Kodi ma circuit breakers amagwira ntchito bwanji?Kufotokozera mwatsatanetsatane ndondomeko yogwirira ntchito ya ophwanya dera

Kodi ma circuit breakers amagwira ntchito bwanji?Kufotokozera mwatsatanetsatane ndondomeko yogwirira ntchito ya ophwanya dera

Cholakwika chikachitika m'dongosolo, chitetezo cha chinthu cholakwa chimagwira ntchito ndipo wophwanya dera lake amalephera kuyenda, chitetezo cha chinthu cholakwika chimagwira ntchito yodutsa dera loyandikana nalo, ndipo ngati ziloleza, njirayo imatha amagwiritsidwa ntchito kupanga ophwanya madera ogwirizana kumapeto kwakutali nthawi yomweyo.Wiring wokhotakhota amatchedwa chitetezo cha breaker failure.

Nthawi zambiri, gawo lapano lomwe limaweruzidwa ndi kupatukana kwa gawo likugwira ntchito, magawo awiri oyambira amatuluka, omwe amalumikizidwa motsatizana ndi zolumikizira zachitetezo chakunja kuti ateteze kulephera koyambira pomwe mzere, tayi ya basi kapena gawo laling'ono limalephera.

Kodi ntchito za ma circuit breakers ndi ziti

Zophulitsa ma circuit zimagwiritsidwa ntchito makamaka m'mamotor, zosinthira zazikulu komanso malo ochepera omwe nthawi zambiri amathyola katundu.Wowononga dera ali ndi ntchito yophwanya katundu wangozi, ndipo amagwirizana ndi zotetezera zosiyanasiyana zotetezera kuteteza zipangizo zamagetsi kapena mizere.

Zowononga ma circuit nthawi zambiri zimagwiritsidwa ntchito pakuwunikira kocheperako komanso magawo amagetsi, omwe amatha kungodula dera;owononga madera amakhalanso ndi ntchito zambiri monga kuchulukirachulukira komanso chitetezo chafupipafupi, koma pakangokhala vuto ndi katundu kumapeto kwenikweni, kukonza kumafunika.Udindo wa wosweka dera, ndi creepage mtunda wa wosweka dera sikokwanira.

Tsopano pali chowotcha chozungulira chokhala ndi ntchito yodzipatula, yomwe imaphatikiza ntchito za wophwanya wamba ndi chosinthira chodzipatula.Wowononga dera wokhala ndi ntchito yodzipatula amathanso kukhala chosinthira chodzipatula.M'malo mwake, chosinthira chodzipatula nthawi zambiri sichingagwire ntchito ndi katundu, pomwe chotchingira dera chimakhala ndi ntchito zoteteza monga chiwongolero chachifupi, chitetezo cholemetsa, kuperewera kwamagetsi ndi zina zotero.

Kufotokozera mwatsatanetsatane ndondomeko yogwirira ntchito ya ophwanya dera

Chofunikira: Chida chosavuta kwambiri chotetezera dera ndi fusesi.Fuse ndi waya woonda kwambiri, wokhala ndi sheath yoteteza yomwe imalumikizidwa ndi dera.Dera likatsekedwa, zonse zamakono ziyenera kuyenda kudzera mu fuse - zomwe zilipo pa fuseyi ndizofanana ndi zomwe zikuchitika pazigawo zina pamtunda womwewo.Fuseyi imapangidwa kuti iziwombera pamene kutentha kwafika pamlingo winawake.Fuse yowombedwa imatha kupanga mawonekedwe otseguka omwe amalepheretsa kuchuluka kwamagetsi kuwononga mawaya anyumba.Vuto la fusesi ndiloti limagwira ntchito kamodzi kokha.Fuseyo ikawomberedwa, iyenera kusinthidwa ndi ina.Woyendetsa dera amatha kugwira ntchito yofanana ndi fuse, koma angagwiritsidwe ntchito mobwerezabwereza.Malingana ngati zamakono zikufika pamtunda woopsa, zimatha kupanga nthawi yomweyo dera lotseguka.

Mfundo yoyambira yogwirira ntchito: Waya wamoyo muderali umalumikizidwa ndi malekezero onse a switch.Pamene lophimba aikidwa mu ON boma, panopa umayenda kuchokera terminal pansi, kudzera electromagnet, kusuntha contactor, ndi malo amodzi contactor, ndipo potsiriza otsiriza pamwamba.Zamakono zimatha magnetize electromagnet.Mphamvu ya maginito yomwe imapangidwa ndi ma elekitiromagineti imawonjezeka pamene mphamvu ikuwonjezeka, ndipo ngati panopa ikuchepa, mphamvu ya maginito imachepa.Pamene panopa kudumphira pamlingo woopsa, maginito amagetsi amapanga mphamvu ya maginito yokwanira kukoka ndodo yachitsulo yomwe imamangiriridwa ku mgwirizano wosinthira.Izi tilts kusuntha contactor kutali contactor malo amodzi, kuswa dera.Pakali panonso imasokonezedwa.Mapangidwe a bimetal bimetal amachokera ku mfundo yomweyi, kusiyana kwake ndikuti m'malo mopatsa mphamvu maginito amagetsi, mizere imaloledwa kupindika paokha pansi pamakono apamwamba, omwe amayendetsa kugwirizana.Zowononga zina zimadzazidwa ndi zophulika kuti zichotse chosinthira.Mphamvu ikadutsa mulingo wina, zida zophulika zimayaka, zomwe zimayendetsa pisitoni kuti zitsegule chosinthira.

Kuwongoleredwa: Zophulitsa zotsogola kwambiri zimachotsa zida zosavuta zamagetsi zomwe zimakonda zamagetsi (zipangizo za semiconductor) kuti ziwunikire momwe zilili pano.A ground fault circuit interrupter (GFCI) ndi mtundu watsopano wophwanya dera.Wowononga derali sikuti amangoletsa kuwonongeka kwa mawaya m'nyumba, komanso amateteza anthu kuti asawonongeke ndi magetsi.

Mfundo yowonjezereka yogwirira ntchito: GFCI imayang'anira nthawi zonse zomwe zikuchitika pamawaya osalowerera ndale komanso amoyo muderali.Zonse zikayenda bwino, magetsi amayenera kukhala ofanana ndendende pa mawaya onse awiri.Waya wamoyo ukangokhazikika (monga ngati wina wakhudza mwangozi waya wamoyo), mawaya omwe ali pawaya yamoyo adzakwera mwadzidzidzi, koma waya wosalowererapo sadzatero.GFCI nthawi yomweyo imatseka derali pozindikira vutoli kuti apewe kuvulala kwamagetsi.Chifukwa GFCI siyenera kudikirira kuti ifike pamlingo wowopsa kuti ichitepo kanthu, imachita mwachangu kuposa ophwanya achikhalidwe.