Momwe mungasankhire ma A, B, C, OR D ophwanyika pang'ono MCB

Pali zinayi zapadziko lonse za ulendo wazazing'ono circuit breakers: A, B, C, ndi D. Ndiye timasankha bwanji?

(1)TYPE Wowononga dera: 2 nthawi zomwe zidavotera pano, zomwe sizimagwiritsidwa ntchito kawirikawiri, zomwe zimagwiritsidwa ntchito poteteza semiconductor (nthawi zambiri gwiritsani ntchito fuse);Otchedwa chiwerengero cha nthawi panopa, ndi mmene panopa, kupirira nthawi yosinthira sikuyenda, makhalidwe ake ndi kupewa mmene panopa.

Kusankhidwa kwa chipangizo chodumphadumpha chalow-voltage circuit breaker: kugunda chipangizo mtundu wawowononga deraili ndi chipangizo chodumphira mopitilira muyeso, chipangizo chodumphira chapansi pamagetsi, chida chodumpha, ndi zina. Chipangizo chodumpha mopitilira muyeso chingathenso kugawidwa m'chida chodumpha mochulukira komanso chida chodumphira chanthawi yayitali, ndipo chimakhala ndi kuchedwa kwanthawi yayitali, kuchedwa pang'ono, malo pompopompo, kupindika. Chipangizo chodumphira ndichomwe chimagwiritsidwa ntchito kwambiri.Zomwe zikuchitika panopa pa chipangizo chodumphadumpha zimatha kukhazikitsidwa kapena kusinthidwa, nthawi zambiri pozungulira kapena kusintha lever.Electromagnetic overcurrent tripping device ili ndi ziwiri zomwezo zokhazikika komanso zosinthika.Chipangizo chamagetsi chamagetsi chodutsa nthawi zambiri chimatha kusintha.

Kutha kuthyoka kwa awowononga deraamatanthauza kutha kupirira pazipita lalifupi dera panopa, kotero kusweka mphamvu ya rotary wosweka kuyenera kukhala wamkulu kuposa yochepa dera panopa zida zake chitetezo.Overcurrent ulendo malinga unsembe ndipo akhoza kugawidwa mu unsembe okhazikika kapena gawo, anaikira unsembe wa fakitale ulendo ndi dera wosweka ndi kukonzedwa mu organic lonse, kamodzi atachoka oveteredwa panopa ulendo chosinthika, ndi yodziyimira pawokha unsembe ulendo monga wosweka dera anaika zigawo, akhoza chosinthika, kusinthasintha ndi wamphamvu.

Mtundu wanthawi yomweyo: 0.02s, pakutetezedwa kwafupipafupi;

Mtundu wochedwetsa pang'ono: 0.1-0.4s, yogwiritsidwa ntchito pafupipafupi, chitetezo chokwanira;

Kuchedwa kwanthawi yayitali: zosakwana 10S, zomwe zimagwiritsidwa ntchito poteteza katundu wambiri;

Panopa ambiri ntchitoZithunzi za DZkusintha kwa mpweya (chophwanyika chaching'onondi chitetezo kutayikira), specifications wamba ndi: C16, C25, C32, C40, C60, C80, C100, pakati pawo C akuimira kuchotsa khalidwe panopa ndi C, ndicho kulumpha panopa, mwachitsanzo C20 akufotokoza kulumpha panopa ndi 20A, ulendo khalidwe ndi C curve, ikani chotenthetsera chamadzi cha 3500W kuti musankhe chowotcha cha C20 nthawi zambiri, ikani chotenthetsera chamadzi cha 6500W kufuna kugwiritsa ntchito chowotcha cha C32.

Circuit breaker imagwiritsidwa ntchito kuteteza waya ndikuletsa moto, motero malinga ndi kukula kwa waya wosankha m'malo motengera mphamvu yakusankha magetsi.Ngati wowononga dera ndi wamkulu kwambiri, sangateteze waya.Waya akadzaza, wophwanya dera sangalumphebe, zomwe zimabweretsa zoopsa zobisika kuchitetezo chanyumba.

1.5 lalikulu waya ndi C10 switch

Waya 2.5 lalikulu ndi C16 kapena 20 switch

Waya 4 lalikulu ndi C25 switch

6 lalikulu waya ndi C32 switch

Zazosinthira mpweyaamagwiritsidwa ntchito pama motors okhala ndi katundu, mawonekedwe amtundu wa D ayenera kusankhidwa kuti apewe kuyambika kwa injini yoyambira yomwe ndi yokwera nthawi 5-8.

(2) B mtundu dera wosweka: 2-3 nthawi oveteredwa panopa, kawirikawiri ntchito koyera resistive katundu ndi otsika-voteji kuyatsa dera, nthawi zambiri amagwiritsidwa ntchito pogawa nyumba bokosi, kuteteza zipangizo zapakhomo ndi chitetezo munthu, ntchito zochepa pakali pano.

(3) C mtundu wosweka dera: 5-10 nthawi oveteredwa panopa, ayenera kukhala mu masekondi 0.1 kuchoka, makhalidwe ophwanya dera ndi ambiri ntchito, nthawi zambiri ntchito kuteteza mizere yogawa ndi mizere kuyatsa ndi apamwamba kusintha panopa.

(4) D mtundu wosweka dera: 10-20 nthawi oveteredwa panopa, makamaka ntchito magetsi yomweyo malo aakulu panopa, banja wamba sagwiritsidwa ntchito mochepa, oyenera kukhudzika kwambiri katundu ndi mphamvu yaikulu dongosolo panopa, nthawi zambiri ntchito kuteteza zida zokhala ndi mphamvu yayikulu.