The light-emitting diode light source influence on the current spectra and the supply net voltages

The results of the modern lighting devices based on LEDs influence on the current spectral composition and voltages are considered in the article. The conducted research shows that in the distribution networks the considerable distortions of the current curves are observed because of the LED light sources. In many cases, the distortion level exceeds the limits defined by the international standards. Furthermore, such light sources lead to the current increase in the neutral conductor even when the load has fully symmetrical nature. This current increase can lead to the emergencies because of the neutral conductor burnout.