Power Quality – For a Safe and Efficient Power Supply

The ongoing digitization and automation in industry are significantly driven by modern power electronics and frequency converter. Systems like PV inverters and frequency converters contribute to the efficient use of electrical energy. However, the increasing number of these devices is causing growing disruptions to power quality in supply networks. The harmonics generated by these frequency converters often lead to voltage distortions, resulting in poor power quality.

In addition, the short-circuit capacity of networks is decreasing due to decentralized energy feed-in, while the number of sensitive consumers reacting to voltage deviations is rising. Since all consumers are interconnected within a supply network, voltage issues can lead to malfunctions or even operational outages.

Harmonics are one of the most pressing issues in modern power grids. They mainly result from the use of frequency converters and degrade the quality of the voltage. These network disturbances lead to distorted supply voltage, which not only reduces the efficiency of electrical systems but also makes devices and machines more susceptible to faults. To ensure voltage quality, standards and regulations must be followed to protect industries, public grids, and households from outages.

The causes of poor power quality and their remedies are diverse. Passive and active filter solutions can help reduce harmonics and improve grid quality. A detailed power quality measurement is often essential to accurately analyse the grid conditions and develop tailored solutions.

FRAKO provides comprehensive support in conducting PQ measurements and assists in finding the best solutions to improve voltage quality – ensuring a safe and efficient operation of your networks.