I-MCCB Vs MCB Vs RCBO: Zithetha Ntoni?

I-MCCB yimeko ebunjiweyo yomahluli wesekethe, kwaye i-MCB yi-miniaturized circuit breaker. Zombini zisetyenziselwa kwiisekethe zombane ukubonelela ngokhuseleko olugqithisiweyo. Ii-MCCBs ziqhele ukusetyenziswa kwiinkqubo ezinkulu, ngelixa ii-MCBs zisetyenziswa kwiisekethe ezincinci.

I-RCBO yindibaniselwano ye-MCCB kunye ne-MCB. Isetyenziswe kwiisekethe apho zombini i-overcurrent kunye ne-short-circuit protection kufuneka. Ii-RCBOs azixhaphakanga kune-MCCBs okanye ii-MCBs, kodwa ziyakhula ekuthandeni ngenxa yokukwazi ukubonelela ngeentlobo ezimbini zokhuseleko kwisixhobo esinye.

I-MCCBs, i-MCBs, kunye ne-RCBOs zonke zisebenza umsebenzi ofanayo osisiseko: ukukhusela iisekethe zombane emonakalweni ngenxa yeemeko ezigqithisileyo zangoku. Nangona kunjalo, ngamnye uneengenelo kunye nokungalunganga. Ii-MCCB zezona zikhulu kwaye zibiza kakhulu kolu khetho zintathu, kodwa ziyakwazi ukumelana nemisinga ephezulu kwaye zibenobomi obude.

Ii-MCB zincinci kwaye azibizi kakhulu, kodwa zinobomi obufutshane kwaye zinokuphatha imisinga esezantsi kuphela.Ii-RCBO zezona zihambele phambiliukhetho, kwaye zinika iinzuzo zombini MCCBs kunye MCBs isixhobo esinye.

Xa kukho into engaqhelekanga efunyenweyo kwisekethe, i-MCB okanye i-miniature circuit breaker iyicima ngokuzenzekelayo isekethi. Ii-MCBs ziyilelwe ukuva lula xa kukho umsinga ogqithisileyo, odla ngokwenzeka xa kukho isekethe emfutshane.

Isebenza njani i-MCB? Kukho iindidi ezimbini zabafowunelwa kwi-MCB - enye ilungisiwe kwaye enye iyasuswa. Xa i-current flowing through the circuit yanda, ibangela ukuba abafowunelwa abahambahambayo banqanyulwe kubafowunelwa abasisigxina. Oku ngokufanelekileyo "kuvula" isiphaluka kwaye kunqande ukuhamba kombane kumbane oyintloko. Ngamanye amazwi, i-MCB isebenza njengomlinganiselo wokukhusela ukukhusela iisekethe ekugqithiseni kunye nomonakalo.

I-MCCB (Ityala elibunjiweyo leSaphuli seSekethe)

Ii-MCCBs zenzelwe ukukhusela isiphaluka sakho ekulayisheni kakhulu. Zibonisa amalungiselelo amabini: enye yeyokudlula ngaphezulu kunye neyobushushu obugqithisileyo. I-MCCBs nayo inokutshintsha okuqhutywa ngesandla ukukhubekisa isekethe, kunye nabafowunelwa be-bimetallic eyandisa okanye isivumelwano xa ubushushu be-MCCB butshintsha.

Zonke ezi zinto zidibana ukuze zenze isixhobo esithembekileyo, esomeleleyo esinokunceda ukugcina isekethe yakho ikhuselekile. Ngombulelo kuyilo lwayo, i-MCCB inokuba lukhetho olukhulu kwiintlobo ngeentlobo zezicelo.

I-MCCB yi-breaker circuit inceda ukukhusela izixhobo emonakalweni ngokuqhawula unikezelo oluphambili xa i-current idlula ixabiso elimiselweyo. Xa ukwanda kwangoku, abafowunelwa kwi-MCCB banda kwaye bafudumala baze bavule, ngaloo ndlela baphule isiphaluka. Oku kuthintela umonakalo ongakumbi ngokukhusela izixhobo ezivela kunikezelo oluphambili.

Yintoni eyenza i-MCCB kunye ne-MCB zifane?

I-MCCBs kunye ne-MCBs zombini ii-breakers zesekethe ezibonelela ngento yokukhusela kwisekethe yamandla. Ikakhulu isetyenziswa kwiisekethe zombane ophantsi kwaye ziyilelwe ukuva nokukhusela isekethe kwiisekethe ezimfutshane okanye kwiimeko ezingaphaya kwamandla.

Ngelixa babelana ngezinto ezininzi ezifanayo, ii-MCCBs ziqhele ukusetyenziselwa iisekethe ezinkulu okanye ezo zinemisinga ephezulu, ngelixa ii-MCBs zifaneleke ngakumbi kwiisekethe ezincinci. Zombini iintlobo ze-circuit breaker zidlala indima ebalulekileyo ekuqinisekiseni ukhuseleko lweenkqubo zombane.

Yintoni eyahlula i-MCCB kwi-MCB?

Owona mahluko uphambili phakathi kwe-MCB kunye ne-MCCB sisikhundla sabo. I-MCB inomlinganiselo ongaphantsi kwe-100 amps kunye ne-amps engaphantsi kwe-18,000 ephazamisayo, ngelixa i-MCCB ibonelela ngee-amps eziphantsi njenge-10 kunye ne-2,500 ephezulu. Ukongeza, i-MCCB inento yohambo ehlengahlengiswayo kwiimodeli eziphambili. Ngenxa yoko, i-MCCB ifaneleke ngakumbi kwiisekethe ezifuna umthamo ophezulu.

Okulandelayo ngomnye umahluko obalulekileyo phakathi kwezi ntlobo zimbini zabaphuli beesekethe:

I-MCCB luhlobo oluthile lwe-breaker circuit esetyenziselwa ukulawula nokukhusela iinkqubo zombane. Ii-MCBs zikwayi-circuit breakers kodwa ziyahluka kuba zisetyenziselwa izixhobo zasekhaya kunye neemfuno zamandla aphantsi.

Ii-MCCBs zingasetyenziselwa imimandla efunekayo yamandla aphezulu, njengamashishini amakhulu.

Ii-MCBsube nesekethe emiselweyo yokukhwela ngelixa ukwi-MCCBs, isekethe yohambo iyasuswa.

Ngokubhekiselele kwii-amps, ii-MCBs zinee-amps ezingaphantsi kwe-100 ngelixa i-MCCBs ingaba ne-amps ephezulu njenge-2500.

Akunakwenzeka ukuvula nokucima i-MCB ukude ngelixa kunokwenzeka ukwenza njalo nge-MCCB ngokusebenzisa ucingo lwe-shunt.

Ii-MCCB zisetyenziswa ikakhulu kwiimeko apho kukho umsinga onzima kakhulu ngelixa ii-MCBs zinokusetyenziswa kuyo nayiphi na isekethe ephantsi yangoku.

Ke, ukuba ufuna ibreaker yesekethe yekhaya lakho, uya kusebenzisa i-MCB kodwa ukuba ufuna enye kwindawo yoshishino, uya kusebenzisa iMCCB.