Twelve doubts in ground testing that make electrical engineers pretty confused

Ground testing is often misunderstood by electrical engineers and technicians who do not perform such testing often and regularly. It seems that there are a lot of questions and doubts… Read more

May 06, 2020 | Energy and Power

Why should plant engineers be worried about the power factor? What’s the catch?

Why are power engineers interested in plant power factor, what causes low power factor, and how can it be improved? The objectives of this article are to answer these questions… Read more

May 04, 2020 | Electrical Lectures

Major components of the HVDC converter station (single line diagram explained)

This technical article examines in detail the main equipment of an HVDC converter station and discusses the layout of this equipment within the converter station. The interconnection of HVDC to… Read more

Apr 29, 2020 | High Voltage

The essential HV/EHV substation auxiliary facilities you should know about

Nowadays, HV/EHV substations have become pretty complex from the design point of view. Besides the main electrical equipment, which must be designed and selected correctly, there are several auxiliary facilities…...

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Apr 27, 2020 | Cables ♛

Five power quality devices that every commercial plant must have installed

Nowadays everybody speaks about power quality. For many reasons, I would say. Electrical energy is now polluted more than ever, and consumers are more sensitive to power disruptions and fluctuations… Read more

Apr 20, 2020 | Energy and Power

Practical tips for the protection of generators and power transformers

There are usually several ways of protecting HV/MV generators and transformers. It should be noted that one protection relay is often used for several functions, for example, an overcurrent relay…...

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Apr 17, 2020 | Premium Content ♛

Switching devices you are likely to spot in every medium voltage switchgear

Up to and including 52 kV voltage range is generally referred to as “medium voltage”. This technical article shed some light on a few devices you are likely to spot… Read more

Apr 13, 2020 | Medium Voltage

Mastering single line and wiring diagrams: Using circuit breaker for MV power factor correction

Within this article, custom made cubicle intended for supply and protection of MV reactive power compensation block, will be analyzed. Technical characteristics of major electrical components, together with three line…...

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Apr 09, 2020 | Medium Voltage ♛

The essentials of power systems: Relay protection and communication systems

First, I would like to make a note that there are many essentials when we speak about power systems in general. The main relay protection functions (overcurrent, directional, differential, distance,… Read more

Apr 06, 2020 | Energy and Power

Civil engineering in installation of substation buildings and switchboard rooms

What is the civil engineering of substation? The civil engineering includes a large quantity of information and details for the structural drawings required to design switchgear installations. The structural drawings… Read more

Apr 01, 2020 | Energy and Power

Six less known phenomena that can cause disturbance in electrical installations

In addition to the known phenomena of lightning and switching, numerous new sources, in particular power converters, can cause disturbance in installations. This disturbance, which is generated by the installation… Read more

Mar 30, 2020 | Energy and Power

Mastering single line and wiring diagrams: MV earth fault protection

This technical article continues the series of articles dedicated to mastering single line and wiring diagrams of medium voltage switchgear. This time, the subject is the principle, and realization of…...

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Mar 26, 2020 | Medium Voltage ♛

AC and DC facilities in electrical station services of major power plant types

In a power plant, the electrical station services (abbreviated to SS in the following) consists of all the DC facilities from 24 to 220 V and AC facilities up to…...

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Mar 23, 2020 | Energy and Power ♛

The art of determining the right cross-section of low voltage conductors

To be clear at the beginning of this article, determining the cross-section of conductors and cables is, for sure, not the most exciting part of electrical design. There are much… Read more

Mar 16, 2020 | Cables

Mastering single line and wiring diagrams: Interlocking between MV cubicles

There are numerous variations of MV switchgear topology, measurement, and control logic. However, there are also some basic rules related to these aspects which may be frequently seen in practice,…...

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Mar 12, 2020 | Medium Voltage ♛