In the last two decades, the customer’s urge for good quality of power supply has increased due to the use of more sensitive electronic devices which on the other hand might influence the electricity network too.
At present, no definite responsibility with respect to power quality (PQ) aspects at the point of connection (POC) is defined in the European standard EN50160 or other standard.
So Sharmistha Bhattacharyya explains why voltage quality regulation is needed in today’s electricity infrastructure.

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