Kufotokozera Kwachidule:

General

S7 ndi yamphamvu kwambiri yochepetsera mphamvu yowononga chifukwa cha short circuit kupita ku gawo lalikulu kwambiri. Ntchito: Kuteteza zingwe ndi zidats motsutsana ndi overload ndi short circuit.

Malamulo ambiri posankha MCB.

Deta yaukadaulo ya netiweki pamalo omwe aganiziridwa:

Makina a nthaka, mphamvu yafupikitsa yamagetsi pamalo oyikapo chopasula magetsi. khalani nthawi zonse Mphamvu yocheperako poyerekeza ndi mphamvu yosweka ya chipangizochi, mphamvu yamagetsi ya netiweki ndi yachibadwa.

Pali makhalidwe atatu ozungulira a ntchito ya maginito:

Chitetezo cha B curve (3-5In) ndi kuwongolera ma circuits motsutsana ndi zingwe zazitali mu TN ndi IT SYSTEMS.

Chitetezo ndi kuwongolera ma circuits a C curve (5-10In) ku overloads ndi short-circuits; chitetezo cha katundu wotsutsa komanso woyambitsa zinthu wokhala ndi mphamvu yochepa yolowera.

Chitetezo cha D curve (10-20In) ndi kuwongolera ma circuits ku overloads short-circuits; chitetezo cha mabwalo omwe amapereka katundu wokhala ndi mphamvu yolowera kwambiri pa the kutseka kwa dera (LV/LV) ma transformer, nyali zophwanyika).