Transformadores de medida. Parte 3: Transformadores combinados.
Instrument transformers - Part 3: Combined transformers
Transformateurs de mesure - Partie 3: Transformateurs combinés
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17.220.20 / Measurement of electrical and magnetic quantities
29.180 / Transformers. Reactors
CTN 207/SC 38 - Instrument transformers
EN 60044-3:2003 (Identical)
IEC 60044-3:2002 (Identical)
It is cancelled by: UNE-EN 61869-4:2014 (Ratificada)
Cancel: UNE 21088-3:1983
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