Founded in 1929 and located in Douai, Sadtem,  French leader on the market of Medium Voltage electrical instrument transformers, offers a full range of Current Transformers (CT) and Voltage Transformers (VT) for internal or external use up to 52kV and 20 000 A .

This range includes also combined instruments (CT+VT) for external use.

The products are available following the French standards (UTE, EDF…), European standards (BS, NBN, SEN, UNE, VDE, BS…), American standards (ANSI,CSA),  Australian (AS) and international (IEC), etc

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