Ukuqinisekisa Ukuphepha Okuphelele kuma-DC Circuit Breakers

Emkhakheni wezinhlelo zikagesi, ukuphepha kuhlala kuyinto ehamba phambili. Njengoba isidingo samandla avuselelekayo siqhubeka sikhula, ukusetshenziswa kwamandla aqondile (DC) kuya ngokuya kuvame kakhulu. Kodwa-ke, lolu shintsho ludinga onogada abakhethekile ukuze baqinisekise ukuphepha kwabasebenzi kanye nemishini. Kulokhu okuthunyelwe kwebhulogi, sizohlola izingxenye ezibalulekile ze-aI-DC circuit breakernokuthi basebenzisana kanjani ukuze banikeze ukuvikeleka okuthembekile.

1. Idivayisi yokuvikela ukuvuza kwetheminali ye-AC:
Uhlangothi lwe-AC lwe-DC circuit breaker lufakwe idivayisi yamanje eyinsalela (RCD), eyaziwa nangokuthi i-residual current circuit breaker (RCCB). Le divayisi iqapha ukugeleza kwamanje phakathi kwezintambo ezibukhoma nezimaphakathi, ithola noma yikuphi ukungalingani okubangelwa iphutha. Uma lokhu kungalingani kutholwa, i-RCD iphazamisa ngokushesha umjikelezo, ivimbele ingozi yokushaqeka kagesi nokunciphisa umonakalo ongase ube khona ohlelweni.

2. Iphutha letheminali ye-DC lidlula kumtshina:
Jikela ohlangothini lwe-DC, sebenzisa umtshina wesiteshi onephutha (idivayisi yokuqapha ukufakwa kwe-insulation). Umtshina udlala indima ebalulekile ekuqapheni okuqhubekayo kokumelana nokufakwa kwesistimu kagesi. Uma kwenzeka iphutha futhi ukumelana nokufakwa kwe-insulation kwehla ngaphansi komkhawulo onqunywe kusengaphambili, umtshina wesiteshi onephutha usheshe uhlonze iphutha bese uthatha isinyathelo esifanele sokusula iphutha. Izikhathi zokuphendula ngokushesha ziqinisekisa ukuthi amaphutha awakhuli, avimbele izingozi ezingaba khona kanye nokulimala kwemishini.

3. I-DC terminaling grounding protective circuit breaker:
Ngokungeziwe kumtshina wesiteshi esinephutha, uhlangothi lwe-DC lwe-circuit breaker lufakwe ne-grounding protection breaker. Le ngxenye isiza ukuvikela isistimu kumaphutha ahlobene nomhlabathi, njengokuqhekeka kwe-insulation noma ama-surges abangelwa umbani. Uma iphutha litholwa, i-breaker circuit yokuvikela umhlabathi ivula ngokuzenzakalelayo i-circuit, inqamule ngokuphumelelayo ingxenye engalungile ohlelweni futhi ivimbele ukulimala okwengeziwe.

Ukuxazulula inkinga ngokushesha:
Nakuba ama-circuit breaker e-DC ehlinzeka ngokuvikeleka okuqinile, kubalulekile ukuqaphela ukuthi isenzo esisheshayo esizeni sibalulekile ekuxazululeni izinkinga ngesikhathi. Ukubambezeleka ekuxazululeni amaphutha kungonakalisa ukusebenza kwemishini yokuzivikela. Ngakho-ke, ukugcinwa okuvamile, ukuhlolwa, kanye nokusabela okusheshayo kunoma iyiphi inkomba yokwehluleka kubalulekile ukuze kuqinisekiswe ukwethembeka okuqhubekayo kwesistimu.

Imikhawulo yokuvikela yamaphutha aphindwe kabili:
Kubalulekile ukuqonda ukuthi ngisho nalezi zingxenye zokuzivikela zikhona, i-DC circuit breaker ingase ingaqinisekisi ukuvikelwa uma kwenzeka iphutha eliphindwe kabili. Amaphutha aphindwe kabili ayenzeka lapho amaphutha amaningi enzeka ngesikhathi esisodwa noma ngokulandelana ngokushesha. Ubunkimbinkimbi bokusula ngokushesha amaphutha amaningi buletha inselele ekuphenduleni okusebenzayo kwezinhlelo zokuvikela. Ngakho-ke, ukuqinisekisa ukuklanywa okufanele kwesistimu, ukuhlolwa okuvamile, nezinyathelo zokuvimbela kuyadingeka ukuze kuncishiswe ukuvela kokwehluleka okuphindwe kabili.

Ngokufigqiwe:
Njengoba ubuchwepheshe bamandla avuselelekayo buqhubeka nokuvela, ukubaluleka kwezinyathelo zokuvikela ezifanele njengama-DC circuit breaker ngeke kugcizelelwe ngokweqile. Inhlanganisela yedivayisi yamanje eyinsalela eseceleni kwe-AC, umtshina wesiteshi sephutha eseceleni kwe-DC kanye nesiphazamiso sokuvikela umhlabathi kusiza ukuthuthukisa ukuphepha okuphelele nokuthembeka kohlelo lukagesi. Ngokuqonda umsebenzi walezi zingxenye ezibalulekile nokuxazulula ngokushesha ukwehluleka, singakha indawo ephephile kagesi yawo wonke umuntu ohilelekile.