Advice in choosing the right neutral earthing system for your installation
The choice of a neutral earthing system is dependent on requirements and objectives that are often contradictory to such an extent that sometimes several systems have to be created within one installation (islanding) in order to meet safety, maintainability, or… Read more
Feb 03, 2020 | By Edvard Csanyi

Eight criteria you should consider when choosing the right MV/LV transformer type
Although there are few common-sense rules that every electrical engineer follows when choosing the transformer type, it’s always a good idea to name the most important of them. This technical article will briefly explain the eight most common and essential… Read more
Jan 29, 2020 | By Edvard Csanyi

Connections and composition of LV/MV/HV capacitor banks
Compensation capacitors are installed in numerous locations in electrical installations. They are to be found in high voltage transmission and distribution systems, in transformer substations and also at various levels in low voltage installations. Capacitors therefore have to be made… Read more
Jan 27, 2020 | By Edvard Csanyi

How does low voltage protection unit work and what’s the most important to understand
If we are talking about LV applications, the protection (or trip) unit is a functional part of a circuit breaker. In most cases, they are physically integrated into the same housing as well. To better explain the purpose of the…...
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Jan 23, 2020 | By Miodrag Kokotovic

IEC and NEMA/IEEE ratings of current transformers (CTs) in medium voltage applications
First, let’s remind ourselves of the basics in a few sentences. That is something you must know. A current transformer (CT) is designed to produce a secondary current which is accurately proportional to the primary current. It consists of a… Read more
Jan 20, 2020 | By Edvard Csanyi

How to avoid common mistakes during wiring and startup of power factor correction (PFC) cubicle
Power factor correction (PFC) and reactive power compensation (RPC) are often used as synonyms in practice. Although they are similar and mutually dependent terms, they don’t represent the same thing. RPC is a procedure for reducing total reactive power of…...
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This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
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Jan 16, 2020 | By Miodrag Kokotovic

The story of designing the electrical part of MV/LV power substation
Designing a new MV/LV distribution substation is somewhat complicated and involves a lot of factors you must take care of. This technical article will try to present the essential steps in starting the design process. The beginning is always the… Read more
Jan 15, 2020 | By Edvard Csanyi

The problem of induced voltages in control cables in high voltage substations
Cabling in power substations is very important due to the fact that they are the longest parts of a system and therefore act as efficient antennas that pickup and or radiate noise. In HV substations, there are different kinds of conductors… Read more
Jan 13, 2020 | By Edvard Csanyi

The art of arc-protection relaying in MV applications
Arc-flash detection relays are superior and provide much faster arc-flash detection times compared to the differential relays. With modern arc-flash detection technology, this detection time is of the order of ¼ cycles or even lower, based on 50/60 Hz. High-speed…...
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This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
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Jan 08, 2020 | By Edvard Csanyi

14 disturbance types that mess up power quality and 50/60 Hz sinusoidal signal
The quality of electrical energy seems to be very popular nowadays. It may be affected either by events that occur on the distribution systems (switching, lightning, etc.) or by the use made of the electricity when for example certain loads… Read more
Jan 06, 2020 | By Edvard Csanyi

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 is yet to come. We all had some ups and… Read more
Dec 31, 2019 | By Edvard Csanyi

Essential fundamentals of harmonics distortion for future power quality experts
It’s quite easy to understand what is the harmonics distortion. 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 | By Edvard Csanyi

Soft starter for potable water well pump (wiring diagram, troubleshooting example)
This article will analyze a real example of an electrical switchboard for a potable water well pump, containing a soft starter as one of the major components. Besides the explanation of the wiring diagram and working logic, some technical problems…...
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This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
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Dec 27, 2019 | By Miodrag Kokotovic

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 common fault type in LV installations is an earth fault,… Read more
Dec 25, 2019 | By Edvard Csanyi

Five switching devices you are likely to spot in most of the low voltage switchgear
This technical article will try to shed some light on switching devices usually installed in low voltage switchgear – circuit breakers, contactors, disconnectors, load-break switches, switch disconnectors and fuses. There are many variations of these devices, but the core function… Read more
Dec 23, 2019 | By Edvard Csanyi
