Tsananguro yakadzama yeDC miniature circuit breaker (DC MCB)

KunzwisisaDC MCB: Gwaro Rakazara

Munyika yeinjiniya yemagetsi uye kugoverwa kwesimba, izwi rekuti "DC Miniature Circuit Breaker (MCB)" rave kukosha. Sezvo kudiwa kwemasisitimu emagetsi anoshanda uye akavimbika kuri kuramba kuchikura, kunzwisisa basa reDC Miniature Circuit Breakers kwakakosha kune nyanzvi nevanofarira basa iri.

Chii chinonzi DC miniature circuit breaker?

DC miniature circuit breaker (MCB) mudziyo unodzivirira unodzima circuit yega kana paine overload kana short circuit. Kusiyana neAC miniature circuit breakers, iyo inoshandiswa muAC systems, DC miniature circuit breakers yakagadzirirwa kubata maDC applications. Musiyano uyu wakakosha nekuti maitiro e current muDC system akasiyana zvikuru neari muAC system, kunyanya maererano ne arc disappear uye fault current characteristics.

Kukosha kweDC Miniature Circuit Breakers

Kukosha kwemaDC miniature circuit breakers hakufaniri kutaurwa zvakanyanya, kunyanya mumashandisirwo ayo magetsi eDC aripo. Mashandisirwo aya anosanganisira masisitimu esimba rinogona kushandiswazve senge solar photovoltaic (PV) installations, mabhatiri emagetsi, uye mota dzemagetsi. Muzviitiko izvi, kuvimbika uye kuchengetedzeka kwemagetsi ndiko kwakakosha, saka basa reDC miniature circuit breakers rakakosha.

1. Dziviriro yekuwedzera mutoro: MaDC Miniature Circuit Breakers (MCBs) anoshandiswa kudzivirira macircuit kubva pakuwanda kwemagetsi. Kana magetsi adarika simba remagetsi rakatarwa recircuit, MCB inogumburwa, ichibvisa mutoro uye ichidzivirira kukuvara kunogona kuitika patambo nemidziyo yakabatana.

2. Dziviriro yepfupi: Kana paine pfupiso, DC miniature circuit breaker (MCB) inogona kuona zvikanganiso nekukasika uye kudzima magetsi. Kukurumidza uku kwakakosha kudzivirira kukuvara kwemoto nemidziyo.

3. Kuchengeteka kwesimba rinodzokororwa: Nekuwedzera kukurumbira kwesimba rezuva nemabhatiri, maDC miniature circuit breakers anoita basa rakakosha mukuona kuchengetedzeka nekushanda zvakanaka kwesimba iri. Anobatsira kudzora njodzi dzinokonzerwa nemagetsi akawandisa uye voltages dzinowanikwa musimba rakadaro.

Nheyo yekushanda yeDC Miniature Circuit Breaker

Nheyo yekushanda kweDC Miniature Circuit Breaker (MCB) ndeyemagetsi uye kupisa. Kana paine overload kana short circuit, mashandiro emukati meMCB anoona overload current. Thermal element ndiyo inokonzera overload yenguva refu, nepo electromagnetic element iri inokonzera short circuit yenguva pfupi. Kana paine fault yaonekwa, MCB inogumburwa, yovhura circuit uye yocheka current.

Sarudza DC MCB chaiyo

Kusarudza DC MCB yakakodzera kune chimwe chinhu chinoda kufungwa nezvezvinhu zvinotevera:

- Rated Current: Chiyero cheMinitary Circuit Breaker (MCB) chinofanira kukwanisa kubata simba guru rinotarisirwa mucircuit. Zvakakosha kusarudza mudziyo unogona kubata mutoro mumamiriro ezvinhu ekushanda akajairwa usingagumburwi.

- Voltage yakayerwa: Ita shuwa kuti voltage yakayerwa yeMCB inoenderana nevoltage yakayerwa yeDC system. Kushandisa MCB ine voltage yakaderera kunogona kukonzera kutadza kushanda zvakanaka uye njodzi dzekuchengetedza.

- Kugona kupwanya: Izvi zvinoreva simba guru remagetsi rinogona kukanganiswa ne "miniature circuit breaker" pasina kukuvara. Zvakakosha kusarudza "miniature circuit breaker" ine simba rakakwana rekupwanya.

- Rudzi rweMutoro: Mitoro yakasiyana (inodzivisa, inductive kana capacitive) ingada mhando dzakasiyana dzeMCBs. Kunzwisisa rudzi rwemutoro kwakakosha kuti uwane kushanda kwakanaka.

Muchidimbu

Muchidimbu, maDC miniature circuit breakers (MCBs) chinhu chakakosha mumagetsi emazuva ano, kunyanya mukushandiswa kwemagetsi akananga. Anodzivirira kubva pakuwanda kwemagetsi uye mashort circuit, zvichiita kuti michina yemagetsi ive yakachengeteka uye yakavimbika. Sezvo tekinoroji ichiramba ichichinja, basa remaDC miniature circuit breakers richawedzera kukosha, saka nyanzvi dziri mundima iyi dzinofanira kunzwisisa hunhu hwadzo, mabhenefiti adzo, uye zvinodiwa pakusarudza. Ingave iri mundima yemagetsi anogona kushandiswazve kana mota dzemagetsi, kunzwisisa maDC miniature circuit breakers kwakakosha kune chero munhu anoshanda muinjiniya yemagetsi uye kugovera magetsi.