Kuongororwa kweMabasa neMashandisirwo eDC MCB

KunzwisisaDC MCB: Gwaro Rakazara

Izwi rekuti "DC miniature circuit breaker" (DC MCB) riri kuramba richinyanya kutaurwa muminda yeinjiniya yemagetsi uye kugoverwa kwemagetsi. Sezvo kudiwa kwemasisitimu emagetsi anoshanda uye akavimbika kuri kuramba kuchikura, kunzwisisa basa nemashandiro emaDC miniature circuit breakers kwakakosha kune nyanzvi nevanofarira zvakafanana.

Chii chinonziDC 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 mumaAC systems, DC miniature circuit breakers yakagadzirirwa zvakananga maDC applications. Musiyano uyu wakakosha nekuti hunhu hweDC systems huripo hunosiyana zvakanyanya nehweAC systems, kunyanya maererano ne arc disappear uye fault current characteristics.

Kukosha kweDC Miniature Circuit Breakers

Kukosha kwemaDC miniature circuit breakers hakufanirwe kutaurwa zvakanyanya, kunyanya mumashandisirwo ayo magetsi eDC aripo. Mashandisirwo aya anosanganisira masisitimu esimba rinogona kushandiswazve senge solar photovoltaic (PV) installations, bhatiri emagetsi, uye mota dzemagetsi. Mumamiriro ezvinhu aya, kuvimbika uye kuchengetedzeka kwemagetsi ndizvo zvinonyanya kukosha, zvichiita kuti basa reDC miniature circuit breakers rive rakakosha.

1. Dziviriro Yekuremerwa Zvakawandisa: MaDC miniature circuit breakers (MCBs) anoshandiswa kudzivirira macircuit kubva pakuwanda kwemagetsi. Kana magetsi adarika simba remacircuit, MCB inodonha, zvichidzivirira kukuvara kwecircuit nemidziyo yakabatana.
2. Dziviriro yepfupi-yedunhu: Kana paine denderedzwa pfupi, maDC miniature circuit breakers (MCBs) anokurumidza kubvisa denderedzwa, zvichideredza njodzi yemoto nekukuvara kwemidziyo. Kukurumidza uku kwakakosha pakuchengetedza kuchengetedzeka kwemagetsi.
3. Maitiro ekugadzirisazve ari nyore kushandisa: Mushure merwendo, DC miniature circuit breaker inogona kudzorerwa patsva zviri nyore, ichikurumidza kudzoreredza simba pasina kutsiva circuit breaker, zvichivandudza nyore kwekutonga kwesimba remagetsi.

Zvinhu zvikuru zveDC miniature circuit breakers

Pakusarudza DC miniature circuit breaker, zvinhu zvakakosha zvinofanirwa kutariswa:

Yakayerwa Iye Zvino: MaDC miniature circuit breakers (MCBs) anowanikwa mumhando dzakasiyana dzema currents akarongwa, zvichibvumira vashandisi kusarudza mudziyo wakakodzera zvichienderana nezvinodiwa zvavo zvekushandisa. Kusarudza current miniature circuit breaker yakakodzera kwakakosha pakuona dziviriro yakakwana.

• Vheji yakayerwa: Voltage yakayerwa yeDC miniature circuit breaker inoratidza voltage yakanyanya yainogona kutsungirira. Zvakakosha kusarudza miniature circuit breaker inoenderana nevoltage level yesystem yaichaiswa.
• Hunhu hweRwendo: Ma "miniature circuit breakers" akasiyana ane hunhu hwakasiyana hwekusvetuka, izvo zvinosarudza kuti anokurumidza sei kupindura kana akawandisa uye ma "short circuit" akawanda. Kunzwisisa hunhu uhwu kwakakosha pakuona kuchengetedzeka uye kuvimbika kwemasisitimu emagetsi.
• Kuisa uye Kugadzirisa: MaDC miniature circuit breakers (MCBs) akagadzirirwa kuiswa nekugadziriswa zviri nyore. Anogona kuiswa paDIN rails dzakajairwa uye akakodzera kushandiswa kwakasiyana-siyana kubva kunharaunda dzekugara kusvika kumaindasitiri.

Kushandiswa kweDC Miniature Circuit Breakers

MaDC miniature circuit breakers ane mashandisirwo akasiyana-siyana, anosanganisira:

• Sisitimu yekugadzira simba rezuva: Mukuisa ma solar photovoltaic, maDC MCB anodzivirira waya nezvimwe zvikamu kubva pakuzara uye ma short circuits, zvichiita kuti system igare yakachengeteka uye ichishanda zvakanaka.
• Masisitimu Ekuchengetera Mabhatiri: Sezvo nzira dzekuchengetedza simba dziri kuwanda, maDC MCB anoita basa rakakosha mukudzivirira masisitimu emabhatiri kubva kumatambudziko emagetsi.
• Mota dzeMagetsi: Mumotokari dzemagetsi, maDC MCB akakosha pakudzivirira masisitimu emagetsi emotokari, kuona kuti inoshanda zvakachengeteka uye kudzivirira kukuvara.

 

Ndeupi musiyano uripo pakati peAC MCB neDC MCB?

AC MCB yakagadzirwa nepfungwa iyi yekuvhara magetsi, saka kudzvanywa kwearc hakunyanyi kuoma. Kusiyana neizvi, maDC MCB anoda ma arc chutes makuru kana magineti kuti abate DC current yakasimba sezvo ichiyerera nedivi rimwe chete. Izvi zvinobvisa kupisa uye zvinodzima arc, zvichiita kuti pave nekukanganiswa kwakachengeteka.

 

Muchidimbu

Zvichitaurwa zviri nyore, maDC miniature circuit breakers (MCBs) zvinhu zvakakosha mumagetsi emazuva ano eDC. Kugona kwawo kuchengetedza magetsi akawanda uye mapfupi kunoita kuti ave akakosha mukushandiswa kwakadai sesimba rinogona kushandiswazve, kuchengetedza simba remabhatiri, uye mota dzemagetsi. Sezvo tekinoroji ichiramba ichifambira mberi, kunzwisisa nekushandisa maDC miniature circuit breakers kuchave kwakakosha zvikuru pakuona kuchengetedzeka nekuvimbika kwemasystem emagetsi munyika iri kuwedzera kushandisa magetsi.