Video: Vim li cas surge tiv thaiv ntaus ntawv SPD xav tau hauv kev teeb tsa?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
SPD yog tsim los txwv tsis pub dhau ib ntus overvoltages ntawm atmospheric keeb kwm thiab hloov tam sim no nthwv dej rau lub ntiaj teb, thiaj li txwv lub amplitude ntawm no overvoltage rau ib tug nqi uas tsis muaj teeb meem rau hluav taws xob. kev teeb tsa thiab hluav taws xob switchgear thiab controlgear.
Ntawm no, yog vim li cas surge tiv thaiv ntaus ntawv xav tau nyob rau hauv ib tug installation?
Surge tiv thaiv cov cuab yeej (SPDs) yog tsim los tiv thaiv hluav taws xob poob siab thiab muaj qhov hluav taws xob ntau dhau ua rau lub zog installation cov kab ke infrastructure. Yog tias qhov tshwm sim dhau-voltage tshwm sim, qhov SPD diverts qhov tshwm sim dhau tam sim no ntws mus rau lub ntiaj teb.
Qhov thib ob, koj muab cov cuab yeej tiv thaiv kev kub ntxhov nyob qhov twg? Nyob rau hauv ib qho hluav taws xob systems, surge tiv thaiv cov cuab yeej (SPDs) feem ntau yog ntsia nyob rau hauv kais-off configuration (nyob rau hauv parallel) ntawm cov nyob conductors thiab lub ntiaj teb. Lub hauv paus ntsiab lus ntawm kev khiav hauj lwm ntawm SPD tuaj yeem zoo ib yam li cov hluav taws xob hluav taws xob.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog lub surge tiv thaiv ntaus ntawv?
A surge tiv thaiv los yog surge suppressor yog khoom siv los yog ntaus ntawv tsim los tiv thaiv hluav taws xob khoom siv los ntawm voltage spikes. A surge tiv thaiv sim txwv qhov voltage nkag mus rau ib qho hluav taws xob ntaus ntawv los ntawm kev thaiv los yog luv luv rau hauv av tej yam tsis xav tau voltages siab tshaj qhov chaw nyab xeeb.
Puas yog kev tiv thaiv surge yuav tsum tau?
Surge tiv thaiv yog nyob rau hauv Tshooj 44 ntawm IET Cov Kev Cai Txuas Hluav Taws Xob (BS 7671). Thoob plaws hauv 18th Edition ntawm IET Cov Kev Cai Txuas Hluav Taws Xob, SPDs yuav tsum ua raws li BS EN 62305 yog tias muaj kev pheej hmoo ntawm kev ncaj qha xob laim ntaus mus rau ib tug qauv los yog mus rau lub overhead kab txuas nrog tus qauv.
Pom zoo:
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Puas yog tus tiv thaiv surge zoo ib yam li lub surge suppressor?
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Yog vim li cas surge tiv thaiv ntaus ntawv xav tau nyob rau hauv ib tug installation?
Nws tiv thaiv kev teeb tsa hluav taws xob tiv thaiv hluav taws xob ncaj qha. Nws tuaj yeem tso tawm rov qab-tam sim no los ntawm xob laim kis los ntawm lub ntiaj teb tus neeg xyuas pib mus rau lub network conductors