KunzwisisaRCCB: Chinhu Chinokosha Pakuchengetedza Magetsi
Munyika yekuchengetedzwa kwemagetsi, maResidual current circuit breakers (RCCBs) zvishandiso zvakakosha zvinodzivirira vanhu nepfuma kubva kunjodzi dzemagetsi. Paunenge uchiongorora kuoma kweRCCBs, zvakakosha kunzwisisa basa rayo, kukosha kwayo, uye chinangwa chayo mumagetsi emazuva ano.
Chii chinonzi RCCB?
Chinobvisa magetsi (RCCB), chinozivikanwawo semudziyo wemagetsi unodzivirira magetsi (RCD), mudziyo wemagetsi unobvisa magetsi pamagetsi kana ukaona kusawirirana pakati pemagetsi aripo neasina kugadzikana. Kusawirirana uku kunogona kukonzerwa nezvikonzero zvakasiyana-siyana, zvakaita sewaya dzisina kunaka, kukundikana kwekudzivirira magetsi, kana kusangana nemagetsi nemagetsi aripo netsaona. RCCB inogara ichitarisa magetsi ari kufamba nemagetsi mumagetsi uye inogona kuona kunyange misiyano midiki, inowanzoita 30 milliamps (mA). Kana kusawirirana kukaonekwa, inokurumidza kubvisa magetsi, nokudaro ichidzivirira kuvhunduka kwemagetsi uye kuderedza njodzi yemoto wemagetsi.
Kukosha kweRCCB
Kukosha kweRCCBs mukuchengetedzeka kwemagetsi hakufanirwe kutaurwa zvakanyanya. Zvivako zvakawanda zvekugara uye zvemabhizinesi zvinofanirwa kuisa maRCCBs zvichienderana nemitemo yakasiyana-siyana yekuchengetedza. Mudziyo uyu ndiwo wekutanga kudzivirira njodzi dzemagetsi uye unogona kuderedza zvakanyanya njodzi yekuvhunduka kwemagetsi nemoto zvinokonzerwa nekutadza kwemagetsi.
Pamusoro pekuchengetedza vashandi, maRCCB anodzivirirawo midziyo yemagetsi nemasisitimu. MaRCCB anodzivirira kubva pakuwanda kwemagetsi uye mashort circuits, zvichibatsira kuchengetedza kushanda kwemidziyo yemagetsi, nokudaro zvichiwedzera hupenyu hwemidziyo uye zvichideredza mari yekugadzirisa.
Nheyo yekushanda yeRCCB
RCCB inoshanda nekuona musiyano uripo pakati pewaya dzinopisa nedzisina simba. Kazhinji, waya inoyerera ichipinda mudunhu kuburikidza newaya dzinopisa inofanira kunge yakaenzana newaya inodzoka kuburikidza newaya dzisina simba. Kana paine dambudziko, senge waya inoyerera ichienda pasi, RCCB inoona kusawirirana uku.
Kana RCCB yangoona chimwe chinhu chisina kujairika, inotanga nzira inobvisa circuit mukati memamiliseconds. Mhinduro iyi yekukurumidza inokosha pakudzivirira kukuvara kwakanyanya kana kufa nekuda kwekuvhunduka kwemagetsi.
Mhando dzeRCCB
Kune mhando dzakasiyana dzeRCCB, imwe neimwe iine chinangwa chayo. Mhando dzakajairika dzinosanganisira:
1. Bipolar RCCB: Inoshandiswa kumacircuits echikamu chimwe chete uye inowanzo shandiswa munzvimbo dzekugara.
2. RCCB ine matanda mana: Yakagadzirirwa maseketi ane zvikamu zvitatu, anoshandiswa zvakanyanya mumaindasitiri nemabhizimisi.
3. RCCB neMCB**: Mimwe michina inosanganisa mabasa eRCCB neMinitary Circuit Breaker (MCB) kuti ipe dziviriro yemagetsi akasara uye dziviriro ye overload muyuniti imwe chete.
Kuisa uye Kugadzirisa
Kuisa zvakanaka uye kugadzirisa nguva dzose ma residual current circuit breakers (RCCBs) kwakakosha kuti ave nechokwadi chekuti anoshanda zvakanaka. Zvinokurudzirwa kuti aiswe nenyanzvi yemagetsi kuti aenderane nemutemo wemagetsi wemunharaunda. Pamusoro pezvo, ma residual current circuit breakers anofanira kuongororwa nguva dzose uchishandisa bhatani rekuyedza riri pamudziyo kuti ave nechokwadi chekuti ari kushanda nemazvo.
Muchidimbu
Muchidimbu, maResidual current circuit breakers (RCCBs) chikamu chakakosha chemagetsi emazuva ano, anopa dziviriro yakakosha yemagetsi. Izvi zvishandiso zvakakosha zvinodzivirira hupenyu nepfuma nekuona kusawirirana kwemagetsi uye nekukurumidza kubvisa macircuit. Sezvo mitemo yekuchengetedza magetsi ichiramba ichichinja, maRCCB acharamba achiita basa rakakosha mukuona kuti michina yemagetsi yakachengeteka uye yakavimbika. Ingave mumba, muhofisi, kana mumaindasitiri, kunzwisisa nekushandisa maRCCB idanho rakakosha rekuenda kunzvimbo yakachengeteka yemagetsi.
Nguva yekutumira: Kubvumbi-21-2025