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hydraulic, pneumatic and electric drives
VFD basics

Drive systems according to their working principle

Drive systems according to their working principle Electric drives have many excellent properties that make them a preferred choice [1]. However, there are other types of drives based on other physical principles that also have their own strengths. In this Read more

By admin, 2 yearsMay 2, 2024 ago
phase-shifting transformer
VFD transformers

What is a phase-shifting transformer?

What is a Phase-Shifting Transformer? VFD multi-winding transformers typically use phase-shifting feature in order to eliminate (cancel) certain harmonic orders in the spectrum of the current drawn from the grid. There are, however, other transformers that also use phase-shifting, but Read more

By admin, 2 yearsApril 24, 2024 ago
transformer K-factor
VFD transformers

What is transformer K-factor?

What is transformer K-factor? Transformers supplying power electronic equipment are exposed to non-sinusoidal load current. The harmonics cause additional losses in the transformer. One way to express the transformer design with respect to immunity against harmonic distortion is so called Read more

By admin, 2 yearsMarch 23, 2024 ago
VFD switching losses
Energy Efficiency

Why is it important to keep reasonable switching losses?

Why is it important to keep reasonable switching losses? Switching frequency is a decisive design parameter of a VFD – especially in medium voltage drives where the semiconductor capability may be more restricted. But switching losses have much bigger impact Read more

By admin, 2 yearsMarch 9, 2024 ago
LCI celebrates 50 years anniversary
LCI versus VSI

LCI celebrates 50 years anniversary!

LCI celebrates 50 years anniversary! It is little bit hard to believe but the high-power drive champion LCI celebrates 50 years anniversary in 2024. We take this opportunity to look back at the history of this matador and maybe also Read more

By admin, 2 yearsFebruary 20, 2024 ago
difference between soft starter and VFD soft starter
Motor starting methods

What is the difference between soft starter and VFD soft starter?

What is the difference between soft starter and VFD soft starter? Today we briefly explain a topic that may sometimes confuse: What is the difference between soft starter and VFD soft starter in motor starting applications? Direct on-line motor start Read more

By admin, 2 yearsFebruary 3, 2024 ago
Transformer guaranteed values
VFD transformers

What are the transformer guaranteed values?

What are the transformer guaranteed values? Like other electric equipment also transformers are generally designed in accordance with international standards. There are multiple parameters stated in the technical specification or a data sheet. However, which of them are the transformer Read more

By admin, 2 yearsJanuary 23, 2024 ago
what is the best investment in 2024
Theory made simple

What is the best investment in 2024?

What is the best investment in 2024? Beginning of a new year is linked with new goals, ambitions and expectations. In the economic field many people probably hope that the inflation finally drops, the major economies do not fall into Read more

By admin, 2 yearsJanuary 18, 2024 ago
VFD in power generation
Industry requirements

VFD Industry Requirements: Power generation

VFD industry requirements: Power generation In today’s post we will have a look at variable frequency drives (VFD) employed in power generation industry. We start with applications of drives in power generation and then discussing the requirements on those VFDs. Read more

By admin, 2 yearsDecember 27, 2023 ago
what is the optimal pulse number of a diode rectifier
VFD basics

What is the optimal pulse number of a diode rectifier?

What is the optimal pulse number of a diode rectifier? Among variable frequency drives (VFD), the voltage source inverter with a diode rectifier is the most common all-rounder. However, there are several arrangements of the diode rectifier varying in the Read more

By admin, 2 yearsDecember 13, 2023 ago

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