Tee connectors for ac-dc current shunts up to 100 A

Special tee connectors are necessary to calibrate ac-dc current shunts up to 100 A in a step-up procedure. Influences of these tees on the measured ac-dc difference have been observed. The reason for this influence is shown and a solution suggested, which reduces uncertainties in the 20 A to 100 A range and provides customers with calibration values free from tee influences.