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This paper presents the results of a set of measurements to study changes in harmonic emission from a domestic customer due to the introduction of energy-efficient lamps (CFLs and LED lamps). During this study, measurements have been performed of the emission from different combinations of domestic devices in combination with different kind of lamps. To study harmonic emission, three different states...
In this paper, several high power lighting networks based on high pressures sodium (HPS) lamps have been set up. These have been chosen because of they are used in public lighting. Both electromagnetic and electronic ballast have been used with the mentioned lamps. They have also been tested with different levels of power using dimming for a 220 V power supply in the case of electronic ballast which...
In this paper, several high power lighting networks based on high pressures sodium (HPS) lamps with rated lamp powers of 70, 150 and 250 W have been set up. They have also been tested with different levels of power using dimming for a 220 V power supply. These have been chosen because of they are used in public lighting. Each luminaire consists of sodium lamp with dimmable electronic ballast, which...
This paper presents results from a PQ audit conducted in an IT-intensive modern office building. Some of the mayor objectives of the PQ study were: detecting the main involved disturbances by PQ monitoring, identifying the power disturbances root causes, characterizing the electromagnetic compatibility level of equipments and installation and providing guidelines for implementing energy-efficiency...
One of the key objectives of DERlab Network of Excellence is the development of internationally acceptable test and certification procedures for distributed energy resources (DER)-components and systems connection and operation, which could be proposed to European standardisation bodies. Interconnection of inverters to the electrical grid has been identified as a key issue for the wide integration...
This paper presents results from a PQ audit conducted in an IT-intensive modern office building. Some of the mayor objectives of the PQ study were: detecting the main involved disturbances by PQ monitoring, identifying the power disturbances root causes, characterizing the electromagnetic compatibility level of equipments and installation and providing guidelines for implementing energy-efficiency...
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