
Instrument Transformers For 50 Hz, Insulation Class 0,5 To 45 N (highest System Voltages 0,6 To 52 Kv); General Directions
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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Instrument Transformers For 50 Hz, Insulation Class 0,5 To 45 N (highest System Voltages 0,6 To 52 Kv); General Directions
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻