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FAQ01613 of Measuring / Motor Protective Relays FAQ

FAQ No. FAQ01613

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Question

Can one SET Current Converter be connected to and used with two SAO Current Sensors? If not, can it be used by inserting a diode?

Answer



No, two SAO-series Current Sensors cannot be connected to one SET-series Current Converter. (Refer to Figure 1 below.)

When used with an SAO-series (SE-series) Sensor, the output voltage of the SET-series Current Converter is set to match that of the SAO-series (SE-series) Sensor. It cannot be used even if a diode is inserted.

The application shown in Figure 2 below is no problem as long as the CT has sufficient capacity.

Figure 1

Figure 2

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