ISigaba esiNye-iSigaba soMkhuseli wokuvuza sinokuQhagamshelwa kwisiThathu-iSigaba seSine-iSekethe yocingo

Inqanaba elinyeukuvuza umgcini(yenziwe ngui-miniature-circuit-breaker)ayinakudityaniswa kwisigaba sesithathu socingo lwesekethe.Ubuchwephesha bukhethekileyo,Isigaba esisodwa sokuvuza sitshintshe i-MCBkwisixhobo sokugcinwa kokuvuza ngaphakathi kwe-zero-ulandelelwano lwangoku lwe-transformer ubhaqo ngumgca wesigaba (ngaphambili) kunye nomgca we-null we-vector yangoku eseleyo, xa ukuvuza kwangoku kudlula i-30mA, nge-terminal ukwenza isixhobo sokukhubeka, ukunyanzela ukukhubeka kwangaphakathi. inkqubo yokusebenza, ukufezekisa indima yokulondoloza.

Umzobo wocingo lwe2P ukuvuza switchnjengoko kubonisiwe ngezantsi:

Umkhuseli wokuvuza wesigaba esisodwa unokudibaniswa nesithathu - isigaba sesine - isekethe yocingo

Ukutshintsha okuvuza kwenqanaba elinyeinomgca wesigaba kunye nolawulo lomgca ongenanto, kukho ulawulo lomgca wesigaba esahlukileyo.Nangona kukho umgca ongenanto kwisigaba sesithathu sombane ombane, unokuqulunqwa nge-voltage ye-220V kunye nemigca yesigaba esithathu ngokungenamthetho, kodwa ayikwazi ukulawula eminye imigca emibini yesigaba.

Umzobo we-wiring wesigaba sesithathu sokutshintsha ukuvuza kweentambo kuboniswe kumzobo ongentla.

Kubalulekile ukuba uqaphele ukubaIsigaba sesithathu sokuvuza switchh yahlulwe ibe yi-3P kunye ne-3P + N, iukuvuza switchOlu lwakhiwo luxabisa kancinci kunotshintsho lokuvuza lwenqanaba elinye.

I-3P + N i-input input wire idinga kuphela ukwazi ukuba ucingo olungathathi hlangothi luxhunyiwe kwi-N, kunye nezinye i-L1, i-L2, i-L3 inokudibaniswa kwi-terminal yocingo.

I-3 p + N ukuvuza kokugcinwa komgca we-N ngokuthe tye (kungakhathaliseki ukuba ngokwahlukileyo kwisimo sejelo), uxhulumaniso kufuneka lube ngaphambili kwicala lasekhohlo, umgca we-null ngomgca kwi-N, ukuba i-N iphosakele ngaphambili. ayinako ukugcina isekethe ekhubekayo eqhubekayo inokugcinwa kombane.