Mwedzi wapera, nyanzvi yemagetsi pafekitori yekugadzira yakaita chikanganiso chidiki ichichengetedza residual current circuit breaker (RCCB): yakadzosera waya yemagetsi pasi isina kuongorora kaviri. Mukati meawa imwe chete, dambudziko rekubuda kwemvura rakaitika muworkshop, asi RCCB yakakundikana kugumburwa, zvichikonzera kuvhunduka kwemagetsi kumushandi uye zvakamanikidza fekitori kuti ivharwe kuti igadziriswe. Chiitiko ichi hachisi chimwe chinhu chinosiyana—kupfuura 60% yekukundikana kwe circuit breaker kunokonzerwa nekushanda zvisina kunaka, izvo zvisingangowedzere mari yekugadzirisa chete asiwo zvinokonzera njodzi huru dzekuchengetedza. Nhasi, tichatsanangura zvikanganiso zvishanu zvinowanzoitwa nenyanzvi dzemagetsi padzinoshanda nemarudzi ese e circuit breakers, zvichikubatsira kudzivirira zvikanganiso uye kuona kuti magetsi anoshandiswa zvakachengeteka.
Njodzi huru yekushanda zvisina kunaka iri mukusaonekwa kwayo uye kuparadza kwayo. Zvikanganiso zvidiki zvakawanda, zvakaita sekubatanidza ma terminal asina kurongeka kana kugadzirisa ma parameter zvisina tsarukano, zvinogona kusakonzera kukundikana nekukurumidza asi zvinokanganisa zvishoma nezvishoma mashandiro e circuit breaker, zvichikonzera tsaona dzinodarika mwero, pfupi, kana kubuda kwemvura nekufamba kwenguva. Mhando dzakasiyana dze circuit breakers (Air Circuit Breakers - ACB, Molded Case Circuit Breakers - MCCB, Miniature Circuit Breakers - MCB, Residual Current Circuit Breakers - RCCB, Residual Current Breaker ine Overcurrent protection--RCBO) dzine maumbirwo nemabasa akasiyana, saka njodzi nenzira dzekudzivirira mashandiro asina kunaka dzinosiyanawo.
Heano mabasa mashanu asingafadzi anowanzoitwa nevashandi vemagetsi nemarudzi ese emacircuit breakers, pamwe chete nenhungamiro yehunyanzvi yekudzivirira:
Chikanganiso1(ACB): Kuvhara nemaoko pasina kudzima mutoro, zvichikonzera kuneta, kupfupika kwemhepo, uye kunyange kukuvara kwearc.Nhungamiro:Tevedzera nzira chaiyo yekuvhara ACB mumamiriro ezvinhu ane mutoro wakawanda—tanga wacheka mutoro, tarisa circuit kuti uone kana paine zvikanganiso, wobva wavhara switch kuti usashande zvakananga pasi pemutoro.
Chikanganiso2(MCCB):Kuvhura nekuvhara nemaoko kakawanda, zvichikonzera kusakara kwemuchina wekushanda, kuderera kwekutyoka, uye kupfupikiswa kwenguva yebasa.Nhungamiro:Tsanangura nguva yakakodzera yekuvhura nekuvhara kweMCCB—dzivisa kushanda nemaoko kakawanda kunze kwekunge zvichidikanwa, uye shanda zvinoenderana nebhuku remichina.
Chikanganiso3(MCB):Kutsiva MCB nemagetsi ane mwero wakakwira, zvichikonzera dziviriro isingarwadzi uye kupera kwemidziyo nekuda kwekutadza kudonha panguva yekuwanda kwemagetsi.Nhungamiro:Sarudza MCB rated current zvichienderana nemutoro chaiwo—usamboitsiva neyakakura specification pasina chikonzero, sezvo icharasikirwa nebasa rekudzivirira overload.
Chikanganiso chechina (RCCB/RCBO):
I. Mashandiro Akajairika Asina Kururama
Zvikanganiso Zvakajairika:
1. Kubatana kwewaya dzisina kusimba uye dzinoshanda, zvichikanganisa dunhu rekuona magetsi rasara;
2. Kukundikana kuita bvunzo dzemazuva ano dzakafanana nebhatani rekuyedza kwenguva yakareba, zvichikonzera kusashanda kwemabasa ekudzivirira asingaonekwe;
3. Kupfupisa kwemodule yekudzivirira yasara yemagetsi kusina mvumo kuti kudzima dziviriro yepakati nechisimba.
Zvikanganiso Zvakafanana neRCCB:
1. Kushandiswa kwega kwega kwekudzivirira overload/short-circuit (RCCBs hadzina basa rekudzivirira overcurrent);
2. Kuisa zvinhu zvisina kururama pakutevedzana kwekuisa zvinhu kana zvabatanidzwa nema circuit breakers (kuisa RCCB isati yasvika circuit breaker).
Zvikanganiso Zvakasiyana neRCBO:
1. Kusarudzwa chete nematanho emagetsi akasara uku uchiregeredza kufananidza magetsi akayerwa emitoro, zvichikonzera kudonha kwemagetsi kakawanda;
2. Kuishandisa semudziyo wekudzivirira magetsi wakasara chete uye kutadza kushandisa basa rayo rekudzivirira magetsi akawandisa, zvichikonzera kushanduka kwedunhu kubva pakubatanidza magetsi necircuit breaker.
II. Matanho Akajairwa Ekudzivirira
1. Siyanisa waya dzakarerekera nedziri kushanda nemavara ari pachigadziko; teveramuchina wekupwanya dunhu kutanga, RCCB yechipirikutevedzana pakusanganisa RCCB nema circuit breakers;
2.Sarudza zvishandiso sezvinodiwa: MaRCCB ndeekudzivirira magetsi akasara chete uye anofanira kusanganiswa nemidziyo yekudzivirira magetsi akawandisa; kune maRCBO, simbisa magetsi asara anoshanda uye magetsi anotarisirwa panguva imwe chete;
3. Ita bvunzo dzekudzivirira dzinosara pamwedzi uchishandisa bhatani rekuyedza pakushandisa kwezuva nezuva. Gadzirisa zvikanganiso usati wapinda;kuvharwa kwemodule yekudzivirira nechisimba kana kupfupikiswa kwesekitori hakubvumidzwe;
4. Gara uchiongorora kusimba kwemuchina uye kusimba kwemuchina. Tsiva michina yakakuvara nezvigadzirwa zvemhando imwe chete uye maparamita akafanana; usasanganise maRCCB, maRCBO kana michina ine maparamita akasiyana.
Chikanganiso 5 (Marudzi ese ezviputsi zvedunhu): Zviteshi zvewaya zvisina kurongeka, zvichikonzera kugadzirwa kwekupisa, oxidation yekubatana, uye short circuit panguva yekushanda kwenguva refu.
Nhungamiro:Tarisa kusimba kweterminal nguva nenguva—sanganisa chimiro cheterminal checircuit breakers dzakasiyana kuti uve nechokwadi chekuti simba rakakodzera rekusimbaradza, kudzivirira kusundira kana kukuvara kweterminals.
Kushanda zvakachengeteka ndiyo hwaro hwemagetsi akavimbika. Kusarudza macircuit breaker emhando yepamusoro uye kugadzirisa maitiro ekushanda zvinogona kuderedza njodzi dzekukundikana.VANHUine mhando dzese dzemacircuit breaker ane zviratidzo zvakajeka zvekushanda uye nhungamiro dzewaya, ine magadzirirwo ekudzivirira kuchengetedzeka akavakirwa mukati kuti abatsire mainjiniya emagetsi kudzivirira kushanda zvisina kunaka. Kana uine mibvunzo nezvekushanda kwemacircuit breaker, inzwa wakasununguka kutibata kuti uwane kutungamirirwa nenyanzvi.
Nguva yekutumira: Ndira-28-2026
