Ama-solar DC circuit breakers: ukuqinisekisa ukuphepha nokusebenza kahle
Ama-DC circuit breaker adlala indima ebalulekile ekuphepheni nasekusebenzeni kahle kwezinhlelo zamandla elanga. Njengoba isidingo samandla avuselelekayo siqhubeka sikhula, ukubaluleka kwamadivayisi okuvikela izifunda athembekile futhi asebenzayo akunakuphikiswana. Emongweni wokukhiqizwa kwamandla elanga, ama-DC circuit breaker ayizingxenye ezibalulekile ezisiza ukuqinisekisa ukusebenza kahle kwezinhlelo ze-photovoltaic ngenkathi zivikela ezingozini zikagesi ezingaba khona.
Izinhlelo zamandla elanga zithembele ku-direct current (DC) ukuguqula ukukhanya kwelanga kube amandla kagesi. Lokhu kusho ukuthi ama-DC circuit breaker aklanyelwe ngqo ukuvikela uhlangothi lwe-DC lokufakwa kwelanga. Lawa ma-circuit breaker anesibopho sokuphazamisa ukuhamba kukagesi uma kwenzeka iphutha noma ukugcwala ngokweqile, ngaleyo ndlela kuvinjelwe umonakalo ohlelweni futhi kuncishiswe ingozi yomlilo noma ukushaqeka kukagesi.
Omunye wemisebenzi ebalulekile ye-DC circuit breaker ekusetshenzisweni kwelanga ukuhlukanisa ingxenye enephutha noma engasebenzi kahle kulo lonke uhlelo. Ku-solar array, amaphaneli amaningi e-photovoltaic axhunywe ngokulandelana noma ngokulingana ukuze akhe intambo noma i-array. Uma kwenzeka iphutha kwelinye lamaphaneli, njenge-short circuit noma i-ground fault, i-DC circuit breaker izonqamula ngokushesha ingxenye ethintekile, ivumele lonke uhlelo ukuthi luqhubeke nokusebenza ngaphandle kokuphazamiseka.
Ngaphezu kokuvimbela ukwehluleka, ama-DC breaker nawo asiza ekunakekelweni okuvamile kanye nokuxazulula izinkinga zezinhlelo zamandla elanga. Ngokuhlinzeka ngendlela yokuhlukanisa izingxenye ezithile zesekethe ye-DC, la madivayisi avumela ochwepheshe ukuthi basebenze ngokuphephile ezingxenyeni ngazinye ngaphandle kokuvala lonke uhlelo. Lokhu akugcini nje ngokusindisa isikhathi nomzamo, kodwa futhi kusiza ukuthuthukisa ukuthembeka okuphelele kanye nesikhathi sokufakwa kwakho kwelanga.
Uma ukhetha i-DC circuit breaker yokusetshenziswa kwelanga, kunezinto eziningana okufanele zicatshangelwe. Lokhu kufaka phakathi izilinganiso ze-voltage kanye nezamanje zamaphaneli elanga, uhlobo lobuchwepheshe be-photovoltaic obusetshenziswayo, kanye nezidingo ezithile zokufakwa. Kubalulekile ukukhetha i-circuit breaker ehambisana nezici ezihlukile zesistimu yamandla elanga futhi engakwazi ukumelana nezimo zemvelo ezivame ukuhlangatshezwa ekufakweni kwelanga.
Ngaphezu kwalokho, ukwakheka nokwakhiwa kwama-solar DC circuit breakers kumele kuhambisane nezindinganiso nemithethonqubo yemboni ukuqinisekisa ukuthembeka kwawo nokuthembeka. Njengoba amandla elanga eqhubeka nokuthola ukudonswa njengomthombo wamandla ojwayelekile, isidingo samadivayisi okuvikela isekethe asezingeni eliphezulu ahlangabezana nezindinganiso zokusebenza eziqinile kanye nokuphepha siba yinto ebaluleke kakhulu.
Eminyakeni yamuva nje, intuthuko kwezobuchwepheshe be-DC circuit breaker iholele ekuthuthukisweni kwamadivayisi asebenza kahle futhi athembekile aklanyelwe ngqo ukusetshenziswa kwelanga. Lawa ma-circuit breaker esimanje ahlinzeka ngokuvikelwa okuthuthukisiwe kanye nokulawula izinhlelo zelanga, ngezici ezifana nokutholwa kwamaphutha e-arc, amakhono okuvala ngokushesha, kanye nokuqapha okukude.
Ekuphetheni, ama-DC circuit breaker ayisici esibalulekile ezinhlelweni zamandla elanga ukuvimbela ukwehluleka kukagesi, ukuvumela ukulungiswa okuphumelelayo, nokuqinisekisa ukuphepha nokuthembeka okuphelele kokufakwa. Njengoba imboni yelanga iqhubeka nokukhula, isidingo samadivayisi okuvikela isekethe asebenza kahle aklanyelwe ngqo ukusetshenziswa kwelanga sizoqhubeka nokukhula. Ngokutshala imali kuma-DC circuit breaker asezingeni eliphezulu, abanikazi bezinhlelo zamandla elanga kanye nabaqhubi banganciphisa ngempumelelo ubungozi futhi bandise ukusebenza kokutshalwa kwezimali kwabo kwamandla avuselelekayo.
Isikhathi sokuthunyelwe: Julayi-01-2024