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DIRECT-AXIS TRANSIENT SHORT-CIRCUIT TIME CONSTANT [1 record]

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Record 1 2014-08-29

English

Subject field(s)
  • Measurements of Electricity
  • Electric Rotary Machines
DEF

The time required, following a sudden change in operating conditions, for the slowly changing component of direct-axis short-circuit armature current to decrease to 1/e, that is 0.368 of its initial value, the machine running at rated speed.

OBS

direct-axis transient short-circuit time constant: term and definition standardized by the International Electrotechnical Commission (IEC).

French

Domaine(s)
  • Mesures de grandeurs électriques
  • Machines tournantes électriques
DEF

Temps nécessaire pour que, à la suite d'une variation brusque des conditions de fonctionnement, la composante à amortissement lent du courant longitudinal dans l'induit en court-circuit décroisse jusqu'à 1/e, c'est-à-dire 0,368 fois sa valeur initiale, la machine tournant à sa vitesse assignée.

OBS

constante de temps transitoire longitudinale en court-circuit : terme et définition normalisés par la Commission électrotechnique internationale (CEI).

Spanish

Campo(s) temático(s)
  • Medida de la electricidad
  • Máquinas rotativas eléctricas
DEF

Tiempo necesario para que la componente de amortiguamiento rápido de la tensión del inducido en circuito abierto, debida al flujo longitudinal, presente en los primeros pocos períodos que siguen a una variación brusca de las condiciones de funcionamiento, decrezca hasta l/e, es decir, 0,368 veces su valor inicial, girando la máquina a su velocidad nominal.

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