Power Substation
The four most common switchgear-based substation types
The subject of this article is to discuss few most common types of MV/HV power substations based on the type of distribution switchgear, which can be seen in every distribution network. There are a number of methods of construction of… Read more
Aug 29, 2018 | By Edvard Csanyi
Power Substation
The zone selective interlocking logic of protection relays
This function significantly reduces the tripping time of the circuit breakers closest to the source. It can be used for zone selective interlocking (ZSI) in closed ring networks. It applies to the phase overcurrent 50/51, directional phase overcurrent 67, ground fault… Read more
Aug 27, 2018 | By Edvard Csanyi
Power Substation
Protocols applied for time synchronization in a digital substation automation
Substation automation is a mission-critical task and electric power utilities must synchronize across large-scale distributed power grid switches in a substation to enable smooth power transfer and maintain power supply integrity. Precise time synchronization is therefore required to ensure that… Read more
Aug 22, 2018 | By Edvard Csanyi
Energy and Power
The study of harmonics and LV energy compensation
The harmonic currents are mainly down to the nonlinear loads in the installations. The most frequent harmonic sources are linked to the use of electric arcs (welding, arc furnaces, discharge lamps, etc.) and to magnetic machines. Power electronics (converters, variable… Read more
Aug 20, 2018 | By Edvard Csanyi
Electric Motor
Practical tips on how not to burnout an electric motor
There are many reasons why an electric motor could start heating up. For example, when another starting duty is used then the informed one on the motor nameplate may result in motor overheating and consequent motor damage. Due to high… Read more
Aug 15, 2018 | By Edvard Csanyi
Protection
The fundamentals of protection relay co-ordination and time/current grading principles
Transmission and distribution systems are exposed to overcurrent flow into their elements. In an electric power system, overcurrent or excess current is a situation where a larger than intended electric current exists through a conductor, leading to excessive generation of… Read more
Aug 13, 2018 | By Edvard Csanyi
Energy and Power
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The technology behind distributed control system (DCS) in a thermal power plant
A DCS is the heart of a thermal power plant’s instrumentation and control systems. DCS stands for ‘distributed control system’, and the term ‘distributed’ means that several processors are operating together. This is usually achieved by dedicating tasks to different…...
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Aug 09, 2018 | By Edvard Csanyi
Energy and Power
8 practical applications of testing ground system using clamp-on tester
First of all, it is extremely important that the operator/engineer understand the ground system that is being tested. The clamp-on measurement works well in many situations, but it has limitations and is not applicable in some configurations. Clamp-on ground testing… Read more
Aug 08, 2018 | By Edvard Csanyi
Energy and Power
Generator earthing and stator earth fault protection
Generating unit is a pretty complex system made up of the generator stator winding, its transformer and unit transformer (if present), the rotor with its field winding and excitation system, and the prime mover with its associated auxiliaries. Many different… Read more
Aug 06, 2018 | By Edvard Csanyi
Energy and Power
An algorithmic approach to space optimized design of modular switchboards
Modular Switchboards are used for electrical power distribution in industrial and commercial locations. It is often important to know the dimensions of the Switchboards beforehand, especially in case of large installations like a Power Plant. The details are used for… Read more
Aug 01, 2018 | By Apurva Singh
Power Substation
The network of data acquisition in a digital substation
The data acquisition in electric power system is very important and includes a lot of areas such as substation. Digital substation is one of the key parts of smart grid and the network of process layer is an important foundation… Read more
Jul 30, 2018 | By Edvard Csanyi
Medium Voltage
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Nine topologies of medium voltage ring-main systems you should know about
Power systems are constructed can be operated as radial systems, ring-main systems or meshed systems. This technical article deals with nine most common topologies of ring-main systems, their characteristics and applications. Ring-main systems are common in the medium voltage range…....
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Jul 27, 2018 | By Edvard Csanyi
Premium Content
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Current and voltage digital transformation in a modern substation protection and automation
Developments in communication have done much to realize the digital substation, but to realize a full digital substation it is necessary to have everything in digital form. Whilst much substation protection, control, and automation technology has always been digital (trip…...
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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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Jul 25, 2018 | By Edvard Csanyi
Energy and Power
Installing and setting into operation of automatically controlled compensation banks
During previous decades manufacturers of automatic compensation banks faced increasing competition worldwide. They were forced to produce as economically as possible. Now, new technologies have been developed compared with the past when capacitors were bigger and heavier. Minimizing capacitors enabled… Read more
Jul 23, 2018 | By Edvard Csanyi
Energy and Power
How to create a specific neutral earthing system within existing one (islanding)
Each neutral earthing system has advantages and disadvantages for the safety of property, electromagnetic compatibility or continuity of service. The main system must therefore be chosen according to these criteria, but the characteristics of the system, the receivers, and the… Read more
Jul 18, 2018 | By Edvard Csanyi
