14 disturbance types that mess up power quality and 50/60 Hz sinusoidal signal

The quality of the electrical energy seems to be the very popular nowadays. It may be affected either by events that occur on the distribution systems (switching, lightning, etc.) or… Read more

Jan 06, 2020 | Edvard

It’s time to go further. Engineers, Happy New Year 2020!

Here comes the New Year! As 2019 is coming to an end, it is time to take a glimpse at what was, but more importantly to look forward to what… Read more

Dec 31, 2019 | Edvard

Essential fundamentals of harmonics distortion for future power quality experts

If you take a look at the past, you must notice that power system was much cleaner and straightforward. Most loads were primarily linear in nature. Linear loads draw the… Read more

Dec 30, 2019 | Edvard

Why earth leakage protection is necessary in low voltage installations

We all should know that low voltage circuit breakers and fuses operate in the event of excess current arising from overload conditions and faults. As the statistics say, the most… Read more

Dec 25, 2019 | Edvard

Medium voltage soft starter for heavy-duty motor control (operation and special applications)

A soft starter is an electronic motor controller used on three phase medium voltage squirrel cage induction motors. During motor starting, the soft starter controls the voltage or current supplied… Read more

Nov 18, 2019 | Edvard

The essentials of an automatic changeover systems in medium voltage networks

In medium voltage distribution networks, it is important to maintain a high level of reliability. Industry relies on the continuous operation of critical plant, which requires no or little disruption… Read more

Nov 04, 2019 | Edvard

Reactive power compensation in electrical plants with generators

Compensation of reactive power applied in buildings or small facilities operates in the first and second quadrants of the coordinate system. Increasingly, complex industrial plants, for example plants burning wood… Read more

Oct 30, 2019 | Edvard

Power supply conceptual schemes for small, medium-sized and large industrial plants

This technical article presents preferred system structures and power supply concepts for small, medium-sized and large industrial plants that meet the different requirements for power demand and supply quality. For…...

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Oct 22, 2019 | Edvard

Standard cubicle configurations for a medium voltage metal-enclosed switchgear

This technical article will shed some light on the standard design of medium voltage metal-enclosed switchgear cubicles in terms of enclosure configurations as well as the characteristics of busbar system…. Read more

Oct 21, 2019 | Edvard

Occurrence and detection of an earth fault in MV power systems with isolated neutral

The mode of operation of an MV industrial power system that is galvanically isolated from the public power supply is determined by the method of neutral earthing on the secondary… Read more

Oct 14, 2019 | Edvard