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

Testing and commissioning of HV power transformers, circuit breakers, CTs and VTs

As you already know, substations are the points for controlling the supply of power on different routes by means of various equipment such as power transformers, circuit breakers, CTs/VTs, compensating… Read more

Sep 11, 2019 | Edvard

Interference and noise affecting transmission media in protection signalling

The transmission media that provide the communication links involved in relay protection signalling are private pilots, rented pilots or channels, power line carrier, radio and the newest and the most… Read more

Sep 09, 2019 | Edvard

The facts about modern rotary and static uninterruptible power systems (UPS)

This technical article covers the brief explanation of the power quality issues with the reference to the past as well as two main types of modern UPS systems – rotary… Read more

Sep 04, 2019 | Edvard

Reactive power and power factor correction essentials to ALWAYS keep on mind

Why reactive power and power factor correction is so important? Well, for experienced engineers, this is not the question but the fact. For young students who meet this matter and… Read more

Sep 02, 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

10 most common locations of shunt capacitors installed in a power system

It’s quite simple, using shunt capacitor banks to supply the leading currents required by the load relieves the generator from supplying that part of the inductive current. Both distribution and… Read more

Aug 26, 2019 | Edvard

Case study: Failure of a transformer & switchgear buses due to a ferroresonance event

First of all, it’s good to know that the possibility of a transformer ferroresonance condition rapidly increases as the transformer is closer to generator zone. This condition may occur when…...

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Aug 23, 2019 | Edvard

What do you need for short-circuit calculations? The less you assume, the better!

If you ask any electrical design engineer what is the most time consuming and critical required in short circuit analysis, he/she would say that it’s obtaining available data. The less… Read more

Aug 21, 2019 | Edvard

6 beautiful animals that cause interruptions and hazards to electric utilities

Animals are one the largest causes of customer interruptions for nearly every electric utility worldwide, right after human and other factors. Problems and mitigation techniques are as varied as the… Read more

Aug 19, 2019 | Edvard

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