Kev Taw Qhia rau molded case circuit breaker tripping

Lub tshuab hluav taws xob molded case (MCCB) yog ib feem tseem ceeb ntawm kev lag luam faib hluav taws xob qis-voltage. Nws lub luag haujlwm tseem ceeb yog txiav lossis cais cov teeb meem tam sim no hauv qhov ib txwm thiab qhov ntsuas kom ntseeg tau tias muaj kev nyab xeeb ntawm cov kab thiab cov khoom siv. Ib qho ntawm cov yam tseem ceeb ntawm MCCB yog nws lub tshuab tripping, uas ua lub luag haujlwm tseem ceeb hauv kev teb rau cov xwm txheej txhaum cai thiab tiv thaiv kev phom sij.

MCCBs muaj ntau hom kev mus los uas siv tau, txhua hom tsim los daws teeb meem tshwj xeeb ntawm qhov teeb meem thiab kev ua haujlwm. Txoj kev thawj zaug yog kev sib nqus ib zaug xwb, uas lub tshuab hluav taws xob tsuas yog mus los thaum muaj qhov teeb meem luv luv tshwm sim hauv kab. Hom kev mus los no feem ntau yog siv rau ntawm cov cua sov lossis cov tshuab hluav taws xob uas muaj kev tiv thaiv overload los muab kev tiv thaiv tsim nyog rau cov ntawv thov no.

Thermal-magnetic tripping, tseem hu ua compound tripping, yog lwm hom tseem ceeb ntawm cov molded case circuit breakers. Hom no ua rau lub circuit breaker trip thaum muaj qhov yuam kev luv luv tshwm sim ntawm kab lossis cov kab hluav taws xob ntau dua li qhov ntsuas hluav taws xob ntev. Hom trip no feem ntau siv rau hauv cov xwm txheej faib hluav taws xob dav dav, muab kev tiv thaiv dav dav rau ntau yam kev siv.

Ntxiv rau cov hom kev siv hluav taws xob no, kev siv hluav taws xob tripping tau dhau los ua ib qho thev naus laus zis zoo rau MCCBs. Cov khoom siv hluav taws xob uas muaj cov chav siv hluav taws xob trip muaj qhov hloov pauv magnetic trip current, thermal trip current thiab trip time, uas ua rau muaj kev ywj pheej thiab kev raug ntawm kev tiv thaiv cov kab ke hluav taws xob. Txawm hais tias kev siv hluav taws xob tripping muaj kev siv dav dua, nws tsim nyog sau cia tias MCCBs siv cov thev naus laus zis no feem ntau kim dua vim lawv cov yam ntxwv siab heev.

Tsis tas li ntawd xwb, cov cuab yeej tshwj xeeb siv tau los tiv thaiv cov voj voog ntawm lub cev muaj zog, nrog rau cov hluav taws xob sib nqus feem ntau tshaj 10 npaug ntawm cov hluav taws xob ntsuas. Tus qauv tsim no pab tiv thaiv cov hluav taws xob siab tshaj plaws thaum lub cev muaj zog pib, ua kom ntseeg tau tias kev ua haujlwm du thiab txhim khu kev qha.

Nrog nws cov kev ua haujlwm sib txawv, cov khoom siv hluav taws xob molded case circuit breakers muab kev daws teeb meem dav dav rau kev tiv thaiv cov kab ke faib hluav taws xob qis. Txawm hais tias nws yog ib qho kev sib nqus tripping, thermal magnetic tripping, electronic tripping lossis kev tiv thaiv lub cev muaj zog, muaj cov khoom siv hluav taws xob molded case circuit breaker uas ua tau raws li qhov xav tau tshwj xeeb ntawm txhua daim ntawv thov, ua rau nws yog qhov khoom muaj nqis tseem ceeb rau kev ua kom muaj kev nyab xeeb thiab kev ntseeg siab ntawm cov kab ke hluav taws xob.