Solidarity with Ukraine Ukraine, a sovereign European country, has been attacked and invaded by the army of Russian Federation. Something we could hardly imagine in civilized Europe of 21st century. Our blog has been fully dedicated to topics related to electric drives. We have never planned to publish politically motivated Read more…
How does VFD calculate the motor torque? Motor torque along with speed is the most important quantity that the VFD shall control. But how does the VFD measure or calculate the motor torque? What are the necessary inputs? Are there any extra sensors needed? Can every VFD perform the calculation Read more…
How to choose a medium voltage VFD:Service network and reaction time From end user’s perspective the uptime of the plant is crucial. The cost of loss of production quickly exceeds the equipment cost of the VFD. Therefore, you need a strong partner to support you with any kind of technical Read more…
IGBT versus IGCT power semiconductors – A brief comparison Semiconductor is the heart of any power electronic equipment. In medium voltage range of variable frequency drives two types of power semiconductors emerged: Insulated Gate Bipolar Transistor (IGBT) and Integrated Gate-Commutated Thyristor (IGCT). Naturally, there are many (white)papers, articles and presentations Read more…
Top 5 manufacturers of converter transformers Lists with top x products / brands / holiday destinations / restaurants / hotels etc are extremely popular. Today we would like to present a list of top 5 manufacturers of converter transformers. As every such list, the ranking is always somewhat subjective or Read more…
Keep It Simple Stupid (KISS) Keep it simple stupid, in short KISS, is a popular expression used in various areas. The approach aims to keep every step in a process as simple as possible. KISS is sometimes even used as a framework for life. Certainly, KISS approach can be applied Read more…