Enclosure protection – IEC vs NEMA In this short post we look into the subject of ingress protection (IP) of enclosures used in variable frequency drives, switchgears etc. First we explain the classification of ingress protection according to IEC standard Read more
How to understand IEEE 519-2014? IEEE 519 is one of the worldwide most common standards related to harmonics and power quality. Yet, the standard is not always correctly interpreted and sometimes even misused. In this article we bring up few Read more
Supervising critical transports with Mobitron Cargolog impact recorder Medium voltage system drive key components, such as the VFDs, transformers and motors, are sensitive, expensive and critical equipment. It is therefore of utmost importance to pay attention not just during manufacturing Read more
Happy and prosperous new year 2022! Dear customers, partners, friends and supporters, In the name of MB Drive Services I would like to wish all of you a happy, healthy and prosperous new year. May you be able to fulfill Read more
What information belongs on a nameplate? Nameplate or rating plate is an inherent part of each drive system component, such as the transformer, variable frequency drive (VFD), electric motor etc. Therefore, it makes sense to spend few paragraphs on the Read more
SBB Re 460 (Lok-2000) Re 460 series is a modern four-axle multi-purpose electric locomotive operated by the Swiss Federal Railway (SBB CFF FFS) company in Switzerland. We can see these locomotives serving daily in the passenger trains. Manufacturers of these Read more
Electrifying Ride Through The Charming City of Baden This post informs about new highlight in Baden, Switzerland. The bus line 5 operated by RVBW switched from conventional diesel fuel buses to battery electric operation. How does the system look like? Read more
The beauty of just in time predictive maintenance Nothing lasts forever. And every machine eventually breaks down if not being properly maintained. Predictive maintenance is a trend that everyone has probably already heard about couple of times. What is the Read more
Capital spare transformer – A valuable asset in times of disrupted supply chain Capital spare transformer is very important element to support high availability of a medium voltage variable speed drive system (MV VSDS). While this has always been true Read more
How does a Buchholz relay work? Buchholz relay belongs to ‘standard’ protection elements of liquid-immersed power transformers including special designs such as converter duty transformers. The simple gas-actuated relay is so popular and reliable that even after development of sophisticated Read more