Arc extinguishing txoj cai ntawm high voltage nqus Circuit Court breaker
May 18, 2022
Arc quenching yog txheej txheem uas muaj nyob rau hauv tag nrho cov Circuit Court breakers. Thaum lub arc extinguishing ua haujlwm tsis zoo, nws yuav ua rau cov kab ntawm cov khoom siv hluav taws xob puas tsuaj, thiab ua rau muaj kev phom sij loj rau kev nyab xeeb ntawm lub neej thiab khoom. Peb feem ntau siv plaub txoj kev: mechanical arc extinguishing, slit arc extinguishing, magnetic blowing arc extinguishing and grid arc extinguishing.
1. Mechanical arc extinguishing
Los ntawm kev siv cov cuab yeej txwv kom nrawm nrawm rau arc kom ua tiav lub hom phiaj ntawm arc extinguishing, qhov kev tso tawm no feem ntau siv los hloov cov khoom siv.
2. Sib nqus tshuab arc extinguishing
Nyob rau hauv lub zog ntawm lub magnetic teb generated los ntawm lub magnetic blowing coil txuas nyob rau hauv series nrog kev sib cuag, lub arc yog sai elongated nyob rau hauv lub zog ntawm lub magnetic teb, thiab yog rub mus rau hauv lub arc extinguishing cover uas muaj cov khoom nruab nrab, thiab lub arc yog. txias thiab extinguished los ntawm kev sib cuag nrog cov khoom siv.
3. Daim phiaj arc extinguishing
Thaum cov kev sib cuag tau sib cais, lub arc yog propelled mus rau hauv ib txheej ntawm hlau daim phiaj nyob rau hauv qhov kev txiav txim ntawm hluav taws xob fais fab thiab muab faib ua ob peb ntu. Txhua daim phiaj hlau insulated los ntawm ib leeg ua ib qho electrode, yog li yuav muaj ntau ntawm cathode thiab anode voltage te. Rau AC arcs, thaum nyob ze ntawm lub cathode, lub arc xoom-crossing yuav muaj lub zog dielectric ntawm 150 volts rau 250 volts, ua rau lub arc tsis ruaj khov thiab tua. Vim hais tias daim phiaj arc extinguishing nyhuv yog zoo dua nyob rau hauv AC cov cuab yeej tshaj DC khoom, nws yog dav siv nyob rau hauv AC khoom.
4. Nqaim slit arc extinguishing
Nyob rau hauv qhov kev txiav txim ntawm lub magnetic teb tsim los ntawm arc, lub arc yog elongated mus rau hauv lub nqaim slits ntawm lub arc extinguishing cover. Ob peb slits faib cov arc rau hauv ob peb ntu thiab tom qab ntawd sib cuag nrog cov khoom siv hluav taws xob tua hluav taws, kom lub arc tua sai sai. Slit arc extinguishing feem ntau yog siv hauv AC contactors.
