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Capital spare transformer - success stories
Rental services

Capital spare transformer: Success stories

309 days in Spain, over 1 year in Sweden No, this is not a post about my sabbatical. It is about two success stories of our rental transformer service. In critical situations, when original drive transformer is unavailable, our solution Read more

By admin, 6 daysFebruary 28, 2026 ago
STATCOM and its application
Applications of power electronic converters

STATCOM and its application

STATCOM and its application Static synchronous compensator (STATCOM) is a power electronic based equipment to provide reactive power compensation and other options functionality, such as e.g. harmonic cancellation. In this blog post we look at how STATCOM works and how Read more

By admin, 2 weeksFebruary 21, 2026 ago
On-demand webinars - Final sale
Uncategorized

Final Sale of our Webinars

Final Sale of our Webinars Do you set goals for a new year? How about investing in yourself and expanding your know-how in the area of medium voltage variable frequency drives and drive system? Now it is the perfect time Read more

By admin, 2 monthsJanuary 15, 2026 ago
What changed in IEEE 519 between 2014 and 2022 edition
Network harmonics

What has changed in IEEE 519 between 2014 and 2022 editions?

What has changed in IEEE 519 between 2014 and 2022 editions? IEEE 519 is one of the most common standards regarding power quality and harmonic control. The 1992 edition was in place for over two decades until it was replaced Read more

By admin, 2 monthsJanuary 7, 2026 ago
VFD transformers

Temperature rise test of converter transformers

Temperature rise test of converter transformers Abstract Purpose of a temperature rise test is to verify the thermal design of a transformer. The injected losses shall correspond to the losses in real operation at rated load. Converter transformers are subjected Read more

By admin, 2 monthsJanuary 2, 2026 ago
Asynchronous and synchronous motor drives in comparison
Motor basics

Asynchronous and synchronous motor drives in comparison

Asynchronous and synchronous motor drives in comparison Medium voltage variable frequency drive (MV VFD) systems mostly utilize two types of electric motors: asynchronous and synchronous machine. This article compares some of the characteristics of both technologies. Aspects such as power Read more

By admin, 3 monthsDecember 20, 2025 ago
what is the role of safety coupling
Testing

What is a safety coupling?

What is a safety coupling? Safety coupling is a mechanical shaft component. It connects two pieces of the shaft. However, it has a special role: to protect the shaft line against excessive torque. That is why it is also referred Read more

By admin, 3 monthsNovember 30, 2025 ago
active magnetic bearings
High-speed

Active magnetic bearings for high-speed motors

Active magnetic bearings for high-speed motors This post presents some basic information about active magnetic bearing technology in modern variable speed drive systems. Two principal solutions for electrically driven turbomachinery Electric drives for turbomachinery can be realized in two ways: Read more

By admin, 4 monthsOctober 26, 2025 ago
How well do yu know variable frequency drives and drive systems
VFD basics

How well do you know variable frequency drives?

How well do you know variable frequency drives and drive systems? Take a short quiz to test your knowledge about variable frequency drives (VFD) and VFD based drive systems. 1. Nominal current of asynchronous motor with pf = 0.88 is Read more

By admin, 5 monthsOctober 18, 2025 ago
How to size cables in high-power drive systems
MV cables

How to size cables in high-power drive systems?

How to size cables in high-power drive systems? Most common power connection in between drive system components is a cable. In this post we look at some factors to consider when sizing cables in high-power medium voltage variable frequency drive Read more

By admin, 5 monthsSeptember 27, 2025 ago

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