Lub hom phiaj tseem ceeb ntawm kev txhim kho tus tiv thaiv kev tiv thaiv nyob rau hauv pem hauv ntej ntawm lub surge protector yog los txhim kho qhov kev cia siab ntawm lub system, ncua lub neej kev pab cuam ntawm cov cuab yeej thiab optimize kev tiv thaiv zoo. Cov ntsiab lus tseem ceeb ntawm txoj hauv kev no tuaj yeem txheeb xyuas raws li hauv qab no:
I. Surge saver Limitationss
Peev xwm thiab Lifespan Constraints
Surge protectors tiv thaiv cov cuab yeej los ntawm absorbing los yog dissipating surge zog. Txawm li cas los xij, lawv cov khoom siv sab hauv (xws li varistors thiab cov pa tawm roj) muaj peev xwm txwv. Feem ntau raug rau cov dej ntws loj tuaj yeem ua rau kev ua haujlwm tsis zoo lossis ua tsis tiav.
Cov khoom tiv thaiv thaub qab (xws li fuses thiab Circuit Court breakers) tuaj yeem txwv qhov tam sim no dhau los ntawm SPD thiab tiv thaiv kev puas tsuaj rau SPD vim yog overload, yog li ncua SPD lub neej.
Qhov sib txawv hauv kev teb ceev
SPD lub sij hawm teb feem ntau yog nyob rau hauv nanosecond range, thaum lub sij hawm tiv thaiv backup (xws li fuses) nyob rau hauv millisecond range. Thaum SPD tuaj yeem cuam tshuam sai sai, cov tiv thaiv thaub qab tuaj yeem cuam tshuam cov kev nce ntxiv txuas ntxiv thiab muab kev tiv thaiv dual.
Kev Cai Txiav Txim Siab
Nyob rau hauv qhov kev tshwm sim ntawm SPD tsis ua hauj lwm (xws li ib tug luv luv Circuit Court), lub backup tiv thaiv tau sai sai txiav lub Circuit Court, tiv thaiv qhov kev txhaum ntawm kis mus rau hauv lub system, thiab xyuas kom meej tias lwm yam khoom siv ua hauj lwm ib txwm.
ii. Lub luag haujlwm tseem ceeb ntawm Backup Protectors
Kev tiv thaiv overcurrent
Cov khoom tiv thaiv thaub qab, xws li fuses, txiav tawm ntau tshaj qhov ntsuas tam sim no los ntawm fuse blowers los tiv thaiv SPD los ntawm kev kub hnyiab vim ntev - lub sij hawm overloading. Piv txwv li, thaum xob laim ntaus nrog lub zog ntau dua li SPD tso cai, lub fuse yuav tawg ua ntej los tiv thaiv SPD thiab cov khoom siv tom ntej. Kev tiv thaiv luv luv
Yog tias SPD cov khoom siv sab hauv luv luv -circuit, tus tiv thaiv thaub qab tuaj yeem txiav tawm tam sim ntawd, tiv thaiv luv luv - Circuit Court tam sim no los ntawm qhov ua rau hluav taws kub lossis khoom puas tsuaj. Qhov kev tiv thaiv no tsis tuaj yeem ua tiav los ntawm SPD ntawm nws tus kheej.
Hierarchical kev tiv thaiv optimization
Hauv kev tiv thaiv ntau txheej, cov khoom tiv thaiv thaub qab ua haujlwm nrog SPD kom ua tiav qhov kev txo qis hauv lub zog. Piv txwv li:
Pem hauv ntej kawg: backup tiv thaiv (xws li Circuit Court breaker) txiav tawm loj tam sim no luv luv -circuit txhaum;
Nruab nrab - range: SPD inhibits xob laim surges
Terminal: Cov cuab yeej tiv thaiv zoo (xws li cov ntaub ntawv cuam tshuam).
Cov txheej txheem tsim no tuaj yeem txo SPD lub nra thiab txhim kho kev tiv thaiv tag nrho.
III. Technical Basic Standard Requirements for Configuration of Standby Protectors
Cov qauv thoob ntiaj teb (xws li IEC 60364-4-443) thiab cov kev cai hauv tsev (piv txwv li GB 50057) qhia tias SPD yuav tsum siv nrog rau cov khoom siv tiv thaiv overcurrent kom ntseeg tau tias muaj kev nyab xeeb.
Cov ntsiab lus ntawm lub zog sib haum xeeb
Qhov ntsuas tam sim no ntawm tus tiv thaiv thaub qab yuav tsum ua raws li SPD cov kev txwv kom tsis txhob ua yuam kev nyob rau hauv ib txwm muaj surges thiab ntseeg tau txiav lub voj voog hauv qhov xwm txheej tsis ua haujlwm. Piv txwv li, SPD qhov "qhov siab tshaj plaws kev khiav hauj lwm voltage" (Uc) yuav tsum siab tshaj qhov system voltage, thiab tus tiv thaiv thaub qab yuav tsum muaj peev xwm tawg ntau dua li SPD qhov luv luv - Circuit Court tam sim no.
Kev kho yooj yim
Standby tiv thaiv, xws li lub fuse hloov tau, yog ib qho yooj yim los tswj ceev ceev, thiab SPD malfunctions feem ntau xav tau ib qho kev hloov pauv. Lub sijhawm poob ntawm lub kaw lus tuaj yeem raug txo los ntawm kev cais qhov tsis ua haujlwm nrog tus tiv thaiv thaub qab.
IV. INTRODUCTION Cov Tswv Yim Thov Kev Pabcuam
Fais fab system
Hauv cov chaw nres tsheb lossis cov chaw faib khoom, SPD muaj cov kab hluav taws xob nyob rau pem hauv ntej los tiv thaiv luv luv -tam sim no kev puas tsuaj los ntawm xob laim hluav taws xob thiab ua kom yooj yim rau kev khiav lag luam.
Kev sib txuas lus Network
Ntawm cov chaw nres tsheb hauv paus lossis cov chaw khaws ntaub ntawv, SPD tau ua ke nrog cov fuses los xyuas kom meej tias cov khoom siv sib txuas lus tsis cuam tshuam rau lub sijhawm xob laim lossis hluav taws xob hloov pauv thiab qhov yuam kev tuaj yeem txheeb xyuas sai.
Kev tswj hwm kev lag luam
Hauv cov kab ntau lawm, cov khoom tiv thaiv thaub qab tuaj yeem tiv thaiv cov kab ntau lawm vim yog SPD tsis ua haujlwm thiab xyuas kom muaj kev tsim khoom txuas ntxiv.