Grid Voltage Surge thiab Transient Overvoltage Induced Heater Short Circuit Mechanism
Transient voltage surge thiab daim phiaj overvoltage yog ib qho tseem ceeb ntawm cov hluav taws xob sab nraud uas ua rau lub caij luv luv ntawm cov hluav taws xob cua sov. Ib tug loj tus naj npawb ntawm cov cua sov tube cia li burnout faults yam tsis muaj kev ua hauj lwm txawv txav tsis yog tshwm sim los ntawm cov khoom laus los yog qhuav burning, tab sis los ntawm instantaneous daim phiaj voltage cuam tshuam. Cov kab hluav taws xob muaj hluav taws xob feem ntau tsim cov hluav taws xob tam sim ntawd vim qhov pib nquag ntawm cov khoom siv hluav taws xob siab -, kev hloov pauv, hluav taws xob induction thiab tsis sib npaug peb -theem load. Lub ultra- qhov hluav taws xob siab tam sim no tawg los ntawm kev txwv kev thaiv hluav taws xob ntawm cov cua sov, uas ua rau lub rwb thaiv tsev tam sim ntawd tawg thiab luv luv Circuit Court tsis ua haujlwm.
Hluav taws xob cua sov raj yog tsim los rau kev ruaj ntseg ua hauj lwm voltage, thiab lawv cov txheej txheem rwb thaiv tsev thiab cua sov hlau bearing muaj peev xwm nruj voltage. Raws li tus qauv ntsuas hluav taws xob, hluav taws xob hauv hluav taws xob hauv lub raj cua sov yog qhov ruaj khov, thiab cov txheej txheem magnesium oxide rwb thaiv tsev tuaj yeem cais tawm tam sim no kom ua haujlwm zoo. Thaum lub sij hawm overvoltage tshwm sim, qhov tam sim no voltage deb tshaj cov cuab yeej tsim txwv, tsim kom muaj zog tawg hluav taws xob hauv lub raj. Cov txheej rwb thaiv tsev tsis tuaj yeem dais qhov cuam tshuam tam sim ntawm hluav taws xob, ua rau dielectric tawg thiab tsim cov kab hluav taws xob tsis hloov pauv.
Voltage surge short circuit muaj cov yam ntxwv tam sim ntawd thiab kev puas tsuaj. Sib txawv ntawm kev laus zuj zus luv luv Circuit Court, overvoltage breakdown tshwm sim nyob rau hauv milliseconds yam tsis muaj kev ceeb toom ntxov. Lub raj cua sov tuaj yeem ua haujlwm ib txwm ua ntej qhov nce siab, thiab cov qauv sab hauv tsis zoo. Thaum cuam tshuam los ntawm overvoltage, txheej rwb thaiv tsev yog tam sim ntawd tawg thiab carbonized, lub cua sov hlau yog luv luv -circuited thiab hlawv, nrog instantaneous tripping, haus luam yeeb thiab lub zos raj lub cev liab. Qhov kev txhaum no yog ib qho yooj yim heev uas yuav tsum tau misjudged raws li cov khoom zoo teeb meem vim tshwm sim tam sim ntawd.
Cov kab hluav taws xob tsis tu ncua ua rau muaj kev cuam tshuam ntawm rwb thaiv tsev thiab ua rau muaj kev pheej hmoo luv luv. Ntev -lub sij hawm qis- amplitude voltage fluctuation yuav tsis ua rau tam sim ntawd tawg, tab sis yuav ua rau rov qab hluav taws xob teb cuam tshuam rau lub rwb thaiv tsev txheej, ua rau rwb thaiv tsev qaug zog thiab kev ua haujlwm attenuation. Lub rwb thaiv tsev kuj tseem txo qis, thiab cov ntsiab lus tawg me me tshwm hauv. Thaum ntsib qhov cuam tshuam tom qab voltage surge, lub qaug zog rwb thaiv tsev txheej lov tag nrho los ua luv luv Circuit Court tsis ua hauj lwm.
Peb -theem tsis sib npaug voltage yog ib qho kev phom sij zais hauv cov tshuab cua sov. Hauv peb -theem hluav taws xob cua sov cov cuab yeej, cov khoom tsis sib npaug ua rau muaj qhov hluav taws xob ntau dhau ntawm ib qho -theem Circuit Court, ua rau lub sijhawm ntev - overvoltage ua haujlwm ntawm cov cua kub ib nrab. Tsis tu ncua overvoltage ua rau qeeb carbonization ntawm rwb thaiv tsev, nws thiaj li ua rau ib qho -theem luv Circuit Court thiab cov khoom burnout, thiab txawm ua rau kev puas tsuaj ntawm tag nrho cov hluav taws xob faib system.
Kev tiv thaiv hluav taws xob muaj txiaj ntsig zoo tuaj yeem zam tsis dhau qhov cuam tshuam luv luv. Nruab tshwj xeeb surge tiv thaiv pab kiag li lawm thiab voltage stabilizers rau industrial cua sov khoom kom nqus instantaneous overvoltage cuam tshuam. Tsis tu ncua kuaj peb -theem voltage tshuav nyiaj li cas los kho cov khoom xa tawm thiab zam ib zaug -theem overvoltage. Ua kom siab -rhiab heev Circuit Court breakers thiab cov tiv thaiv hluav taws xob kom txiav tawm hluav taws xob sai sai thaum overvoltage luv Circuit Court. Kev tiv thaiv hluav taws xob tau zoo tuaj yeem tiv thaiv kab sib txawv txawv txav thiab tshem tawm tam sim ntawd luv luv Circuit Court tsis ua hauj lwm ntawm cov cua sov raj los ntawm qhov voltage fluctuation.
