Iingxaki Ezisebenzayo Okufanele Zithintelwe Kuzo Zonke Iintlobo Zee-Circuit Breakers: Ziphephe Iimpazamo Ezi-5 Eziqhelekileyo Zombane Ukuqinisekisa Ukusetyenziswa Kombane Okukhuselekileyo

Kwinyanga ephelileyo, ingcali yombane kwifektri yokuvelisa yenze impazamo ebonakala ingenamsebenzi ngelixa igcina i-residual current circuit breaker (RCCB): yabuyisela uqhagamshelo lwentambo yomhlaba ngaphandle kokujonga kabini. Kwiyure enye, kwenzeke impazamo yokuvuza kwindawo yokusebenzela, kodwa i-RCCB ayizange ikwazi ukukhubeka, nto leyo eyabangela ukubetheka kombane kumsebenzi yaza yanyanzela isityalo ukuba sivale ukuze silungiswe. Esi siganeko asikokwahlukileyo—ngaphezulu kwama-60% okusilela kwe-circuit breaker kubangelwa kukusebenza okungafanelekanga, okunganyusi nje kuphela iindleko zokulungisa kodwa kukwabangela neengozi ezinkulu zokhuseleko. Namhlanje, siza kuhlalutya iimpazamo ezi-5 eziqhelekileyo ezenziwa yingcali yombane xa isebenza nazo zonke iintlobo ze-circuit breakers, ukukunceda uphephe iimpazamo kwaye uqinisekise ukusetyenziswa kombane ngokukhuselekileyo.

Ingozi ephambili yokusebenza ngendlela engafanelekanga ikwimeko yokungabonakali kwayo kunye nokonakala kwayo. Iimpazamo ezininzi ezincinci, ezifana noqhagamshelo lwe-terminal olukhululekileyo okanye uhlengahlengiso lweparamitha olungaqhelekanga, zisenokungabangeli ukusilela kwangoko kodwa ziya konakalisa kancinci ukusebenza kwe-circuit breaker, nto leyo ekhokelela kwiingozi zokugcwala, i-short circuit, okanye ukuvuza ngokuhamba kwexesha. Iintlobo ezahlukeneyo ze-circuit breakers (Air Circuit Breakers - ACB, Molded Case Circuit Breakers - MCCB, Miniature Circuit Breakers - MCB, Residual Current Circuit Breakers - RCCB, Residual Current Breaker ene-Overcurrent protection--RCBO) zinezakhiwo kunye nemisebenzi eyahlukeneyo, ngoko ke iingozi kunye neendlela zokuthintela ukusebenza ngendlela engafanelekanga nazo ziyahluka.

Nazi iindlela ezi-5 eziqhelekileyo ezingafanelekanga ezenziwa ngoogesi ngazo zonke iintlobo zee-circuit breakers, kunye nesikhokelo sobuchwephesha sokuziphepha:

Impazamo1(i-ACB): Ukuvala ngesandla ngokungaboniyo ngaphandle kokunciphisa umthwalo, okukhokelela ekutshisweni ziintambo, ukujikeleza okufutshane, kwanokwenzakala nomqolo.Isikhokelo:Landela inkqubo echanekileyo yokuvala i-ACB kwiimeko zomthwalo ophezulu—qala ngokunqumla umthwalo, jonga isekethe ukuba ayinaziphene na, uze uvale iswitshi ukuze uphephe ukusebenza ngokuthe ngqo phantsi komthwalo.

Impazamo2(I-MCCB):Ukuvulwa nokuvalwa rhoqo ngesandla, okubangela ukuguguleka kwendlela yokusebenza, ukuncipha komthamo wokuphuka, kunye nobomi benkonzo obufutshane.Isikhokelo:Cacisa amaxesha afanelekileyo okuvula nokuvala i-MCCB—phepha imisebenzi eyenziwa ngesandla rhoqo ngaphandle kokuba kuyimfuneko, kwaye usebenze ngokuhambelana nencwadi yesikhokelo sezixhobo.

Impazamo3(MCB):Ukutshintsha i-MCB ngokungacwangciswanga ngombane ophezulu, nto leyo ekhokelela ekukhuselekeni okungenamvakalelo kunye nokutsha kwezixhobo ngenxa yokungaphumeleli ukukhubeka ngexesha lokugqithisa kakhulu.Isikhokelo:Khetha i-MCB rated current ngokwe-load yokwenyani—ungaze uyitshintshe nge-specification enkulu ngokungakhethiyo, njengoko iya kulahlekelwa ngumsebenzi wokukhusela ukugqithiswa kakhulu.

Impazamo 4 (RCCB/RCBO):

I. Imisebenzi Engachanekanga Eqhelekileyo

Iimpazamo eziQhelekileyo:

1. Uqhagamshelo olubuyela umva/olungachanekanga lweengcingo ezingathathi cala neziphilayo, olonakalisa isekethe yokubhaqwa kwangoku eseleyo;

2. Ukungaphumeleli ukwenza uvavanyo lwangoku olusele olulinganisiweyo ngeqhosha lovavanyo ixesha elide, nto leyo ekhokelela ekungafumaneki kwemisebenzi yokukhusela;

3. Ukunciphisa i-current module yokukhusela i-residual current ngaphandle kwemvume ukuze kucinywe ukhuseleko oluphambili ngenkani.

Iimpazamo ezithile ze-RCCB:

1. Ukusetyenziswa okuzimeleyo kokukhusela ukugqithisa/ukujikeleza okufutshane (ii-RCCB azinawo umsebenzi wokukhusela ukudlula kombane);

2. Ulandelelwano olungalunganga lokufakelwa xa kudityaniswa nee-circuit breakers (ukufaka i-RCCB ngaphambi kwe-circuit breaker).

Iimpazamo ezithile ze-RCBO:

1.Ukukhethwa kuphela ngeeparameter zangoku eziseleyo ngelixa kunganakwa ukufanisa umsinga olinganisiweyo wemithwalo, okubangela ukukhubeka rhoqo komsinga ogqithisileyo;

2. Ukuyisebenzisa nje njengesixhobo sokukhusela intsalela yamandla ombane kwaye ingaphumeleli ukusebenzisa umsebenzi wayo wokukhusela i-overcurrent edibeneyo, nto leyo ebangela ukungasebenzi kakuhle kwesekethe ngenxa yokudibanisa i-circuit breaker engafunekiyo.