txhua hom ntawm cov khoom nyob rau hauv txoj kev loj hlob ntawm surge protectors Surge protectors yog cov khoom siv uas txwv tsis pub dhau ib ntus overvoltages. Cov khoom uas ua rau lub surge protector feem ntau muaj xws li qhov sib txawv ntawm cov roj tso tawm (xws li cov roj ntsha ceramic), cov khoom siv tiv thaiv hluav taws xob (xws li varistors), cov khoom siv hluav taws xob semiconductor tiv thaiv hluav taws xob (xws li hluav taws xob hluav taws xob TVS, ESD ntau tus pin cov khoom) , SCR, thiab lwm yam). Cia peb qhia cov hom ntawm cov khoom hauv keeb kwm ntawm kev lag luam tiv thaiv xob laim: 1. Txoj hlua ruaj khov Txoj hlua ruaj khov yog ib qho yooj yim arc quenching system. Nws muaj ntau cov hlau sab hauv electrodes them nrog silicone roj hmab. Muaj qhov me me ntawm cov electrodes sab hauv, thiab lub qhov tuaj yeem sib txuas lus nrog huab cua sab nraud. Cov qhov me me no tsim cov kab ntawm micro Chamber. 2. Graphite gap hlua Cov ntawv graphite yog ua los ntawm graphite nrog cov ntsiab lus carbon ntawm 99.9%. Daim ntawv graphite muaj qhov zoo tshwj xeeb uas tsis tuaj yeem hloov tau los ntawm lwm cov ntaub ntawv hlau nyob rau hauv cov nqe lus ntawm hluav taws xob conductivity thiab thermal conductivity. Qhov paug tawm yog insulated los ntawm ib leeg. Cov tshuab lamination no tsis yog tsuas yog daws qhov teeb meem ntawm freewheeling, tab sis kuj tso tawm txheej los ntawm txheej, thiab cov khoom nws tus kheej muaj peev xwm tam sim no muaj zog heev. Qhov zoo: qhov kev ntsuas loj tam sim no 50KA (tus nqi ntsuas qhov tseeb) me me tam sim no, tsis muaj kev ywj pheej tam sim no, tsis muaj arc paug, zoo thermal stability Disadvantages: siab residual voltage, qeeb teb lub sij hawm. Tau kawg, ib qho kev pab cuam cuam tshuam tuaj yeem ntxiv los txhim kho nws. Raws li cov qauv ntawm cov hluav taws xob ntes hloov pauv, txoj kab uas hla ntawm daim ntawv graphite thiab cov duab ntawm cov graphite muaj kev hloov pauv loj. 3. Silicon carbide tiv thaiv xob laim Silicon carbide yog ib qho kev hloov kho cov khoom lag luam uas ua raws li Soviet Union thaum ntxov ntawm kev tsim cov neeg koom pheej ntawm Tuam Tshoj. Nws cov qauv yog nias thiab kaw qhov sib txawv thiab ob peb SiC valve daim hlau hauv lub tes tsho porcelain ntes. Kev tiv thaiv muaj nuj nqi yog siv cov yam ntxwv tsis zoo ntawm SiC valve phaj. Kev tiv thaiv xob laim me me heev, thiab cov hluav taws xob loj loj tuaj yeem raug tso tawm kom txwv qhov seem seem. Tom qab qhov hluav taws xob hluav taws xob dhau mus, qhov kev tiv thaiv yuav cia li nce, txwv qhov kev ywj pheej tam sim no mus rau hauv kaum tawm amperes, kom qhov sib txawv tuaj yeem raug tua thiab cuam tshuam. Silicon carbide ntes yog tam sim no lub ntsiab tiv thaiv hluav taws xob hluav taws xob nrog keeb kwm ntev ntawm kev siv hauv kuv lub teb chaws. muaj nuj nqi, kev tiv thaiv xob laim ua tsis tiav; tsis muaj kev tiv thaiv hluav taws xob txuas ntxiv; kev ruaj ntseg ntawm cov yam ntxwv ntawm kev khiav hauj lwm yog tsis zoo thiab tej zaum yuav raug kev txom nyem los ntawm ib ntus overvoltage txaus ntshai; cov kev khiav hauj lwm load yog hnyav thiab kev pab cuam lub neej yog luv luv, thiab lwm yam. Cov no tau nthuav tawm lub peev xwm ntawm silicon carbide ntes siv zais kev phom sij thiab cov khoom siv technology rov qab. 4. Pill-type surge protector Cheebtsam Nws cov qauv yog nias thiab kaw qhov sib txawv thiab cov khoom tiv thaiv (tshuaj txhuas dioxide lossis emery) hauv lub tes tsho porcelain. Thaum qhov voltage yog li qub, qhov sib txawv yog cais los ntawm kev khiav hauj lwm voltage. Thaum xob laim overvoltage rhuav tshem qhov sib txawv, cov hlau lead dioxide yog cov khoom siv hluav taws xob tsawg, uas yog qhov tsim nyog rau cov xau ntawm cov hluav taws xob ntau rau hauv av kom txo cov overvoltage. Cov hlau lead monoxide muaj nyob, thiab lub hwj chim zaus freewheeling tam sim no raug txo, kom qhov sib txawv yog extinguished thiab tam sim no cuam tshuam. Cov yam ntxwv tiv thaiv ntawm cov tshuaj tua kab mob tsis zoo, thiab raug hloov los ntawm silicon carbide ntes hauv kuv lub tebchaws.

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Post lub sij hawm: Jul-13-2022