Energy Efficiency
Case study for a fan system
Case study on energy savings in variable flow fan systems.
VFD basics
Acoustic noise level
Acoustic noise level This post discusses the topic of noise generated by variable frequency drive system. We will talk about acoustic noise in applications utilizing VFD technology. To be precise we shall use terms of sound pressure level and sound power level as explained further. Acoustic noise and health Why Read more…
Excursions and tours
Modern and historical public transport in Pilsen
Modern and historical public transportation in Pilsen Our excursion today leads us to Pilsen, Czech Republic. The city is located in western Bohemia. It was founded in 1295. The distance from Prague is about one hour. It is easily accessible by car (highway Prague – Nuremberg), by train (direct trains Read more…
Energy Efficiency
Energy efficiency – Part 7 (How to calculate)
How to calculate energy and cost savings Our series on energy efficiency continues. The need for more energy efficient systems emerges day by day driven by increasing environmental concerns. Today’s post will guide you through calculation of energy and cost savings when utilizing a VFD in flow control. Energy savings Read more…
VFD basics
Combined transformer
Combined transformer Our recent post [1] walked the reader through the two main VFD transformer options: integrated transformer and external transformer. Today we will introduce a solution that aims to leverage on advantages of both solutions: combined transformer. The name might be a bit misleading. We can also call it Read more…