Power Substation
6 different types of relaying schemes to protect the EHV and UHV transmission lines
A substation can employ many relaying systems to protect the equipment associated with the station. The most important of these are: transmission and distribution lines emanating from the station, step-up and step-down transformers, station buses, breakers, shunt and series reactors… Read more
Apr 18, 2018 | By Edvard Csanyi
Power Substation
Reliability Or Unreliability Of Capacitor Banks, Failure Modes and Case Ruptures
Several problems contribute to the overall reliability or unreliability of capacitor banks. In a detailed analysis of Kansas City Power & Light’s automated capacitor banks, Goeckeler reported that blown fuses are the biggest problem, but several other problems exist. Their automation… Read more
Apr 16, 2018 | By Edvard Csanyi
Power Substation
Coordination problems in electrical networks that lead to nuisance CB tripping
There are a number of problems that commonly occur in industrial and commercial networks, and some of them are covered in the following paragraphs. Coordination malfunctioning is leading to nuisance tripping of circuit breakers and unwanted electrical effects. Let’s discover… Read more
Apr 11, 2018 | By Edvard Csanyi
Power Substation
HV Substation Equipment For Engineers In a Nutshell
Substations are locations where transmission lines are tied together. They fulfill a number of functions. One of them is that they allow power from different generating stations to be fed into the main transmission corridors. Power substations also provide a… Read more
Apr 09, 2018 | By Edvard Csanyi
Protection
Communication Channels As The Weakest Link In The System Protection Chain
Protection engineers have a variety of communication channels to use for relay protection. This is a field in itself, and is very important for a discussion of the protective systems. Historically and currently, channels generally have been the weakest link… Read more
Apr 04, 2018 | By Edvard Csanyi
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Hardware and software components of energy management systems (EMS) and SCADA
The complete Energy Management System (EMS) system along with SCADA and the front-end systems have been identified as one of the more complex systems deployed. The only system that could be considered to be more complex than the EMS is…...
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Mar 23, 2018 | By Edvard Csanyi
Energy Generation
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Why does generator-current breaking differ from other switching devices in T&D systems
There are few switching situations that differ from the duties standardized for switching devices in transmission and distribution systems. One of these special situations are generator-current breaking. Generator circuit-breakers are breakers applied at a rated voltage matching the rated voltage…...
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Mar 09, 2018 | By Edvard Csanyi
Protection
Achieving Relay Coordination and Selective Short Circuit Protection In Transmission Networks
The selected protection principle affects the operating speed of the protection, which has a significant impact on the harm caused by short circuits. The faster the protection operates, the smaller the resulting hazards, damage and the thermal stress will be…. Read more
Mar 05, 2018 | By Edvard Csanyi
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Meet the Real Heart of Power System Operations – The Transmission Control Center
The transmission control centre is the real heart of every utility’s power system operations. Typical transmission control centres have three main desks – the generation, transmission and scheduling desk. Let’s take look at three main transmission and other support desks…...
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Feb 23, 2018 | By Edvard Csanyi
Transformers
Losses in the power transmission system and short, medium and long line model analysis
Like all other power system systems, no matter how carefully the system is designed, losses are present and must be modeled before an accurate representation of the system response can be calculated. Due to the size of the area that… Read more
Feb 21, 2018 | By Edvard Csanyi
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Five telecommunication systems embedded in smart grid applications and services
Power utilities use telecommunication systems either as a support for grid assets’ operation or as the enabler for voice communications among operating staff. The main objective of utility telecommunications is to connect remote premises and staff with central premises and…...
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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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Feb 09, 2018 | By Edvard Csanyi
Protection
The Essentials Of Numerical Relays, Their Features And Important Considerations
The distinction between digital and numerical relays is particular to Protection. Numerical relays are natural developments of digital relays due to advances in technology. They use one or more digital signal processors (DSP) optimised for real time signal processing, running… Read more
Feb 07, 2018 | By Edvard Csanyi
Power Substation
What is what in outdoor HV substation? How to identify elements by shape and function?
It’s not always an easy task to explain what is what in high voltage substations. Shapes of the major elements are mostly similar through substations, but there are also combinations of two and more elements with integrated functions. This technical… Read more
Jan 10, 2018 | By Edvard Csanyi
Power Substation
HV Transmission Line Components (Towers, Conductors, Substations, ROWs and Roads)
The towers and conductors of a transmission line are familiar elements in our landscape. However, on closer inspection, each transmission line has common components with unique characteristics, beginnings and ends. In this article, we list main transmission line components and… Read more
Jan 08, 2018 | By Edvard Csanyi
Electric Motor
10 Common Questions You Can Expect In Electrical Engineering Examination Test
This examination will focus on testing the fundamentals of electrical engineering from low voltage to high voltage. Of course, you can use huge EEP’s resources for help in calculations and finding right answers. Ok, let’s start with questions. You can… Read more
Dec 26, 2017 | By Edvard Csanyi
