Apr 2013
Electricity Transmission
Harmonic Data Gathering Project Organised by ENA
Apr 2013
National Grid Electricity System Operator
National Grid TO Innovation Team
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Innovation Funding Incentive
Asset Management
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.