaub ntawv ntawm lub chaw tsim khoom thaiv davhlau ya nyob twg yuav teev cov hlau pom zoo rau cov khoom tshwj xeeb.

Q: Yuav tsum tau kuaj xyuas lossis hloov cov thaiv davhlau ya nyob twg ntau npaum li cas?
A: Txawm hais tias cov thaiv kev sib txuas tsis muaj lub sijhawm hloov pauv tas li zoo li qee cov khoom siv uas hnav, kev tshuaj xyuas pom tsis tu ncua - feem ntau yog txhua xyoo - yog qhov pom zoo. Kev tshuaj xyuas yuav tsum xyuas kom meej tias cov txheej txheem sib txuas thiab luv luv ua haujlwm zoo, tias cov kev sib txuas hluav taws xob tseem nruj, thiab tias lub tsev rwb thaiv tsev tsis qhia txog kev puas tsuaj lossis taug qab. Txhua lub thaiv uas qhia txog kev sib cuag pitting, taug qab rwb thaiv tsev, lossis lub tshuab puas tsuaj yuav tsum tau hloov tam sim ntawd.

Q: Lub neej ua haujlwm ntawm lub thaiv kev sib txuas ntawm kev sim yog dab tsi?
A: Lub neej ua haujlwm ntawm lub thaiv kev sib txuas sim feem ntau yog ntsuas los ntawm tus neeg tsim khoom hauv cov voj voog ua haujlwm - piv txwv li, 500 lossis 1,000 kev ua haujlwm. Nyob rau hauv cov xwm txheej kev pabcuam ib txwm muaj hauv lub vaj huam sib luag ntsuas, lub thaiv yuav pom tsuas yog ob peb kaum ob qhov kev ua haujlwm sib txuas hauv ib xyoos, txhais tau tias lub neej ua haujlwm tuaj yeem ntev txog 20-40 xyoo lossis ntau dua. Lub neej hluav taws xob feem ntau yog txiav txim siab los ntawm kev ruaj khov ntawm kev tiv thaiv kev sib cuag thiab lub peev xwm dielectric ntawm lub kaw lus rwb thaiv tsev, ob qho tib si uas lwj qeeb qeeb dhau sijhawm nyob rau hauv kev thauj khoom tas mus li thiab kev ntxhov siab ib puag ncig.