Nonlinear Loads in Lighting Installations—Problems and Threats

Distorted currents drawn by nonlinear loads used in power installations (including lighting) can cause many problems. With the constantly progressing increase number of these loads, phenomena accumulate, constituting significant causes serious failures both electrical and electronic devices, as well installation components. The effects disturbances introduced to network may include, for example, line overloads, overheating transformers motors, capacitor failures, accelerated degradation insulation, etc. article presents examples measurement results luminaires with discharge LED sources. Measurements parameters a three-phase outdoor lighting consisting low-power sources are also discussed. Based on recorded waveforms, were determined. High harmonic values phase current neutral conductor recorded. measurements control systems, operation which excessive heat generation, presented. methodology cable selection circuits harmonics is described.