KunzwisisaRCCBs: Chikamu Chinokosha Chekuchengetedzwa Kwemagetsi
Munyika yekuchengetedzwa kwemagetsi, residual current circuit breaker (RCCB) chishandiso chakakosha chakagadzirirwa kuchengetedza vanhu nepfuma kubva kunjodzi dzemagetsi. Sezvatinoongorora zvakadzama kuoma kweRCCB, zvinova pachena kuti chishandiso ichi chinoita basa rakakosha mukuisa magetsi emazuva ano kuti chive nechokwadi chekuchengetedzeka uye kuvimbika.
Chii chinonzi RCCB?
RCCB, inozivikanwawo semudziyo wemagetsi unoramba uripo (RCD), mudziyo wemagetsi unobvisa circuit kana ukaona kusawirirana pakati pewaya dziripo nedzisina kusimba. Kusawirirana uku kunogona kukonzerwa nezvikonzero zvakasiyana-siyana, zvakaita sekubatanidza waya zvisina kunaka, kukundikana kwekudzivirira kupisa, kana mumwe munhu akabata waya iripo netsaona. RCCB inoramba ichitarisa magetsi ari kufamba mucircuit, uye kana ikaona magetsi ari kubuda (kazhinji anosvika 30 mA), inodonha uye inodzima magetsi mukati memamirisekonzi. Mhinduro iyi yekukurumidza yakakosha mukudzivirira kuvhunduka kwemagetsi uye kuderedza njodzi yemoto wemagetsi.
RCCB inoshanda sei?
Nheyo yekushanda yeRCCB yakavakirwa panheyo ye differential current. Ine iron core nema coil maviri: rimwe rewaya iri mhenyu uye rimwe rewaya isina kusimba. Mumamiriro ezvinhu akajairwa, ma currents anoyerera nepawaya mbiri akaenzana uye ma magnetic fields anogadzirwa nema coils anodzimana. Zvisinei, kana paine chikanganiso, senge leakage current inoyerera ichienda pasi, chiyero chinoparadzwa, zvichikonzera mutsauko mu magnetic fields. Kusawirirana uku kunoita kuti RCCB igumbuke, ichityora circuit uye ichidzivirira njodzi inogona kuitika.
Mhando dzeRCCB
Kune mhando dzakasiyana dzeRCCB, imwe neimwe iine chinangwa chayo. Mhando dzakajairika dzinosanganisira:
1. 2-pole RCCB: Inoshandiswa mumasekete echikamu chimwe chete, anowanzo kuwanikwa munzvimbo dzekugara.
2. 4-pole RCCB: Yakagadzirirwa maseketi ane zvikamu zvitatu, anoshandiswa zvakanyanya mumaindasitiri nemabhizimisi.
3. Rudzi rweAC RCCB: inoona alternating current (AC) residual current.
4. Rudzi A RCCB: inogona kuona AC uye DC residual current inoputika, yakakodzera maseketi emidziyo yemagetsi.
Kukosha kweRCCB mukuchengetedzwa kwemagetsi
Kukosha kwemaRCCB hakufanirwe kutaurwa zvakanyanya. Akakosha pakuona kuchengetedzeka kwemidziyo yemagetsi mudzimba, mumahofisi nemumaindasitiri. Nekupa dziviriro kubva mukuvhunduka kwemagetsi, maRCCB anobatsira kuchengetedza hupenyu, kunyanya munzvimbo dzakanyorova dzakadai sedzimba dzekugezera nemakicheni. Pamusoro pezvo, anoita basa rakakosha mukudzivirira moto wemagetsi unokonzerwa newaya dzisina kunaka kana michina.
Kuisa uye Kugadzirisa
Kuti zvishande zvakanaka, maRCCB anofanira kuiswa nenyanzvi yemagetsi inonzwisisa zvinodiwa nehurongwa hwemagetsi. Kuongororwa nekugadzirisa nguva dzose kwakakoshawo kuti michina ishande zvakanaka. MaRCCB mazhinji ane bhatani rekuyedza rinobvumira mushandisi kugara achiongorora mashandiro ayo. Zvinokurudzirwa kuti RCCB iitwe kanenge kamwe chete pamwedzi kuti ive nechokwadi chekuti iri kushanda zvakanaka.
Muchidimbu
Muchidimbu, residual current circuit breaker (RCCB) chinhu chakakosha muhurongwa hwekuchengetedza magetsi. Nekukwanisa kwayo kuona nekupindura kusawirirana kwemagetsi, chishandiso chakakosha mukudzivirira hupenyu nepfuma kubva kunjodzi dzemagetsi. Kukosha kweRCCBs kucharamba kuchikura sezvo tekinoroji ichifambira mberi uye masisitimu emagetsi achiwedzera kuoma, zvichiratidza kudiwa kwekuziva nekunzwisisa mudziyo uyu unokosha wekuchengetedza. Ingave munzvimbo dzekugara, dzebhizinesi kana dzemaindasitiri, RCCBs inoramba iri musimboti wekuchengetedza magetsi, ichivimbisa rugare rwepfungwa kune vashandisi kwese kwese.
Nguva yekutumira: Kurume-21-2025