Kwinkqubo yokusasazwa kwamandla, ii-circuit breakers zisebenza njengezixhobo eziphambili zokukhusela ukhuseleko lwesekethe kunye nokukhusela ukugqithisa kunye neempazamo ze-short-circuit. Ukunxibelelana phakathi kwe-circuit breaker ephambili kunye nee-branch circuit breakers kumisela ngokuthe ngqo uzinzo lwenkqubo yokusasazwa kunye nengqiqo yokuphathwa kweempazamo. Eli nqaku litolika ngokufutshane indawo yazo ephambili kwaye lihlalutye ingqiqo yazo yokulungelelanisa, linceda iingcali ezifanelekileyo kunye nabathengi ukuba baqonde ngokukhawuleza amanqaku aphambili.
Ukucacisa iinkcazo eziphambili kunye nokubekwa kwezi zimbini kubalulekile ekuqondeni ingqiqo yokulungelelanisa:
1.Isixhobo esiphambili sokwaphula iisekethe, eyaziwa ngokuba yi-main breaker, ifakwe kumgca we-trunk wenkqubo yokusasazwa kwamandla. Ilawula imeko yokuvula/ukucima kwesekethe yokusasazwa yonke kwaye ithatha uxanduva lokukhusela yonke inkqubo kwi-overload enkulu kunye neempazamo ze-short-circuit, isebenza njenge "sango eliphambili" lenkqubo yokusasazwa elinokucima umbane kuyo yonke inkqubo.
2.Isixhobo sokwaphula isekethe yesebeIfakwe kumgca ngamnye wesebe, ihambelana neesekethe ezithile zamandla ezifana nokukhanyisa, iisokhethi kunye nezixhobo zombane. Ilawula ukuvulwa/ukuvalwa kwesebe elinye kwaye ikhusela ukhuseleko lwamandla wesebe elikulo, isebenza njenge "sango lesebe" lenkqubo yokusasaza.
Eyona nto iphambili kwingqiqo yabo yokulungelelanisa kwinqanaba eliphezulu nelisezantsi yileukhuseleko olulinganisiweyo kunye nokukhubeka okukhethiweyo, nto leyo ethintela ukwanda kwempazamo.
●Xa kwenzeka impazamo yokugqithisa okanye ye-short-circuit kwisebe, i-branch circuit breaker iya kukhetha ukunqumla umbane wesebe elinomonakalo ngexesha elifanelekileyo, ngelixa i-circuit breaker ephambili ihlala isebenza ngendlela eqhelekileyo ukuqinisekisa ukuba amanye amasebe awachaphazeleki kwaye umbane uyaqhubeka, kufezekiswa injongo yokuba "lisebe elinomonakalo kuphela elicinywayo".
●Xa kukho ingxaki enkulu (njenge-short circuit kumgca we-trunk) ezingenakususwa yi-branch circuit breaker, i-main circuit breaker iya kuvula umsebenzi wayo wokukhusela ukuze inqumle umbane wenkqubo yonke yokusasaza, ithintele ukuba impazamo ingasasazeki kwi-circuit yonke kwaye ibangele ilahleko ezinkulu.
Ukongeza, ingqiqo yokulungelelanisa kufuneka ihlangabezane neemfunoiimpawu zokusebenza ezifanayo: ixesha lokukhubeka kunye nexesha lokusebenza kwe-main circuit breaker kufuneka libe likhulu kunelo le-branch circuit breakers, ukuqinisekisa ukuba i-branch breakers isebenza kuqala kwaye i-main breaker isebenza njengokhuseleko oluxhasayo xa kukho impazamo, kuthintelwe imeko engafanelekanga yokuba i-main breaker ikhubeke kuqala kwaye onke amasebe alahlekelwe ngumbane ngaxeshanye.
Ngamafutshane, ulungelelwaniso olunjalo oluphezulu nolusezantsi aluqinisekisi nje kuphela ukhuseleko lwamandla esebe elinye, kodwa lukwagcina uzinzo lwenkqubo yonke yokusasazwa kwamandla, engumgaqo ophambili kuyilo kunye nokusebenza kweenkqubo zokusasazwa kwamandla.
Ixesha leposi: Matshi-07-2026
