Zimelelani imingcele ku-MCB?

Ama-circuit breaker amancane (I-MCB) zisetshenziswa kakhulu ukuvikela amasekethe kumasekethe amafushane kanye nokulayisha ngokweqile, futhi zingasetshenziswa nasezinhlelweni zokusabalalisa amandla okukhanyisa noma ama-motor.
Ibonakala ngokubukeka okuhle nokuncane, isisindo esincane, ukusebenza okuhle kakhulu nokuthembekile, amandla aphezulu okuphuka, ukukhubeka okusheshayo, ukufakwa okulula kwezinsimbi zokuqondisa kanye nokuphila isikhathi eside kwenkonzo.
Kunezimpawu eziningi ku-miniature circuit breaker (MCB). Zisho ukuthini?

1. Kusho ukuthini ukuthi “C20”?
U-20 ungumthamo olinganiselwe, ngakho-ke usho ukuthini u-C? U-C umele izici zokukhubeka ngokushesha kwe-circuit breaker, ehlukaniswe ngezinhlobo ze-B, C kanye ne-D;
Uhlobo B (3-5) I-In ikhubeka ngokuphindwe kathathu kuya kahlanu kunogesi olinganisiwe. Ifanelekela imithwalo yokumelana kuphela kanye nezifunda zokukhanyisa ezibucayi kakhulu. Lolu hlobo lomthwalo lunogesi omncane wokuqala futhi luvame ukusetshenziswa ekukhanyeni kwasekhaya noma ezindaweni ezinezidingo zokuvikela eziphezulu.
Uhlobo C (5-10) I-In ikhubeka ngokuphindwe ka-5 kuya ku-10 kunogesi olinganisiwe. Ifanelekela imithwalo yokungenisa kanye nezisekelo zokukhanyisa ezibucayi kakhulu, njengezibani ze-tungsten halogen. Izici zayo zokuqala zinenani eliphezulu logesi futhi ngokuvamile zisetshenziswa ekuvikeleni isekethe yokusabalalisa. kanye nemithwalo yokukhanyisa enogesi ojwayelekile oqalayo ophezulu.
Uhlobo D (10-14) I-In ikhubeka ngokuphindwe kayi-10 kuya ku-14 kunogesi olinganisiwe. Ifanele izinhlelo zokusatshalaliswa kwamandla ezinemithwalo ephezulu yokungenisa kanye nemisinga emikhulu yomthelela, njengezinjini, ama-valve e-solenoid kanye neminye imithwalo. Imithwalo enjalo inemithwalo ephezulu yomthelela.

I-2.240V/400V 50Hz/60Hz ibhekisela kumasekethe asebenzayo;
3.IEC60898 ibhekisela kumazinga omhlaba wonke e-electrotechnical IEC60898.
4. Isho ukuthini i-4500A engezansi? Ingabe ingugesi?
Ngempela ingumshini wamanje, okubhekisela kumshini wamanje ophuke kakhulu. Okusho ukuthi, uma kwenzeka i-short circuit emugqeni, uma umshini wamanje ungaphezu kuka-3000A, ungase ungaxhunywanga. Le pharamitha ihlukile kubakhiqizi abahlukene.

5. Kusho ukuthini lokhu?
Lolu phawu lubonisa ukuthi i-circuit breaker inemisebenzi emibili yokukhubeka (yokuvikela) yokulayisha ngokweqile kanye ne-short circuit.