Surge tiv thaiv pab kiag li lawm rau kev siv

Cov ntawv thov kev lag luam suav nrog ntau yam khoom siv uas xav tau tiv thaiv los ntawm kev cuam tshuam ntawm surges. Lawv raug nqi ntau rau tus tswv lub tuam txhab: tus nqi yuav yog qhov loj thiab tsis ua tiav, lossis txawm hloov, ntawm cov cuab yeej ntawd, yuav raug kev poob nyiaj loj, tej zaum yuav ua rau lub neej muaj sia ntawm cov tuam txhab. Lub ntsiab lus tseem ceeb, los ntawm qhov kev pom ntawm cov koomhaum ua lag luam, yog cov neeg ua haujlwm: lawv siv cov khoom siv hluav taws xob thiab, thaum muaj kev kub ntxhov, lawv lub neej yuav raug kev pheej hmoo. Cov lus tseeb tau hais los saum toj no, nrog rau lwm cov laj thawj, sawv cev rau lub laj thawj tseem ceeb vim li cas ib tug yuav tsum nrhiav kev tiv thaiv los ntawm kev surges. Txoj haujlwm no siv kev tiv thaiv sab hauv thiab sab nraud los ntawm xob laim, xws li cov davhlau huab cua, tso av, tiv thaiv busbar, pawm hluav taws xob, txhua yam sib koom ua ke hu ua surge tiv thaiv cov cuab yeej, SPD. Muaj ntau lub tuam txhab uas tsim cov plethora ntawm cov cuab yeej, tsis yog txhua tus ntawm lawv yog qhov tsim nyog rau cov ntawv thov kev lag luam.

Lub plawv ntawm nws tag nrho, raws li cov xwm txheej ib txwm muaj, lus dag hauv kev tswj hwm lossis kev cai lij choj uas yuav tsum tau ua. Hauv qhov xwm txheej tshwj xeeb no, nws yog tus qauv EN 62305 Xob Tiv Thaiv, Ntu I txog 4. Cov ntawv nyeem tseem hais txog qee yam kev poob, muaj kev pheej hmoo, tiv thaiv xob laim tiv thaiv raws li qib kev tiv thaiv xob laim. Muaj plaub theem ntawm kev tiv thaiv xob laim (Kuv txog IV) uas qhia kom meej cov tsis ntawm xob laim; cov qib kev tiv thaiv yog qhov ua haujlwm ntawm qib kev pheej hmoo. Hauv kev siv ntau yam kev lag luam, lub tsev raug faib raws li theem I lossis II. Qhov no sib haum mus rau lub siab kawg cov nuj nqis ntawm xob laim tam sim no kuv_imp (tus raug mob tam sim no nrog rau cov qauv 10/350 µs) siab txog li 200 kA. Ib qho kev kwv yees uas tsim nyog qhia tau tias 50% ntawm tag nrho I_imp tam sim no raug ntes los ntawm huab cua davhlau ya nyob rau hauv thiab xa mus rau hauv qhov chaw tso av. Qhov seem 50% dhau los ua qhov sib luag ntawm cov chaw nkag (piv txwv li ntawm cov neeg sab nraud nkag mus rau hauv lub tsev), feem ntau mus rau IT thiab kev sib txuas lus cable, hlau kav thiab LV fais fab xaib cable.

Hauv kev coj ua tsis ncaj ncees feem ntau, SPD xav tau kev ntes kom raug ntau txog 100 kA. Thaum muab faib rau hauv ib tus neeg strands, qhov tam sim no tus nqi ntau npaum li cas ntawm 25 kA rau ib qhov strand (siv TN-C) system. Yog vim li ntawd peb thiaj xav kom npaj cov tswv ntawm LV cov chaw faib (hauv cov tsev tsim nyog raws li LPL I tiv thaiv qib) haum nrog cov PWG 50 GR kaw lub txim sib txawv nrog roj txhaws. Ua SPD Hom 1, cov khoom siv tau lees tias muaj kev sib luag ntawm lub peev xwm thiab pov tseg ntawm lub teeb hluav taws xob tam sim no zoo li kev hloov pauv uas tau tsim hauv cov hluav taws xob xa hluav taws xob nkag mus hauv tsev.

Nws muaj peev xwm ntes I_imp dej ntws loj li 50 kA. Chav nyob rau ib qho ntawm tus kheej cov vaj tse ces yuav tsum tau haum nrog cov PWG 25 GR, kev sib xyaw ntawm SPD Hom 1 thiab 2, uas muaj lub tshuab hluav taws xob ob tog sib txawv rau kev nyab xeeb siab dua thiab muaj 25 kA ntawm cov neeg raug ntes tam sim no. Hloov mus rau theem nrab thiab tswj txee yuav tsum tau nruab nrog SPD Hom 2. Ib qho piv txwv ntawm chav kawm ntawd hauv peb cov khoom lag luam yog cov SWB 40, uas yog muab los ua kom tiav, kaw ntaws ntog los yog nrog cov hloov hloov tau.

Yog tias cov khoom siv tiv thaiv nyob hauv thaj tsam 5 m los ntawm kev hloov pauv hauv qab lossis tswj lub txee, cov kab ke yuav tsum tau txuas ntxiv nrog SPD Hom 3 chav tsev, piv txwv li, TLP10. Nws yog qhov loj-lim lim nrog attenuation min. 30 dB hauv qhov zaus band 0.15 - 30 MHz uas tseem muaj cov khoom siv tiv thaiv - varistors tsim rau cov ntsuas hluav taws xob ntawm 16 txog 400 A. Nyob rau hauv qhov xwm txheej ntawd, qhov tsis muaj zog sib cais tiv thaiv LC63 xav tau ntxig ntawm SPD Hom 2 thiab 3 los muab kev sib raug zoo. ntawm cov neeg raug txhom. Cov xov tiv thaiv xav tau yuav tsum tau muab nruab nrab ntawm kev hloov pauv thiab cov cuab yeej tiv thaiv rau nws ua haujlwm kom raug.

LSP kuj tseem muaj kev tiv thaiv rau cov xwm txheej uas lub ru tsev ntawm lub tsev muaj yees duab photovoltaic vaj huam sib luag. Peb pom zoo yog tus SLP40-PV cov koob uas tso ua ntej inverter thiab nws sab hauv yog haum nrog cov khoom sib txuas uas tau xa tawm thaum tsis ua haujlwm (dhau ntawm qhov tsis txaus siab) ntawm cov khoom sib txawv thiab nrog cov tshuab nres, uas tau muab tso nruab nrab ntawm cov hluav taws xob uas tsis muaj hluav taws xob los npaj cov kev mob zoo tshaj plaws los tua DC DC arc. Surge kev tiv thaiv rau kev hloov tam sim no yog qhov tsim nyog, qhov kev xaiv zoo tshaj plaws yog tus FLP7-PV series.

Peb pom zoo tias cov neeg ntes cov hom no tau nruab rau hauv cov chav xws li chav tsev neeg rau khoom, chav tswj, thiab chaw ua haujlwm. Tele-Defender-RJ11-TELE rau kev tiv thaiv ntawm cov cuab yeej sib txuas lus, Net-Defender-RJ45-E100 rau kev tiv thaiv kev xa cov ntaub ntawv thiab cov cim qhia, COAX-BNC-FM kev tiv thaiv cov cuab yeej siv uas ua tiav cov kis kab mob video, Net-Defender-ND-CAT-6AEA yog tsim los rau cov koos pis tawj ua ntej nkag rau daim npav network thiab lawv yog lub hom phiaj tsim los rau kev tiv thaiv thiab cov ntaub ntawv xa xov rau hauv Tsim 5 network, thiab RJ45S-E100-24U rau kev teeb tsa hauv 19-nti cov xa tawm ntawm cov neeg rau zaub mov rau kev tiv thaiv ntawm cov ntaub ntawv xa hauv computer tes hauj lwm: cov cuab yeej muaj cov hlua RJ45 txuas ntxiv nrog cov LSA-PLUS txuas. Txog kev tiv thaiv cov ntaub ntawv thiab kab kev sib txuas lus thiab rau I & C ntsuas thiab tswj cov kab ntau lawm, tshuab, thiab cov cuab yeej tseem ceeb, peb pom zoo kom siv FLD2 koob uas xa kev tiv thaiv nrog xob ntes lub cev thiab hluav taws xob-voltage-hluav taws xob diodes. Lawv muaj nyob rau hauv ntau tus qauv nrog xaiv ntau ntawm cov khub thiab rated ua hauj lwm voltage nyob rau hauv ib tug muab koob. Rau kev sib txuas lus nrog RS 485 serial interface, peb muab kev tiv thaiv ntawm cov kab uas siv FLD2 series uas tiv thaiv cov khoom siv txuas nrog tiv thaiv kev sib hloov thiab ntev. Kev tiv thaiv ntawm cov koob yees duab thiab cov teeb tsa ua yeeb yaj kiab video, tshwj xeeb tshaj yog nyob hauv cov hluav taws xob tiv thaiv kev ruaj ntseg thiab hluav taws xob tiv thaiv hluav taws xob EPS siv FLPD2 nrog cov khoom tsis-tso tawm rau tam sim no Imax mus txog 6.5 kA. Kev tiv thaiv cov cuab yeej txuas nrog kav hlau txais xov kab nrog coaxial cable yuav tsum muaj nrog cov tiv thaiv kom zoo. LSP muaj ntau hom coaxial tiv thaiv rau ntau yam ntawm cov khoom sib txuas thiab cov chav kawm ua tau zoo uas tuaj yeem siv rau ntau yam kev siv. Cov SPD no muaj cov xob laim tshwj xeeb ntes nrog lub siab tshaj tawm tam sim no ntawm Imax (8/20 )s) = 10 kA los muab kev tiv thaiv kom zoo ntawm kev txais tos thiab tshaj tawm hauv xov tooj cua tiv thaiv kev cuam tshuam ntawm lub teeb hluav taws xob nyob ze thaj tsam. Lawv muab cov ntawv qhia zoo ntawm recoil tsis pub tsawg dua 20 dB.

Cov ncauj lus ntawm kev tiv thaiv surges tsis yog ib qho yooj yim; kev tsim qauv kom yog nyob ntawm ntau tus lej txhawb. Peb tab tom thov koj thov hu rau peb cov neeg sawv cev muag uas tsim nyog uas yuav zoo siab los qhia koj hauv kev xaiv hom kev tiv thaiv kom muaj kev tiv thaiv kom muaj kev tiv thaiv zoo ntawm koj cov cuab yeej thiab txo qis ntawm kev puas tsuaj thiab koj cov vaj tse.

Qhov yuav tsum muaj rau kev siv Cov Khoom Tiv Thaiv Tsis Txaus Kho (SPDs) hauv Chaw Haujlwm Tswj Chaw Panels

Surge Protective Devices (SPDs) feem ntau siv rau hauv kev lag luam tswj hwm. Cov lus hauv qab no yog ib qho kev faib tawm los ntawm SPD hom thiab yuav ua li cas lawv tuaj yeem siv hauv cov chaw uas tsis muaj Cov txheej txheem piav qhia. Cov tseev kom muaj rau ntawm Qhov Kev Ntsuas thiab Kev Ua Phem Qis tam sim no (NDC) kev ntsuas ntawm SPD tau teev nyob hauv qab no. SPDs uas siv sab nraum cov lus qhia ntawm lub rooj no yuav tsum muaj Kev piav qhia Cov Txheej Txheem. Nyob ntawm qhov ntsuas ntawm SPD, cov lus qhia no tuaj yeem ua tau zoo tshaj yog tias kev ntsuas ntsuas engineering.

Lub rooj rau siv rau "Ib-Chaw Nres Nkag" SPDs, uas yog cov feem ntau muaj. Qhov chaw uas muaj "Ob-Chaw Nres Nkoj" SPD siv, nws yuav tsum tso cai hom nyob hauv cov lus saum toj no, raws li kev siv vaj huam sib luag, thiab siv nyob rau hauv nws cov cim ntaus nqi, suav nrog Kev Ntsuas luv luv tam sim no (SCCR). Thaum ob-chaw nres nkoj Hom 3 SPD tsis muaj cim nrog SCCR, nws tau kwv yees tias yog 1000A. Yog tias Lub Nkag Nkag ntawm Ob-Port raug lees paub nrog Daim Ntawv Sau 4 hauv Cov Ntawv Teev Cov Ntaub Ntawv Nplooj Ntawv (qhia tias yuav tsum tau tiv thaiv sab nraud), SPD yuav tsum tau ua raws li kev piav qhia.

• R / C txhais qhov Paub Zoo Txheej Txheem

1, Nrog rau cov ntawv sau cim "Suitable rau Kev Siv Ua Cov Khoom Siv Kev Pab Cuam"

2, Qhov ntsuas hluav taws xob voltage ntawm SPD yuav tsum tsawg kawg ntawm qhov hluav taws xob ntawm qhov hluav taws xob tag nrho (LL) rau txhua hom qauv (piv txwv li LN, LL, LG). Piv txwv, cov ua haujlwm ntsuas 277 / 480V yuav tsum siv SPD ntsuas 480V rau txhua hom qauv; cov ua haujlwm ntsuas rau 120 lossis 120/240 yuav tsum siv SPD ntsuas 240V rau txhua hom.

SPD Cov Lus Txhais:

Ib Qhov Chaw Nres Nkoj - SPD hla thoob-txoj-kab.

Ob Chaw Nres Nkoj - SPD yog thoob plaws-txoj-kab, ntxiv rau cov hluav taws xob ntxiv hauv cov teeb nrog ib lub nra. Kev ntws tawm tam sim no los ntawm cov cuab yeej no yuav tsum tsis pub dhau nws cov qhab nia tam sim no.

Sau ntawv - Qhia meej txog ntawm cov cai:

• Qhov twg hais tawm Cov Voltage yog, MCOV (Qhov Ntau Nrho Kev Ua Haujlwm Nrov Nrov) qhov tseem ceeb yuav yog
• Nominal Kev Khomob Tam Sim No (NDC): Kuj tseem raug xa mus rau IN. Cov kev ntaus nqi ib txwm yog 3kA, 5kA, 10kA, lossis 20kA.Definitions - los ntawm UL1449 (cov ntaub ntawv)

Cov Kev Ntaus (siv rau cov ntawv pov thawj ua ntej lub Plaub Hlis 2010):

Hom 1 - Puag txuas nrog SPDs npaj rau nruab nruab nrab ntawm theem nrab ntawm qhov kev pabcuam hloov pauv thiab cov kab sab ntawm cov kev pabcuam cov khoom siv hluav taws xob ntau dhau, nrog rau sab nrau, nrog rau cov watt-teev meter qhov (socket) thaiv thiab npaj kom raug ntsia tsis muaj sab nraud sab nraud. tiv thaiv lub cuab yeej.

Cov cuab yeej siv no yog Cov Npe.

Yam 2 - Ruaj Khov txuas nrog SPD uas npaj rau kev teeb tsa sab ntawm chaw pabcuam ntawm cov khoom siv thauj khoom siv tshaj dhau cov twj; suav nrog SPDs uas nyob ntawm cov ceg ua haujlwm.

Cov cuab yeej siv no yog Cov Npe.

Hom 3 - Taw tes ntawm kev siv SPDs, ntsia ntawm qhov tsawg kawg yog tus kav ntev ntev 10 metres (30 ko taw) los ntawm lub vaj huam sib luag kev pabcuam hluav taws xob mus rau qhov kev siv, piv txwv li, txuas qaum, txuas ntsaws ncaj qha, hom txais thiab hom SPDs ntsia ntawm kev siv cov cuab yeej siv muaj kev tiv thaiv. Saib cim rau hauv 64.2. Qhov deb li cas (10 meters) tsuas yog tshwj xeeb ntawm cov neeg tsav tsheb uas tau muab nrog lossis siv los txuas cov SPDs.

Cov cuab yeej siv no yog Cov Npe.

Hom 4 Cov Txheeb Xyuas SPDs, suav nrog cov feem tsis sib xws thiab cov khoom sib xyaw.

Cov khoom siv no tau lees paub tias "Hom 4 rau siv nyob rau hauv cov ntawv xxx" uas xxx tej zaum yuav yog 1, 2, 3, lossis "lwm yam". Cov kev ntaus nqi (siv rau cov ntawv pov thawj tom qab lub Plaub Hlis 2010):

Hom 1 - Puag txuas nrog SPDs npaj rau nruab nruab nrab ntawm theem nrab ntawm qhov kev pabcuam hloov pauv thiab cov kab sab ntawm cov kev pabcuam cov khoom siv hluav taws xob ntau dhau, nrog rau sab nrau, nrog rau cov watt-teev meter qhov (socket) thaiv thiab npaj kom raug ntsia tsis muaj sab nraud sab nraud. tiv thaiv lub cuab yeej.

Cov cuab yeej siv no yog Cov Npe.

Yam 2 - Ruaj Khov txuas nrog SPD uas npaj rau kev teeb tsa sab ntawm chaw pabcuam ntawm cov khoom siv thauj khoom siv tshaj dhau cov twj; suav nrog SPDs uas nyob ntawm cov ceg ua haujlwm.

Cov cuab yeej siv no yog Cov Npe.

Hom 3 - Taw tes ntawm kev siv SPDs, ntsia ntawm qhov tsawg kawg yog tus kav ntev ntev 10 metres (30 ko taw) los ntawm lub vaj huam sib luag kev pabcuam hluav taws xob mus rau qhov kev siv, piv txwv li, txuas qaum, txuas ntsaws ncaj qha, hom txais thiab hom SPDs ntsia ntawm kev siv cov cuab yeej siv muaj kev tiv thaiv.

Cov cuab yeej siv no yog Cov Npe.

Hom 1, 2, 3 Txheej Txheem Sib Tham - Muaj Hom 4 cov khoom sib dhos ua ke nrog kev tiv thaiv sab hauv lossis sab nraud luv.

Cov no yog cov sibtham uas zoo ib yam li UL508's "Qhib Hom Ntaus." Lawv tuaj yeem yog DIN kev tsheb nqaj hlau tso rau kev teeb tsa ua vaj huam sib luag. Hom 1 thiab 2 cov koomhaum sibtham tau dhau mus luv luv hauv kev sib tw.

Hom 4 Txheej Txheem Sib Tham - Lub Rooj Sib Tham Sib Tham uas muaj ib lossis ntau hom 5 yam ua ke nrog cov tsis sib txuas (siv sab nraud lossis sab nraud) lossis txhais tau tias ua raws li cov kev ntsuas tam sim no hauv UL1449 ntu 44.4 (4 tsab). Cov cuab yeej siv no tau lees paub, feem ntau tsis sib xws muaj qee yam kev tiv thaiv thermal. Lawv tuaj yeem lossis tsis muaj kev tiv thaiv luv luv hauv Circuit Court.

Hom 5 - Kev faib tawm feem cuam tshuam kev siv zog, xws li MOVs uas yuav raug teeb tsa ntawm PWB, txuas nrog los ntawm nws cov coj lossis muab nyob rau hauv ib puag ncig nrog cov txhais tau tias kev ua haujlwm thiab cov xov txuas.

Cov cuab yeej siv no raug lees paub, feem ntau tsis txiav txim siab tsis muaj kev tiv thaiv thermal.