Varistor: kushanda musimboti, maitiro, basa. Sei munhu varistor?

Akadana varistor semiconductor resistors, izvo vanokwanisa kuderedza nemishonga 10 nguva pakutanga ukoshi nokuwedzera kuti voltage. Somuenzaniso, kana munhu resistor ane nemishonga ine 1000 megohms, nokushandiswa chinhu ichi ndiyo 1,000 ohms. Nokudaro, kurwisa zvinoderedza kana voltage anowedzera.

Kazhinji, vari oxide simbi kana zingi oxide. Kana kutarira magetsi-voltage zvechadenga varistor, zvinogona kucherechedzwa kuti ane asiri Linear zvakafanana, ichibata chimiro, kureva rinogona kushanda kwete chete pane kugara asi shanduka voltage. Yakadaro chinhu wanamatira kufanana mutoro. Sei munhu varistor? Kana voltage ari mains ano inopfuura kwete kuburikidza midziyo, dzinova varistor. mudziyo kwakadaro anokwanisa rokuparadzira simba sezvo kupisa. Its chikuru zvinhu - munhu shandisazve uye kupora nguva, ndiro kurwisa ane kwokutanga mufananidzo panguva simba kurasikirwa.

Chii musimboti wenyika varistor? The chinhu hakuna kumbosiyana zvake resistor, ndiko kuti, panguva dzose nokushanda zvemagetsi zvinoita ane ohmic nemishonga. Saka, funga chii ane varistor musimboti.

The inoratidza kurwisa zvakakwirira zvikuru uye vanogona kusvika 100,000 ohms. Kana voltage dzikava pamusoro, anogona kuderedzwa panongovira zvodiwa iri pamwero kudzivirirwa. Kupikiswa chinowa 100,000 ohms kusvika 100. Kana mutengo ikasawira yakaderera muganhu, kana akaenzana razero, pangava redunhu pfupi. In fiyuzi ichi, riri imwe remudunhu nemagetsi ari varistor pamberi rotsva. Zvadaro, magetsi redunhu yapera uye voltage iri adzima chose.

Sezvambotaurwa, pasina ari varistor voltage zvachose anogona kupora uye basa iri chete nzira. Nokuti huchishanda uchida kutsiva munhu nomukondombera fiyuzi. Uyezve, wemagetsi achaita ishande zvakanaka. The varistor zvakabatana akaererana simba rive. Funga ane varistor nheyo oparesheni, muenzaniso zvake pachake kombiyuta. Sezvo ane zviteshi zviviri, kubatana rinoitwa munyika zvakafanana uye razero danho.

Chii chinhu?

Urongwa hwakadaro, sezvo varistor, ine mapikicha munyaya ino, sokunge zvake resistor, kureva, ndiye rectangular mu chimiro. Asi zvakadaro ine musiyano diki. Mukati maro anofambisa diagonal, kuguma chiri curved.

Sezvairatidzwa imwe varistor?

Nhasi tinogona kusangana mazita akasiyana mano izvi. Mumwe mugadziri chakanzi kuisa vayo. Chichatara akasiyana, nokuti michina unhu varistors Munokudzwa nepedyo. Mienzaniso inosanganisira zvinhu zvakadai zvinobvumidzwa voltage kana ano chechetere achida.

Pari, mumwe mugadziri anoisa mucherechedzo marudzi aya mano. Izvi imhaka yokuti kugadzirwa mano vane nokurondedzerwa zvakasiyana. Somuenzaniso, kufadza bvumidzwa voltage kana kuitika zvaidikanwa kushanda revarombo. The kupfuura mukurumbira chokuguma - Cnr, iyo wanamatira kuti zita sezvo 07D390K. Zvinorevei izvi? Saka, kubva pakunzi Cnr pachayo inoratidza mhando mudziyo. Panyaya iyi, sefungu suppressor ane simbi oxide.

Uyezve, 07 - mumwe mudziyo chakakura dhayamita kuti yakaenzana 7 mm. D - denderedzwa zano, uye 390 - kufadza voltage ukoshi.

The chikuru parameters pamusoro varistors

parameters Idzi dzinosanganisira:

• voltage wokuyera;
• nhamba kunonyanyisa pamusoro AC uye DC;
• Nhamba yepamusoro simba Absorção de Água;
• zvinogoneka kukanganisa;
• basa chinhu.

Diagnostics

Kuti mumuedze ichi wemagetsi, kushandisa michina, anonzi tester. Saka, muedzo vachada kuva varistor, nheyo chiri kuchinja kurwisa parameters uye bvunzo mudziyo. Asati rayo kutanga, unofanira batidza kweguyo ufambe munzira nemishonga muoti. Chete ipapo muchina uchasangana zvose zvakafanira zvekushandisa zvinodiwa, uye kurwisa ukoshi ichava huru.

Asati kuita miedzo kutarisa hwokugadzira mamiriro ezvinhu mudziyo. Chinhu chokutanga kutarisa chitarisiko chake. The Chishandiso anofanira kuva isina makatsemuka, uyewo zviratidzo kuti akapisa pasi. Hazvifaniri kutorwa kuti Kuedzwa midziyo achirasika, sezvo paine kukundikana diki kungaita kuti mamiriro ezvinhu asingafadzi.

Varistors: Chikumbiro

mano kwakadaro basa rinokosha muupenyu hwevanhu. Kubva ose pamusoro tinogona kutaura kuti sefungu suppressor, nheyo iri kudzivirira zvemagetsi kubva kumusoro voltage pamusoro pomumbure, kubatsira kudzivirira kukuvadzwa vazhinji midziyo yemagetsi uye wiring kuponesa kuvimbika. The huru yacho ndiyo zvemagetsi redunhu siyana zvokushandisa. Somuenzaniso, zvaitika pakutanga-up of chiedza zvinhu, idzo vaakadanawo ballasts. Uyewo nemagetsi nematunhu kuiswa mune chaiyo varistors, kushandiswa iri zvakakodzera kudzikamisa voltage uye uno. mano kwakadaro zvichiri kushandiswa simba mitsetse. Asi ipapo vanodanwa arresters, kuti uchishandisa voltage pamusoro volts vanopfuura zviuru makumi maviri.

Varistors unogona kushanda nenzira hombe voltage siyana unotanga chidukuduku chamunowana 3 V, uye inoguma 200 V. Kana magetsi maatomu akafanana, pano kuwanda kubva 0.1 1 A. aya iyezvino Nhamba ndivo chete ichiri kushanda pasi voltage hwokugadzira midziyo .

Positive chokuita varistors

Izvi mhando midziyo ane unhu hwakawanda hwakanaka, kana tikaenzanisa pamwe nemamwe mano, akadai kuwedzera arrester. Zvikomborero izvi zvinokosha dzinosanganisira:

• High-nokukurumidza nokushanda chinhu;
• tinogona club kusiyana pasina inertia kubudikidza kuitika;
• tinogona kushandiswa pamusoro voltage pamwero iri zvinobva 12 kusvika 1800;
• refu basa upenyu;
• vashoma shoma mutengo nokuda nyore kuvakwa.

zvinhu zvisingafadzi

Pamwe yakadaro vakawanda zvakanakira pamusoro dzimwe mano, panewo zvinokosha payakaipira, pakati zviri.

1. Varistors vane hombe yakawanda dzokuzvikoshesa capacitance, hunobata basa yemagetsi network. chinoumba kwakadaro kunogona kuva kuwanda kubva 80 kusvika 3000 PF. It zvinoenderana nezvinhu zvizhinji; magadzirirwo uye pakuonekwa varistor, uye kufadza kukosha voltage chechetere. Zvinokosha kucherechedza kuti pane dzimwe nguva, izvi drawback guru kunogona kuva huru zvinobatsira. Asi zvinokwanisika rakanyatsojeka zvisingawanzoitiki Somuenzaniso, kana ukashandisa varistor ari filters. Pakadaro, guru vanokwanisa rive chimiso ari mains voltage.
2. Zvichienzaniswa arresters, varistors havakwanisi kupera panguva kunonyanyisa mwero voltage.

Kuwedzera mwero zvinovhiringidza zvakafanira yokukudza okunze, uye izvi zvaisanganisira vaburitsi zhinji.

Recommendations nokuti kugadzwa

Kana pane vanoda kusanganisa varistor musimba afoot, unofanira kuyeuka pfungwa idzi dzinokosha:

• Unofanira kugara tichiyeuka kuti chigadzirwa ichi haazorambi nokusingaperi, uye kuchauya ezvinhu akadaro kuti ichaita kuti ayo kuputika. Kuti izvi zvisaitike, unofanira kushandisa unodzivirira sefa dzaunogona kuisa ose varistor.
• Zvinofanira kucherechedzwa kuti romusarasara hwokugadzira mano dzakaderera avo maitiro oxide dzomuzana. Naizvozvo zvakanaka kushandisa ichi mhando varistor.

mhedziso

Varistor inoita basa rinokosha kushanda magetsi nematunhu zhinji. Sezvambotaurwa, kwakadai semiconductor resistors anoshanda kuderedza kuzvidzivirira waivako muwanze voltage kana ano. Nokuda ichi mukana vari kuiswa munzvimbo dzakawanda magetsi namano. Kana marudzi varistor voltage, chinangwa iyo inoendeswa kuchinja nemishonga, haadimbuki mano. Zvinoitawo chinonditadzisa kurukutika wiring. Saka, zvinhu izvi zvinovimbisa kudzivirirwa pane marudzi voltage Network.