Liper, tus thawj coj ntawm kev daws teeb meem teeb pom kev zoo, niaj hnub no hais txog qhov xav tau tseem ceeb rau kev tiv thaiv kev tiv thaiv hauv ob qho tib si hauv tsev thiab kev lag luam teeb pom kev zoo. Lub zog surges, feem ntau nkag siab yuam kev, ua rau muaj kev hem thawj rau lub neej ntev thiab kev ua haujlwm ntawm cov teeb pom kev zoo niaj hnub.
Lub zog Surge yog dab tsi?
Lub hwj chim surge yog ib qho tam sim ntawd, luv luv nyob rau hauv hluav taws xob voltage deb tshaj tus qauv ntws (xws li, 100V / 240V AC). Cov spikes, kav ntev millionths ntawm ib thib ob, tuaj yeem tshwm sim los ntawm:
1.xob laim: Kev sib tsoo ncaj qha lossis nyob ze qhov kev tawm tsam uas ua rau muaj kev kub ntxhov rau hauv cov kab hluav taws xob.
2.Grid Operations: Kev siv hluav taws xob hloov pauv, kev ua kom lub txhab nyiaj capacitor, lossis kev tshem tawm qhov txhaum.
3.Cov peev txheej sab hauv: Cov motors loj (elevators, tshuab hluav taws xob) cycling on/off nyob rau hauv ib lub tsev.
Txoj Kev Phem Phem Rau Koj Lub Teeb
Surges ua rau muaj kev puas tsuaj loj lossis kev puas tsuaj loj:
1.Instant Failure: Sudden burnout ntawm LED tsav tsheb, controllers, los yog cov khoom siv fais fab.
2.Kev ua haujlwm tsis zoo: Kev puas tsuaj maj mam ua kom luv luv, ua rau flickering, xim hloov, lossis txo qhov ci.
3.Tswj kev puas tsuaj: Crippling ntse teeb pom kev zoo tes hauj lwm, sensors, thiab dimming systems.
4.Kev Nyab Xeeb Kev Nyab Xeeb: Muaj peev xwm hluav taws kub nyhiab los ntawm cov khoom puas.
5.Nqis Downtime & Hloov: Tsis npaj kho thiab hloov kho cov nqi.
Tom qab nyeem cov ntaub ntawv no, tej zaum koj xav tsis thoob yuav ua li cas zam cov teeb meem no ...Thiab qhov tseeb, Lub Chaw Haujlwm Saib Xyuas Hluav Taws Xob Thoob Ntiaj Teb (IEC) tau teeb tsa cov qauv qhia meej rau kev tiv thaiv kev tiv thaiv hauv cov teeb pom kev zoo los ntawmIEC 60598-1: Covthiab cov qauv kev ua haujlwm tshwj xeeb xws liIEC 61547 (TSI). Cov ntsiab lus tseem ceeb suav nrog:
1.Teeb hauv tsev: Feem ntau yuav tsum tau tiv taus Theem 2 surges (ntau ntau hauv cov tsev):
Kab-rau-Line: 1 kV
Kab-rau-Earth (hauv av): 2 kV
2.Sab nraum zoov teeb: Ua rau muaj kev pheej hmoo siab dua ( xob laim, ntev cable khiav), yuav tsum muaj kev tiv thaiv qib 3 lossis 4:
Kab-rau-Line: 2 kV lossis 4 kV
· Kab-rau-Ntiaj Teb (hauv av): 4 kV lossis 6 kV - Qhov tseem ceeb rau kev sib tw ntawm tus ncej, lub tsev perimeters, lossis toj roob hauv pes.
Liper ua dab tsi kom paub tseeb tias lub teeb tuaj yeem muaj kev nyab xeeb thiab muaj sia nyob ntev?
Liper mob siab txog kev nyab xeeb txhua lub sijhawm, yog li peb cov engineers tsom mus rau kev ntxiv cov khoom siv tiv thaiv kev kub ntxhov thiab peb cov kws tshaj lij yuav sim peb lub teeb hauv EMC chav kuaj kom ntseeg tau tias peb lub teeb muaj cov txheej txheem siab dua.
1. Ntxiv ib cosurge tiv thaiv cov cuab yeejthaum ua lub rooj tsavxwm PCB.
·Varistors: clamp voltage los ntawm diverting surge tam sim no.
·Fuse resistor: tshuab sai sai kom tsis txhob muaj teeb meem kev nyab xeeb ntau dua (xws li hluav taws kub).
·Transient Voltage Suppression (TVS): Cov lus teb ceev heev, tiv thaiv ICs rhiab hauv cov tsav tsheb / tswj. Tsawg zog tuav.
·Hom hom inductors: ua kom tam sim no tsis tuaj yeem nce tam sim ntawd tab sis nce qeeb thiab nqus lub zog tam sim ntawd.
(ua ntej siv hom hom inductor)
(tom qab siv hom hom inductor)
2.Test lub teeb nyob rau hauv peb lub chaw kuaj mob
·Surge generator: tus qauv ntawm kev xeem yog siab dua IEC tus qauv. Rau txoj kev teeb pom kev zoo, peb tuaj yeem ncav cuag 10kV tom qab ntxiv xob laim ntes.
·EMC chav kuaj: kuaj lub peev xwm tiv thaiv kev cuam tshuam thiab kuaj seb peb lub teeb puas yuav cuam tshuam rau lwm yam khoom siv lossis tsis. Qhov kev xeem no yog raws li tus qauv CB.
Tom qab cov kev ua no, koj tuaj yeem ntseeg tau siv peb lub teeb rau qhov project! Liper, ib hom tshuaj uas koj tuaj yeem ntseeg mus ib txhis!
Post lub sij hawm: Jun-17-2025
