Izinto ezikhusela ukuvuza

Isithinteli sokuvuza sikwabizwa ngokuba yiI-Residual Current Breaker eseleyo (I-RCCB), kwaye ulwakhiwo lwayo ludlala indima ebalulekileyo ekuqinisekiseni ukhuseleko lombane. Eli nqaku lijolise ekunikezeni umbono jikelele wezinto ezisetyenziswa kwisithinteli sokuvuza kunye nendlela esisebenza ngayo.

Isithinteli sokuvuza siqulathe ikakhulu iindawo ezintathu ezisisiseko: into yokufumanisa, ikhonkco lokukhulisa eliphakathi kunye nesixhobo sokusebenza. Ngayinye kwezi zinto inceda isithinteli sokuvuza komhlaba sisebenze ngokufanelekileyo nangokufanelekileyo.

Icandelo lokufumanisa liyinxalenye yokuqala yesithinteli sokuvuza kwaye liqulathe i-transformer engalandelelaniyo. Le transformer inoxanduva lokufumanisa nokubonisa nayiphi na i-current yokuvuza. Isebenza njenge-sensor, ijonga rhoqo i-current kwisekethe. Ukuba kufunyenwe ukuvuza kwe-current, i-transformer ilumkisa i-protector ngoko nangoko ngokuvelisa isignali.

Inxalenye yesibini yesithinteli sokuvuza yikhonkco lokukhulisa. Le nxalenye yonyusa imiqondiso yokuvuza ebuthathaka efunyenwe yinxalenye yokufumanisa. Ngokuxhomekeke kwisixhobo, inxalenye yokukhulisa ingaba yeyomatshini okanye ye-elektroniki. Umsebenzi wayo kukuphucula amandla esignali yokuvuza, ngaloo ndlela iququzelela isenzo sokulandelela sesithinteli.

Okokugqibela, i-actuator esebenzayo ifumana isignali evela kwikhonkco lokukhulisa kwaye iqalise isenzo sokukhusela. Emva kokufumana isignali, iswitshi ephambili yesithinteli iyatshintsha ukusuka kwindawo evaliweyo ukuya kwindawo evulekileyo. Oku kuyawunqumla ngokufanelekileyo umbane, kuthintela ukuhamba kwamandla okuqhubekayo. I-actuator esebenzayo isebenza njengento ekhubekisayo ukuze ikhuphe isekethe ekhuselweyo kwigridi yamandla.

Isiseko esiphambili sokugweba ukuba kukho ukuvuza na sixhomekeke ekubeni isithinteli sokuvuza sikwazi ukubona "ukungena" kunye "nokuphuma" kombane. Umbane okwintambo ephilayo umele indawo yokuphuma kombane, kwaye umbane okwintambo engathathi cala umele indawo yokuphuma kombane. Kwiimeko eziqhelekileyo, xa kungekho kuvuza kwisekethe, umbane ongena nophuma kumbane kufuneka ulingane ngobukhulu kwaye uchasene necala.

Nangona kunjalo, xa kukho ukuvuza, umbane obuyela kumbane okwintambo engathathi cala uba mncinci kunombane ophuma kumbane. Lo mahluko kumbane ubonisa ukuba kukho ukuvuza. Xa umbane ovuzayo ufikelela okanye udlula kwinqanaba elithile (ngesiqhelo yi-30mA), umkhuseli wokuvuza usebenza kwaye unqumla iingcingo eziphilayo nezingathathi cala ngaxeshanye.

Kuyimfuneko ukuqinisekisa ukuba umbane ongenayo nophumayo kwiswitshi uhlala ulingana ukuthintela ukufunyanwa kombane ovuzayo ngokungekho semthethweni. Nakuphi na ukuphambuka kolu lungelelwaniso kubonisa ukuba kukho ukuvuza kwaye kubangela isenzo sokukhusela - ukukhubeka. Amaxesha ahlukeneyo anokufuna ukusetyenziswa kwezikhuseli zokuvuza ezineemvakalelo ezahlukeneyo. Kubalulekile ukukhetha isikhuseli sokuvuza esifanelekileyo ngokweemfuno ezithile zesicelo.

Ngamafutshane, ulwakhiwo lwesithinteli sokuvuza luqulathe izinto zokufumanisa, amakhonkco okukhulisa kunye nezixhobo zokusebenza. Ezi zinto zisebenza kunye ukufumanisa umsinga wokuvuza, ukwandisa isignali, kunye nokuqalisa isenzo sokukhusela. Ngokuqonda imigaqo esisiseko yokufumanisa ukuvuza, kuyacaca ukuba kubaluleke kangakanani ukusebenza okuthembekileyo nokusebenza kakuhle kwesithinteli sokuvuza ukuqinisekisa ukhuseleko lombane.