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4. Cut-off time
4.1 General
Up to now, we've represented DC outage problems almost exclusively in the (u, i ) plane, which is interesting for understanding the phenomena, but devoid of the time scale.
As soon as we know Δu for each value of i, we can easily deduce the cut-off time. For a given evolution of arc voltage versus current, the cut-off time t C is directly proportional to the circuit inductance L, since, according to the relation (3) :
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Cut-off time
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References
- - De façon générale, on se reportera utilement aux travaux du Groupe 13 Appareillage de coupure de la Conférence Internationale des Grands Réseaux Électriques (CIGRE), publiés dans la revue Electra et dans les comptes rendus des sessions qui se tiennent à Paris les années paires. Pour la moyenne tension, on se référera aux travaux des Congrès Internationaux des Réseaux...
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