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

Protection of pumped storage power plants using vacuum generator circuit breaker (VGCB)

The pumped storage power plants (PSPP) are one of the commercially proven methods available for grid-scale energy storage. Building additional PSPPs particularly in the areas with high installed capacities of… Read more

Jul 01, 2019 | Group Of Authors

MV/LV transformers – The most common power supply in low voltage networks

The general term power supply in LV networks refers to the supply of electrical energy. The power supply, and more generally the different supplies, are provided by sources (mains supply,… Read more

Jun 24, 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

The theory behind reactive energy compensation that every engineer should know

Reactive energy compensation is an essential process in improving energy efficiency. It reduces the power consumption and thus its cost, enables optimum use of installations by preventing them being oversized,… Read more

May 22, 2019 | Edvard

Theorems and network reductions that every electrical engineer MUST know

Most practical power system problems are solved by using steady state analytical methods. These methods make the assumption that circuit parameters are linear, bilateral, and constant for constant frequency circuit… Read more

May 06, 2019 | Edvard

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

Electrical design of healthcare facilities (essential system requirements)

Due to the critical nature of the care being provided at healthcare facilities and their increasing dependence on electrical equipment for preservation of life, they have special requirements for the… Read more

Apr 01, 2019 | Edvard