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…
VFD software functionality In continuation of our series to guide users how to choose a medium voltage VFD this post talks about VFD software functionality. We live in a digital age and there is no doubt that software is very powerful. Don’t worry, we don’t gonna talk about Industry 4.0 Read more…
How to choose a medium voltage VFD:Life cycle cost What is life cycle cost (LCC)? The definition from business dictionary (www.businessdictionary.com) says: Sum of all recurring and one-time (non-recurring) costs over the full life span or a specified period of a good, service, structure, or system. In includes purchase price, Read more…
How to choose a medium voltage VFD:Engineering support Engineering support from VFD manufacturer significantly influences how smooth the execution of your project goes and how successful it will be in the end. It also directly impacts the quality of the system solution. Some manufacturers focus on selling their standard ‘catalog Read more…
How to choose a medium voltage VFD:Design robustness Every end user probably wishes that his VFD has a robust design and works as intended during the entire lifetime of at least 20 years. Unplanned shutdowns and outages are unwanted. But what is robust design and how can it be achieved? Read more…
How to choose a medium voltage VFD:Motor compatibility VFD – motor compatibility is an essential precondition for successful operation of power drive system. There is a large amount of publications underlying this topic. This article aims to explain the matter without requiring the reader to have expert knowledge in this Read more…
How to choose a medium voltage VFD:Line side connection and power quality Nowadays modern VFDs offer large variety of line side configurations. Which one to select? That is the topic of today. There are two basic groups of VFDs based on their line side connection: Diode Front End (DFE) Active Read more…
How to choose a medium voltage VFD: Cooling type This post looks into drive classification according to cooling. Same as for instance electric motors also VFDs can be divided in two main groups with regards to VFD cooling type: Air cooled drives Liquid cooled drives Air cooling is known for Read more…
How to choose a medium voltage VFD: Application requirements The requirements of your application are key when selecting suitable VFD. If you check the websites of leading medium voltage VFD manufacturers you will find several products with different performance data. Why? Several topologies are available on the market and each Read more…
How to choose a medium voltage VFD (Part 1: Introduction) We start a new series dedicated to the selection of medium voltage variable frequency drive. Some points might also be valid for low voltage VFDs. However, many topics require different considerations in medium voltage range compared to low voltage. Purchasing Read more…