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The Active Power Losses in the Road Lighting Installation with Dimmable LED Luminaires

Institute of Electrical Power Engineering, Lodz University of Technology, 90-924 Łódź, Poland
Author to whom correspondence should be addressed.
Sustainability 2018, 10(12), 4742;
Received: 9 November 2018 / Revised: 3 December 2018 / Accepted: 9 December 2018 / Published: 12 December 2018
(This article belongs to the Collection Power System and Sustainability)
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In accordance with the requirements of PN EN 13201-5 standard for road lighting installation, energy performance indicators should be descripted. In order to calculate energy performance indicators, it is necessary to know the active power of the road lighting system. The above standard does not specify whether active power losses should be taken into account in calculations. The main purpose of the article is to estimate the active power losses in the road lighting installation. The article presents methods for calculating active power losses, taking into account losses in all main elements of the installation. The obtained calculation results show the relationship between active power losses and the power of luminaires, their number and spacing between poles. Calculations of active power losses were made for single-phase and three-phase installations. The active power losses in a three-phase system do not exceed 1.5% and in a single-phase installation they may be greater than 7%. Therefore, in order to obtain exact values of energy performance indicators (and also predict electricity consumption), active power losses should be taken into account in calculations. In addition, a comparative analysis of the effect of luminaires dimming and active power losses on annual CO2 emissions was made. Not taking into account the active power losses in the calculation of the lighting installation’s power, for single-phase installations in particular, understates the calculated value of CO2 emissions by more than 6%. View Full-Text
Keywords: power losses; road lighting; LED luminaires power losses; road lighting; LED luminaires

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Sikora, R.; Markiewicz, P.; Pabjańczyk, W. The Active Power Losses in the Road Lighting Installation with Dimmable LED Luminaires. Sustainability 2018, 10, 4742.

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