Kunzwisisa Vaparidzi veDunhu Vanoshandiswa Nenguva Dzose: Gwaro Rakazara
Munyaya dzekuchengetedzwa kwemagetsi, midziyo yemagetsi inosara inonzi circuit breaker-type residual current devices (RCDs) inoita basa guru mukudzivirira vanhu nepfuma kubva kunjodzi dzemagetsi. Chinyorwa chino chinotarisa mabasa, kukosha, uye mashandisirwo eRCDs dzemagetsi dzinorasa magetsi, nechinangwa chekubatsira vaverengi kunzwisisa zvakakwana mudziyo uyu unokosha.
Chii chinonzi residual current circuit breaker (RCD)?
Chinobvisa magetsi (RCD) chishandiso chekuchengetedza chakagadzirirwa kudzivirira kuvhunduka kwemagetsi nemoto wemagetsi unokonzerwa nekukanganisa kwepasi. Chinoshanda nekutarisa magetsi ari mudunhu. Kana chikaona kusawirirana kwemagetsi ari pakati pewaya iri mhenyu (phase) newaya isina kusimba, zvichiratidza kuti magetsi ari kubuda muwaya yepasi, RCD inokurumidza kubvisa magetsi mudunhu. Mhinduro iyi inokurumidza—inowanzoitwa mukati me30 milisekonzi—inodzivirira zviitiko zvidiki kuti zvisanyanya kuipa kuita tsaona dzinouraya.
Ndeupi musiyano uripo pakati pechinopwanya chakajairwa neRCD breaker?
Musiyano mukuru uripo pakati peRCD necircuit breaker uri muchinangwa chavo: RCD: Inodzivirira vanhu kubva mukuvhunduka kwemagetsi kana kubatwa nemagetsi nekuona magetsi ari kubuda. Circuit Breaker: Inodzivirira masisitimu emagetsi nemidziyo nekucheka simba panguva yemagetsi akawandisa kana mapfupi.
Ndeipi musimboti wekushanda kwemudziyo wemagetsi unoshandiswa (RCD) mucircuit breaker?
Pfungwa yekushanda kwe residual current circuit breaker (RCD) yakavakirwa papfungwa ye differential current. Mumamiriro ezvinhu akajairwa, current inoyerera nepawaya iri mhenyu inofanira kuenzana ne current inoyerera nepawaya isina kusimba. Zvisinei, kana paine chikanganiso, senge electromagnetic shock kana kukuvara kwemagetsi, current imwe inogona kudonhedza mvura ichienda pawaya yepasi. RCD inoona kusawirirana uku kwe current uye inodonha kuti ibvise circuit, nokudaro ichibvisa simba remagetsi.
Zvishandiso zvemazuva ano zvakasara (RCDs) zvinouya muzvikamu zvakasiyana-siyana, zvinowanzo tangira pa30 mA yekudzivirira munhu to 100 mA kana 300 mA yekudzivirira motoKuyera kwakaderera kunoreva kuti mudziyo wacho unonyanya kunzwa kuyerera kwemvura, zvichiita kuti maRCD akoshe munzvimbo dzinonyanya kukoshesa kuchengetedzeka kwemunhu.
Kukosha kweVasara veMasaisai eDunhu reMasaisai
Kukosha kwemidziyo inoshandiswa nemagetsi (RCD) muma circuit breakers hakufaniri kufuratirwa. Zvakakosha pakudzivirira tsaona dzemagetsi dzinogona kukonzera kukuvara kwakanyanya kana kufa. Nhamba dzinoratidza kuti maRCD anogonakuderedza njodzi yekuvhundutswa nemagetsi kusvika ku90%Izvi zvinoita kuti zvive chikamu chakakosha chemagetsi edzimba, emabhizimisi, uye emaindasitiri.
Pamusoro pekuve nechokwadi chekuchengetedzeka kwemunhu, zvishandiso zvemagetsi zvinosara (RCDs) zvinodzivirirawo kuiswa kwemagetsi kubva mukukuvadzwa. Kukanganisa kwemagetsi kunogona kukonzera kupisa zvakanyanya uye moto, zvichikonzera kukuvara kukuru kwepfuma. MaRCD anobatsira kuderedza njodzi idzi nekudzima circuit kana paine kukanganisa, nokudaro achiwedzera hupenyu hwemasisitimu emagetsi nemidziyo.
Kushandiswa kweZvishandiso zvekudzivirira zveResidual Current Breaker
Zvishandiso zvemagetsi zvinosara (RCDs) zvinoshandiswa zvakanyanya munzvimbo dzakasiyana-siyana. Muzvivakwa zvekugara, zvinowanzoiswa mumabhokisi ekuparadzira magetsi kudzivirira maseketi anopa magetsi kumapaketi, mwenje, uye midziyo yekunze. Muzvivakwa zvemabhizinesi, maRCD akakosha pakudzivirira vashandi nevatengi, kunyanya munzvimbo dzine mvura, dzakadai sekicheni nedzimba dzekugezera.
Munzvimbo dzemaindasitiri, zvishandiso zvekudzivirira zvinoshandiswa nemagetsi (RCDs) zvakakosha pakudzivirira michina uye kuchengetedza vashandi vanogona kusangana nenjodzi dzemagetsi. Uyezve, mitemo yemagetsi inowanzoda kuti maRCD aiswe, zvichiita kuti ave chikamu chemazuva ano chemagetsi.
Muchidimbu
Muchidimbu, midziyo yemagetsi inosara (RCDs) imidziyo inokosha zvikuru munyaya dzekuchengetedza magetsi. Inogona kuona nekukasika uye kupindura zvikanganiso zvemagetsi, zvichiita kuti ive chinhu chakakosha mukuchengetedza hupenyu nepfuma. Ingave mudzimba, mabhizinesi, kana munzvimbo dzemaindasitiri, kuisa maRCD emagetsi inosara (circuit breaker) inzira inoshanda inogona kuvandudza kuchengetedzeka uye kuderedza njodzi dzetsaona dzemagetsi. Nekufambira mberi kwetekinoroji, dhizaini nekushanda kwemaRCD zviri kuramba zvichivandudzwa, zvichiita kuti arambe ari pamberi pemhinduro dzekuchengetedza magetsi.
Nguva yekutumira: Mbudzi-26-2025