The most important precautions during commissioning and start up of LV switchgear

Low voltage switchgear can often be very complex and expensive piece of electrical equipment, usually representing one of the most critical and crucial parts of the project. In order to…...

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Jun 13, 2019 | Miodrag Kokotovic

Major components you can spot while looking at opened LV and MV switchboards

Depending on the size of the building or factory site and whether the supply is high voltage or low voltage, there may be requirements for both a main high voltage… Read more

Jun 10, 2019 | Edvard

Fire behaviour and construction safety precautions for installation of cables and conductors

Although the type of cable and conductor is the determining factor in the fire behaviour of ducts and conduits, the choice of cable tray type and the installation of the… Read more

Jun 05, 2019 | Edvard

8 common mistakes in reading and creating single line and wiring diagrams

In order to create consistent and technically correct single line or wiring diagram, more than basic knowledge about engineering field in question is required. Besides electrical installation and equipment, design engineer should be...

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May 30, 2019 | Miodrag Kokotovic

3 most important routine tests for successful verification of a low voltage switchgear

Individual tests or routine verifications are intended to check the essential safety aspects of LV assemblies that could be affected by hazards during mounting or possible manufacturing faults. In principle,… Read more

May 08, 2019 | Edvard

How to make calculation for a distribution substation 10/0.4 kV, 2×1600 kVA

Distribution substations with installed power of 2×1600 kVA are typical example of electrical power supply facilities which can be often seen all around the Europe and wider. By “calculation” of such a substation, it is assumed that...

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May 02, 2019 | Miodrag Kokotovic

Learn to read and understand single line diagrams and wiring diagrams

Single line diagrams are used in common engineering practice as graphical representation of electrical switchboard or assembly containing more sections, i.e. cubicles. Basically, they are simplified and digest picture of…...

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Apr 12, 2019 | Miodrag Kokotovic

Properly engineered and installed selective coordination between LV circuit breakers

It’s extremely important to work on selective coordination of circuit breakers in the design phase of a system. After switchboards, distribution panels, MCCs, lighting switchboards, etc. are installed, there typically… Read more

Apr 10, 2019 | Edvard

The essence of LV circuit breakers – Releases, tripping curves, characteristics and limitation

A circuit breaker is both a circuit-breaking device that can make, withstand and break currents whose intensity is at most equal to its rated current (In), and a protection device… Read more

Dec 17, 2018 | Edvard

Neutral earthing systems of generator sets (gensets)

Generator sets have specific features that must be taken into account for protection against electric shocks. Mobile sets cannot be connected to earth and their connection by means of a… Read more

Nov 08, 2018 | Edvard