Ungakhetha kanjani amandla okuphuka kwe-box circuit breaker?

Amandla okuphuka kweibhokisi Uhlobo lwe-breakeribhekisela kugesi wesifunda esifushane ongaphulwa yi-circuit breaker phezu kwesisekelo sokuqinisekisa ukuthi akukho monakalo uma kwenzeka iphutha le-short-circuit ohlelweni lwesifunda.Umthamo wokuphula nawo uwukwahlulela ekusebenzeni kokuvikela kwe-breaker circuit.Ungakhetha kanjani amandla okuphuka kwe-circuit breaker?Ingabe enkulu iyona engcono?Ake siyihlaziye
Umsebenzi we-box circuit breaker ukuxhuma, ukuthwala kanye nokunqamula i-current evamile.Ngesikhathi esifanayo, ingaphinda ixhume, ithwale futhi inqamule i-fault current ngaphansi kwezimo ezingavamile (i-overload kanye ne-short circuit).Ikhono lokunqamula i-fault current iyindinganiso ebalulekile yokwahlulela ukusebenza kwe-circuit breaker, okungukuthi, amandla okuphuka kwe-circuit breaker.Njengamanje, amandla okuphuka kwe-circuit breaker anezinkomba ezimbili, okuyilezi:
1. Isilinganiso sokusebenza esinqamula isiyingi esifushane ics sesiphazamisi sesekhethi: isilinganiso sokusebenza kwesekethe emfishane umenzi angakwazi ukusiphula ngaphansi kwezimo ezishiwo ngaphansi kwevoltheji elinganiselwe ehambisanayo.Ngokuqondile, ngemva kokuba i-circuit breaker ingakwazi ukusika i-current-circuit current, i-circuit breaker isengasetshenziswa ngokujwayelekile.
2. Umkhawulo olinganiselwe womthamo wokuphulwa kwesekethe emfishane ye-ICU: umkhawulo wamanje wesekethe emfushane umkhiqizi wesiphazamisi sesekhethi yozimele angawephula ngaphansi kwezimo ezishiwo ngaphansi kwevoltheji elinganiselwe ehambisanayo.Okusho ukuthi, ngemva kokuba i-circuit breaker inqamule i-short-circuit current, uma ivuliwe futhi ivaliwe futhi, ngeke isakwazi ukusetshenziswa ngokujwayelekile.
Umthamo wokuphuka we-box circuit breaker unokucaciswa okuningi okuhlukahlukene kanye nemingcele.Ngokuvamile, umthamo omkhulu wokuphuka, ukuphepha okuphezulu, kodwa intengo ye-circuit breaker enamandla amakhulu okuphuka izoba phezulu.Ngakho-ke, kuyadingeka ukukhetha i-circuit breaker enamandla afaneleka ngokwesilinganiso endaweni yokuqinisekisa ukuphepha kwemishini, ukuze ulondoloze isabelomali esithile.