Sammendrag
Testing of energy meters with power quality measurement functionality
This report describes laboratory tests performed on 5 different energy meters with power quality measurement capabilities. The objective of the tests was to investigate the possibility of performing power quality measurements in a large scale by utilising such functionality in energy meters. This was done by investigating how power quality measurements were performed compared to known standards within power quality and the quality of those measurements. This will provide valuable information for utilities which consider making use of data from such meters. SINTEF Energy Research has focused on testing meters that are available in the market today and not on what the different vendors claim they can deliver in the future. The objective of these tests was not to make a ranking list of energy meters from different vendors and the names of the participating vendors are therefore made anonymous.
The tests showed that all the energy meters tested, measure parameters relevant for power quality analysis. However, the tests also show that there are significant differences between the tested meters. The implementation of both voltage measurements and event registration varies greatly between the tested meters and for most of them no common power quality standard seems to have been used as a basis.
This report describes laboratory tests performed on 5 different energy meters with power quality measurement capabilities. The objective of the tests was to investigate the possibility of performing power quality measurements in a large scale by utilising such functionality in energy meters. This was done by investigating how power quality measurements were performed compared to known standards within power quality and the quality of those measurements. This will provide valuable information for utilities which consider making use of data from such meters. SINTEF Energy Research has focused on testing meters that are available in the market today and not on what the different vendors claim they can deliver in the future. The objective of these tests was not to make a ranking list of energy meters from different vendors and the names of the participating vendors are therefore made anonymous.
The tests showed that all the energy meters tested, measure parameters relevant for power quality analysis. However, the tests also show that there are significant differences between the tested meters. The implementation of both voltage measurements and event registration varies greatly between the tested meters and for most of them no common power quality standard seems to have been used as a basis.