Kuongorora Basa uye Mashandisirwo eMCB Circuit Breaker

Madiki madiki edunhu(MCBs) zvinhu zvakakosha mumagetsi emazuva ano, zvichipa dziviriro yakakosha kubva pakuwanda kwemagetsi uye mashort circuits. Sezvo kuchengetedzeka kwemagetsi kuri kuramba kuchikosha munzvimbo dzekugara nedzekutengeserana, kunzwisisa mashandiro nemabhenefiti eMCBs kwakakosha kune chero ani zvake ari mukuisa kana kugadzirisa magetsi.

Chii chinonzi MCB?

Chinopwanya dunhu diki (MCB) chishandiso chemagetsi chakagadzirirwa kumisa dunhu remagetsi otomatiki kana chaona dambudziko, senge overload kana short circuit. Kusiyana nemafuse echinyakare, ayo anofanira kutsiviwa mushure mekunge aputika, maMCB anogona kudzoserwa patsva mushure mekugumburwa, zvichiita kuti ave sarudzo iri nyore uye inoshanda yekudzivirira dunhu.

Mashandiro anoita MCB

MaMinitary circuit breakers (MCBs) anoshanda zvakanyanya zvichibva pamashandiro maviri: thermal nemagnetic. Thermal mechanism inoshandisa bimetallic strip inokotama nekuda kwe overload condition, zvichizopedzisira zvaita kuti switch ivhure circuit. Magnetic mechanism, kune rumwe rutivi, inopindura ku short-circuit condition ichishandisa electromagnet inovhura switch nekukasika, ichidzivirira kukuvara kwemagetsi.

Mhando dzeMCBs

Kune mhando dzakasiyana dzeMCB, imwe neimwe yakagadzirirwa kushandiswa kwayo:

1. Zvidimbu zverudzi rweB zvidiki zvinopwanya dunhu:Dzakakodzera kushandiswa mudzimba, dzinogona kubata mafungu emvura ari pakati nepakati. Mafungu adzo anogumburwa akapetwa katatu kusvika kashanu kupfuura mafungu anotarisirwa.
2. Madiki eDunhu C eDunhu reChikamu**:Ma "miniature circuit breakers" erudzi rweC akanakira kushandiswa mumabhizinesi nemaindasitiri uye anokwanisa kutsungirira ma "inrush currents" akakwira, zvichiita kuti akwanise kushandiswa mumidziyo yakaita semamota nematransformer. Ane "trip current" yakapetwa ka5 kusvika ka10 kupfuura "rated current".
3. Mhando D yeMCB:Macircuit breaker aya akagadzirirwa kushandiswa mumabasa anorema, akadai semamota makuru nematransformer, uye anogona kubata ma inrush currents kagumi kusvika makumi maviri kupfuura rated current.
4. Mhando yeK uye mhando yeZ MCB:Idzi iMCB dzakanyanya kushandiswa pakushandisa zvinhu zvakasiyana, zvakaita sekudzivirira zvinhu zvinotakura simba kana michina yemagetsi inobatwa nemagetsi.

Zvakanakira kushandisa MCB

1. Kuchengetedzeka:Ma "miniature circuit breakers" akachengeteka kupfuura ma "fuse". Anogona kukurumidza kubvisa "circuit" kana paine chikanganiso, zvichideredza njodzi yemoto wemagetsi nekukuvara kwemidziyo.
2. Zviri nyore:Kusiyana nemafuse anoda kutsiviwa mushure mekukundikana, maMCB anogona kudzoserwa patsva neswitch iri nyore, zvichideredza nguva yekushanda uye basa rekugadzirisa.
3. Mazvo:MaMCB anopa magadzirirwo ekudzivirira chaiwo, achipa mhinduro dzakagadzirwa zvichienderana nezvinodiwa nemasisitimu emagetsi.
4. Dhizaini Yakabatana:MaMCB anowanzova madiki uye madiki pane mafuse echinyakare, zvichiita kuti zvive nyore kuisa munzvimbo dzakamanikana.
5. Inodhura Zvishoma:Kunyange hazvo mari yekutanga muMCBs ingave yakakwira kupfuura mafuse, kugara kwenguva refu kwavo uye mari shoma yekugadzirisa zvinoita kuti vave sarudzo isingadhuri zvakanyanya mukufamba kwenguva.

Kuisa uye Kugadzirisa

Kuisa nekugadzirisa ma miniature circuit breakers (MCBs) kwakakosha kuti zvive pachena kuti anoshanda zvakanaka. Iva nechokwadi chekusarudza mhando yeMCB yakakodzera zvichienderana nezvinodiwa nemutoro uye woiisa zvichienderana nemutemo wemagetsi wemunharaunda. Kuongororwa nguva dzose kunofanirwa kuitwa kuti uve nechokwadi chekuti MCB iri kushanda zvakanaka uye hapana zviratidzo zvekusakara kana kukuvara.

Musiyano uripo pakati peMCB neMCCB ndeupi?

Chekutanga, maMCB anonyanya kushandiswa kudzivirira ma "short-circuit" uye overload kudzivirira ma "low currents" (kazhinji pasi pe100 amperes), nepo maMCCB achinyanya kushandiswa kudzivirira ma "short-circuit" uye overload kudzivirira ma "high currents" (kazhinji pamusoro pe100 amperes). Izvi zvinokonzerwa nemagadzirirwo akasiyana ezvimiro nezvinhu zvinoshandiswa nemaMCB nemaMCCB kuti zvigamuchire ma "currents" akasiyana uye mitoro. Chechipiri, maMCB anowanzo shandisa zvikamu zvemagetsi zvakaita se "reeds" uye "thermal relay" kudzivirira, nepo maMCCB achishandisa michina yemagetsi senge "thermal-magnetic protectors".

Muchidimbu

Zvichitaurwa zviri nyore, maMinitary Circuit Breaker (MCBs) anoita basa rakakosha mukudzivirira masisitimu emagetsi kubva pakuwanda kwemagetsi uye mashort circuit. Kugona kwawo kupa dziviriro nekukurumidza, yakavimbika, pamwe nekureruka uye kushandisa mari zvakanaka, kunoita kuti ave chikamu chakakosha mukuisa magetsi mudzimba nemabhizimisi. Sezvo tekinoroji ichiramba ichifambira mberi, kukosha kweMCBs mukuona kuchengetedzeka kwemagetsi kuchawedzera, zvichiita kuti zvive zvakakosha kuti nyanzvi nevaridzi vedzimba vanzwisise kugona kwavo uye mabhenefiti avo.