00510nam a2200145Ia 4500008005200000020001500052082001900067100002000086245005100106260003600157300000900193650006500202650005000267650004700317200103s       1972    ||||xx |||||||||||||| ||und||  a0273318845  a621.31921bROE  aRoeper, Richard 0aShort-circuit currents in three-phase networks  bPitman PublishingaLondonc1972  a98p.  aMost important kinds of short-circuits and their calculation  aVariation of short-circuit currents with time  aTreatment of networks and calculation data