Energy and Power
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 | By Edvard
Energy and Power
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 | By Group Of Authors
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Lightning protection system – How much of design and material is really needed?
Within this article, an overview of fundamental principles regarding design and construction of lightning protection system (LPS) will be given. Relevant IEC 62305 standard will be used as a reference…....
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Jun 28, 2019 | By Miodrag Kokotovic
Protection
Differential protection of a transmission line with digital communication via pilot wires
Wire connections have a limited transmission bandwidth (3.4 kHz in the case of telephone twisted pairs). In the past they were used for differential protection with analog (50 Hz) measured… Read more
Jun 26, 2019 | By Edvard
Energy and Power
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 | By Edvard
Protection
Fuses as the oldest and simplest method of protecting rural distribution systems
Fuses are the oldest and simplest methods of protecting rural networks. There is no method as simple as fuses, but don’t be tricked, modern fuses are very reliable devices. All… Read more
Jun 19, 2019 | By Edvard
Protection
Using earth & phase directional protection where power flow direction might change
Directional protection relay is often used in all network parts in which the direction of flow of power might change, notably in the instance of a short circuit between phases… Read more
Jun 17, 2019 | By Edvard
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The most important precautions during commissioning and start up of LV switchgear
Low voltage switchgear can often be a very complex and expensive piece of electrical equipment, usually representing one of the most critical and crucial parts of the project. In order…...
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This technical article/guide requires a Premium Membership. You can choose an annually based Plus, 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.Check out each plan’s benefits and choose the membership plan that works best for you or your organization.
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Jun 13, 2019 | By Miodrag Kokotovic
Energy Generation
Typical electrical distribution scheme and SCADA system of an oil/gas production plant
Power can be provided from mains power or from local gas turbines or diesel generator sets. Large facilities have high power demands, from 30 MW and upwards to several hundred… Read more
Jun 12, 2019 | By Edvard
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Major components you can spot while looking at opened LV and MV switchboards
Depending on the size of the building or factory site and whether the supply is high voltage or low voltage, there may be requirements for both a main high voltage…...
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Jun 10, 2019 | By Edvard
Energy and Power
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 | By Edvard
Protection
What is the unit protection and why it’s widely used in transmission networks
The whole power system must be protected. This is achieved by dividing it into overlapping zones. If a fault occurs in a particular zone, only the protection system covering that… Read more
Jun 03, 2019 | By Edvard
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Eight common mistakes in reading and creating single line and wiring diagrams
As I wrote in one of my previous articles, called How to read single line and wiring diagrams, single line diagrams are simplified and digest picture of the whole switchboard,…...
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This technical article/guide requires a Premium Membership. You can choose an annually based Plus, 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.Check out each plan’s benefits and choose the membership plan that works best for you or your organization.
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May 30, 2019 | By Miodrag Kokotovic
Power Substation
Integration of IEC 61850 in power plant automation, control, and protection systems
IEC 61850 is much more than a protocol. The general scope of the standard is designed to support the communication of all functions being performed in a substation. Its main… Read more
May 29, 2019 | By Edvard
Power Substation
Solving the architectural and reliability puzzle of a protection and control system
This technical article discusses some of the basics of protection and control as successfully used for decades. Majority of these general requirements will have to be retained by new communication-based… Read more
May 27, 2019 | By Edvard
