Izixhobo ezincinci zeSekethe yeSekethe ziphucula uKhuseleko kunye nokusebenza

AbaNxibelelwano abaNcedisayo (OF) basebenza njengezalathi zemeko ebalulekileyo kunye nezixhobo zokulawula. Idityaniswe ngoomatshini kwi MCB's indlela yokusebenza, zibonelela ngomqondiso othembekileyo wombane obonisa imeko yomaphuli-mthetho evulekileyo (OFF) okanye ivaliwe (ON). Olu lwazi luyimfuneko kwiiphaneli zokubeka iliso ezikude, iinkqubo zeSCADA, okanye iisekethe ezidibeneyo, ezivumela abaqhubi ukuba baqinisekise ubume besiphaluka ngaphandle kokuhlolwa ngokomzimba. I-OF yoqhagamshelwano iqinisekisa ukuba ulandelelwano lolawulo oluxhomekeke kwisikhundla se-breaker senziwa ngokuchanekileyo nangokukhuselekileyo.

Ngokufanayo, i-Alarm Contact (SD) ibonelela ngesaziso esibalulekileyo seziganeko ezithile. Isebenza ngokuzimeleyo kuNxibelelwano oluNcedisayo, ngokuqhelekileyo itshintsha imeko kuphela xa i I-Miniature Circuit Breaker iihambo ngokuzenzekelayo ngenxa yomthwalo omninzi okanye impazamo yesekethe emfutshane. Lo mqondiso ocacileyo ubalulekile ekuchongeni iphutha elikhawulezayo, ukukhupha ii-alamu, okanye iinkqubo zokungena ukulumkisa abasebenzi bokulondoloza ukuba uqhagamshelo oluzenzekelayo lwenzekile, oluvumela ukuphendula ngokukhawuleza kunye nokunciphisa ixesha lokuphumla. Incedisa umsebenzi ongundoqo wokukhusela kunye nolwazi olubalulekileyo lokuxilonga.

Isixhobo seShunt Trip (MX) sazisa amandla okulawula okude. Esi sixhobo sisebenza nge-solenoid sivumela i I-Miniature Circuit Breaker ukuba ivulwe (ikhutshiwe) ukude ngomqondiso wombane, ngaphandle kobukho be-overcurrent okanye i-short-circuit condition. Oku kubalulekile ekuphunyezweni kwemisebenzi yokumisa unxunguphalo, ukudityaniswa kwesixokelelwano se-alam yomlilo (apho iisekethe zifuna ukucima amandla okukhawulezayo), okanye ukuqhawulwa okukude ngeenjongo zokulondoloza. Iyunithi ye-MX inika umaleko obalulekileyo wolawulo lokusebenza kunye nongenelelo lokhuseleko.

I-OF (uQhagamshelwano oluNcedisayo), i-SD (uQhagamshelwano lwe-Alarm), kunye ne-MX (Shunt Trip) izincedisi ziphakamisa kakhulu ukusetyenziswa kunye neprofayili yokhuseleko lwee-MCBs eziqhelekileyo. Ngokuququzelela ukujonga imeko ekude, ukubonelela ngesalathiso sempazamo kwangoko, kunye nokuvumela ukuhamba kude, baguqula eyona nto ibalulekileyo. I-Miniature Circuit Breaker kwicandelo elikrelekrele ngakumbi neliphendulayo kwiinkqubo ezintsonkothileyo zombane. Ukudityaniswa kwabo kuqinisekisa ukuba iinkqubo zombane zisebenza kungekuphela nje ngokufanelekileyo kodwa ngokhuseleko oluphuculweyo kunye nolawulo, ukunciphisa imingcipheko ehambelana nomthwalo ogqithisiweyo, iisekethe ezimfutshane, kunye neengozi zokusebenza kwizicelo ezahlukeneyo.