MEASURING ELECTROMAGNETIC EMISSIONS FROM LARGE POWER ROTATING MACHINES

P. Ferrari, A. Mariscotti, P. Pozzobon

Abstract

The electromagnetic emissions from a large power rotating machine (synchronous generator) are considered. The results of two measurement campaigns are reported: attention is focused on the measurement methods and on the evaluation of the results, considering the reactive behaviour of the field (the value of the wave impedance and its impact on the limits on the electric field amplitude in the standards), the extension of the source of emissions (the size of the machines is comparable to the measuring distance), the electromagnetic environment (presence of reflecting surfaces and sources of electromagnetic noise), a series of practical factors (safety distances, reproducible test conditions, etc.).

Keywords

synchronous generator, electromagnetic emissions

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IMEKO-WC-2000-EVL-P536.pdf

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