Instruments and measurements: Measurement of core losses in terms of sine-wave core losses

Last year, the Committee outlined three suitable methods for correcting results of core loss measurement to a sine-wave basis when made with a distorted wave of applied voltage, and for such correction recommended preference for methods utilizing average voltage. (See Annual Report, Committee on Instruments and Measurements, A. I. E. E. TRANS., Vol. 48, Oct. 1929, p. 1386).