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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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
Power Substation
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The limit of the substation noise level over which it begins to irritate the community
This article will try to shed some light on the most common noise-related concerns associated with existing substations and provide mitigation methods to address these concerns. The continuous noise created by the operation of power transformers and reactors, as well…...
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Jan 24, 2022 | By Edvard Csanyi
Energy and Power
Learn how to prevent unplanned downtime and keep critical operations up and running
Power availability and reliability is a persistent problem and no matter the industry, or type of facility you run, downtime presents a costly risk to your operations and bottom line. Detecting electrical system vulnerabilities to prevent potential issues while planning… Read more
Jan 17, 2022 | By Edvard Csanyi
Power Substation
Differential protection (87R/∆I) applied to bus connected oil-immersed shunt reactors
Differential protection is the most commonly applied protection function for bus-connected oil-immersed shunt reactors. The function offers instantaneous protection for internal phase to phase and phase to ground faults. Internal in this context means faults located in the area between… Read more
Jan 03, 2022 | By Edvard Csanyi
Premium Content
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Where and how to find the root cause of a power transformer failure (troubleshooting guide)
When Whatsapp, Facebook, or Gmail is down, it’s manageable, but if transformers fail, the entire business comes to a standstill. No-power-no-business transformers, as the heart of every substation, impact industries and affect the country’s economy and have social and political…...
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Dec 27, 2021 | By Rahmatullah Alam
Electric Motor
Eight most damaging overvoltages in industrial systems (root causes and prevention)
Electric insulation in energized systems is continuously under stress. Electric systems are subject to disturbances of many types which unavoidably produce overvoltages. However, the application engineer has at his command many system design principles which will greatly curb the magnitude… Read more
Dec 20, 2021 | By Edvard Csanyi
Energy and Power
How to modernize a power system while carrying the cost (examples of existing plant)
Existing power systems are often modernized although there is no expansion involved at the moment. The switchgear may be obsolete, representing a real hazard to the operating personnel and property. The circuit breakers may also have an inadequate interrupting capacity…. Read more
Dec 06, 2021 | By Edvard Csanyi
Power Substation
How breaker failure relaying works?
Primary relays operate for a fault in their zone of protection in the shortest time and remove the fewest system elements to clear the fault. On the other hand, backup relays operate in the event that the primary relays fail…. Read more
Oct 15, 2021 | By Edvard Csanyi
