Ngaba kufuneka isixhumi sombane esisezantsi sisale ngasemva kwesaphuli sesekethe yombane ophantsi?

Ngaba kukho umbono onjalo wokuba i-disconnector inqanaba eliphantsi, kwaye i-circuit breaker yinqanaba eliphezulu, apho i-disconnector isetyenzisiweyo, i-breaker circuit ingasetyenziselwa endaweni?Le ngcamango iyaxoxisana, kodwa i-disconnectors kunye nabaphuli beesekethe banezicelo zabo.

I-low-voltage circuit breaker sisixhobo sokutshintsha oomatshini esinokwenza, sithwale, kwaye saphule okwangoku phantsi kweemeko zesekethe yesiqhelo, kwaye sinokwenza, sithwale, kwaye siphule impazamo yangoku kangangexesha elithile phantsi kweemeko ezingaqhelekanga njengesekethe emfutshane.Izaphuli zesekethe zombane ophantsi zinokwahlulwa zibe ziifreyimu zesekethe (ACB), i-mold case circuit breakers (MCCB) kunye ne micro circuit breakers (MCB).I-voltage ephantsi ye-isolator switch inomsebenzi we-isolator kunye nokutshintsha.Okokuqala, inomsebenzi wokuzihlukanisa.Ngexesha elifanayo, inokudityaniswa, imelane kwaye iphule umthwalo wangoku phantsi kweemeko eziqhelekileyo.Oko kukuthi, iswitshi ye-isolator inomsebenzi wazo zombini i-isolator kunye nokutshintsha.

Umsebenzi we-isolator kukuqhawula ukunikezelwa kwamandla ombane okanye izixhobo zombane.Ngexesha elifanayo, unokubona indawo ecacileyo yokuqhawula.I-isolator ayikwazi ukukhusela umgca okanye izixhobo.Kodwa ukutshintshela akufuneki ukuba ube nomsebenzi wokuzihlukanisa, unomsebenzi wokutshintsha kunye nokucima umthwalo wangoku, unokumelana nexesha elithile lesiphaluka esifutshane.Ngokomzekelo, umtshini we-semiconductor awukwazi ukusetyenziswa njenge-isolator, ngenxa yokuba izixhobo zombane ze-semiconductor azikho zodwa ngokwasemzimbeni, ukugqithisa kweemfuno zokuvuza kwangoku kwe-isolator kungaphantsi kwe-0.5mA, ngoko ke i-semiconductor ayifanele isetyenziswe njengesixhobo. umntu oyedwa.

Enyanisweni, kukho izicelo ezininzi zokutshintsha kwe-isolator, kodwa kwezinye iindawo, ukusetyenziswa kwe-isolator iswitshi ithathelwa indawo yi-breaker yesiphaluka, ngakumbi kwintsimi yoluntu, engaphumeleli nje ukuyila kunye nokwakhiwa ngokuhambelana neemfuno ingcaciso, kodwa ikwanyusa iindleko zeprojekthi.Usetyenziso lweswitshi yokuqhawula luhamba ngolu hlobo lulandelayo:

(1) Ikhabhinethi yokusasaza engundoqo ephezulu ikhuselwe ziziqhekeza zesekethe okanye iifuse, kwaye imowudi yonikezelo lombane yohlobo lwemitha yamkelwa ukuba ingene endlwini.Akukho sebe embindini wonikezelo lwamandla ombane.Intambo yokungena kwikhabhinethi yokusabalalisa kufuneka ibe yodwa.

(2) Izixhobo zombane ezahlulayo kufuneka zisetwe kwisekethe engundoqo yemigca emibini yombane yokungena kwisixhobo sokusika sombane esiphindwe kabini, kwaye kufuneka kusetyenziswe izitshixo ezikhethekileyo zokwahlula.

(3) ingaba ikhabhathi yokuhambisa amandla ombane ophantsi kufuneka ifakwe ngokwahlukeneyo ifuna uhlalutyo oluthile, ukuba ikhabhathi yokuhambisa amandla ombane ophantsi yikhabhathi yeedrowa, awukwazi ukuseta isixhobo sombane sodwa, kuba ikhabhathi yedrowa inokuba yisekethe. i-breaker kunye nezinye i-overall out;Ukuba ikhabhinethi yokusabalalisa i-voltage ephantsi yikhabhinethi esisigxina, i-switch yokuqhawula kufuneka ifakwe okanye i-breaker circuit kunye nomsebenzi wokuhlukanisa kufuneka isetyenziswe.

(4) Umgca ongenayo opheleleyo webhokisi yesebe yentambo kufuneka yamkele iswitshi ekhethekileyo yokuqhawula, kwaye isiphaluka ngasinye sesebe kufuneka samkele iswitshi yohlobo lwe-fuse yokuqhawula okanye i-MCCB enomsebenzi opheleleyo wokuzihlukanisa.

Ngamafutshane, ukwenzela ukuba kube lula ukugcinwa, ukuvavanywa kunye nokulungiswa kwemigca yombane okanye izixhobo zombane, kubalulekile ukufakela iqhosha lokuqhawula kwindawo ekulula ukuyisebenzisa kwaye kulula ukuyiqwalasela.