Traceability of high current measurements in short circuit laboratories

To establish traceability for high current measurements, comparison tests of high current shunts in High Power Laboratories have been carried out with STL reference shunts since 2005. This paper describes the comparison test results of shunts in High Power Laboratory CPRI Bangalore. The test results shown are the shunts tested for the comparison tests performed and most of the differences of the scale factor with power frequency current between the reference shunt and those tested in participating laboratories were less than 0.7 %.