Power Substation
How to avoid unnecessary replacement of a switchgear by limiting short-circuit fault current
Short-circuit fault current limiters come in a variety of kinds for use in low, medium, high, and extra high voltage systems. Some have been in service for many years, such as the traditional limited series reactor. Other technologies, such as… Read more
Aug 29, 2022 | By Edvard Csanyi
Energy and Power
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Inside the capacitor bank panel: Power factor correction, calculation and schematics
Various calculations must be performed during the electrical design stages of any project to deliver a safe electrical system for the end user. One of the essential things that must be taken into account after calculating the total and demand…...
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Aug 22, 2022 | By Mohammed Ayman
Energy and Power
Inside the power grid collapse and measures for preventing voltage instability and loss
The problem of voltage stability and voltage collapse has been studied and investigated for some decades now. A number of incidents have appeared around the world and some intensive work has been made to better understand the phenomena and to… Read more
Aug 15, 2022 | By Edvard Csanyi
Protection
Breaker failure protection applications of modern numerical distance relays
Modern numerical distance relays are equipped with a wide range of protection features, including overcurrent, overvoltage, undervoltage, underfrequency, overfrequency, breaker failure, synchronism check, power swing blocking and tripping, pilot protection schemes, digital relay-to-relay communications capability, logic programmability, and sophisticated math… Read more
Aug 01, 2022 | By Edvard Csanyi
Energy and Power
Key points on how to design a fault-tolerant and reliable facility distribution system
Nowadays, power system reliability is more important than ever. Regardless of how reliable the individual power-system components may be, some sort of power-system redundancy is necessary to attain high levels of power-system reliability, with the ultimate aim being 24 hour/day… Read more
Jul 18, 2022 | By Edvard Csanyi
Energy and Power
The most often low-voltage switchboard supply schematics implemented on-site
This technical article is dedicated to several different low voltage switchboard supply schematics often installed on-site. First, we shall look at the several standard LV switchboard supply schematics (network supply only), then supply schematics for switchboards backed up by generators,… Read more
Jul 04, 2022 | By Edvard Csanyi
Power Substation
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What will happen to digital substations once the internet drops dead for good?
Here at EEP, we have already covered multiple aspects of digital substations, ranging from design, upgradations, and whatnot. We may continue writing till eternity and still be left playing catchups with the latest addition to advancements in power systems design…...
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Jun 27, 2022 | By Bishal Lamichhane
Protection
Shunt reactor fundamentals: Connections in the substation, switching and protection practice
Due to changes in the generation and load structure, the transmission and distribution networks are always encountering new challenges. Many regions, for example, are gradually changing their power networks, such as expanding generation, joining local/regional grids, and moving from overhead… Read more
Jun 20, 2022 | By Edvard Csanyi
Power Substation
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Should we be concerned about the cybersecurity of modern digital substations?
Swift communication and interoperability are two primary aspects of modern digital substations that make them stand out in the protection and monitoring front. Apparently, the same features sometimes make them vulnerable to external cyber threats if left unprotected. While there…...
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May 30, 2022 | By Bishal Lamichhane
Energy and Power
How to handle overvoltages before any damage is done? Surge protection in a nutshell.
Prevention is better than cure, we all know this, and this is true not only for people, but also for the health of your electrical and electronic components and equipment. Smart and cost-effective strategies demand an investment in surge protection…. Read more
Apr 11, 2022 | By Edvard Csanyi
Maintenance
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Capacitor banks protection, cautions and maintenance tips
It would not be wrong to say that humanity has never consumed so much electricity, and to make the paradox bigger, there is still a lack of energy. The sharp increase in consumption in the last couple of decades has…...
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Apr 04, 2022 | By Rahmatullah Alam
Medium Voltage
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Medium voltage switchgear: Important design considerations and applications
This technical article explains various aspects of the application of medium voltage switchgear and highlights the considerations for the selection of suitable circuit breakers for different applications. Medium voltage switchgear, commonly known as MV switchgear, play a significant role in…...
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Mar 14, 2022 | By Edvard Csanyi
Power Substation
The essentials of necessary auxiliary relays in tripping and control applications
Tripping circuit breakers and operating alarms in control and protection applications usually require more than one relay contact. Tripping relays are used to multiply the number of contacts available, provide isolation between the source and system operating element and meet… Read more
Feb 28, 2022 | By Edvard Csanyi
Power Substation
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How to use Lockout Relay (master trip relay) in substation protection and control design
Lockouts and auto-reclosures are apprentices of power systems protection that have long served to regulate power supply and safeguard important components from probable catastrophes. But are we taking them seriously enough? In implementing the lockout features, apart from their placements…...
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Feb 21, 2022 | By Bishal Lamichhane
Energy and Power
Emergency breaking, stop and isolation intended to eliminate danger as quickly as possible
As their name indicates, emergency operations are intended to eliminate, as quickly as possible, a danger that occurs unexpectedly. The emergency break is designed to cut off the electrical power, whereas the emergency stop takes account of the danger of… Read more
Feb 14, 2022 | By Edvard Csanyi
