KunzwisisaMCBsuyeRCCBs: Zvikamu Zvakakosha zveKuchengetedzwa kweMagetsi
Kuchengetedzeka kwakakosha pakuisa magetsi. MaMinitary circuit breakers (MCBs) nemaResidual current circuit breakers (RCCBs) zvinhu zviviri zvakakosha pakuona kuchengetedzeka kwemagetsi. Midziyo iyi miviri ine mashandisirwo akasiyana asi inowanzo shandiswa pamwe chete kupa dziviriro yakakwana kubva kumatambudziko emagetsi. Chinyorwa chino chinoongorora mashandiro, misiyano, uye mashandisirwo emaMinitary circuit breakers (MCBs) nemaResidual current current circuit breakers (RCCBs), zvichiratidza kukosha kwawo mumagetsi emazuva ano.
Chii chinonzi MCB?
Chinopwanya dunhu diki (MCB) iswichi inongoerekana yashandiswa kudzivirira macircuit emagetsi kubva pakuwanda kwemagetsi uye ma short circuit. Kana magetsi ari kufamba nedunhu akadarika muganho wakatarwa, MCB inodonha, ichikanganisa kufamba kwemagetsi. Izvi zvinodzivirira kukuvara kunogona kuitika kumidziyo yemagetsi uye zvinoderedza njodzi yemoto inokonzerwa nekuwaya kwemagetsi zvakanyanya.
MaMinitary circuit breakers (MCBs) anoongororwa kuti ashandise magetsi zvichienderana nekukwanisa kwawo kutakura magetsi, anowanzo tangira pa6A kusvika pa63A. Akagadzirwa kuti agadziriswe nemaoko mushure mekugumburwa, isarudzo iri nyore kune masisitimu emagetsi emumba nemabhizimisi. Akakosha pakudzivirira masisitimu emagetsi ega ega, akadai semwenje, kudziyisa, uye maburi emagetsi, zvichiita kuti kutadza kweseti kamwe chete kusakanganisa sisitimu yese yemagetsi.
Chii chinonzi RCCB?
Muchina wekugadzirisa magetsi unonzi residual current breaker (RCCB), unozivikanwawo semudziyo wemagetsi unonzi residual current device (RCD), wakagadzirirwa kudzivirira zvikanganiso zvepasi uye kuvhunduka kwemagetsi. Unoona kusawirirana pakati pema conductor ari mupenyu neeasina kusimba, izvo zvinogona kuitika nekuda kwekutadza kupinza magetsi kana kusangana netsaona nezvikamu zviri mupenyu, zvichiita kuti magetsi adonhe pasi. Kana kusawirirana uku kwaonekwa, RCCB inogumbura uye inobvisa circuit, zvichideredza zvakanyanya njodzi yekuvhunduka kwemagetsi nemoto.
MaRCCB anowanikwa mumhando dzakasiyana-siyana dzezviyero zviripo parizvino, kazhinji kubva pa30mA yekudzivirira munhu kusvika pa100mA kana 300mA yekudzivirira michina. Kusiyana nemaMCB, maRCCB haape dziviriro inorema kana yepfupi, saka anowanzo shandiswa pamwe chete nemaMCB mukuisa magetsi.
Misiyano mikuru pakati peMCB neRCCB
Kunyange zvazvo maMCB neRCCB ese ari maviri akakosha pakuchengetedzwa kwemagetsi, ane mabasa akasiyana:
1. Rudzi rweDziviriro: MCB inodzivirira kubva pakuzara kwemagetsi uye kupfupika kwemhepo nepo RCCB inodzivirira kubva pakukanganisa kwenyika uye kuvhunduka kwemagetsi.
2. Maitiro Ekushanda: MaMinitary Circuit Breakers (MCBs) anoshanda zvichienderana nemazinga emagetsi, achigumburwa kana magetsi adarika muganho wakatarwa. MaResidual Current Circuit Breakers (RCCBs) anoshanda zvichienderana nekusawirirana kwemagetsi, achigumburwa kana paine musiyano pakati pemagetsi aripo uye asina kusimba.
3. Kugadzirisazve: MCB inogona kugadziriswazve nemaoko mushure mekugumburwa, nepo RCCB ingangoda kugadziriswazve nemaoko mushure mekunge dambudziko ragadziriswa.
Kushandiswa kweMCB neRCCB
Munzvimbo dzekugara nedzekutengeserana, ma "miniature circuit breakers" (MCBs) nema "residual current circuit breakers" (RCCBs) anowanzo shandiswa pamwe chete kuvaka sisitimu yekudzivirira magetsi yakasimba. Semuenzaniso, mumba mese, ma "MCBs" anogona kuiswa mumagetsi nemagetsi, nepo ma "RCCBs" anogona kushandiswa munzvimbo dzine njodzi huru dzakadai sedzimba dzekugezera nekicheni, uko mukana wekuti magetsi avhunduke wakakwira.
Mukushandiswa kwemaindasitiri, maMCB neRCCB zvakakosha pakudzivirira michina nemidziyo kubva kumatambudziko emagetsi, kuona kuti mashandiro akachengeteka uye kuderedza nguva yekushanda.
Mukupedzisa
Muchidimbu, ma miniature circuit breakers (MCBs) nema residual current circuit breakers (RCCBs) zvikamu zvakakosha zvemagetsi ekuchengetedza. Ma MCBs anodzivirira kubva pakuwanda kwemagetsi uye ma short circuit, nepo ma RCCBs anodzivirira kubva pakukanganisa kwevhu uye kuvhunduka kwemagetsi. Kunzwisisa mashandiro uye mashandisirwo emidziyo iyi kwakakosha kune chero munhu ari kuita basa rekuisa kana kugadzirisa magetsi. Nekubatanidza ma MCBs neRCCBs, tinogona kugadzira nzvimbo yemagetsi yakachengeteka, tichidzivirira vanhu nepfuma kubva kunjodzi dzemagetsi.
Nguva yekutumira: Nyamavhuvhu-19-2025