Umqhekezi weSekethe yeTyala eliMolded: Ukuqinisekisa uSasazo lwaMandla oluKhuselekileyo noluthembekileyo

Abaphuli beeSekethe zeTyala eziBunjiweyo

A i-molded case circuit breaker (MCCB)luhlobo lwe-circuit breaker olusetyenziswa kakhulu kukhuseleko lombane kwiindawo zoshishino nezorhwebo ngenxa yokuba lukwazi ukubonelela ngokhuseleko oluthembekileyo nolukhuselekileyo kwi-overcurrent, short circuits kunye nezinye iingxaki zombane. Kweli nqaku, siza kujonga ngokunzuluIiMCCBkwaye nixoxe ngeempawu zazo, imigaqo yokusebenza, ulwakhiwo, kunye nokusetyenziswa kwazo.

Iimpawu zeMCCB

Ii-MCCB zenzelwe imisebenzi eliqela enceda ekukhuseleni iinkqubo zombane ngendlela ekhuselekileyo nethembekileyo. Ezinye zeempawu eziphambili ze-MCCB ziquka:

• Umthamo ophezulu wokuqhekeza:Abaphuli beesekethe zetyala elibunjiweyoziyakwazi ukwaphula imitha yamandla ukuya kuthi ga kumawaka ee-ampere, nto leyo ezenza zibe zilungele ukusetyenziswa kwamandla aphezulu.
• Indlela yokuhamba ngemagnethi eshushu:Abaphuli beesekethe zetyala elibunjiweyosebenzisa indlela yohambo lwe-thermal-magnetic ukuze ubone kwaye uphendule kwi-overcurrent kunye ne-short circuits. Izinto ze-thermal trip zisabela kwi-overloads, ngelixa izinto ze-magnetic trip zisabela kwi-short circuits.
• Ulungiselelo lohambo oluhlengahlengiswayo: Ii-MCCB zinelungiselelo lohambo oluhlengahlengiswayo, oluvumela ukuba zibekwe kwinqanaba elifanelekileyo lesicelo esifunekayo.
• Uluhlu olubanzi lobukhulu besakhelo: Ii-MCCB ziyafumaneka ngobukhulu besakhelo obahlukeneyo, nto leyo evumela ukuba zisetyenziswe kwiindlela ezahlukeneyo zokusebenza. Umgaqo wokusebenza we-molded case circuit breaker Umgaqo wokusebenza we-MCCB usekelwe kwindlela yokutshiza nge-thermal-magnetic. I-thermal trip element iyaziva ubushushu obuveliswa kukuhamba kombane kwisekethe kwaye iyatshiza i-circuit breaker xa umbane udlula umlinganiselo wohambo. I-magnetic trip element iyaziva intsimi ye-magnetic eveliswa yi-short circuit kwisekethe, itshiza i-circuit breaker phantse kwangoko. Ulwakhiwo lwe-molded case circuit breaker
• I-MCCB inendlu yeplastiki ebunjiweyo egcina indlela yokuhamba, izixhobo zokunxibelelana kunye nezixhobo zokuthwala umbane.
• Ezi contacts zenziwe ngezinto eziqhuba kakhulu ezifana ne copper, ngelixa indlela yokuhamba ine bimetallic strip kunye ne magnetic coil.

Ukusetyenziswa kwe-MCCB

Ii-MCCB zisetyenziswa kakhulu kwizicelo ezahlukeneyo ezifana nezi:

• Inkqubo yokusasazwa kwamandla
• Iziko loLawulo lweeMoto
• Oomatshini bemizi-mveliso
• Iitransformer
• Iseti yejenereyitha

ukuququmbela

Ii-molded case circuit breakers zizixhobo ezithembekileyo nezisebenzayo zokukhusela umbane. Ukwakhiwa kwazo kunye neempawu zazo zenza ukuba zilungele ukusetyenziswa kwiindlela ezahlukeneyo zokusebenza ezifana nee-transformers, iinkqubo zokusasazwa kombane, kunye namaziko olawulo lweemoto. Indlela yazo yokuhamba nge-thermal-magnetic, amandla aphezulu okuphuka kunye noseto lokuhamba oluhlengahlengiswayo zizenza zibe lukhetho oludumileyo lokukhusela umbane kwiindawo zorhwebo nezoshishino.