Kuphatikiza kwabwino kwambiri kwa chitetezo cha kutayikira ndi chitetezo cha overcurrent

KumvetsetsaZotsalira Zamakono Zamakono Zoswa Dera: Gawo Lofunika Kwambiri pa Chitetezo cha Magetsi

Mu dziko la chitetezo chamagetsi, ma residual current circuit breakers (RCBs) amachita gawo lofunika kwambiri poteteza anthu ndi katundu ku zoopsa za zolakwika zamagetsi. Zipangizozi, zomwe nthawi zambiri zimatchedwa residual current devices (RCDs) kapena residual current circuit breakers (RCCBs), zimapangidwa kuti zizindikire kusalingana kwa magetsi ndikutsegula dera pamene vuto lapezeka. Kumvetsetsa momwe ma RCB amagwirira ntchito komanso chifukwa chake ndi ofunikira kungathandize eni nyumba ndi mabizinesi kuonetsetsa kuti malo amagetsi ndi otetezeka.

Kodi chosinthira magetsi chotsalira ndi chiyani?

Chotsekereza magetsi chotsalira ndi chipangizo chamagetsi chomwe chimayang'anira magetsi mu dera. Chimayerekeza nthawi zonse magetsi omwe akuyenda mu waya wamoyo ndi magetsi omwe akubwera kuchokera ku waya wa neutral. Muzochitika zachizolowezi, magetsi awa ayenera kukhala ofanana. Komabe, ngati vuto lachitika, monga dera lalifupi kapena munthu wakhudza mwangozi waya wamoyo, mphamvu zina zimatha kutuluka pansi. Kusalinganika kumeneku kumayambitsa dera lotsalira kuti litsegule dera, zomwe zimaletsa kugwedezeka kwa magetsi kapena moto.

Kodi ma residual current breakers amagwira ntchito bwanji?

Ma residual current breakers amagwira ntchito motsatira mfundo ya differential current. Pali transformer mkati mwa chipangizocho yomwe imamva kuti current ikuyenda kudzera mu mawaya otentha ndi osalowerera. Ngati kusiyana pakati pa ma current awa kupitirira malire omwe adakhazikitsidwa kale (nthawi zambiri 30 mA kuti zitsimikizire chitetezo cha munthu), residual current breaker imagwa, ndikudula mphamvu mkati mwa ma milliseconds. Kuchitapo kanthu mwachangu kumeneku ndikofunikira kuti tipewe kuvulala kwambiri kapena kufa chifukwa cha magetsi.

Mitundu ya zotsalira za ma circuit breakers

Pali mitundu ingapo ya ma residual current circuit breakers, iliyonse ili ndi cholinga chake:

1. Mphamvu Yosinthira Mphamvu: Mtundu uwu ndi wa ma circuits omwe ali ndi mphamvu yosinthira mphamvu (AC) yokha. Ndi mtundu wofala kwambiri womwe umagwiritsidwa ntchito m'nyumba.

2. Mtundu A: RCB iyi imazindikira zolakwika za AC ndi pulsating direct current (DC) ndipo ndi yabwino kwambiri pa ma circuits okhala ndi zida zamagetsi, monga makompyuta ndi ma solar inverters.

3. Mtundu B: Ma RCB a Mtundu B amapangidwira ma circuits omwe amatha kunyamula magetsi oyenda bwino ndipo nthawi zambiri amagwiritsidwa ntchito m'mafakitale, makamaka omwe amagwiritsa ntchito magwero a mphamvu zongowonjezwdwanso.

4. Mtundu wa F: Mtundu uwu umaphatikiza mawonekedwe a Mtundu A ndi Mtundu B, kuteteza ku mafunde otsala a AC ndi DC, ndipo ndi woyenera kugwiritsidwa ntchito m'njira zosiyanasiyana.

Kufunika kwa ma residual current circuit breakers

Kufunika kwa ma residual current breakers sikunganyalanyazidwe. Ndi ofunikira kwambiri pakukweza chitetezo chamagetsi m'nyumba, m'malo ogwirira ntchito komanso m'nyumba za anthu onse. Ma residual current breakers amateteza miyoyo mwa kupewa kugwedezeka kwamagetsi, makamaka m'malo okhala ndi madzi, monga m'bafa ndi m'khitchini. Amathandizanso kupewa moto wamagetsi womwe umayambitsidwa ndi mawaya kapena zida zogwirira ntchito zolakwika.

Kuyesa ndi kusamalira RCB nthawi zonse n'kofunika kwambiri kuti zitsimikizire kuti ndi yodalirika. Mayunitsi ambiri ali ndi batani loyesera kuti wogwiritsa ntchito azitha kuwona momwe imagwirira ntchito. Ndikofunikira kuti RCB iyesedwe kamodzi pamwezi kuti iwonetsetse kuti ikugwira ntchito bwino.

Powombetsa mkota

Pomaliza, ma residual current circuit breakers ndi gawo lofunika kwambiri la machitidwe amagetsi amakono, omwe amapereka chitetezo chofunikira ku zoopsa zamagetsi. Pomvetsetsa momwe ma residual current circuit breakers amagwirira ntchito komanso mitundu yawo yosiyanasiyana, anthu ndi mabizinesi amatha kupanga zisankho zolondola pankhani ya chitetezo chamagetsi awo. Kuyika ndalama mu ma residual current circuit breakers sikuti kumateteza moyo wokha, komanso kumateteza katundu, zomwe zimapangitsa kuti zikhale gawo lofunikira pa kukhazikitsa magetsi kulikonse.