Iintlobo ze-Circuit Breaker kunye neSikhokelo soKhetho

Abaphuli beeSekethe: Ukuqonda Ukubaluleka Kwabo kwiinkqubo zoMbane

Kwimiba yobunjineli bombane kunye nokhuseleko, igama elithi "circuit breaker" libaluleke kakhulu. I-circuit breaker sisitshixo sombane esizenzekelayo esenzelwe ukukhusela iisekethe kumonakalo obangelwa kukugqithisa okanye ii-short circuits. Umsebenzi waso oyintloko kukuphazamisa umbane xa kufunyenwe impazamo, ngaloo ndlela kuthintelwe iingozi ezinokubakho ezifana nemililo yombane okanye umonakalo wezixhobo. Eli nqaku liza kuhlola iinkalo ezahlukeneyo zee-circuit breakers, kubandakanya iintlobo zazo, imisebenzi yazo, kunye nendima ebalulekileyo eziyidlalayo kwiinkqubo zombane zanamhlanje.

Ikwabizwa ngokuba yintoni i-circuit breaker?

I-circuit breaker, eyaziwa ngokuba yi-magneto-thermal breaker, iyinxalenye ebalulekileyo kwiindlela zokufakelwa kombane zanamhlanje.

Imisebenzi yabaphuli beesekethe

Umsebenzi ophambili we-circuit breaker kukujonga umbane kwi-circuit. Xa umbane udlula umda omiselweyo, i-circuit breaker iyaphazamiseka, inqumle umbane. Esi senzo asikhuseli nje kuphela imigca kunye nezixhobo ezixhunyiweyo kodwa sikwaqinisekisa ukhuseleko lwabantu abanokubanjiswa ngumbane.

Kukho imigaqo emibini ephambili yokusebenza kwee-circuit breakers:ubushushukwayeimagnethi. Ii-thermal circuit breakers zisebenzisa ii-bimetallic strips; xa umsinga uphezulu kakhulu, i-bimetallic strip iyatshisa ize igobe, nto leyo ebangela ukuba i-circuit breaker ikhubeke. Ii-magnetic circuit breakers zisebenzisa ii-electromagnets; xa umsinga udlula umda othile, i-electromagnet iyabandakanyeka, nto leyo ebangela ukuba i-circuit breaker ikhubeke. Ezinye ii-circuit breakers zanamhlanje zidibanisa zombini iindlela ukuphucula ukusebenza kokhuseleko.

Iintlobo zee-Circuit Breakers

Ii-circuit breakers ziza ngeentlobo ngeentlobo, nganye yenzelwe ukusetyenziswa kunye neendawo ezithile. Ezona ntlobo zixhaphakileyo ziquka:

1. IiMiniature Circuit Breakers (iiMCB):Ii-Miniature circuit breakers zisetyenziswa kakhulu kwiindawo zokuhlala nakwiindawo zorhwebo ukuthintela ukuxinana kwemithwalo kunye nee-short circuits. Zincinci ngobukhulu kwaye kulula ukuzifaka kwiibhokisi zokusasaza.
2. I-Residual Current Breaker (RCCB):Esi sixhobo sikwabizwa ngokuba yi-RCD, sithintela ukutshayiswa kombane ngokubona ukungalingani kwamandla ombane. Ukuba kukho impazamo, efana nomntu ochukumisa ucingo oluphilayo, i-RCCB iya kukhubeka, ivale umbane.
3. IiMolded Case Circuit Breakers (MCCBs): Ezi circuit breakers zisetyenziswa kwimizi-mveliso kwaye ziyakwazi ukumelana nemisinga ephezulu. IiMCCBs zibonelela ngokhuseleko lokugqithisa, i-short-circuit, kunye nokukhusela iimpazamo zomhlaba.
4. Ii-Air Circuit Breakers (ii-ACB): Ii-air circuit breakers zihlala zisetyenziswa kwizicelo ze-high-voltage kwaye zenzelwe ukuphazamisa imisinga emikhulu. Zihlala zifumaneka kwizikhululo ezincinci nakwizakhiwo ezinkulu zoshishino.
5. Iziphuli zeSekethe zeMagnetic zeHydraulic:Ezi circuit breakers zisebenzisa iindlela ze-hydraulic zokukhubeka, zibonelela ngesisombululo esithembekileyo kwizicelo zamandla aphezulu.

Ukubaluleka kwee-circuit breakers

Ukubaluleka kwee-circuit breakers akunakuthathelwa ngqalelo. Zizinto ezibalulekileyo eziqinisekisa ukusebenza ngokukhuselekileyo nangokuthembekileyo kweenkqubo zombane. Ngokuthintela ukugqithiswa kakhulu kunye nee-short circuits, ii-circuit breakers zinceda ekunciphiseni umngcipheko womlilo wombane, umonakalo wezixhobo, kunye nokwenzakala komntu. Ngaphezu koko, xa kukho impazamo, ii-circuit breakers zinokusetwa kwakhona ngokukhawuleza nangokulula, ngaloo ndlela ziphucula ukusebenza kakuhle kwenkqubo yombane.

Ukongeza kwimisebenzi yazo yokukhusela, ii-circuit breakers zidlala indima ebalulekileyo ekuthobeleni imithetho kunye nemigangatho yombane. Iindawo ezininzi zifuna ukuba ii-circuit breakers zifakwe kwizakhiwo zokuhlala nezezorhwebo ukuqinisekisa ukhuseleko kunye nokuthembeka.

Kufuphi

Ngamafutshane, ii-circuit breakers zizixhobo ezibalulekileyo kwicandelo lobunjineli bombane. Zikhusela ii-circuit kwi-overloads kunye nee-short circuits, nto leyo ezenza zibe zibalulekileyo ekugcineni ukhuseleko lweendawo zokuhlala nezemizi-mveliso. Njengoko ubuchwepheshe buqhubeka, ii-circuit breakers ziyaqhubeka nokukhula ukuze zibonelele ngamanqanaba aphezulu okhuseleko kunye nokusebenza kakuhle. Ukuqonda iintlobo ezahlukeneyo zee-circuit breakers kunye nemisebenzi yazo kubalulekile kuye nabani na osebenza kwicandelo lombane, njengoko kuqinisekisa ukusebenza ngokukhuselekileyo nangokufanelekileyo kweenkqubo zombane. Nokuba kusemakhaya, kwiiofisi, okanye kwimizi-mveliso, ii-circuit breakers zihlala ziyinxalenye ebalulekileyo yeziseko zombane zanamhlanje.