Transformadores de medida y protección. Parte 1: Transformadores de intensidad.
CURRENT TRANSFORMERS.
TRANSFORMATEURS DE COURANT.
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29.180 / Transformers. Reactors
CTN 207 - Transmission and distribution of electrical energy
IEC 185:1987/A2:1995 (Identical)
It is cancelled by: UNE-EN 60044-1:2000