Six less known phenomena that can cause disturbance in electrical installations

In addition to the known phenomena of lightning and switching, numerous new sources, in particular power converters, can cause disturbance in installations. This disturbance, which is generated by the installation… Read more

Mar 30, 2020 | Edvard

AC and DC facilities in electrical station services of major power plant types

In a power plant, the electrical station services (abbreviated to SS in the following) consists of all the DC facilities from 24 to 220 V and AC facilities up to…...

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Mar 23, 2020 | Edvard

The art of determining the right cross-section of low voltage conductors

To be clear at the beginning of this article, determining the cross-section of conductors and cables is, for sure, not the most exciting part of electrical design. There are much… Read more

Mar 16, 2020 | Edvard

Five actions to achieve excellent energy savings in old electrical installations

Not all existing electrical installations lack energy efficiency, but most of them do. Especially if they were built 15-20 years ago and older. Although it is generally acknowledged that substantial… Read more

Mar 04, 2020 | Edvard

When can we say that earthing arrangement is safe for people (confusions in practice)

This article will analyse some of the most important safety issues related to design and use of LV electrical installations. Besides explanation of relevant terms in this field defined by…...

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Feb 28, 2020 | Miodrag Kokotovic

Controlling power system parameters through reactive power (VAr) compensation

To be honest, transmission and distribution networks are full of problems. But that’s nothing new, and you already knew that. This technical article will shed some light on solving some… Read more

Feb 17, 2020 | Edvard

Design and control considerations for an example of the waste water pumping station

Waste water pumping stations are very common application examples of three phase induction motor. There are numerous varieties of power supply and control logic, depending on exact conditions in the…...

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Feb 14, 2020 | Miodrag Kokotovic

Inevitable in almost all electrical switchboards – Residual current device (RCD)

Technology that RCD uses is so simple and so magical. The residual current device continually measures the difference between the value of the outgoing and incoming currents in the circuit… Read more

Feb 12, 2020 | Edvard

Advices in choosing the right neutral earthing system for your installation

The choice of a neutral earthing system is dependent on requirements and objectives that are often contradictory to such an extent that sometimes several systems have to be created within… Read more

Feb 03, 2020 | Edvard

Connections and composition of LV/MV/HV capacitor banks

Compensation capacitors are installed in numerous locations in electrical installations. They are to be found in high voltage transmission and distribution systems, in transformer substations and also at various levels… Read more

Jan 27, 2020 | Edvard