Intsingiselo yeeparameter ezahlukeneyo kwi-molded case circuit breaker (MCCB) shell

Abaphuli beesekethe zetyala elibunjiweyo (I-MCCB) zizinto ezibalulekileyo kwiinethiwekhi zokusasazwa kwamandla, zibonelela ngokhuseleko kwiisekethe ezimfutshane kunye nokugqithisa. Ukuqonda iiparameter ezahlukeneyo ngaphakathi kwe-MCCB enclosure kubalulekile ukuqinisekisa ukusebenza ngokufanelekileyo kunye nokhuseleko lwenkqubo yombane.

I-voltage elinganisiweyo i-Ue yi-voltage yenkqubo, ephezulu nge-5% kune-voltage eqhelekileyo kumthwalo wombane. I-plastic case circuit breaker yenzelwe ukusebenza nge-voltage elinganisiweyo ye-impulse Uimp=12KV kunye ne-voltage elinganisiweyo ye-insulation Ui 400V. Kufuneka kuqatshelwe ukuba i-voltage yenethiwekhi yokusasazwa akufuneki idlule i-voltage elinganisiweyo ye-insulation Ui ukuthintela nayiphi na ingozi enokubakho.

Umlinganiselo wangoku we-125 Amp umele umthamo ophezulu wokuthwala wamandla we-MCCB. Ukongeza, ipharamitha yamandla okusebenza ngokukhawuleza II yokukhululwa kwemagnethi yi-10In, apho i-In iphindwe kalishumi kunomlinganiselo wamandla olinganisiweyo (1250A), okuqinisekisa isenzo esikhawulezayo nesisebenzayo phantsi kweemeko zesekethe emfutshane.

Kwicala lasekunene leshelufu yesekethe yekheyisi eboshiweyo, umthamo we-segmenting we-limit limit short-circuit segmenting capacity Icu=35KA kunye nomthamo we-operating short-circuit breaking capacity Ics=22KA zibonisa amandla e-molded case circuit breaker ukusingatha iimeko ze-short-circuit ngaphandle kokuchaphazela ukhuseleko. I-MCCB yenzelwe ukuba ibe nomgangatho wobushushu obuphakathi kwe--5°C ukuya kwi-40°C kunye ne-frequency ye-50/60 Hz, okwenza ukuba ifaneleke kwiimeko ezahlukeneyo zendalo.

Ukongeza, i-MCCB iyahambelana nemigangatho yemveliso i-IEC/EN60947-2, iqinisekisa ukuthotyelwa kwemigaqo yomgangatho nokhuseleko. Olu hlengahlengiso lugxininisa ukuthembeka nokusebenza kwe-MCCB, lunika abasebenzisi uxolo lwengqondo malunga nokusebenza kwayo kakuhle kunye nokuqina kwexesha elide.

Ngamafutshane, ukuqonda iiparameters ngaphakathi kwe-MCCB enclosure kubalulekile ekukhetheni isixhobo sokukhusela isekethe esifanelekileyo kwinkqubo yombane. Ngoyilo lwayo oluqinileyo kunye nokuthobela imigangatho yemveliso, i-MCCB iqinisekisa ukusebenza okukhuselekileyo nokuthembekileyo kwiindlela ezahlukeneyo zokusebenza.