Surge Protection Device (SPD) yog cov cuab yeej tiv thaiv tsim los txwv tsis pub dhau ib ntus overvoltages thiab hloov cov surge tam sim no, txo qhov kev pheej hmoo ntawm kev puas tsuaj rau cov khoom siv hluav taws xob los ntawm xob laim, kev ua haujlwm ntawm kab sib txuas thiab lwm yam kev cuam tshuam ib ntus. Qhov chaw raug raug cuam tshuam ncaj qha rau SPD kev ua haujlwm. Rau cov chaw tsim khoom, cov tsev lag luam, cov chaw khaws ntaub ntawv, kev sib txuas lus thiab ntau yam tsawg -voltage distribution systems, lub tswv yim layout ntawm SPE yog ib qho tseem ceeb ntawm kev tsim hluav taws xob tiv thaiv.
1.SPD feem ntau siv qhov twg?
SPD feem ntau yog ntsia rau ntawm cov ntsiab lus tseem ceeb hauv kev faib khoom, xws li lub tsev faib khoom loj, pawg thawj coj hauv av, cov khoom faib khoom, thiab ncaj qha mus rau cov khoom siv hluav taws xob tseem ceeb.
Rau cov qauv tsis tshua muaj hluav taws xob faib hluav taws xob, SPD cov tswv yim tiv thaiv tuaj yeem siv nyob ntawm tus qauv thiab hluav taws xob ntawm lub tsev. Thawj theem feem ntau yog nyob ntawm lub hwj chim nkag mus rau hauv lub tsev los tswj cov hluav taws xob hluav taws xob siab thiab lub zog surge. Qhov thib ob theem tuaj yeem ntsia tau rau hauv pem teb lossis lub rooj sib tham zonal. Rau cov cuab yeej rhiab rau qhov hloov pauv ntawm qhov hluav taws xob, kev tiv thaiv zoo tuaj yeem ntsia tau ze ntawm lub cuab yeej nws tus kheej.
Qhov txheej txheem txheej no tso cai rau SPEs nyob rau hauv ntau qhov chaw sib faib kev tiv thaiv kev tiv thaiv, tiv thaiv ib qho khoom siv los ntawm kev muaj zog ntau dhau.
2.Lub ntsiab faib txee yog qhov tseem ceeb installation txoj hauj lwm.
Lub tsev lub ntsiab faib txee feem ntau yog ib qho ntawm qhov chaw tseem ceeb tshaj plaws rau nruab SPD.
Thaum cov kab hluav taws xob sab nraud raug cuam tshuam los ntawm cov nthwv dej loj uas tshwm sim los ntawm xob laim, daim phiaj hloov pauv lossis lwm yam xwm txheej tsis tu ncua, cov nthwv dej loj tuaj yeem taug kev raws kab thiab mus rau hauv cov tsev. Kev teeb tsa ntawm SPD ntawm qhov chaw faib khoom tseem ceeb- qhov twg cov khoom siv hluav taws xob nkag mus rau hauv lub tsev- tuaj yeem hloov pauv qhov nce siab ua ntej nws nthuav dav ntxiv mus rau hauv kab sib faib sab hauv.
Rau cov tsev uas muaj kev tiv thaiv hluav taws xob sab nraud, SPD teeb tsa kev tsim qauv yuav tsum xav txog kev tiv thaiv kev tiv thaiv kuv, hauv av tuav thiab cov khoom siv hluav taws xob.
3.Ground thiab zonal faib boards
Hauv cov chaw ua lag luam loj, cov tsev ua haujlwm, cov khw muag khoom, thiab cov tsev rau pej xeem, SPD kev teeb tsa hauv lub txee loj loj nkaus xwb yuav tsis txaus los npog tag nrho qhov kawg - siv cov khoom siv.
Yog li ntawd, nyob ntawm tus qauv ntawm kev faib khoom, ntau lub hom phiaj tshwj xeeb tso tawm tuaj yeem ntsia tau rau hauv cov chaw xws li hauv pem teb panels zonal faib panels thiab zoning panels. Hauv ntau lub tsev, piv txwv li, kev tiv thaiv thawj zaug tuaj yeem ntsia tau rau hauv lub txee faib khoom loj, thaum lub sij hawm tom qab SPD fais fab faib layout yog raws li hauv pem teb lossis cheeb tsam. Txoj kev no ua kom luv luv ntawm kev tiv thaiv thiab txo qhov cuam tshuam ntawm cov kab txuas ntev ntev ntawm cov khoom siv hauv qab.
4.SPD kuj tseem tuaj yeem ntsia tau rau ntawm cov tswv yim sab ntawm cov khoom siv tseem ceeb
Rau cov khoom siv rhiab rau cov sijhawm dhau los, xws li PLC, kev tswj hwm kev lag luam, servers, kev sib txuas lus iav, kev soj ntsuam thiab cov khoom siv automation --xav txog, kev txiav txim siab tuaj yeem muab rau kev txhim kho davhlau ya nyob twg SPD ze ntawm cov khoom siv hluav taws xob hluav taws xob.
Terminal SPDs feem ntau yog qhov tseem ceeb rau cov lus teb sai thiab kev tiv thaiv qis qis. Terminal SPD tuaj yeem txo qhov cuam tshuam ntawm qhov seem ntawm qhov hluav taws xob ntawm cov khoom siv rhiab tom qab SPD cov txheej txheem ntau ntawm lub zog loj.
Nco ntsoov tias tsuas yog txhim kho SPD ntau dua tsis tas yuav zoo dua. Cov qib sib txawv ntawm SPLs yuav tsum tau ua kom muaj txiaj ntsig raws li qhov system tsis, thaj chaw tiv thaiv thiab kev sib koom ua ke.
5. Spatial kev sib raug zoo BETWEEN SPD thiab SYSTEM
Tom qab SPD kev teeb tsa txoj haujlwm tau txiav txim siab, kev sib txuas hauv av yuav tsum tau ua tib zoo xav.
Thaum SPD tso tawm tsim hluav taws xob surge tam sim no, lub zog surge yuav tsum dissipate sai los ntawm grounding system los yog lwm yam Circuit Court. Yog li, SPD kev sib txuas ua ke yuav tsum yog luv thiab ncaj li sai tau, txo qis qhov tsis tsim nyog khoov lossis kev taug kev.
Yog tias SPD nyob deb dhau ntawm qhov chaw sib txuas lossis cov kab txuas ntev dhau lawm, qhov kev hloov pauv sai ntawm cov surge tam sim no tuaj yeem ua rau SPD nws tus kheej los tsim cov hluav taws xob loj, yog li cuam tshuam rau SPD qhov kev tiv thaiv tiag tiag.
6. Qhov chaw sib txawv ntawm SPD thiab teeb liab SPD
Ntau hom SPD yog tsim los rau ntau hom circuits.
Fais fab SPDs feem ntau yog siv hauv AC lossis DC DC systems thiab feem ntau yog ntsia rau ntawm cov kab hluav taws xob hauv cov khoom faib khoom, thawv lossis khoom siv hluav taws xob.
Lub teeb liab SPDs, ntawm qhov tod tes, yog siv rau kev sib txuas lus, cov ntaub ntawv, tswj thiab ntsuas kab. Piv txwv li, qis-voltage teeb liab kab xws li kab sib txuas lus, RS485 txuas kab thiab Ethernet kab nyob rau hauv industrial automation systems tej zaum yuav nruab nrog cov teeb liab processors raws li cov kev cai tshwj xeeb.
Yog tias ib lub cuab yeej txuas nrog ob txoj kab hluav taws xob thiab cov kab sib txuas lus, kev tiv thaiv tsuas yog cov kab hluav taws xob tsis tas yuav lav kev tiv thaiv zoo. Nyob rau hauv cov kev siv engineering siv, hom interface thiab circuit architecture ntawm lub cuab yeej yuav tsum tau txiav txim siab, thiab tag nrho txoj hauv kev yuav tsum yog
7. Cov chaw teeb tsa yuav tsum raug txiav txim siab raws li rooj plaub-los ntawm- rooj plaub.
Cov tsev sib txawv thiab cov khoom siv sib txawv muaj qhov sib txawv ntawm cov hluav taws xob, yog li SPD tuaj yeem ntsia tau rau ntau qhov chaw.
Hauv cov vaj tsev nyob thiab kev lag luam, tshwj xeeb - cov khoom siv lub hom phiaj feem ntau yog ntsia ua ntej ntawm cov khoom siv hluav taws xob nkag thiab cov khoom siv hluav taws xob.
Nyob rau hauv ib puag ncig kev lag luam, kev saib xyuas yuav tsum tau them tsis tsuas yog rau lub ntsiab kev faib khoom, tab sis kuj rau lub cev muaj zog loj, zaus converter tsav, tsis siv neeg tswj cov khoom, ntau lawm machinery installation cheeb tsam.
Hauv ib puag ncig ntawm cov chaw zov me nyuam cov ntaub ntawv thiab chav sib txuas lus, qhov tseem ceeb yog muab tso rau hauv ntau- theem kev tiv thaiv hluav taws xob, kab sib txuas lus thiab cov khoom siv tseem ceeb.
SPD configuration yuav tsum coj mus rau hauv tus account tiag tiag kab ntev, grounding tej yam kev mob, thiab kev tiv thaiv xob laim tsim tshwj xeeb rau cov khoom siv sab nraum zoov, ntev - kab nyob deb, thiab cov khoom siv nyob rau hauv cov cheeb tsam uas muaj xob laim siab.
8.Dab tsi lwm yam yuav tsum tau xav txog thaum txhim kho SPD?
Qhov chaw ntawm kev tiv thaiv surge tsis tuaj yeem txiav txim siab los ntawm lub cev nyob deb nkaus xwb; Kev sib raug zoo ntawm SPD thiab lub zog hluav taws xob yuav tsum raug txheeb xyuas.
Ua ntej, xyuas kom meej tias qhov ntsuas hluav taws xob ntawm lub kaw lus yog raws li SPD's Maximum Continuous Operating Voltage (MCOV). Tom ntej no, xaiv qhov tsim nyog SPD hom, tso tawm muaj peev xwm thiab qib ntawm kev tiv thaiv raws li qhov xav tau ntawm ib puag ncig surge.
Kev sib koom tes ntawm kev tiv thaiv overcurrent, hauv av hom, kab ntev thiab SPD qib yuav tsum tau txiav txim siab.
Cov txheej txheem sib txawv thiab Cov Txheej Txheem Kev Sib Txuas yuav txawv, yog li kev teeb tsa tiag tiag, tsim thiab tsim kho yuav tsum ua raws li cov khoom lag luam thiab cov qauv siv hluav taws xob tiv thaiv hluav taws xob.
Cov lus nug nquag
Puas tuaj yeem tiv thaiv kev tiv thaiv ncaj qha ntawm ib sab ntawm cov khoom siv?
Yog lawm, "point of use" SPD tuaj yeem ntsia tau rau hauv cov khoom siv rhiab heev, nyob ntawm cov khoom siv qhov kev thuam thiab cov qauv hluav taws xob. Txawm li cas los xij, qhov no feem ntau muab cov txheej txheem tiv thaiv los ntawm cov dej ntws SPD, es tsis yog cia siab rau cov cuab yeej nkaus xwb -level SPD.
Yuav tsum muaj kev tiv thaiv surge raug ntsia rau hauv cov khoom faib tawm?
Ntau yam tsawg -voltage SPDs raug ntsia rau ntawm cov khoom siv hluav taws xob lossis cov vaj huam sib luag. Cov txheej txheem kev teeb tsa tshwj xeeb nyob ntawm SPD tsim, muaj vaj huam sib luag, thiab cov khoom yuav tsum tau teeb tsa.
Puas yog SPD ze rau lub cuab yeej li sai tau?
Rau qhov taw tes - ntawm - siv kev tiv thaiv, txo qhov ntev ntawm cov kab hluav taws xob ntawm SPD thiab cov cuab yeej tiv thaiv feem ntau yuav pab txo qis qhov cuam tshuam ntawm cov hluav taws xob seem; Txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tsum xav txog qib kev tiv thaiv thoob plaws hauv kev faib khoom.
Yuav xav tau pes tsawg tus neeg tiv thaiv ntxiv rau daim phiaj faib khoom?
Tsis muaj tus lej tas. Kev tsim qauv yuav tsum ua raws li cov qauv hauv tsev, kev faib hluav taws xob hierarchy, qhov ntev ntawm Circuit Court, cov cuab yeej tseem ceeb thiab kev pheej hmoo cuam tshuam nrog xob laim thiab surges.
Cov ntsiab lus
Lub installation txoj hauj lwm ntawm surge tiv thaiv ntaus ntawv ncaj qha cuam tshuam cov hauj lwm zoo ntawm surge tiv thaiv ntaus ntawv. Cov txheej txheem faib khoom feem ntau siv cov txheej txheem tiv thaiv txheej txheem - npog qhov kawg ntawm cov khoom xa khoom loj, muab faib lossis hauv av faib lub thawv, thiab cov khoom siv tseem ceeb - thiab kho SPD rau cov yam ntxwv ntawm cov kab hluav taws xob, cov kab teeb liab, thiab cov khoom siv nws tus kheej. Kev saib xyuas kuj yuav tsum tau them rau qhov kev sib txuas ntawm qhov deb ntawm SPD thiab cov av hauv av, qhov system voltage compatibility thiab kev tiv thaiv kev sib koom ua ke.
Rau cov haujlwm tshwj xeeb, SPD qauv, qhov chaw teeb tsa thiab ntau npaum li cas yuav tsum tau txiav txim siab raws li qhov tseeb ntawm cov tshuab hluav taws xob thiab cov qauv siv tau thiab tsim thiab teeb tsa los ntawm cov kws tshaj lij.