Electromagnetic Interferencies in Power Networks

This paper deals with the evaluation of electromagnetic interferences in the power networks 230 V 50 Нz with the help of special devices: Graham Stetzerizer meters, Greenwave Meters, PicoScope. Research was carried out at the different loads: led lamps and water pump, which worked in 10 modes. The impact of the use of filters on the power quality parameters of the electricity networks 230 V 50 Hz was investigated in range of frequency from 0 to 2 kHz. As a result, it was shown that the readings of the devices do not give an unambiguous representation of voltage quality, and the use of filters significantly increases the strength of the magnetic field emitted by the wires.