Mutambo wedunhu unobatwa sei?Null line kuruboshwe kana kurudyi?
General electrician anoudza muridzi kuti aise macircuit breakers kuitira kuchengetedza kuchengetedzeka kwemagetsi epamba.Izvi zvinodaro nekuti muparadzi wedunhu anogona otomatiki kudzima simba kana mutsara wemba watadza, nokudaro kuderedza kurasikirwa netsaona.Asi iwe unoziva here kuti iyo yedunhu inopwanya wired?Iyo yasiyawo null line yekurudyi fire line?Ona zvinotaurwa nemagetsi.
1. Chii chinonzi circuit breaker?
A circuit breaker is a switching device inokwanisa kuvhara, kutakura nekupwanya ikozvino pasi pemamiriro edunhu, uye kutakura nekupwanya ikozvino pasi pemamiriro edunhu asina kujairika (kusanganisira mapfupi edunhu) mukati menguva yakatarwa.Iyo imhando yekuchinja, asi yakasiyana neshanduko yatinowanzo shandisa, iyo yedunhu inotyora ndeyekubvisa ikozvino ye-high-voltage wedunhu, kana sisitimu yedu ikatadza, inogona kukurumidza kugura iyo yazvino, kuitira kudzivirira zvakakomba. kuvandudzwa kwemamiriro ezvinhu, kuchengetedza zvinhu zvevanhu.Chinhu chakanaka chekuchengetedza chidziviriro.
Kushandisa circuit breaker kunoita kuti hupenyu hwedu huve nyore, zvishoma nezvishoma muhupenyu hwevanhu, kutiunzire hupenyu hwakachengeteka.
2. Kuruboshwe kusina, moto wekurudyi
Handina kuziva zvazvaireva panguva yokutanga.Zvishoma nezvishoma, sezvandinodzidza zvakawanda, ndakasvika pakuziva kuti iyo inonzi "kuruboshwe kusina, moto wekurudyi" ingori socket order - yakatarisana nejeki, jack yekuruboshwe ndiyo null line, jack yekurudyi ndiyo tambo yemoto, ndizvo zvose.
Socket mu wiring, inogona kusasiiwa isina moto kurudyi.Mamwe materminal anorongedzerwa akatwasuka, asi kana watarisana nawo (kuseri kwesoketi), iwo ari mune yakatarisana marongero ezvigadziko.Mamwe materminal akarongwa kureba, tisingatauri kuruboshwe nekurudyi.
saka, zvichiri kudikanwa kutevedzera iyo label ye terminal post paunenge uchibatanidza waya.Kana yakanyorwa neL, tambo yemoto ichabatanidzwa.N inomiririra null line.
3. Wiring nzvimbo ye null line uye null line
Yese yekuvuza switch inofanirwa kubatana kune null line.Kana pasina null line, imhaka yekubatana kusina kunaka.Imba yekuvuza switch, zvichienderana nehuwandu hwematanda, inogona kupatsanurwa mumhando mbiri: 1P kuvuza uye 2P kuvuza.
Ese ma switch ane maviri seti ematerminal (imwe mukati uye imwe kunze inoverengerwa seti imwe).Rimwe remapoka maviri emagetsi ekupedzisira ane leakage ye1P ane mucherechedzo weN. Kana wiring, null lines inofanira kubatanidzwa kune iri boka rezvigaro zvekupedzisira uye rimwe boka remitsara yemoto.Usave nehanya neruboshwe null kurudyi moto.Iyo null mutsara uye mutsara wemoto inotungamira yekuchinja haina kugadzika, uye kurongeka kwematerminals emhando dzakasiyana uye mhando dzakasiyana.Kana wiring, chinzvimbo cheiyo N terminal ichavepo.
Iko hakuna kuzivikanwa kwemabhuraki maviri e2P kuvuza, izvo zvinoreva kuti isu tinogona kusarudza iyo wiring order nekupokana.Nekudaro, zvinowanzo kurudzirwa kuti utaure kune iyo 1P kuvuza wiring kutevedzana mubhokisi rekugovera kuti ive nechokwadi chekutevedzana kwewaya pakati pezviviri.Saka iyo mutsara kuronga ichave iri nani kutaridzika uye yakanakira kugadzirisa mune ramangwana.
Hazvina mhosva kuti rudzii rwekuvuza switch, usabatanidza null line kune switch.
4. Mutambo wedunhu unofanirwa kubatanidzwa sei?
Ngatitorei 2P yedunhu redunhu semuenzaniso, takatarisana nemupunzi wedunhu semufananidzo unotevera.
Iwo materminal maviri ekumusoro anowanzo ari anouya uye maviri ezasi materminal ndiwo anobuda.Sezvo iyi iri 2P yedunhu breaker, inogona kudzora kuvhurwa nekuvhara kwemaseketi maviri.Kana paine capital N kune rumwe rutivi rweterminal, iyi terminal yakabatana ne zero line, uye imwe yacho yakabatana nemoto mutsara.
Muchokwadi, mabreaker breakers seaya ari pamusoro anowanzo ane simba kwazvo (kune simba rinoshandiswa neimba).Kuti uve akachengeteka, akati wandei 1P edunhu mabreak anozowedzerwa kumashure kwedunhu.Masekita mabreaker akadaro kazhinji ane simba rakaderera.
Kune wedunhu rinotyora re1P, zvakanaka kuti ubatanidze zvakananga waya mhenyu kubva ku2P wedunhu breaker.Ehe, kune yedunhu breaker ye2P, unogona kuramba uchibatanidza mutsara wemoto uye null line.Kana pasina chiratidzo cheN pane chinoputika chedunhu, inowanzoteverwa nemoto wekuruboshwe uye kurudyi null.
5. Kana waya ikadzoserwa shure, chii chichaitika?
Batanidza iyo isiriyo null mutsara uye mutsara wemoto we 2P wedunhu breaker uye 2P leakage yedunhu breaker haisi dambudziko rakakura.Izvo zvinongoitika ndezvekuti zvinoita kunge zvisiri zvipfupi, kusagadzikana pakugadzirisa nekuti nyanzvi inoda kutsvagazve null line uye fire line.
Kana yadimburwa, 1P+N yedunhu rinotyora uye 1P kuvuza yedunhu rinotyora rinogona kungobvisa waya yemoto----mutsetse wakabatana kune isina kucherechedzwa terminal.Kana iyo null mutsara uye mutsara wemoto wakabatana zvisizvo, kana iyo yedunhu inotyora ikabviswa, null line inobviswa.Kunyangwe pasina ikozvino mudunhu, pachine voltage.Kana munhu akaibata, anorohwa nemagetsi.
Iyo null mutsara we1P wedunhu breaker iri pane isina kuburitswa, saka hazvisi nyore kubatanidza zvisizvo.Mhedzisiro yekubatana kusiri iko kwe1P yedunhu rebreaker yakafanana neye reverse yekubatanidza null line uye moto mutsetse we1P+N wedunhu breaker.
Nguva yekutumira: Jun-28-2022