I-MCCB: umthamo wokuqhekeza wesekethe esifutshane olinganiselweyo

Xa ukhethaiqhekeza lesekethe elibunjiweyo (I-MCCB) kwinkqubo yakho yombane, kufuneka unikele ingqalelo kwiimpawu ezibalulekileyo ezininzi. Enye yezi mpawu kukulinganiswa komthamo wokuqhekeza isekethe emfutshane. Le mpawu ibalulekile ekuqinisekiseni ukhuseleko kunye nokuthembeka kweenkqubo zombane, kwaye kubalulekile ukuqonda ukubaluleka kwayo xa ukhetha i-MCCB.

Umthamo wokuqhekeza isekethe emfutshane oqikelelweyo ubhekisa kwinqanaba eliphezulu apho i-circuit breaker inokuphula khona ngokukhuselekileyo i-short-circuit current phantsi kweemeko ezithile. Olu phawu lubalulekile ekukhuseleni iinkqubo zombane kwimiphumo enokuba yingozi yempazamo ye-short circuit. Emva kwenkqubo yovavanyo emiselweyo, i-circuit breaker kufuneka ikwazi ukuqhubeka nokuthwala i-rated current yayo phantsi kwazo naziphi na iimeko. Oku kuqinisekisa ukuba inkqubo yombane ihlala isebenza nokuba kwenzeka ukuba i-short circuit disappear ingasebenzi.

Ukongeza kumthamo wokuqhekeza i-short-circuit oqikelelweyo, umthamo wokuqhekeza i-short-circuit oqikelelweyo we-molded case circuit breaker nawo kufuneka uqwalaselwe. Oku kubhekisa kumthamo wokuqhekeza phantsi kweemeko ezithile. Kufuneka kuqatshelwe ukuba i-circuit breaker kufuneka iqhubeke nokuthwala umbane wayo oqikelelweyo emva kokulandela iinkqubo zovavanyo ezichaziweyo. Olu phawu lubalulekile ekuqinisekiseni ukuthembeka nokhuseleko lweenkqubo zombane ixesha elide.

Kubalulekile ukuqaphela ukuba abavelisi abaninzi bee-circuit breaker zasekhaya ngoku babonelela ngee-plastic case circuit breakers ezineenqanaba ezahlukeneyo ze-short-circuit power current efanayo elinganiswe ngokwesakhelo. Oku kuvumela abasebenzisi ukuba bakhethe i-circuit breaker ehlangabezana neemfuno zabo ezithile kunye neemfuno zabo. Xa ukhetha i-molded case circuit breaker, kubalulekile ukuqinisekisa ukuba amandla okugqibela e-short-circuit breaker anele kwi-short-circuit current elindelekileyo yomgca wombane. Oku kususa isidingo sokongeza izinto zomshuwalense ngokwenziwa, ezinokukhokelela kwinkunkuma engeyomfuneko.

Ixabiso lomthamo wokuqhekeza isekethe emfutshane yokusebenza elinganiselweyo linokwahluka, uninzi lwee-circuit breakers zibonelela ngezakhono eziqala kwi-25% ukuya kwi-75% yomthamo wokuqhekeza isekethe emfutshane olinganiselweyo. Ezinye ii-circuit breakers zibonelela nge-100% yomthamo wokuqhekeza isekethe emfutshane yokusebenza elinganiselweyo. Kubalulekile ukuqwalasela la maxabiso ngononophelo xa ukhetha i-MCCB kuba achaphazela ngokuthe ngqo ukuthembeka kunye nokusebenza kwenkqubo yombane.

Ngamafutshane, amandla okuqhawula isekethe emfutshane alinganisiweyo luphawu oluphambili ekufuneka luqwalaselwe ngononophelo xa ukhetha i-MCCB yenkqubo yakho yombane. Ngokuqonda ukubaluleka kwale propati kunye nempembelelo yayo kukhuseleko kunye nokuthembeka kwenkqubo yombane, ungenza isigqibo esinolwazi xa ukhetha i-MCCB ehlangabezana neemfuno zakho ezithile. Ngenxa yeendlela ezahlukeneyo ezikhoyo ezivela kubavelisi bee-circuit breaker zasekhaya, kubalulekile ukuvavanya ngononophelo amandla okuqhawula isekethe emfutshane ye-MCCB eyahlukeneyo ukuqinisekisa ukuba ukhetha ukhetho oluhambelana kakuhle nenkqubo yakho yombane.