You will be required to calibrate a current transformer at selected ratios. The nominal maximum primary current for each range will be between 500 A and 4000 A. Secondary current will be either 5 A or 1 A. Calibration will be over a range of burdens and excitation levels suitable for a metering installation. There will be some flexibility with what you are required to report, but the minimum will be a calibration report complying with IANZ requirements. Expected measurement period will be over October 2019 to March 2020.
The protocol document is in development.