Why we use CT on differant phases of 2ph.PT detection for brush-less static exc

Why we use CT on differant phases of 2ph.PT detection for brush-less static excitation of 3ph.,400v Synchronous Generator?
What happen if use CT on same one of VT phase?

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Why we use CT on differant phases of 2ph.PT detection for brush-less static excitation of 3ph.,400v..

Answer / k.prakashchandra

For measurement of VAR

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Why we use CT on differant phases of 2ph.PT detection for brush-less static excitation of 3ph.,400v..

Answer / k.prakashchandra

This is ' one watt meter ' method for measurement of reactive power for three phase balanced load . The current coil is connected in one line ( phase ) and the pressure coil is connected across the other two . The reactive power is root3 times the watt meter reading

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