NF EN 60255-127

Measuring relays and protection equipment - Part 127 : functional requirements for over/under voltage protection

Le présent document spécifie les exigences minimales relatives aux relais à maximum/minimum de tension. Il inclut les spécifications de la fonction de protection, les caractéristiques de mesure et les caractéristiques de temporisation. Ce document définit les facteurs d'influence affectant la précision, en conditions de régime établi et les caractéristiques de performance en conditions dynamiques. Les méthodologies d'essai pour vérifier les caractéristiques de performance et la précision font également partie du présent document.

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