The Magnetic Properties of ACSR Core Wire

This paper has described a method which is essentially empirical, but with some rational background, for utilizing tests of real and reactive losses in samples of ACSR core wires to calculate the increments in resistance and reactance of single-layer ACSR resulting from the presence of the core. The methods of using the derived data are described in detail in the companion paper,1 and comparisons of calculated and test results for representative samples are also given there. The nature of the results indicates that the resistance and reactance of singlelayer ACSR must inherently be subject to some variation from sample to sample and in the same sample for different conditions of temperature and stress. It is believed that the methods and data outlined in these two papers will be adequate to permit reasonably accurate calculations of these parameters, for all sizes of ACSR having a single-layer of aluminum around the core, for a wide range of temperatures and currents, beyond the range that can be reasonably tested indoors.