The wiring diagram and physical layout of the equipment inside the motor control centre

This article will provide a description of most important equipment and working principle of a real case motor control centre (MCC). That is an usual name for a switchboard with…...

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Nov 14, 2019 | Miodrag Kokotovic

4 electrical quantities you MUST fully understand to select the right cast-resin transformer

This the basic question, but it’s important to start from the scratch. Well, distribution transformers link the MV to the LV system and step down the electrical power to be… Read more

Nov 13, 2019 | Edvard

13 very important type tests of a low voltage switchgear carried out by the manufacturer

Certification of distribution assemblies is defined by international standard IEC 61439-1. This standard provides common rules that are recognized worldwide. Compliance with the standard is certified, depending on the country… Read more

Nov 06, 2019 | Edvard

The art of achieving selectivity between incoming feeders connected in parallel

Calculating selectivity between incoming low voltage feeders connected in parallel is never an easy task. In parallel operation of two, three and more transformers on a common busbar, the partial… Read more

Oct 07, 2019 | Edvard

Automatic transfer switch between three power sources (analysis of schemes)

When a switchboard can be supplied from two or more different sources, transfer between those sources can be done manually or automatically. This kind of configuration is usually designed when…...

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Oct 03, 2019 | Miodrag Kokotovic

Good practice rules for electromagnetic compatibility (EMC) of LV conductors

The search for an overall optimization of the installation with regard to electromagnetic compatibility (EMC) and its ability to function without suffering or emitting excessive interference, comes via a set… Read more

Sep 30, 2019 | Edvard

Things you MUST know when commissioning low voltage switchgear and circuit breakers

Purchasing low voltage switchgear is not that easy, it’s not like purchasing a new TV or laptop. You have to be very experienced and deadly serious when specifying and ordering… Read more

Sep 23, 2019 | Edvard

Why we find temperature so important everywhere in electrical engineering?

The purpose of this article is to underline and illustrate the importance of temperature for various aspects of electrical engineering. This is one of the crucial engineering issues from the…...

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Sep 20, 2019 | Miodrag Kokotovic

Operating centralized automatic compensation systems when supplying linear loads

For energy-efficient operation of decentralized multiply-fed industrial networks, each load-centre substation must have its own centralized reactive-power compensation system for automatic PF correction. The automatic reactive-power compensation systems used for… Read more

Sep 16, 2019 | Edvard

Generators applicable to high reliability requirements of healthcare and other facilities

Generator systems described in this technical article are applicable to healthcare requirements, as well as other facilities that may require a high degree of reliability. The electrical supply for data… Read more

Aug 28, 2019 | Edvard

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