umephuli wojikelezongokuqhelekileyo yenziwe ngenkqubo yoqhagamshelwano, inkqubo yokucima i-arc, indlela yokusebenza, iyunithi yohambo, kunye nebhokisi.
Umsebenzi we-circuit breaker ukunqumla kunye nokudibanisa isiphaluka somthwalo, kwaye unqumle isiphaluka esiphosakeleyo, ukwenzela ukukhusela ukwanda kwengozi kunye nokuqinisekisa ukusebenza okukhuselekileyo.I-high-voltage circuit breaker idinga ukuphula i-1500V, kwaye yangoku yi-1500-2000A arc, kwaye ezi zi-arcs zinokolulwa ukuya kwi-2m kwaye zisaqhubeka zivutha ngaphandle kokucima.Ke ngoko, ukucima i-arc yingxaki ekufuneka isonjululwe kubaphuli beesekethe eziphezulu zombane.
I-low-voltage circuit breakers, ekwaziwa njenge-automaticiiswitshi zomoya, ingasetyenziselwa ukutshintshela kunye nokuvala iisekethe zomthwalo, kwaye ingasetyenziselwa ukulawula iinjini eziqala ngokungaqhelekanga.Umsebenzi wayo ulingana nesimbuku seminye okanye yonke imisebenzi yokutshintsha imela, i-over-current relay, i-voltage loss relay, i-thermal relay kunye nesikhuseli sokuvuza.Isixhobo esibalulekileyo sokukhusela kwinethiwekhi yokusabalalisa i-low-voltage.
Izaphuli zesekethe ezisezantsi zinemisebenzi emininzi yokhuseleko (umthwalo ogqithisileyo,intambo emfutshane, ukukhuselwa kwe-undervoltage, njl.), ixabiso lokusebenza oluhlengahlengiswayo, umthamo ophezulu wokuphulwa, ukusebenza kakuhle, ukhuseleko, njl., Ngoko ke zisetyenziswa ngokubanzi.Isakhiwo kunye nomgaqo wokusebenza I-low-voltage circuit breaker iqulunqwe yindlela yokusebenza, oonxibelelwano, izixhobo zokukhusela (ukukhutshwa okuhlukeneyo), inkqubo yokucima i-arc kunye nokunye.
Uqhagamshelwano oluphambili lwe-low-voltage circuit breaker luvalwe ngesandla okanye ngombane.Emva kokuba uqhagamshelwano oluphambili luvaliwe, indlela yokukhwela yamahhala ivala umnxibelelwano oyintloko kwindawo evaliweyo.Ikhoyili yokukhutshwa kwe-overcurrent kunye ne-thermal element yokukhululwa kwe-thermal idibaniswe kwi-series kunye ne-isekethe ephambili,kunye nekhoyili yokukhululwa kwe-undervoltage idibaniswe ngokuhambelana nokunikezelwa kwamandla.Xa isiphaluka sifutshane okanye sithwele kakhulu, i-armature ye-armature yokukhululwa ngokugqithisileyo iya kutsala ukuze yenze umatshini wokuhamba ngokukhululekileyo, kwaye uqhagamshelwano oluphambili luya kuqhawula isekethe enkulu.Xa isiphaluka sigqithisekile, i-thermal element yokukhutshwa kwe-thermal iya kuvelisa ukushisa ukugoba ishidi le-bimetal, ukutyhala indlela yokukhululwa kwamahhala ukuba isebenze.Xa isiphaluka singaphantsi, i-armature ye-undervoltage release ikhutshwe.Ikwavula indlela yokukhwela simahla.Ukukhutshwa kwe-shunt kusetyenziselwa ulawulo olude.Ngexesha lokusebenza okuqhelekileyo, ikhoyili yayo ivaliwe.Xa kufuneka ulawulo lomgama, cofa iqhosha lokuqala ukunika amandla ikhoyili.
Ixesha lokuposa: Feb-09-2023