xov xwm

Hais txog yog vim li cas rau qhov burnout ntawm varistor

Nyob rau hauv Circuit Court, lub luag hauj lwm ntawm lub varistor yog: thawj, overvoltage tiv thaiv; thib ob, xob laim tiv taus; thib peb, kev kuaj xyuas kev nyab xeeb. Tom qab ntawd vim li cas varistor hlawv tawm hauv Circuit Court? Yog vim li cas?

Varistors feem ntau ua lub luag haujlwm hauv kev tiv thaiv hluav taws xob hauv circuits, thiab tuaj yeem siv nrog fuses rau xob laim tawm tsam lossis lwm yam kev tiv thaiv overvoltage. Nws feem ntau yog siv rau kev tiv thaiv xob laim. Thaum ib qho overvoltage tshwm sim, lub varistor yuav tawg thiab luv luv Circuit Court yuav tshwm sim, yog li hais tias qhov voltage ntawm ob kawg ntawm varistor yuav tsum clamped ntawm ib tug qis txoj hauj lwm. Nyob rau tib lub sij hawm, lub overcurrent tshwm sim los ntawm lub luv luv Circuit Court yuav hlawv lub pem hauv ntej fuse los yog quab yuam lub cua hloov mus txawv tebchaws, yog li quab yuam txiav tawm lub hwj chim mov. Feem ntau hais lus, nws muaj kev cuam tshuam me ntsis rau lwm cov khoom siv hluav taws xob tom qab kev puas tsuaj, tsuas yog xyuas cov khoom siv hluav taws xob txuas nrog nws. Nyob rau hauv cov ntaub ntawv ntawm puncture puas, lub fuse yuav tshuab.

Thaum qhov hluav taws xob tsawg dua li qhov ntsuas hluav taws xob ntawm varistor, qhov kev tiv thaiv ntawm varistor yog qhov kawg thiab tsis muaj kev cuam tshuam hauv Circuit Court. Thaum qhov hluav taws xob hauv Circuit Court dhau qhov hluav taws xob varistor, qhov kev tiv thaiv ntawm varistor yuav poob sai, uas yuav ua lub luag haujlwm ntawm shunt thiab voltage limiting, thiab lub fuse nyob rau hauv tib lub Circuit Court yuav raug tshuab los ua lub luag haujlwm tiv thaiv. Yog tias tsis muaj fuse hauv Circuit Court, lub varistor yuav tawg ncaj qha, puas thiab tsis ua haujlwm, poob nws cov txiaj ntsig tiv thaiv, thiab ua rau cov hluav taws xob txuas ntxiv mus.
Cov laj thawj saum toj no yog cov laj thawj uas ua rau varistor hlawv tawm hauv Circuit Court. Kev saib xyuas tshwj xeeb yuav tsum tau them rau kev ua haujlwm yav tom ntej kom tsis txhob muaj kev puas tsuaj rau lub capacitor.