I-DC Circuit Breaker kanye ne-Fuse, okuyimishini yokuvikela ethuthukisiwe

Ochwepheshe abaningi bakagesi bacabanga ukuthi ama-fuse ayizinto zokuvikela ezindala, kanti ama-DC circuit breaker ayizinto zokuvikela eziphambili. Ingabe lo mbono ulungile?

Kungabonakala ukuthi ijika lokushintsha kwesici sesikhathi-samanje sefusi liseduze nejika lokuhlaziya lesici lekhono lokufunda lokukhuthazela kokushisa lesekethe yokusebenza evikelwe, okubonisa ukuthi linomphumela wokuvikela ukunqwabelana ngokweqile, kodwa ukusetshenziswa kwalo akulula njenge-DC circuit breaker. Uma i-DC circuit breaker iphuka ngenxa yokudlula kwamandla kagesi, ingavalwa ukuze inikeze amandla ngemva kokuxazulula izinkinga, okulula kakhulu futhi okulula. Ifusi kumele ishintshwe ngesikhathi ngencazelo efanayo yefusi, okudingekayo ukuhlinzeka ngezingxenye ezahlukahlukene ezisele ezinemininingwane ehlukene, okuletha izinkinga eziningi kumsebenzisi.

Izintambo zefuse nazo zidinga ukunakwa kakhulu. Isibonelo, i-terminal ephakathi yefuse yesikulufu kumele ixhunywe ohlangothini lokunikezwa kwamandla, kanye ne-terminal yesikulufu kumele ixhunywe ohlangothini lomthwalo. Ngaphandle kwalokho, kulula ukudala ingozi yokushaqeka kukagesi lapho ifuse ishintshwa.

Kodwa-ke, njengamanje, ekwakhiweni kwemvelo kwezwe lethu, amanye amabhizinisi okukhiqiza amafektri, izakhiwo zamahhovisi kanye nezinye izinhlelo zokusabalalisa ugesi eziphethwe ochwepheshe be-electrical automation (abasebenzi be-BA4 kanye ne-BA5, bheka iSithasiselo C) basebenzisa ama-DC circuit breakers ngokuyisisekelo. Bambalwa abadinga ukusebenzisa ama-fuse, kodwa kwamanye amazwe athuthukile kwezomnotho, ukusetshenziswa kwalezi zinhlobo ezimbili zezinto zikagesi cishe kuyingxenye.

Njengoba sonke sazi, intengo ye-DC circuit breaker iphakeme kakhulu ngomthamo omkhulu womugqa oyinhloko, kuyilapho i-fuse enomthamo olinganiselwe omncane njengo-30 inganqamula kalula umugqa omfushane wamakhilomitha angu-50, futhi izindleko zokushintsha i-fuse zilinganiselwe kakhulu. Ngaphezu kwalokho, ngemva kokucima i-DC circuit breaker, umthamo wokuvimba wabathintana uhlala ungashintshi ngemva kokushintsha nge-spare entsha. Kulokhu, kungaba ngcono ukusika umugqa omfushane nge-fuse.

Ngaphezu kwalokho, lapho umehluko wezinga lamanje le-fuse ngayinye ngokwezinga lomkhiqizo (okungukuthi, i-current engahlanganisi i-If evunyelwene ngayo ingu-1.25in, kanye ne-fusing current evunyelwene ngayo i-If ingu-1.6in) iyizikhathi ezingu-1.6, izinga lomkhiqizo licacisa wonke amazinga ama-fuse. Ukukhetha kwayo kungaqinisekiswa uma kusetshenziswa njengesivikelo sokulayisha ngokweqile, kodwa kunzima ukufeza ama-DC circuit breakers. Ngamanye amazwi, ama-fuse anokukhetha okungcono phakathi kwamazinga okuvikela ukulayisha ngokweqile, okunganciphisa ubuso bokwehluleka kwamandla ngesikhathi sesenzo sokuvikela ukulayisha ngokweqile.