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.
electric power quality, light-emitting diode light sources, the highest harmonics
1. Kusko A., Tompson M. Kachestvo energii v elektricheskih setyah: per. s angl. - M.: Dodeka-XXI, 2008. -336 s.
2. Akagi H. Active harmonic filters // Proceedings of the IEEE. - 2005. - Vol. 93. - N. 12. - P. 2128-2141.
3. Analiz kachestva elektroenergii v raspredelitel'nyh setyah APK / N.P. Boyarskaya, V.P. Dovgun, S.A. Temerbaev [i dr.] // Vestn. KrasGAU. - 2012. - № 3. - S. 169-182.
4. Boyarskaya N.P., Dovgun V.P., Kungs Ya.A. Problemy kompensacii vysshih garmonik v raspredelitel'nyh setyah agropromyshlennogo kompleksa / Krasnoyar. gos. agrar. un-t. - Krasnoyarsk, 2012. - 123 s.
5. Temerbaev S.A., Boyarskaya N.P., Dovgun V.P. Analiz kachestva elektroenergii v gorodskih raspredelitel'nyh setyah 0,4 kV // Zhurn. Sibir. Feder. un-ta. - 2013. - № 1. - S. 107-120.
