Umahluko phakathi kwe-molded case circuit breaker kunye ne-miniature circuit breaker

I-molded case circuit breaker(I-MCCB) ibonelela ngokhuseleko lomthwalo ogqithisiweyo kunye nesekethe emfutshane kwinkqubo yokuhambisa amandla ombane ophantsi kunye nelophu yokukhusela iimoto.Ngenxa yokuthembeka kunye nokuzinza kwayo, isetyenziswe ngokubanzi kwishishini.Umqhekezi wesekethe omncinci(MCB) iphinda isetyenziswe kuluhlu olubanzi kunye nenani elikhulu leemveliso ze-circuit breaker, umsebenzi oyintloko kukubonelela ngokhuseleko lokwakha isixhobo sokusabalalisa amandla ombane.Ngenxa yokuba bobabini bangabakwa-breaker circuit, kunyeI-MCCBubukhulu becala isetyenziselwa umthamo omncinci wokuvula nokucima, ngoko ke uqonde umahluko phakathi kwezi zimbini, khetha imveliso eyiyo iyinyani kwaye ibalulekile.Nantsi ingcaciso ekhawulezayo.

Masiqale ngokufana okusisiseko, kuba bobabini abaphuli beesekethe, bobabini kufuneka balandele imigangatho yemveliso esisiseko, kwaye basebenza ngendlela efanayo.Makhe sithethe ngomahluko phakathi kwabo.Ngokuqhelekileyo, kukho ezi ngongoma zilandelayo:

1. Iiparamitha ezahlukeneyo zombane
2. Iiparamitha zoomatshini ezahlukeneyo
3. Iimeko ezahlukeneyo zokusebenza

Ukongeza ibekwe kwi-engile yokukhetha kwaye uthenge, thetha ezimbalwa zombini umahluko ngokuthe ngqo.

Ukalo lwangoku

I-molded case circuit breakersbabe nebanga langoku ukuya kuthi ga ku-2000A.Ibakala eliphezulu langoku le-miniature breaker circuit lingaphakathi kwe-125A.Ngenxa yomsantsa phakathi kwezi zibini kumthamo, kumsebenzi othile, indawo esebenzayo yemeko yesaphuli sesekethe esibunjiweyo inkulu kunoi-breaker circuit encinci, kunye nentambo yokufikelela inzima kakhulu, inokufikelela ngaphezu kwe-35 square metres, kunye nei-breaker circuit encinciilungele kuphela ezi 10 square metres zilandelayo zocingo.Ngoko ke, imeko yangaphakathi ngokubanzi, igumbi elikhulu lifaneleke ngakumbi ukukhethwa kwecala elibunjiweyo le-breaker circuit.

Ukuhlohla

I-molded case circuit breakerikakhulu i-screw inyuselwe, kulula ukuyicofa, umfowunelwa olungileyo, ukusebenza okuzinzileyo.Kwaye i-micro circuit breaker ifakwe ngokukodwa kwi-rail yesikhokelo, ngamanye amaxesha ngenxa ye-torque eyaneleyo kwaye ibangele ukudibanisa kakubi.Ngenxa yeendlela zabo zokufakela ezahlukeneyo, abaphuli beesekethe ezibunjiweyo zizinzile kwaye kunzima kakhulu ukuzifaka kunokoabaphuli beesekethe ezincinci.

Ukusebenza kunye nobomi

Ngokusebenza.I-molded case circuit breakerithatha iiseti ezimbini zezixhobo zokukhusela i-overcurrent kunye nesekethe emfutshane ngokulandelanayo, kunye nexabiso lesenzo sokukhusela i-overcurrent inokulungiswa ngesandla, ilula kwaye ikhawuleza.I-Miniature circuit breakers yabelana ngesethi yezixhobo ze-overcurrent kunye ne-short circuit, kwaye okwangoku ayikwazi ukulungelelaniswa, okubangela ukuba kwiimeko ezininzi zingakwazi ukusombulula ingxaki.Umgama wesigaba somgama wesiphaluka sesekhethi yeplastiki, kunye ne-arc cover, i-arc yokucima ikhono lomelele, inokumelana nobukhulu be-short-circuit current, kwaye akukho lula ukubangela i-circuit short circuit, ukuze ubomi benkonzo bube ngaphezu kwe-miniature breaker circuit.

Ukuguquguquka kokusetyenziswa

Ngoku kuhlonipha,ii-breakers zesekethe ezibunjiweyozivelele ngakumbi, kwaye ukuguquguquka kwazo ekusetheni kungcono kuneziqhekeza zesekethe ezincinci.Izixhobo ezigqithisiweyo kunye nezifutshane zokhuseleko lwesekethe yeI-MCCBzizimele, kwaye ixabiso lesenzo sokukhusela ngokugqithisileyo linokulungiswa ngokuguquguqukayo.Ukhuseleko lwangoku kunye nokhuseleko lwesekethe emfutshane yeMCBzizixhobo ezidityanisiweyo, kwaye kukho iziphene ezithile kububhetyebhetye bolawulo.Ngokutsho le meko ngasentla kubonakala ukuba MCB emoyeni, kodwa enyanisweni ixesha elithile, okanye kufuneka ukhetheMCB.

Ngokomzekelo, imfuneko yokuphucula ukhuseleko lomgca, ngenxa yokuba i-MCB isenzo sensitiy siphezulu, isenzo sokuphuka sikhawuleza, silungele ngakumbi ukukhuselwa komgca kunye nezixhobo zombane.Ingabonwa ukuba zombini zineenzuzo zabo kwaye zilungele ukusetyenziswa, isitshixo kukuqonda ngokupheleleyo umahluko phakathiityala elibunjiweyo umaphuli wesekethekunye ne-miniature circuit breaker, kwaye ngokweemfuno zabo zokukhetha.