Musiyano uripo pakati peMCB neMCCB

Kune mhando mbiri dzakajairika dzemacircuit breaker anoshandiswa zvakanyanya mumhando dzakasiyana siyana:macircuit breakers ekesi akaumbwa (MCCBuyemadiki ecircuit breakers (MCB). Zvese zvinhu zvakakosha mumasisitimu emagetsi, zvichidzivirira kubva pakuzara kwemagetsi uye mashort circuit. Zvisinei, pane musiyano mukuru pakati pemhando mbiri idzi dzemacircuit breaker, uye kunzwisisa musiyano uyu kwakakosha pakusarudza chigadzirwa chakakodzera chekushandisa kwacho.

Basa guru reMCCB nderekudzivirira overload uye short-circuit mu low-voltage distribution systems uye motor protection circuits. Dzinozivikanwa nekuvimbika uye kugadzikana kwadzo, zvichiita kuti dzive sarudzo yakakurumbira munzvimbo dzemaindasitiri. Miniature circuit breakers, kune rumwe rutivi, dzinoshandiswa kudzivirira ma electrical terminal distribution units muzvivakwa. Kunyangwe dziri circuit breakers, pane musiyano uripo pakati peMCCBs neMCBs unofanirwa kufungwa nezvawo pakusarudza chigadzirwa chakakodzera chekushandisa kwacho.

Chekutanga, ma "molded case circuit breakers" nema "miniature circuit breakers" anofanirwa kutevedzera mitemo yezvigadzirwa uye kuva nepfungwa imwechete yekushanda nema "circuit breakers". Asi pane musiyano uri pachena pakati pezviviri izvi maererano nemagetsi ne "mechanical parameters" uye nzvimbo dzakakodzera dzekushanda.

Imwe yemisiyano mikuru iri pakati peMCCB neMCB ndeyemagetsi aanogona kubata nawo. MCCB ine chiyero chemagetsi chinosvika 2000A, zvichiita kuti ive yakakodzera makamuri makuru uye mitoro yemagetsi inorema. Kune rumwe rutivi, MCB dzine chiyero chemagetsi chepamusoro che125A, izvo zvinoderedza kugona kwadzo uye zvinoita kuti dzive dzakakodzera kushandiswa muzvidiki. Musiyano uyu muzviyero zvemazuva ano zvinoreva kuti MCCB dzakakodzera zvakanyanya munzvimbo dzemaindasitiri nedzemabhizinesi uko mitoro yemagetsi mikuru inowanikwa, nepo MCB dzinowanzo shandiswa munzvimbo dzekugara nedzemabhizinesi madiki.

Pamusoro pemaparamita emagetsi, panewo musiyano muparamita dzemakanika pakati peMCCB neMCCB. Semuenzaniso, waya dzakabatana neMCCB dzinowanzova dzakakora, nenzvimbo yepamusoro inodarika 35 square metres. Kusiyana neizvi, MCB yakagadzirirwa kushandisa waya diki uye yakakodzera nzvimbo dzinosvika 10 square metres. Musiyano uyu wemakanika unoreva kuti MCCB yakakodzera kubata masisitimu makuru emagetsi, nepo MCB yakakodzera kushandiswa kudiki.

Chimwe chinhu chakakosha chekufunga nezvacho inzvimbo yebasa. MCCB dzakagadzirirwa kushandiswa munzvimbo dzakasiyana-siyana, kusanganisira nzvimbo dzemaindasitiri nedzekutengeserana. Dzinokwanisa kutakura mitoro yemagetsi inorema uye dzakasimba, zvichiita kuti dzikwanise kushandiswa uko kuvimbika kwakakosha. MCB, kune rumwe rutivi, dzakagadzirirwa kushandiswa mukuvaka masisitimu ekugovera magetsi uye dzakakodzera nzvimbo dzekugara nedzemabhizinesi madiki.

Muchidimbu, kunyange zvazvo MCCB neMCB zviri zvinhu zvakakosha mumasisitimu emagetsi, zvakagadzirirwa kushandiswa kwakasiyana uye zvine musiyano mukuru mumagetsi nematanho azvo emakanika. Kunzwisisa musiyano uyu kwakakosha pakusarudza chigadzirwa chakakodzera kushandiswa kwacho, kungave kuri munzvimbo yemaindasitiri, yekutengeserana kana yekugara. Nekufunga nezvezvinhu zvakaita sechiyero chazvino, parameter dzemakanika uye nzvimbo yekushanda, sarudzo ine ruzivo inogona kuitwa pakusarudza MCCB neMCB dzesisitimu yemagetsi chaiyo.