Reproducibility of conducted disturbance measurements

Measurement of disturbances injected into the power grid is carried out according to a well consolidated standard test method described in international standards and worldwide adopted. Nonetheless the regular operation of interlaboratory comparisons, for the purpose of verifying in the field how well test houses implement the test method and the actual consistence of measurement results, is far from being realized. In this work the design, operation and results of an interlaboratory comparison aimed at assessing participants’ performance in measuring conducted emissions in the 9 kHz to 30 MHz frequency range is described. The reproducibility of the test method is quantified.