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Old 03-03-2009, 11:12 AM   #1
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Lightbulb Discrimination for a residential
Does anyone know how to make discrimination in a residential with only IEC 60898 MCBs in the Main distribution board ? I mean if there is a faulty electric circuit, only D3 circuit-breaker trip (opens), but the D1 & D2 circuit-breakers remains closed (i.e. only the circuit-breaker placed immediately upstream of the fault will trip) How to coordinate the current rating, breaking capacity, tripping curves for the D1, D2, D3 MCBs ?
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Last edited by dealova; 03-03-2009 at 11:19 AM.
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Old 03-03-2009, 11:16 AM   #2
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Last edited by dealova; 03-03-2009 at 11:22 AM.
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