Nhanganyaya kuSimboti Yekushanda uye Mashandisirwo eMCB

Muminda yeinjiniya yemagetsi nekuchengetedza,madiki ecircuit breakers (MCBs)MaMCB anobatsira zvikuru pakudzivirira macircuit kubva mukukuvadzwa kwakanyanya uye kukuvara kwemacircuit mapfupi. Sechinhu chakakosha chemagetsi emudzimba, emabhizimisi, uye emaindasitiri, maMCB akagadzirwa kuti abvise macircuit otomatiki kana aona dambudziko, nokudaro achidzivirira njodzi dzinogona kuitika dzakadai semoto wemagetsi nekukuvara kwemidziyo.

Chii chinonzikamuchina kekupwanya dunhu kadiki (MCB)?

Miniature circuit breaker (MCB) icircuit breaker inoshandiswa kudzivirira macircuit kubva mukukuvadzwa kwe overcurrent. Kusiyana nemafuse echinyakare anofanirwa kutsiviwa mushure mekuputitswa, maMCB anogona kudzoserwa patsva mushure mekugumburwa, zvichiita kuti ave mhinduro iri nyore uye inoshanda yekudzivirira macircuit. MaMCB anowanikwa mumhando dzakasiyana dze current specifications, anowanzo tangira pa 0.5A kusvika 125A, uye anogona kushandiswa zvakanyanya mumhando dzakasiyana dzemashandisirwo.

Chii chinonzi musimboti wekushanda kweminiature circuit breaker (MCB)?

MaMinitary circuit breakers (MCBs) anonyanya kushanda zvichibva pamatanho maviri:kugumburwa nekupisauyekugumburwa nemaginetiKudzikira kwemhepo kunobata mamiriro ekuwedzera simba. Kunoshandisa bimetallic strip; kana magetsi akakwira zvakanyanya, bimetallic strip inokombama uye inochinja, zvichizopedzisira zvatyora circuit. Kudzikira kwemagetsi kunobata mamiriro e short-circuit. Kunoshandisa electromagnet; kana magetsi angoerekana akwira, electromagnet inogadzira simba remagineti rakasimba, richingotyora circuit.

Maitiro aya maviri anoita kuti ma "miniature circuit breakers" akwanise kudzivirira kuwandisa kwemagetsi uye ma "short circuit" zvichiva chinhu chakakosha mumagetsi emazuva ano.

Mhando dzeMiduku Dzemacircuit Breakers

1. Rudzi B Miniature Circuit Breaker: Iyi circuit breaker yakakodzera kushandiswa mudzimba uye yakagadzirirwa kudonha nekatatu kusvika kashanu kupfuura simba remagetsi rakatarwa. Yakanakira macircuit ane mitoro inodzivisa, senge mwenje nemacircuit ekupisa.
2. Rudzi C Miniature Circuit Breaker: Rudzi urwu rwecircuit breaker runoshandiswa mumabhizinesi nemaindasitiri uye rwakakodzera zvinhu zvinopa simba zvakaita semota nematransformer. Current yayo yekufamba inopetwa ka5 kusvika ka10 kupfuura current yakayerwa, uye inogona kutsungirira mafungu mapfupi asingagumburwe.
3. Mhando D Miniature Circuit Breakers: Ma "miniature circuit breakers" erudzi rweD akagadzirirwa kushandiswa mumabasa anorema, ane "tripping current" yakapetwa ka10 kusvika ku20 kupfuura "rated current". Anowanzo shandiswa mu "circuits" dzine "inrush currents" yakawanda, dzakadai se "large motors".

Musiyano uripo pakati peMCB neMCCB ndeupi?
Chekutanga, maMCB anonyanya kushandiswa kudzivirira ma "short-circuit" uye overload kudzivirira pama "low currents" (kazhinji pasi pe100 amps), nepo maMCCB achinyanya kushandiswa kudzivirira ma "short-circuit" uye overload kudzivirira pama "high currents" (kazhinji pamusoro pe100 amps). Izvi zvinokonzerwa nemagadzirirwo akasiyana ezvimiro nezvinhu zvinoshandiswa mumaMCB 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" kudzivirira.

Zvakanakira kushandisa ma "miniature circuit breakers"

Zvichienzaniswa nemafuse echinyakare, ma miniature circuit breakers (MCBs) ane mabhenefiti akawanda. Chekutanga, maMCB akavimbika uye anokurumidza kupindura kana paine zvikanganiso zvemagetsi. Kugadziriswa kwawo mushure mekugumburwa kunoderedza kudiwa kwekutsiviwa kakawanda, nokudaro zvichideredza mari yekugadzirisa. Uyezve, maMCB madiki uye ari nyore kuisa, zvichiita kuti ave sarudzo inosarudzwa ye switchboards dzemazuva ano.

Uyezve, maMinitary Circuit Breakers (MCBs) anowedzera kuchengetedzeka nekuderedza njodzi yemoto wemagetsi uye kukuvara kwemidziyo. Magadzirirwo awo anoabvumira kushanda mukati mematanho chaiwo, zvichiita kuti masisitimu emagetsi ashande zvakanaka uye kudzivirira njodzi dzekuwanda kwemagetsi.

Muchidimbu

Muchidimbu, ma miniature circuit breakers (MCBs) zvinhu zvakakosha mumasystem emagetsi, zvichipa dziviriro yakakosha uye dziviriro ye short-circuit. Mhando dzakasiyana dzeMCB dziripo kuti dzigutse zvinodiwa zvakasiyana-siyana zvekushandisa, zvichipa zvakanakira zvakaita sekuvimbika kwakanyanya, nyore kushandisa, uye kuchengetedzeka kwakanyanya. Nekuvandudzwa kuri kuitwa masisitimu emagetsi, kukosha kweMCBs mukuona kuchengetedzeka kwenzvimbo dzekugara nedzemaindasitiri hakugone kufuratirwa. Kune avo vanoshanda muinjiniya yemagetsi kana kuchengetedzeka, kunzwisisa mashandiro nemabhenefiti eMCBs kwakakosha, sezvo zvichibatsira kuona kuti masisitimu emagetsi anoshanda zvakanaka uye akachengeteka.