KunzwisisaMaRCCB nemaMCB: Zvikamu Zvakakosha zveKuchengetedzwa kweMagetsi
Munyika yekuisa magetsi, kuchengetedzeka kwakakosha zvikuru. Zvinhu zviviri zvakakosha zvinoita basa guru mukuona kuchengetedzeka kwemagetsi iresidual current circuit breakers (RCCBs) uye miniature circuit breakers (MCBs). Midziyo miviri iyi ine zvinangwa zvakasiyana asi inowanzo shandiswa pamwe chete kupa dziviriro yakakwana kubva kumatambudziko emagetsi. Chinyorwa chino chinoongorora zvakadzama mashandiro, misiyano, uye kukosha kweRCCBs neMCBs mumasisitimu emagetsi emazuva ano.
Chii chinonzi RCCB?
RCCB, kana kuti residual current circuit breaker, chishandiso chekuchengetedza chakagadzirirwa kudzivirira kuvhunduka kwemagetsi nemoto wemagetsi unokonzerwa nekutadza kwepasi. Chinoshanda nekutarisa kuenzana kwesimba remagetsi rinoyerera kuburikidza newaya dziri mhenyu nedzisina kusimba. Mumamiriro ezvinhu akajairwa, simba remagetsi muwaya dzese mbiri rinofanira kuenzana. Zvisinei, kana paine kutadza, sekubuda kwemvura nekuda kwekutadza kwekudzivirira kana mumwe munhu akabata waya iri mhenyu, RCCB inoona kusawirirana uku. Painoona musiyano, kazhinji wakaderera se30 mA, inodonha, ichidzima simba nekukurumidza.
MaRCCB akakosha munzvimbo dzine njodzi yekubatwa nemagetsi zvakanyanya, zvakaita semudzimba dzekugezera, makicheni nekunze. Anopa dziviriro yakakosha, kunyanya kumapoka evanotambura akadai sevana nevakwegura.
Chii chinonzi MCB?
MCBs (miniature circuit breakers), kune rumwe rutivi, dzakagadzirirwa kudzivirira macircuit kubva pakuzara uye ma short circuit. Kusiyana neRCCBs, dzinonyanya kutarisisa kubuda kwemvura, MCBs dzinoongorora magetsi ari kufamba nepakati pe circuit. Kana magetsi akadarika simba reMCB nekuda kwekuzara kwemagetsi (semuenzaniso, midziyo yakawanda iri kushandiswa panguva imwe chete) kana short circuit (chikanganiso chinoita kuti pave nenzira isingapindi simba), MCB inogumburwa yovhura circuit.
MaMCB akakosha kudzivirira kukuvara kwemidziyo newaya, uye kuderedza njodzi yemoto wemagetsi unokonzerwa nekupisa zvakanyanya. Anowanzoshandiswa muma switchboard edzimba nedzemabhizinesi kuona kuti maseketi anoshanda mukati memiganhu yakachengeteka.
Musiyano mukuru pakati peRCCB neMCB
Kunyange zvazvo maRCCB nemaMCB ari chikamu chakakosha chekuchengetedzwa kwemagetsi, ane mabasa akasiyana:
1. Basa: RCCB inoshandiswa kudzivirira kubva pakukanganiswa kwenyika uye kuvhunduka kwemagetsi, ukuwo MCB inoshandiswa kudzivirira kubva pakuzara kwemagetsi uye kupfupika kwemagetsi.
2. Kushanda: Kufamba kweRCCB nekuda kwekusagadzikana kuripo uye kufamba kweMCB nekuda kwekuwandisa kwesimba remagetsi.
3. Mashandisirwo: RCCB inowanzo shandiswa munzvimbo dzine njodzi yekuvhundutswa nemagetsi, nepo MCB ichi shandiswa kudzivirira maseketi kubva pakuzara.
Kukosha kwekushandisa RCCB neMCB
Kuti magetsi agare akachengeteka, zvinokurudzirwa kuti RCCB neMCB zvibatanidzwe zvakatevedzana. Musanganiswa uyu unopa dziviriro yakakwana kubva pakukanganisa kwepasi uye kuwanda kweseketi. Mukuisa kwemagetsi kwakajairika, MCB inodzivirira seketi kubva pakuwanda kweseketi, nepo RCCB ichiva nechokwadi chekuti chero kubuda kwemvura kwaonekwa uye kubatwa nekukurumidza.
Muchidimbu, maRCCB nemaMCB zvinhu zvakakosha mumagetsi emazuva ano, uye chimwe nechimwe chine basa rakasiyana mukudzivirira njodzi dzemagetsi. Kunzwisisa mashandiro avo nekusiyana kwavo kwakakosha kune chero ani zvake ari mukuisa kana kugadzirisa magetsi. Nekushandisa zvishandiso zvese izvi, varidzi vedzimba nemabhizinesi vanogona kuvandudza zvakanyanya kuchengetedzeka kwavo kwemagetsi uye kuchengetedza hupenyu nepfuma kubva kunjodzi dzemagetsi.
Nguva yekutumira: Kukadzi-05-2025