Abaphuli beesekethe abakrelekrele be-Universal Circuit – Ukuvelisa uKhuseleko loMbane oluSebenzisa ii-ACB

Isidingo sezixhobo zokhuseleko zombane eziphucukileyo sikhulu kunangaphambili. Amacandelo emizi-mveliso kunye nezorhwebo afuna ubuchule obuninzi ukuqinisekisa umbane ozinzileyo, ukubonelela ngombane okhuselekileyo kunye nokukhusela izinto zawo. Uyilo olutsha lweiziphuli zesekethe ezikrelekrelekwaye ukusebenza kwabo okuthembekileyo kube lutshintsho olukhulu kushishino. Namhlanje, siza kujonga ngokusondeleyo indlelai-air circuit breaker (ACB)sisiseko sayo nayiphi na inkqubo yokusasazwa kwamandla yanamhlanje.

IUmqhekezi weSekethe yeHlabathi ekrelekrele, esizibiza ngokubaI-ACB, sisixhobo sokukhusela esinobuchule esiqinisekisa igridi ezinzileyo ngokusebenzisa imisebenzi ekrelekrele. Siqulathe izinto ezininzi eziquka iiyunithi zokuhamba, iisensa kunye nee-actuator. Ii-circuit breakers zinoxanduva lokukhubeka xa kukho imeko engaqhelekanga kwigridi, efana nokugqithiswa kakhulu, i-short circuit okanye i-ground failure, kunye nokwahlula ngokupheleleyo i-circuit. Xa ikhubeka, isixhobo silumkisa umqhubi wenkqubo nge-alamu okanye isignali.

I-ACB isebenza kakhulu kuba inokunxibelelana namacandelo ahlukeneyo enkqubo yombane, kuquka nezinye iziphuli zesekethe, iimitha, kunye neerelayini, nto leyo evumela ukujongwa ngokupheleleyo kwegridi. Olu lwazi lubalulekile ekwenzeni ngcono ukhuseleko, ukusebenza kunye nenzuzo yokufakelwa kombane. Ngokuqokelela kunye nokucubungula idatha malunga namandla, amandla kunye neeparameter ezininzi, iziphuli zesekethe zinceda ukukhusela izixhobo, ukuthintela iintlekele kunye nokwandisa ukusebenza kakuhle.

Ii-ACB ziyafumaneka ngobukhulu obahlukeneyo kunye neentlobo ngeentlobo, nto leyo esenza sikwazi ukuhlangabezana neemfuno ezahlukeneyo zesicelo kushishino. Ulwakhiwo lwesixhobo luquka umzimba we-circuit breaker oxhotyiswe ngombane, indlela yokusebenza kunye nokukhululwa. Ulwakhiwo lwaso loqhagamshelwano luyi-laminated bronze enolwakhiwo oluneeleya ezininzi kunye nokunyamezelana okuchanekileyo okuqinisekisa ukuhanjiswa kombane okusemgangathweni ophezulu kunye nokuqina. Indlela yaso yokusebenza inokuba yeyombane okanye yentwasahlobo, nto leyo esivumela ukuba sifake ii-circuit breakers ngokuthembekileyo, ngokufanelekileyo nangokulula kwiimeko ezinzima.

Okokugqibela, iyunithi yokuhamba yeyona nto ibalulekileyo kwi-ACB njengoko ihlalutya i-waveform kwaye imisela ukuba kufuneka ihambe nini. Iiyunithi zokuhamba zingaba ze-elektroniki okanye ze-electromechanical, kuxhomekeke kwisicelo. Ibandakanya i-CT, i-PT, ibhodi yesekethe yokulawula kunye ne-microprocessor. I-CT kunye ne-PT zisampulu zamandla kunye ne-voltage ngokulandelelana, kwaye zithumele isignali kwibhodi yokulawula ukuze icutshungulwe. I-microprocessor emva koko ihlalutya idatha yesignali ukuze ifumanise ukuba kukho into engaqhelekanga kwisekethe kwaye, ukuba kuyimfuneko, ikhuphe umyalelo we-trip kwi-actuator, ngaloo ndlela ikhube indlela yokusebenza.

Ukushwankathela,i-circuit breaker ekrelekrele yendalo yonkesisixhobo esibalulekileyo sokukhusela umbane ukuze kufezekiswe inkqubela phambili enkulu yegridi yombane yelizwe lam. Ngeempawu zayo ezikrelekrele nezithembekileyo kunye nemisebenzi, ii-circuit breakers ziphucula kwaye ziqinisekisa ukhuseleko, ukusebenza kunye nokusebenza kakuhle kokufakelwa kombane. Njengoko ishishini liqhubeka nokukhula kwaye likhula, ukubaluleka kokhuseleko lombane akunakugxininiswa kakhulu. I-ACB ibonelela ngezisombululo ezipheleleyo ezihlangabezana neemfuno ezahlukeneyo zesicelo kwaye ziqinisekisa ukuqhubeka kokunikezelwa kombane, ngaloo ndlela zonyusa ukuthembeka kunye nemveliso kumacandelo emizi-mveliso kunye norhwebo.