Harmonic Data Gathering Project Organised by ENA
National Grid Electricity System Operator
National Grid TO Innovation Team
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Innovation Funding Incentive
Organised by the Energy Network Association (ENA), National Grid is in
collaboration with DNO companies to conduct a system wide survey on the
existing harmonic distortion on the electricity supply system in the UK The
survey has been conducted since February 2005.
The key objectives of this survey are as follows:
- To determine the harmonic voltage levels during the defined 5 years
- To obtain the trend of harmonic distortion for the period of survey
- To investigate any correlation in harmonic voltages on transmission
and distribution systems at the measured sites
- Verify whether or not the existing control measures are sufficient to
meet the needs of a society with an ever appetites for equipment that
generates harmonic current.