Eyona Mveliso idumileyo - CNAISO MCB

1. IsishwankatheloyeMCB 

I-Micro Circuit Breaker / Miniature Circuit Breaker, sesona sixhobo sisetyenziswa kakhulu sokukhusela i-terminal ekwakheni izixhobo zokuhambisa amandla ombane.Isetyenziselwa isigaba esisodwa kunye nesigaba sesithathu sesiphaluka esifutshane, ukugqithiswa kunye nokukhuselwa kwe-overvoltage ngaphantsi kwe-125A, kubandakanywa i-pole-pole 1P, i-2-pole 2P, i-3-pole 3P, kunye ne-4P-pole 4P.

2. NjaniMCBSebenza?

Ii-breaker circuits ezincinci zenziwe ngeendlela zokusebenza, oonxibelelwano, izixhobo zokukhusela (ukukhutshwa okuhlukeneyo), kunye neenkqubo zokucima i-arc.Abafowunelwa bayo abaphambili baqhutywa ngesandla okanye bavalwe ngombane.Emva kokuba uqhagamshelwano oluphambili luvaliwe, indlela yohambo lwasimahla ivalela umfowunelwa oyintloko kwindawo evaliweyo.I-coil yokukhutshwa kwe-overcurrent kunye ne-thermal element yokukhululwa kwe-thermal idibaniswe kwichungechunge kunye nesekethe eyintloko, kwaye i-coil yokukhutshwa kwe-undervoltage ixhunywe ngokuhambelana nokunikezelwa kwamandla.Xa isiphaluka sifutshane okanye sigxininiswe kakhulu, i-armature yokukhululwa kwe-overcurrent itsalwa ukuze yenze indlela yokuhamba ngokukhululekileyo, kwaye uqhagamshelwano oluphambili luqhawula isiphaluka esikhulu.Xa i-circuit igcwele kakhulu, i-thermal element yokukhutshwa kwe-thermal iya kufudumala kwaye igobe i-bimetal, ityhale indlela yokukhululwa yamahhala ukuba isebenze.Xa isiphaluka singaphantsi, i-armature ye-undervoltage release ikhutshwe.Kwakhona uvule indlela yohambo lwasimahla

3.Injongo yeMCB ?

Kuyilo lwesakhiwo soluntu, izaphuli zesekethe ezinevoltage ephantsi zisetyenziselwa ukulayisha ngaphezulu komgca, imfutshane-mfutshane, ngaphezulu-yangoku, ilahleko yombane, i-voltage engaphantsi, isiseko, ukuvuza, ukutshintshela okuzenzekelayo kwemithombo yombane emibini, kunye nokhuseleko kunye nokusebenza kweenjini ngexesha. ukuqala okungaqhelekanga.Imigaqo Ukongeza kokuthobela imigaqo esisiseko efana neempawu zokusingqongileyo zokusetyenziswa kwezixhobo zombane ezine-voltage ephantsi (jonga i-Industrial and Civil Power Distribution Design Manual), le miqathango ilandelayo kufuneka ithathelwe ingqalelo:

I-1) I-voltage elinganisiweyo ye-breaker circuit akufanele ibe ngaphantsi kwe-voltage elinganisiweyo yomgca;

2) Isantya esilinganisiweyo somjikelo wesiphaluka kunye nomlinganiselo olinganisiweyo wokukhululwa kwe-overcurrent ayikho ngaphantsi kwe-current counted of the line;

3) Ukulinganiswa kwamandla okunciphisa i-short-circuit ye-circuit breaker ayikho ngaphantsi kobuninzi be-short-circuit current kumgca;

4) Ukukhethwa kwee-breaker circuit breakers kufuneka kuthathelwe ingqalelo ixesha elifutshane lokulibaziseka kwi-short-circuit on-off capability kunye nokulungelelaniswa phakathi kwamanqanaba okukhusela okulibaziseka;

5) I-voltage elinganisiweyo yokukhululwa kwe-undervoltage ye-breaker circuit ilingana ne-voltage elinganisiweyo yomgca;

6) Xa isetyenziselwa ukukhuselwa kwemoto, ukukhethwa kwe-breaker circuit kufuneka kuthathelwe ingqalelo ukuqala kwemoto kwaye kuyenze ingasebenzi ngexesha lokuqala;bona "Iindustrial and Civil Power Distribution Design Manual" ukubala uyilo;

7) Ukukhethwa kwee-circuit breakers kufuneka kwakhona kuthathelwe ingqalelo ukulungelelaniswa okukhethiweyo kwee-circuit breakers kunye ne-circuit breakers, ii-circuit breakers kunye ne-fuses.

4.Kutheni uYueqing AIso?

4.1: Ubunjineli obugcweleyo kunye nenkxaso yobugcisa: Abavelisi be-3 abaqeqeshiweyo, kunye neqela lenkonzo yobugcisa.

4.2: Umgangatho nguNo1, inkcubeko yethu.

4.3: Amaxesha okukhokela ngokukhawuleza: “Ixesha ligolide” kuwe nakuthi

4.4: 30min impendulo ngokukhawuleza: sineqela lobuchwephesha, 7 * 20H

Fumana ukuthembela kwabathengi ngenxa yodumo lwabo oluqinisekisiweyo lokuthembeka, ukusebenza kunye nobomi obude.

Ukuba unombuzosokanye nayiphi na imveliso efunekayo, nceda uzive ukhululekile ukuba uqhagamshelane nam.