Cov Khoom Siv Tiv Thaiv Surge: Nws Yog Dab Tsi thiab Nws Ua Haujlwm Li Cas?

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Cov hluav taws xob nce siab ua rau cov khoom siv puas tsuaj ntsiag to, ua rau lub neej luv dua, thiab ua rau lub sijhawm tsis ua haujlwm uas tsis tau npaj tseg. Kuv feem ntau pom qhov kev pheej hmoo no raug kwv yees qis kom txog thaum cov teeb meem pib tshwm sim thoob plaws cov kab ke tseem ceeb.

Ib cov cuab yeej tiv thaiv kev kub ntxhov yog tsim los tiv thaiv cov khoom siv hluav taws xob thiab khoom siv hluav taws xob los ntawm cov xwm txheej overvoltage ib ntus los ntawm kev hloov pauv lub zog ntau dhau mus rau hauv av kom muaj kev nyab xeeb ua ntej muaj kev puas tsuaj.

Hauv cov ntu hauv qab no, kuv yuav piav qhia txog cov hom khoom siv tiv thaiv kev co ntawm lub zog sib txawv ua haujlwm li cas, qhov twg lawv siv, thiab cov engineers yuav tsum xaiv cov kev daws teeb meem zoo li cas rau cov kab ke kev lag luam.

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Cov Khoom Siv Tiv Thaiv Surge Hom 1 thiab Hom 2 Ua Haujlwm Li Cas?

Cov xwm txheej hluav taws xob ntau yam xav tau cov tswv yim tiv thaiv sib txawv. Cov khoom siv tiv thaiv hluav taws xob hom 1 thiab hom 2 ua haujlwm ua ke los ntawm kev cuam tshuam cov hluav taws xob ntau ntawm ntau qhov chaw hauv lub cev hluav taws xob, tiv thaiv lub zog puas tsuaj kom tsis txhob mus txog cov khoom thauj uas rhiab heev. Lub cuab yeej tiv thaiv hluav taws xob ua haujlwm los ntawm kev saib xyuas cov qib hluav taws xob thiab teb tam sim ntawd thaum lub zog hluav taws xob ntau dhau qhov txwv tsis pub dhau. Cov hluav taws xob ntau no feem ntau yog tshwm sim los ntawm xob laim, kev ua haujlwm hloov pauv hluav taws xob, lossis cov khoom thauj loj. Qhov sib txawv tseem ceeb ntawm Hom 1 thiab Hom 2 yog nyob rau hauv qhov twg thiab li cas lawv cuam tshuam lub zog surge.

Ib hom 1 tiv thaiv hluav taws xob tau teeb tsa rau ntawm qhov nkag mus rau kev pabcuam, sab saud ntawm lub rooj tsavxwm faib khoom loj. Nws yog tsim los tswj cov hluav taws xob siab uas los ntawm xob laim lossis cov tes hauj lwm hluav taws xob. Cov khoom siv no tuaj yeem tso tawm cov hluav taws xob ib nrab ncaj qha mus rau hauv av yam tsis tas yuav tsum tau tiv thaiv sab saud.

Los ntawm qhov sib piv, ib hom 2 tiv thaiv kev kub ntxhov raug teeb tsa rau hauv qab, feem ntau nyob hauv cov vaj huam sib luag faib khoom. Nws txo cov hluav taws xob seem uas hla dhau txheej Hom 1 lossis tsim los ntawm kev hloov khoom siv sab hauv. Ua ke, txoj hauv kev tiv thaiv txheej txheem no txo ​​​​​​kev ntxhov siab rau cov khoom siv hluav taws xob hauv qab.

Hauv cov chaw ua haujlwm tiag tiag, kev cia siab rau ib txheej tiv thaiv tsis txaus. Kev sib koom ua ke ntawm Hom 1 thiab Hom 2 tiv thaiv ua kom lub zog hluav taws xob nce siab maj mam txo qis, tswj cov theem hluav taws xob kom nyob hauv cov kev txwv ntawm cov khoom siv.

Yuav Ua Li Cas Lub Tshuab Tiv Thaiv Surge Type 1 Tswj Cov Hluav Taws Xob Muaj Zog Siab

Cov khoom siv hom 1 tau tsim los kom tiv taus cov hluav taws xob ntau heev thiab ua haujlwm yam tsis muaj kev tiv thaiv hluav taws xob sab saud.

• Tau teeb tsa rau ntawm qhov rooj nkag tseem ceeb ntawm kev pabcuam

• Tsim los rau kev tso tawm hluav taws xob tam sim no

• Feem ntau sim rau cov qauv waveform 10/350 μs

• Qhov tseem ceeb rau cov chaw hauv cov cheeb tsam uas muaj hluav taws xob ntau

Qhov no ua rau cov khoom siv tiv thaiv hluav taws xob hom 1 cov kev daws teeb meem tseem ceeb rau cov chaw tsim khoom lag luam, cov chaw khaws ntaub ntawv, thiab cov haujlwm tsim kho vaj tse uas muaj cov xov hluav taws xob nkag los.

Yuav Ua Li Cas Ib Lub Tshuab Tiv Thaiv Surge Type 2 Txwv Tsis Pub Muaj Residual Overvoltage

Cov khoom siv hom 2 tsom mus rau kev txwv voltage es tsis yog kev tswj hwm tam sim no.

• Tau teeb tsa rau hauv cov laug cam faib khoom

• Teb sai dua rau cov transients qis dua

• Tiv thaiv PLCs, drives, thiab tswj cov khoom siv hluav taws xob

• Txo kev ntxhov siab ntawm kev rwb thaiv tsev

Ib qho xaiv tau zoo cov khoom siv tiv thaiv hluav taws xob hom 2 txo qis qhov kev ua tsis tiav mus sij hawm ntev ntawm cov khoom siv rhiab heev.

Vim Li Cas Kev Tiv Thaiv Sib Koom Tes Tseem Ceeb

Siv Hom 1 lossis Hom 2 ib leeg xwb yuav tsim cov qhov sib txawv ntawm kev tiv thaiv.

• Hom 1 tsis muaj Hom 2 tso qhov hluav taws xob seem tsis raug kuaj xyuas

• Hom 2 uas tsis muaj Hom 1 muaj feem yuav muaj kev phom sij loj heev

• Cov txheej txheem sib koom tes txhim kho kev ua raws li IEC

• Lub sijhawm txij nkawm tau txuas ntxiv mus

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Cov Khoom Siv Tiv Thaiv Surge Protection Hom 1 thiab Hom 2 Siv Tau Qhov Twg?

Yog tias qhov chaw tsis raug yuav ua rau kev tiv thaiv tsis zoo. Cov khoom siv tiv thaiv hluav taws xob hom 1 thiab hom 2 yuav tsum tau siv rau ntawm cov ntsiab lus tshwj xeeb hauv lub tshuab hluav taws xob kom tswj tau qhov kev ntws ntawm lub zog hluav taws xob kom zoo.

Kev siv kuj tseem ceeb npaum li kev xaiv cov khoom siv. Kuv feem ntau pom cov khoom siv tiv thaiv hluav taws xob uas muaj qhov ntsuas zoo tsis ua haujlwm zoo vim tias lawv tau teeb tsa rau qhov chaw tsis raug. Cov khoom siv hom 1 thiab hom 2 ua lub luag haujlwm sib txawv hauv cov qauv hluav taws xob.

Cov khoom siv hom 1 raug siv rau qhov twg lub kaw lus hluav taws xob sib txuas nrog cov tes hauj lwm sab nraud. Qhov no suav nrog cov chaw nkag mus rau cov kev pabcuam hluav taws xob, kev sib txuas ntawm cov kab hluav taws xob saum toj kawg nkaus, thiab cov chaw uas muaj cov kab ke tiv thaiv xob laim sab nraud. Lawv lub luag haujlwm yog tiv thaiv cov hluav taws xob loj ua ntej lawv kis mus tob dua rau hauv qhov chaw teeb tsa.

Cov khoom siv hom 2 raug siv ze rau cov khoom thauj rhiab heev. Lawv tiv thaiv cov tshuab automation, cov motor drives, cov instrumentation panels, thiab cov khoom siv IT los ntawm kev hloov pauv sab hauv thiab cov hluav taws xob seem.

Rau cov chaw ua haujlwm uas xav tau kev tiv thaiv uas ua raws li txoj cai thiab txhim khu kev qha, kev sib txuas ua ke hom 1 tiv thaiv hluav taws xob ntawm qhov rooj nkag kev pabcuam nrog kev tiv thaiv Hom 2 hauv qab yog kev xyaum ua haujlwm engineering uas tau txais kev lees paub dav dav.

Cov Ntawv Thov Tiv Thaiv Surge Hom 1 Hom

• Cov chaw hloov pauv hluav taws xob tsawg

• Cov chaw muaj cov tshuab tiv thaiv xob laim sab nraud

• Cov chaw tsim khoom siv cov kab hluav taws xob saum toj kawg nkaus

• Kev teeb tsa lub zog rov ua dua tshiab

Cov chaw no muaj kev raug hluav taws xob ntau tshaj plaws.

Cov Ntawv Thov Tiv Thaiv Kev Tiv Thaiv Surge Hom 2 Hom

• Cov vaj huam sib luag tswj hwm thiab MCCs

• Cov txee automation thiab PLC

• Cov tsev lag luam uas muaj cov khoom siv hluav taws xob rhiab heev

• Cov laug cam faib khoom lag luam

Ntawm no, ib hom 2 tiv thaiv hluav taws xob tsom mus rau kev txwv cov hluav taws xob uas ua rau cov khoom siv hluav taws xob puas tsuaj raws sijhawm.

Daim Ntawv Sib Piv Daim Ntawv Thov

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Yuav Ua Li Cas Xaiv Hom Khoom Siv Tiv Thaiv Surge Yog?

Kev xaiv hom khoom siv tiv thaiv hluav taws xob tsis raug ua rau muaj kev ruaj ntseg cuav. Kev xaiv kom raug nyob ntawm seb lub kaw lus system topology, qib kev raug hluav taws xob ntau npaum li cas, thiab kev rhiab heev ntawm cov khoom siv.

Kev xaiv lub cuab yeej tiv thaiv kev tawm tsam yuav tsum tsis txhob raws li qhov ntsuas tam sim no xwb. Kuv xav kom pib nrog kev ntsuam xyuas theem ntawm lub kaw lus. Txheeb xyuas cov yam ntxwv ntawm lub zog nkag, qhov zoo ntawm kev sib txuas hauv av, thiab qhov tseem ceeb ntawm cov khoom tiv thaiv.

Cov chaw uas raug xob laim lossis cov xov hlau saum toj kawg nkaus yuav tsum muaj zog cov khoom siv tiv thaiv hluav taws xob hom 1 ntawm qhov rooj nkag mus rau kev pabcuam. Cov khoom siv no yuav tsum ua raws li IEC 61643 cov qauv thiab tswj cov hluav taws xob tawm ntau yam tsis muaj kev puas tsuaj.

Rau kev tiv thaiv sab hauv, kev sib koom tes hom 2 tiv thaiv kev kub ntxhov yuav tsum tau xaiv raws li qhov voltage nominal, qib kev tiv thaiv (Saum), thiab lub sijhawm teb. Cov nqi qis dua Up feem ntau muab kev tiv thaiv zoo dua rau cov khoom siv hluav taws xob rhiab heev.

Qhov tseem ceeb ib yam li ntawd yog qhov deb ntawm kev sib koom tes, qhov ntev ntawm cov cabling, thiab qhov tsis kam ntawm lub earthing. Kev grounding tsis zoo tuaj yeem txo qhov ua tau zoo ntawm SPD, tsis hais qhov ntsuas ntawm lub cuab yeej.

Cov Qauv Xaiv Txuj Ci Tseem Ceeb

• Lub zog nominal ntawm lub cev (Uc)

• Kev ntsuas tam sim no (Hauv / Imax)

• Qib tiv thaiv voltage (Saum toj)

• Ib puag ncig kev teeb tsa

• Ua raws li cov qauv IEC

Cov Yuam Kev Xaiv Feem Ntau

• Siv cov khoom siv Hom 2 yam tsis muaj kev tiv thaiv upstream

• Kev ntsuas tam sim no ntau dhau thaum tsis quav ntsej txog cov nqi Up

• Tsis quav ntsej txog qhov zoo ntawm lub kaw lus grounding

• Kev teeb tsa SPDs deb dhau ntawm cov khoom thauj uas tau tiv thaiv

Cov Lus Qhia Txog Kev Xaiv Uas Pom Zoo

• Kev raug hluav taws xob sab nraud → Yuav tsum muaj hom 1

• Cov khoom siv hluav taws xob rhiab heev → Yuav tsum muaj hom 2

• Cov txheej txheem kev lag luam → Kev tiv thaiv sib koom tes

• Lub sijhawm ua haujlwm tseem ceeb → Cov khaubncaws sab nraud povtseg SPD uas tsis muaj zog

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Xaus lus

Ib qho xaiv tau zoo cov cuab yeej tiv thaiv kev kub ntxhov txoj kev npaj ua ke ntawm Hom 1 thiab Hom 2 kev tiv thaiv yog qhov tseem ceeb rau kev tiv thaiv cov kab ke kev lag luam thiab ua kom muaj kev ntseeg siab rau kev ua haujlwm mus sij hawm ntev.

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Cov Lus Nug Feem Ntau

Qhov txawv tseem ceeb ntawm Hom 1 thiab Hom 2 surge protection devices yog dab tsi?

Cov khoom siv hom 1 tswj cov xob laim muaj zog heev ntawm qhov nkag mus rau kev pabcuam, thaum cov khoom siv hom 2 txwv cov hluav taws xob seem hauv cov kab ke faib khoom.

Puas yog lub cuab yeej tiv thaiv hluav taws xob hom 2 hloov tau lub cuab yeej hom 1?

Tsis yog. Cov khoom siv hom 2 tsis tau tsim los kom tiv taus hluav taws xob ncaj qha thiab yuav tsum tau sib koom ua ke nrog Hom 1 kev tiv thaiv.

Yuav tsum tau nruab ib lub cuab yeej tiv thaiv hluav taws xob hom 1 qhov twg?

Nws yuav tsum tau teeb tsa rau ntawm qhov rooj nkag tseem ceeb, sab saud ntawm lub rooj faib khoom tseem ceeb.

Yuav tsum muaj pes tsawg lub cuab yeej tiv thaiv kev kub ntxhov hauv ib lub tshuab ua haujlwm?

Feem ntau cov txheej txheem kev lag luam xav tau tsawg kawg yog ob txheej: Hom 1 ntawm qhov nkag thiab Hom 2 ze ntawm cov khoom siv rhiab heev.