Overdimensioning of VSDS – What are the consequences? How to dimension a variable speed drive system (VSDS) properly? Underdimensioning is a No Go but what about overdimensioning? Besides the initial investment cost, how does overdimensioning affect the technical side of Read more
KYDS: Know Your Drive System KYDS -Know Your Drive System – is our new program where you learn more about variable speed drive system and the most important system components (transformer, VFD, electric motor, cooling system, harmonic filter). Scope of Read more
How to take oil samples properly? In this short blog post we share a basic guideline and set of recommendations how to take oil samples properly. Introduction Analyzing the quality of transformer insulation oil by means of oil samples is Read more
Success story on transformer rental for critically important compressor drive End of last year our company had the opportunity to rent the VFD transformer to support an important European production plant of a global chemical company. This case has proven Read more
How to calculate the short circuit current in a correct way? Calculation of short circuit current is essential for the design, dimensioning and protection of electric systems. Such system may be for example a substation, a transmission line, a generator Read more
InterCity-Express (ICE) – The German high-speed champion In this blog post we look at another high-speed champion on European railway tracks: the InterCity-Express, well known as ICE. These trains are the highest category trains in the fare system of Deutsche Read more
Protection of VFD-fed motors How to properly protect an inverter-duty variable-speed electric motor? What protection is covered by the VFD? What shall be done externally? Which protection elements are most suitable? The article on protection of VFD-fed motors brings the Read more
Short circuit currents appearing in variable speed drive systems The knowledge of short circuit current level in variable speed drive systems is crucial for the design of system components as well as for the system protection. Inadequate dimensioning, unsuitable protection Read more
What is the difference between VFD and VDS? This article aims to answer one relatively simple question: What is the difference between VFD and VSD? As the question was raised again recently, we would like to deliver an understandable explanation. Read more
Lunch & Learn (& Help) Lunch & Learn is a popular concept of short trainings and seminars held during or around lunch breaks. In a bit informal way you learn about particular topics. It is one topic per session, served Read more