Abstract
The article presents the results of testing of three compact LED lamps with the E27 base. Power quality parameters were subject to the testing in the circuit which powered the LED light sources. Particular attention was paid to higher harmonics of current and the total harmonic distortion. Risks which could follow from the application of the great number of electroluminescent light sources were discussed. The research have been conducted. Then, the obtained testing results for the respective LED lamps were analyzed in comparison with the requirements of the IEC 61000-3-2:2014-10 Standard [1].
Highlights
Lamps with electroluminescent diodes are the latest generation of electric light sources which are introduced into the lighting industry on a large scale
The tested power supply integrated in the LED light source is a low-budget circuit without advanced solutions that attenuate the propagation of higher harmonics of current or correct the power factor
Odd harmonics are predominant in the spectral graph of current harmonics (Fig. 1); their value, even up to the 25th order, is higher than 1 mA per each Watt of active power of the LED lamp
Summary
Lamps with electroluminescent diodes are the latest generation of electric light sources which are introduced into the lighting industry on a large scale. LED lamps replace traditional incandescent lamps, fluorescent lamps and metal halide lamps in the domestic lighting, and in public utility places [2,3,4]. Soon these lamps may constitute the great majority among all the electric light sources. Semi-conductor light sources of better and better quality are introduced into the lighting market [5, 6] These are quite expensive solutions, they are used quite reluctantly. The variation of generation the higher harmonics of current by the LED lamps is extremely large
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