The measurement and monitoring of Power Quality (PQ) is an essential for industries including manufacturers of mass-market electrical products and electricity grid operators.

For product manufacturers, PQ measurements are needed to demonstrate compliance to the Electromagnetic Compatibility (EMC) Directive as required for product CE marking. Often these measurements (e.g. harmonics and flicker) are carried out by testing laboratories using calibrated power quality analysers. For grid operators, operation and planning of new connection requires that the PQ levels in the grid are monitored to maintain the acceptable levels known as ‘compatibility levels’.

Many international standards have been published on PQ and much of EURAMET’s past and present R&D has contributed to these standards and underpinned them with new traceable measurement capabilities.