Measurement of Electromagnetic Radiation from Power Transformers

In the first part of paper is presented theoretical analyses electromagnetic compatibility (EMC) and in the second part is showed experimental measurement of radiation effects of high-voltage transformers and their possible impact for electronic devices of control room. Measurements and diagnostics were performed in the control room in a very high voltage substation. The state of electromagnetic radiation and the state of EMC were analyzed. Measurements of the effects of magnetic and electric fields on electronic devices were performed. Numerical data processing was used for Fourier analysis and analyzed in the spectral area.