The internal resistance estimates by the load regulation stated in the specification as follows:
Internal resistance = load regulation/rated current
The example of PAT40-200T is as follows:
The load regulation is ± (0.1 % of rtg + 5 mV) = ± 0.045 V. The rated current is 200 A. Therefore, the internal resistance = 0.045 V/200 A = 0.225 mΩ.
For the load regulation and the rated current, read the user’s manual – chapter of Specifications.
