Xyoo 2023-11-13
Lub luag haujlwm ntawm hnub ci DC surge protectors yog dab tsi?Kuv xav tias cov kws tsim hluav taws xob feem ntau yog qhov tseeb heev.xob laim raws li kev puas tsuaj loj heev, qhov tshwm sim ntawm xob laim tshwm sim los ntawm kev hloov pauv ntawm overvoltage overcurrent yog ib qho yooj yim heev ua rau kev puas tsuaj rau lub tsev cov khoom siv hluav taws xob, tshwj xeeb tshaj yog cov khoom siv hluav taws xob, uas ua rau kev lag luam ncaj qha thiab tsis ncaj qha rau kev lag luam.Yog li ntawd, kev tiv thaiv xob laim thiab kev tiv thaiv kev nyab xeeb hauv surge tiv thaiv tshuab tau dhau los ua qhov chaw kub tam sim no.Yog li, DC surge protectors yuav tsum xaiv li cas?
Nrog rau kev txhim kho thev naus laus zis, cov khoom siv hluav taws xob tau dhau los ua ntau thiab ntau haiv neeg, thiab lawv cov ntawv thov tau dhau los ua ntau dua.Txawm li cas los xij, qhov ntsuas hluav taws xob tsis zoo ntawm cov khoom siv hluav taws xob no feem ntau qis dua li cov khoom siv hluav taws xob tsawg, yog li lawv muaj kev cuam tshuam rau qhov hloov pauv ntawm qhov hluav taws xob, piv txwv li, kev puas tsuaj los ntawm qhov hluav taws xob hluav taws xob.Lub npe hu ua surge, tseem hu ua transient overvoltage, yog qhov hloov pauv hloov pauv hloov pauv hloov pauv uas tshwm sim hauv Circuit Court thiab feem ntau tuaj yeem kav ntev txog ib lab thib ob hauv ib lub voj voog, xws li hauv huab cua xob laim, xob laim pulses yuav txuas ntxiv tsim hluav taws xob. kev hloov pauv hauv Circuit Court.
220V Circuit Court system yuav tsim ib qho kev hloov pauv tam sim no tuaj yeem ncav cuag 5000 lossis 10000V, uas tseem hu ua surge lossis transient overvoltage.Ntau qhov chaw xob laim hauv Suav teb, thiab xob laim yog qhov tseem ceeb hauv kev tsim hluav taws xob hluav taws xob hauv kab, yog li nws yog qhov tsim nyog los ntxiv dag zog rau kev tiv thaiv xob laim hauv qhov hluav taws xob tsawg-voltage.
SPD surge tiv thaivhais tias overvoltage protector, lub hauv paus ntsiab lus ntawm kev ua hauj lwm yog hais tias thaum lub hwj chim kab, teeb liab kis tau tus mob kab transient overvoltage, surge protector yuav overvoltage ntws los txwv qhov voltage nyob rau hauv qhov ntau ntawm voltage uas cov cuab yeej muaj peev xwm tiv taus, yog li tiv thaiv cov cuab yeej los ntawm voltage shocks.
Surge protector nyob rau hauv ib txwm muaj teeb meem, nyob rau hauv ib tug siab kuj lub xeev, tsis muaj to ntawm tam sim no;thaum muaj overvoltage nyob rau hauv Circuit Court, lub surge protector yuav tshwm sim nyob rau hauv ib tug luv luv lub sij hawm ntawm lub sij hawm, lub overvoltage zog to, tiv thaiv cov khoom;overvoltage ploj mus, lub surge protector los kho lub siab tiv thaiv lub xeev, yuav tsis cuam tshuam rau ib txwm fais fab mov txhua.
Tam sim no, kev tsim ntawm dc hnub ci surge protector tseem muaj ntau qhov tsis txaus ntawm qhov kev tsim kho tiag tiag ua rau muaj ntau yam teeb meem, thiab txawm tias qhov project yuav ncua, raws li hauv qab no:
1) Cov lus piav qhia ntawm tus qauv tsim yog qhov yooj yim heev, lub ntsiab lus tsis meej meej, thiab cov kev xav tau ntawm kev teeb tsa tsis yog qhov tshwj xeeb txaus, uas tuaj yeem ua rau muaj kev tsis meej pem hauv kev tsim kho thiab yuav ua rau muaj kev puas tsuaj lossis nyiaj txiag poob rau cov khoom siv hluav taws xob. tiv thaiv.
2) Tus tsim ntawm DC surge protector tsis hloov pauv tau txaus, thiab qee zaum txawm siv ncaj qha rau kev tiv thaiv hluav taws xob ruaj khov, tsis yog raws li hauv av ntawm cov txheej txheem faib rau cov phiaj xwm tsim, yuav ua rau muaj kev tiv thaiv hluav taws xob hauv cov xov hlau tshwj xeeb. installation yuam kev.
3) nyob rau hauv daim duab kos duab, qhov kev tiv thaiv kev tiv thaiv tsis tiav, xws li kev tiv thaiv hluav taws xob theem UP, txawm tias tawg-pov thawj, qhov siab tshaj plaws kev khiav hauj lwm voltage Uc thiab lwm yam tseem ceeb tsis tsim, los yog qee qhov tsis raug. , ua rau kev ua haujlwm tiag tiag ntawm qhov surge protector tsis ua haujlwm lossis kev puas tsuaj rau cov khoom siv hluav taws xob.
4) Cov qauv tsim tshwj xeeb tsis qhia meej.Nyob rau hauv dav dav, kom muaj ib tug ncauj lus kom ntxaws piav qhia txog tus tsim ntawm lub surge protector rau cov tsim phau ntawv, xws li kev tsim kho txheej txheem cej luam, lub hauv paus rau kev tsim, seb puas suav nrog cov ntaub ntawv hluav taws xob, surge protector ntaus ntawv tsim qib kev tiv thaiv.
1) SPD surge protector design description: project overview, building lightning protection classification, the base for design, electronic information systems, xob laim tiv thaiv theem, grounding system, txoj kev cable nkag mus rau hauv tsev, grounding resistance requirements, etc.
2) Sau qhov chaw ntawm lub surge protector installation, hluav taws xob lub thawv naj npawb, theem ntawm kev tiv thaiv, tus naj npawb, qhov yooj yim tsis (nominal paug tam sim no nyob rau hauv los yog inrush tam sim no limp, lub siab tshaj plaws kev khiav hauj lwm voltage Uc, voltage tiv thaiv theem), thiab lwm yam .
Low-voltage distribution system rub hauv av system muaj IT, TT, TN-S, TN-CS plaub daim ntawv, yog li SPD surge protector yuav tsum tau ua raws li qhov sib txawv hauv av ntawm cov khoom siv hluav taws xob tsawg thiab xaiv cov kab hluav taws xob sib txawv, rau Piv txwv li, thaum siv TN AC lub zog faib hluav taws xob, cov kab xa tawm uas ua los ntawm tag nrho lub thawv xa khoom hauv lub tsev yuav tsum tau siv TN-S grounding system.
Thaum cov kab hluav taws xob tsis tshua muaj hluav taws xob los ntawm kab hluav taws xob rau cov khoom siv hluav taws xob siv hluav taws xob los yog faus cable, tsis tuaj yeem ntsia SPD surge protector.Thiab thaum tag nrho lossis ib feem ntawm cov kab hluav taws xob qis rau cov kab hluav taws xob siv hluav taws xob, thiab thaj chaw thunderstorm hnub ntau tshaj 25d / a, lub sij hawm no yuav tsum tau nruab surge protectors los tiv thaiv overvoltage raws cov kab hluav taws xob vim yog kev taw qhia ntawm xob laim impulses, yog li ntawd. Lub overvoltage theem yog qis dua 2.5kV.
Cov cuab yeej tiv thaiv hluav taws xob feem ntau yog nruab rau hauv cov khoom siv hluav taws xob ntawm cov khoom xa tuaj, qhov chaw ntawm nws qhov kev teeb tsa tuaj yeem yog cov khoom siv hluav taws xob sab hauv, tab sis kuj yog nyob rau hauv cov ntaub ntawv ntawm lub teb chaws kis tau tus mob department pom zoo yuav tsum tau ntsia nyob rau hauv lub ze tshaj lub hwj chim kab ntawm lub tsev, uas. yog, ntsia nyob rau hauv lub overhead kab mus rau hauv lub cable kab.Yog tias cov khoom siv hluav taws xob tiv thaiv overvoltage muaj qhov xav tau ntau dua, lossis overvoltage yuav ua rau muaj qhov tshwm sim loj dua, xws li lub peev xwm ua rau tawg lossis txawm tias hluav taws, lossis cov khoom siv hluav taws xob tseem ceeb los tiv thaiv overvoltage muaj peev xwm tsawg, tab sis kuj yuav tsum tau nce qhov installation ntawm surge protectors.
Nyob rau hauv lub low-voltage tis system xaiv lub DC surge protector ntaus ntawv thaum lub ntsiab yam yuav tsum tau xav txog yog raws li nram no:
(1) Txiav txim siab qhov voltage tiv thaiv qib Up ntawm DC surge protector.Kev tiv thaiv hluav taws xob nce yog hais txog qhov siab tshaj plaws ntawm ob qho kawg ntawm qhov ntsuas hluav taws xob ntsuas thaum lub nominal tawm tam sim no ua, feem ntau muab faib ua 2.5, 2, 1.8, 1.5, 1.2, 1.0 rau qib, chav tsev rau kV.Txhawm rau tiv thaiv cov khoom siv hluav taws xob los ntawm kev puas tsuaj los ntawm overvoltage, peb thawj zaug xav tias qhov impulse withstand voltage ntawm cov khoom siv hluav taws xob tiv thaiv yuav tsum siab tshaj qhov voltage tiv thaiv qib nce ntawm surge protector.
(2) surge protector ntaus ntawv siv hom kev tiv thaiv tag nrho.Ntawd yog, rau L-PE, LN thiab LL kab yog ntsia nruab nrab ntawm lub surge protector txhawm rau ua kom muaj kev tiv thaiv ntawm txoj kab, uas tuaj yeem tiv thaiv hluav taws xob hluav taws xob tsis hais txog kab twg ntawm qhov overvoltage, yuav ua rau cov khoom siv hluav taws xob ua tau zoo. tiv thaiv.Nyob rau tib lub sijhawm, qhov qhib kev tiv thaiv tag nrho ntawm surge protector tuaj yeem tso tawm lub zog ib txhij kom tsis txhob pib lub surge protector ntawm qhov sib txawv tshwm sim los ntawm nws tus kheej kev puas tsuaj, yog li ncua lub neej ntawm surge protector.
(3) Xaiv qhov siab tshaj plaws kev khiav hauj lwm voltage Uc ntawm lub surge protector.Qhov siab tshaj plaws kev khiav hauj lwm voltage yog hais txog qhov siab tshaj plaws voltage uas tuaj yeem siv txuas ntxiv mus rau lub surge protector yam tsis muaj kev hloov pauv ntawm cov yam ntxwv ntawm tus surge protector thiab conductive surge protector.
(4) Xaiv qhov tsim nyog tshaj tawm tam sim no ntawm lub surge protector raws li ib puag ncig tus yam ntxwv ntawm qhov chaw.Qhov siab tshaj tawm tam sim no txhais tau hais tias tus tiv thaiv surge tsuas tuaj yeem dhau lub ncov ntawm qhov tam sim no ntawm 8/20μs ob zaug yam tsis muaj kev puas tsuaj rau lub surge protector.Qhov tseeb, DC surge protector muaj qhov tso tawm siab tshaj plaws tam sim no.
SPD Surge protector txawm hais tias kev tiv thaiv cov khoom siv hluav taws xob los ntawm kev puas tsuaj los ntawm overvoltage tau ua lub luag haujlwm loj heev, tab sis vim tias cov hluav taws xob tsim hluav taws xob muaj peev xwm qee zaum dhau ntawm qhov ntsuas hluav taws xob, yog li thaum lub surge protector ua haujlwm ntev hauv lub xeev overvoltage, tseem yuav raug puas tsuaj mus rau qhov sib txawv, cov no cuam tshuam loj heev los ntawm kev pabcuam lub neej ntawm tus tiv thaiv surge.Piv txwv li, thaum lub sij hawm overvoltage siab dhau lawm, lub surge protector yuav tawg los ntawm thiab ua rau ib tug luv luv Circuit Court, raws li qhia nyob rau hauv daim duab.
Yog tias cov cuab yeej tiv thaiv hluav taws xob tsis txuas nrog hauv cov kab hluav taws xob, cov kab hluav taws xob D1 yuav cia li tawm mus, vim qhov txhaum tam sim no lcc tseem muaj, tsuas yog tom qab hloov hluav taws xob tiv thaiv, cov kab luv luv Circuit Court breaker D1 yuav rov qab kaw, thiaj li hais tias lub kaw lus poob lub continuity ntawm lub hwj chim mov.Kev daws rau qhov teeb meem no yog txhawm rau txuas cov kab hluav taws xob hluav taws xob hauv series nrog rau qhov kawg ntawm qhov hluav taws xob tiv thaiv hluav taws xob, xaiv cov kab hluav taws xob hluav taws xob ntsuas tam sim no raws li qhov siab tshaj tawm tam sim no ntawm cov hluav taws xob hluav taws xob kom cov hluav taws xob hluav taws xob ua haujlwm zoo, thiab lub tripping nkhaus txais C hom, thiab nws lub peev xwm tawg yuav tsum muaj ntau dua qhov siab tshaj plaws luv luv tam sim no ntawm kev teeb tsa.Raws li qhia hauv lub rooj:
| IMAX (kA) | Curve Hom | Tam sim no (A) |
| 8-40 | C | 20 |
| 65 | C | 50 |
Cov pa hluav taws xob me me hluav taws xob tawg tam sim no tsis ntau dua 10kA, lub rooj tuaj yeem pom los ntawm kev xaiv me me Circuit Court breaker yog qhov nyuaj kom ua tau raws li lub peev xwm tawg yuav tsum siab tshaj qhov siab tshaj plaws luv luv tam sim no ntawm lub installation.Yog li ntawd, kev siv cov fuses los tiv thaiv lub surge protector yog qhov kev xaiv zoo!
Surge voltage yog dav.Raws li kev txheeb cais, surge overvoltage tshwm sim txhua 8 feeb nyob rau hauv lub teb chaws daim phiaj, thiab 20% -30% ntawm lub computer tsis ua hauj lwm yog tshwm sim los ntawm surge voltage, yog li surge tiv thaiv tsim yog heev tsim nyog.Surge tiv thaiv tsim yog kev tiv thaiv tsim, tib txoj kev los tiv thaiv peb cov khoom los ntawm overvoltage puas tsawg li sai tau.Kev tsim ntawm lub hnub ci DC surge protector ntaus ntawv yuav tsum ua tib zoo xav txog ntau yam cuam tshuam.Tsuas yog nyob rau hauv txoj kev no tuaj yeem ua tus tiv thaiv surge ua lub luag haujlwm tiv thaiv ntau tshaj plaws thiab tiv thaiv cov khoom siv hluav taws xob los ntawm kev puas tsuaj overvoltage.
Dongguan Slocable Photovoltaic Technology Co., Ltd.
Ntxiv: Guangda Manufacturing Hongmei Science thiab Technology Park, No. 9-2, Hongmei Section, Wangsha Road, Hongmei Town, Dongguan, Guangdong, Suav teb
TEL: 0769-22010201
