The facts about modern rotary and static uninterruptible power systems (UPS)

This technical article covers the brief explanation of the power quality issues with the reference to the past as well as two main types of modern UPS systems – rotary… Read more

Sep 04, 2019 | Edvard

Reactive power and power factor correction essentials to ALWAYS keep on mind

Why reactive power and power factor correction is so important? Well, for experienced engineers, this is not the question but the fact. For young students who meet this matter and… Read more

Sep 02, 2019 | Edvard

What do you need for short-circuit calculations? The less you assume, the better!

If you ask any electrical design engineer what is the most time consuming and critical required in short circuit analysis, he/she would say that it’s obtaining available data. The less… Read more

Aug 21, 2019 | Edvard

6 beautiful animals that cause interruptions and hazards to electric utilities

Animals are one the largest causes of customer interruptions for nearly every electric utility worldwide, right after human and other factors. Problems and mitigation techniques are as varied as the… Read more

Aug 19, 2019 | Edvard

Practical modifications of MV/LV radial distribution systems applied in buildings

Previous technical article covered simple low voltage and medium radial distribution systems. This part continue with their practical modifications: loop-primary system – radial secondary, primary selective system – secondary radial… Read more

Aug 14, 2019 | Edvard

5 types of software that LV design engineers MUST know how to work with

Back in early days, engineers weren’t able to use software tools for the purpose of drawing, calculation and design. So, how did they do it? Prior to software era, drawings…...

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Aug 08, 2019 | Miodrag Kokotovic

The essentials of designing MV/LV single line diagrams (symbols & drawings analysis)

First of all, power system designers should always communicate their design requirements through a combination of drawings, schedules and technical specifications. One of the key tools in developing and documenting… Read more

Jul 29, 2019 | Edvard

The magic I used to reduce harmonics in a plant (a real case study)

During last several decades, number and severity of electrical engineering problems caused by harmonic distortion have been significantly increased in both, domestic and industrial environment. This is mainly due to…...

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Jul 11, 2019 | Miodrag Kokotovic

Practical tips for installing surge protection devices in low voltage panel

In an electrical systems, surge protection devices (SPDs) are usually installed in tap-off configuration (in parallel) between the live conductors and the earth. The operating principle of SPD can be… Read more

Jul 08, 2019 | Edvard

How harmonic filters prevent distortions in networks with high harmonic levels

The subject of this technical article are harmonic filters and their design. Filtering measures are recommended and may be required for electrical systems with too high harmonic levels. Filter circuits… Read more

Jul 03, 2019 | Edvard

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