Letsatsi: Mar-27-2024
Sebakeng sa polokeho ea motlakase, li-circuit breakers tse nyane (Li-MCBs) e phetha karolo ea bohlokoa ho sireletseng lipotoloho ho tse ngata haholo le lipotolohong tse khutšoane. Lisebelisoa tsena li etselitsoe ho sitisa phallo ea motlakase ka bo eona ha ho bonoa phoso, ho thibela likotsi tse ka bang teng joalo ka mollo kapa ts'ebetso ea motlakase. Ka likhetho tse ngata tse fumanehang ho kenyelletsa AC DC Residual Current 1p 2P 3P 4P MCB, Residual Current Circuit Breaker, RCCB, RCBO le ELCB, ho bohlokoa ho utloisisa bohlokoa ba MCB ho netefatsa polokeho ea litsamaiso tsa motlakase.
Li-MCB li etselitsoe ho fana ka tšireletso e tšepahalang lits'ebetsong tse fapaneng tsa motlakase, ho tloha libakeng tsa bolulo ho ea ho tsa indasteri. Li fumaneha ka litlhophiso tse fapaneng tsa lipalo, ho kenyeletsoa 1P, 2P, 3P le 4P, ho fihlela litlhoko tse ikhethileng tsa ho kenya lisebelisoa tse fapaneng tsa motlakase. Ebang e sireletsa li-circuits tsa mekhahlelo e le 'ngoe kapa tse tharo, MCB e fana ka litharollo tse fapaneng ho sireletsa lisebelisoa tsa motlakase ho tsoa liphoso.
E 'ngoe ea likarolo tsa bohlokoa tsa MCBs ke bokhoni ba bona ba ho lemoha kapele le ho arabela ho overcurrents le lipotoloho tse khutšoanyane. Karabelo ena e potlakileng e thusa ho fokotsa kotsi ea tšenyo ea lisebelisoa tsa motlakase le likhoele le ho fokotsa monyetla oa ho chesa motlakase. Ho feta moo, MCB e na le moralo o kopaneng le o bolokang sebaka, o e etsang hore e be e loketseng bakeng sa lits'ebetso tse nang le sebaka se lekanyelitsoeng.
Ntle le ts'ireletso e feteletseng, li-circuits tse nyane li boetse li fana ka ts'ireletso ea ho lutla 'me hangata li bitsoa residual current circuit breakers (RCCB) kapa leakage current protective devices (RCD). Lisebelisoa tsena li bohlokoa bakeng sa ho lemoha le ho senya potoloho ha ho fumanoa hore ho na le leak, kahoo ho thibela kotsi ea ho tsosoa ke motlakase.
Ha u khetha MCB e nepahetseng bakeng sa ts'ebeliso e itseng, ke habohlokoa ho nahana ka lintlha tse kang boemo ba hona joale, bokhoni ba ho senya le mofuta oa tšireletso o hlokahalang. Ho na le mefuta e fapaneng ea li-MCB tse fumanehang, ho kenyeletsoa li-RCBO (li-circuit breaker tse nang le tšireletso e feteletseng) le ELCBs (leakage current circuit breakers), 'me ho bohlokoa ho khetha MCB e nepahetseng ka ho fetisisa ho netefatsa boemo bo phahameng ka ho fetisisa ba polokeho ea motlakase.
Ka kakaretso, li-MCBs ke karolo ea bohlokoa ea polokeho ea motlakase, e fanang ka tšireletso e tšepahalang khahlanong le liphoso tse fetelletseng, tse khuts'oane le tsa ho lutla. Ka likhetho tsa eona tse fapaneng tse kenyelletsang AC DC Residual Current 1p 2P 3P 4P MCB, RCCB, RCBO le ELCB, MCB e fana ka litharollo tse fapaneng le tse sebetsang bakeng sa ho sireletsa lisebelisoa tsa motlakase lits'ebetsong tse fapaneng. Ho utloisisa bohlokoa ba li-MCB ho bohlokoa ho netefatsa polokeho le ts'epahalo ea lisebelisoa tsa motlakase.