Kodi DC miniature circuit breaker (MCB) ndi chiyani?
Ntchito za DC MCB ndi AC MCB ndizofanana.Onsewa amateteza zida zamagetsi ndi zida zina zonyamula katundu ku zovuta zambiri komanso zazifupi, ndikuteteza chitetezo chadera.koma mawonekedwe ogwiritsira ntchito AC MCB ndi DC MCB ndi osiyana.Nthawi zambiri zimatengera ngati mphamvu yamagetsi yomwe imagwiritsidwa ntchito ikusinthira madera apano kapena madera omwe akulunjika.Zambiri za DC MCB zimagwiritsa ntchito makina amakono monga mphamvu zatsopano, solar PV, ndi zina zotero. Ma voltages a DC MCB nthawi zambiri amachokera ku DC 12V-1000V.
Kusiyana pakati pa AC MCB ndi DC MCB potengera mawonekedwe akuthupi okha, AC MCB ili ndi malembo a matheminali ngati LOAD ndi LINE pomwe materminal a DC MCB azikhala ndi chizindikiro chabwino (+) kapena choyipa (-) pa terminal yake.
Momwe mungalumikizire DC MCB molondola?
Chifukwa DC MCB ili ndi chizindikiro cha '+' ndi '-' chokha, nthawi zambiri zimakhala zosavuta kulumikiza molakwika.Ngati chowotcha chaching'ono cha DC chilumikizidwa kapena kulumikizidwa molakwika, pamakhala zovuta zomwe zingachitike.Pakachulukirachulukira kapena kuzungulira kwafupipafupi, MCB siyitha kudula mayamwidwe ndikuchotsa arc, izi zitha kupangitsa kuti chowotchacho chiziwotcha.
Chifukwa chake, DC MCB ili ndi chizindikiro cha '+' ndi '-', ikufunikabe kuyika chizindikiro cha dera ndi ma waya, monga momwe zilili pansipa:
Chithunzi cha 2P550VDC
4P 1000VDC
Malinga ndi chithunzi cha mawaya, 2P DC MCB ili ndi njira ziwiri zamawaya, imodzi ili pamwamba imalumikizidwa ndi mitengo yabwino komanso yoyipa, njira ina ndi yolumikizidwa ndi mitengo yabwino komanso yoyipa monga chizindikiro cha '+' ndi '- '.Kwa 4P 1000V DC MCB ili ndi njira zitatu zamawaya, malinga ndi maiko osiyanasiyana ogwiritsira ntchito, kusankha chojambula chofananira cholumikizira mawaya.
Kodi AC MCB imagwira ntchito kumayiko a DC?
Chizindikiro chamakono cha AC chikusintha mosalekeza mtengo wake pa sekondi iliyonse.Mphamvu yamagetsi ya AC imasintha kuchokera ku zabwino kupita ku zoyipa pamphindi iliyonse yamphindi.Arc ya MCB idzazimitsidwa pa 0 Volts, mawaya adzatetezedwa ku mphepo yaikulu.Koma chizindikiro cha DC sichimasinthasintha, chimayenda nthawi zonse ndipo mtengo wamagetsi umangosinthidwa pamene dera likuyenda OFF kapena dera likuchepetsedwa ndi mtengo wina.Apo ayi, dera la DC lidzapereka mtengo wokhazikika wamagetsi pamphindi iliyonse yamphindi.Chifukwa chake, popeza mulibe 0 Volt point m'boma la DC, sizitanthauza kuti AC MCB imagwira ntchito kumayiko a DC.
Nthawi yotumiza: Jul-30-2021