For our test lab we need a high current transformer with a voltage of 5 V and a current of 700 A. The small secondaryvoltage has to be adjustable very accurately for our precisionmeasurements. Our wish would be an accuracy of 0,1%. The power supply should be done with a three phase CEE 32 A plug. The connectors for the high current side may be made of copper rails.
Furthermore the whole device should be mobile and may not exceed a specific weight and size. A compliance to all DIN norms is preconditioned.