Iintlobo ze-Circuit Breaker kunye neSikhokelo soKhetho

Iziphuli zesekethe zizinto ezibalulekileyo kwiinkqubo zombane, zisebenza njengezixhobo zokukhusela ukuthintela umonakalo obangelwa kukugqithisa kakhulu kunye neesekethe ezimfutshane. Iziphuli zesekethe zenzelwe ukuphazamisa ngokuzenzekelayo ukuhamba kombane xa kufunyenwe impazamo, ukuqinisekisa ukhuseleko lwenkqubo yombane kunye nabasebenzisi bayo. Eli nqaku liza kujonga imisebenzi, iintlobo, kunye nokubaluleka kweziphuli zesekethe kwiinkqubo zombane zanamhlanje.

Umsebenzi ophambili we-circuit breaker kukuvula nokuvala i-electrical circuit. Ngokungafaniyo nee-fuses zemveli, ekufuneka zitshintshwe emva kokuba zivuthuze, ii-circuit breakers zinokuphinda zisetyenziswe emva kokuba zikhubekile, nto leyo eyenza zibe sisisombululo sokukhusela umbane esilula nesisebenzayo. Xa kuvela impazamo yombane, efana nokugqithiswa kwamandla (umbane odlula umthamo olinganisiweyo we-circuit) okanye i-short circuit (umbane ohamba ngendlela engalindelekanga), i-circuit breaker ibona into engaqhelekanga kwaye iphazamise ukuhamba kombane, ithintela iingozi ezinokubakho ezifana nemililo yombane okanye umonakalo wezixhobo.

Kukho iintlobo ezininzi ezahlukeneyo zee-circuit breakers, nganye yenzelwe usetyenziso oluthile kunye neendawo ezithile. Ezona ntlobo zixhaphakileyo ziquka:

1. I-Miniature Circuit Breaker (MCB): Isetyenziswa kwiindawo zokuhlala nakwiindawo zorhwebo ukukhusela ukugqithisa kunye neesekethe ezimfutshane. Ii-MCB zincinci kwaye kulula ukuzifaka kwiibhokisi zokusasaza.
2. I-Residual Current Breaker (RCCB): Ekwaziwa njengesixhobo samandla asele (RCD), esi sitshisi sesekethe senzelwe ukuthintela ukutshayiswa kombane ngokubona ukungalingani kwamandla. Ukuba umntu uchukumisa ucingo oluphilayo, i-RCCB iyawa, inqumle umbane.
3. Isixhobo sokwaphula isekethe yokuvuza komhlaba (ELCB): Njenge-RCCB, i-ELCB isetyenziselwa ukubona iimpazamo zomhlaba kunye nokuthintela ukutshayiswa ngumbane. Ii-ELCB zibaluleke kakhulu kwiindawo ezimanzi ezifana nezindlu zangasese nangaphandle.
4. Isixhobo sokwaphula isekethe yomoya (i-ACB): Olu hlobo lwe-circuit breaker lusetyenziswa kwizicelo zoshishino kwaye lunokusingatha amazinga aphezulu ombane. Ii-air circuit breakers zisetyenziselwa ukukhusela iinkqubo ezinkulu zombane kwaye zinokusetyenziswa ngesandla okanye ngokuzenzekelayo.
5. Iziphuli zeSekethe zeMagnetic zeHydraulic: Ezi circuit breakers zisebenzisa indibaniselwano yeendlela zobushushu kunye nemagnethi ukuvula icircuit. Zihlala zisetyenziswa kwiinkqubo zombane ezinkulu ezifuna ukhuseleko olugqithisileyo kunye nolwe-short-circuit.

Ukubaluleka kweziphuli zesekethe akunakugxininiswa kakhulu. Zidlala indima ebalulekileyo ekuqinisekiseni ukhuseleko lwezixhobo zombane kunye nokukhusela abantu kunye nempahla kwiingozi zeziphene zombane. Ngaphaya kokhuseleko, iziphuli zesekethe zikwanegalelo ekuphuculeni ukuthembeka kwenkqubo yombane. Ngokuthintela umonakalo wezixhobo kunye nokunciphisa ixesha lokungasebenzi, zinceda ukugcina ukusebenza kakuhle kwiindawo zokuhlala kunye nezorhwebo.

Ngaphezu koko, ukuqhubela phambili kwezobuchwepheshe kukhokelele ekuphuhlisweni kwee-smart circuit breakers, ezibonelela ngezakhono eziphuculweyo ezifana nokujonga kude. Ezi zixhobo zanamhlanje zinokubonelela ngedatha yokusetyenziswa kombane ngexesha langempela, zivumela abasebenzisi ukuba basebenzise kakuhle amandla kwaye babone iingxaki ngaphambi kokuba ziqhubeke.

Ngamafutshane, ii-circuit breakers zizixhobo zokhuseleko ezibalulekileyo ezikhusela iinkqubo zombane kwi-overloads kunye ne-short circuits.Kukho iintlobo ngeentlobo zee-circuit breakers, ezifanelekileyo kwizicelo ezahlukeneyo, ukuqinisekisa ukhuseleko kunye nokuthembeka kokufakelwa kombane. Ngokuqhubeka nophuhliso lwetekhnoloji, ikamva lee-circuit breakers libonakala liqaqambile, njengoko izinto ezintsha ziya kuphucula ngakumbi ukusebenza kwazo kunye nokusebenza kwazo ekukhuseleni iziseko zombane. Ukuqonda indima kunye nokubaluleka kwee-circuit breakers kubalulekile kuye nabani na osebenza ngeenkqubo zombane, nokuba yingcali okanye ngumninimzi ofuna ukuqinisekisa ukhuseleko lwazo.

 

Yintoni i-circuit breaker?
Isixhobo sokwaphula isekethe sisixhobo sokhuseleko sombane esenzelwe ukukhusela isekethe yombane kumonakalo obangelwa ngumbane ongaphezulu koko isixhobo esinokukuthwala ngokukhuselekileyo (umbane ogqithisileyo). Umsebenzi waso oyintloko kukuphazamisa ukuhamba kombane ukukhusela izixhobo nokuthintela umlilo.