Ukukhetha i-circuit breaker

1.kumjikelezo wokukhanyisa ukuze kuncishiswe izindleko zephrojekthi, ngokuvamile khetha i-breaker circuit ye-1P, udinga ukunaka i-breaker circuit ephakeme kufanele ibe nomsebenzi wokuvuza wokuhamba, kumele unqume ukunikezwa kwamandla aphezulu;

2. Ukugcinwa kwamandla ukuze kuvinjwe ulayini obukhoma futhi ulayini onguziro uxhumeke engozini (lapho ulayini obukhoma nolayini onguziro uxhunywe ku-1P unqamula ulayini onguziro futhi ungazange unqamule ulayini obukhoma), ungasetshenziswa. 1P+N idivayisi yesekethe emfushane, okuvame ukuthiwa i-DPN circuit breaker.

3. Ngezindlu ze-circuit breaker ezinosayizi ofanayo, kunomehluko phakathi kwe-1P ne-1P+N, yangaphambili inamandla okuphuka okuphezulu kuneyakamuva ngaphansi kwesimo sengozi yesifunda esifushane.Ngakho-ke, kunconywa ukusebenzisa i-circuit breaker ye-2P yesifunda esibaluleke kakhulu kanye nokugcinwa njalo nokusebenza kwesifunda kuphrojekthi, kodwa izindleko ziphezulu.

Ngaphezu kwalokho: 1P, 2P yesigaba esisodwa, 3P, 4P yezigaba ezintathu.

Uma kuyisivikelo esingu-zero, i-1P kuphela, i-3P ingasetshenziswa;Uma kuyisisekelo esivikelayo, kungcono ukusebenzisa i-2P, 4P.

I-1P + N: umvikeli ufakwe kuphela kulayini wesigaba, futhi umugqa wesigaba unqanyuliwe ngesikhathi esifanayo lapho isenzo senziwa.