Thaum lub fuse nyob rau hauv lub Circuit Court yog tshuab, thaum lub voltage thiab tam sim no ncav cuag ib tug tej yam nqi, lub fuse tsuas yog melted thiab disconnected, thiab ib tug arc yuav raug generated ntawm lub fuses uas nyuam qhuav tau sib cais, uas yog ib tug arc. Nws yog vim hais tias lub teb hluav taws xob muaj zog heev, cov pa roj yog ionized, thiab tam sim no dhau los ntawm qhov nruab nrab uas feem ntau yog insulated. Rau cov khoom siv hluav taws xob nrog kev sib cuag, txij li lub arc feem ntau yog tsim thaum cov neeg sib txuas tsis sib txuas, qhov kub thiab txias yuav hlawv cov kev sib cuag thiab rwb thaiv tsev, thiab txawm tias ua rau ib theem-rau-theem luv luv Circuit Court thiab hluav taws xob tawg hauv qhov hnyav, ua rau hluav taws kub. thiab ua rau muaj kev phom sij rau cov neeg ua haujlwm thiab cov khoom siv. Kev nyab xeeb.
1. Arc extinguishing nrog nruab nrab
Lub deionization ntawm qhov sib txawv arc feem ntau nyob ntawm cov yam ntxwv ntawm lub arc extinguishing nruab nrab nyob ib ncig ntawm lub arc. Lub tshuab nqus tsev (siab hauv qab 0.013Pa) yog qhov nruab nrab ntawm kev tua hluav taws zoo heev, vim tias muaj ob peb qhov nruab nrab hauv lub tshuab nqus tsev, nws tsis yooj yim rau kev sib tsoo thiab sib cais, thiab lub tshuab nqus tsev yog qhov zoo rau kev nthuav dav thiab deionization, thiab nws cov arc Lub peev xwm tua hluav taws yog kwv yees li 15 npaug ntau dua li huab cua. Feem ntau, arc-extinguishing khoom ntawm high-voltage tam sim no-limiting fuses yog quartz xuab zeb, vim hais tias quartz xuab zeb muaj thermal conductivity thiab rwb thaiv tsev kev ua tau zoo, thiab muaj ib tug loj cheeb tsam ntawm lub arc, uas yog yooj yim rau absorbing arc zog. Cov xuab zeb quartz tau ntim rau hauv lub raj yaj ua ib qho loj ntawm cov khoom me me nruab nrab slits thiab slits, uas muaj peev xwm faib, txias thiab nto adsorb (them hais) mus rau arc. Nyob rau tib lub sijhawm, qhov nce siab ntawm cov pa roj hauv qhov sib txawv kuj tseem muaj zog deionization ntawm lub arc. , yog li lub arc yog sai sai extinguished.
2. Siv cov khoom siv hlau tshwj xeeb ua arc extinguishing contacts
Siv cov khoom kub-resistant hlau nrog siab melting point, thermal conductivity thiab loj tshav kub muaj peev xwm raws li cov ntaub ntawv tiv tauj yuav txo tau cov thermal emission thiab hlau vapor nyob rau hauv lub arc, thiab tau txais cov nyhuv ntawm inhibiting dissociation; Nyob rau tib lub sijhawm, cov khoom siv sib tiv tauj kuj yuav tsum muaj kev tiv thaiv arc siab. , Anti-welding peev xwm. Cov ntaub ntawv sib txuas feem ntau suav nrog tooj liab-tungsten alloy, nyiaj-tungsten alloy, thiab lwm yam.
3. Faib qhov ntev arcs rau hauv luv arcs
Thaum lub arc hla dhau ib kab ntawm cov kab hlau txuas rau nws, qhov ntev arc muab faib ua ob peb luv arcs; thiab qhov hluav taws xob poob ntawm qhov luv arc feem ntau ntog hauv thaj tsam cathode thiab anode. Yog tias tus lej ntawm daim phiaj loj txaus, txhua ntu tuaj yeem tswj tau Thaum qhov sib npaug ntawm qhov tsawg kawg nkaus qhov hluav taws xob xav tau rau arc combustion ntau dua li qhov siv hluav taws xob, lub arc yuav tua nws tus kheej. Tsis tas li ntawd, tom qab AC tam sim no hla xoom, vim qhov tshwm sim ze-cathode, lub zog dielectric ntawm txhua qhov sib txawv arc dheev nce mus rau 150-250V. Siv ntau qhov sib txawv arc hauv series tuaj yeem tau txais lub zog dielectric ntau dua, yog li ntawd lub arc yuav tsis tua tom qab xoom hla. kav.