amakuru

Kubyimpamvu yo gutwika varistor

Mumuzunguruko, uruhare rwa varistor ni: icya mbere, kurinda birenze urugero; icya kabiri, ibisabwa byo kurwanya inkuba; icya gatatu, ibisabwa byo gupima umutekano. Noneho kuki varistor yaka mumuzunguruko? Impamvu ni iyihe?

Varistors muri rusange igira uruhare mukurinda voltage mumuzunguruko, kandi irashobora gukoreshwa hamwe na fuse kugirango inkuba ikorwe cyangwa ubundi buryo bwo kurinda umuriro mwinshi. Ubusanzwe ikoreshwa mukurinda inkuba. Iyo hejuru ya volvoltage ibaye, varistor izacika kandi hazabaho uruziga rugufi, kuburyo voltage kumpande zombi za varistor izafatirwa kumwanya wo hasi. Muri icyo gihe, umuvuduko ukabije uterwa n'umuzunguruko mugufi uzatwika fuse y'imbere cyangwa uhatira guhinduranya ikirere mu rugendo, bityo uhagarike amashanyarazi ku gahato. Muri rusange, ntabwo bigira ingaruka nke mubindi bikoresho bya elegitoronike nyuma yo kwangirika, reba ibice byumuzunguruko bihujwe nayo. Mugihe cyangiritse, fuse izaturika.

Iyo voltage iri munsi ya voltage yagenwe ya varistor, kurwanya varistor ntigira iherezo kandi nta ngaruka bigira mukuzunguruka. Iyo voltage mumuzunguruko irenze voltage ya varistor, kurwanya varistor bizagabanuka vuba, bizagira uruhare mukugabanya shunt na voltage, kandi fuse mumuzingo umwe izavuzwa kugirango igire uruhare mukurinda. Niba nta fuse ihari, varistor izaturika bitaziguye, yangiritse kandi inanirwe, itakaza ingaruka zokwirinda, kandi itume uruziga rukurikira rwaka.
Impamvu eshatu zavuzwe haruguru nimpamvu zitera varistor gutwika mumuzunguruko. Byakagombye kwitabwaho cyane kubikorwa mugihe kizaza kugirango twirinde kwangirika.