Energy and Power
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Loading issue that seriously affects transformer operation
Before its on-site installation and commissioning, a transformer has been designed and tested to a particular specification or standard. In real life, a transformer must adapt to a number of variations from the standard operational criteria set down in these…...
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Jun 16, 2025 | By Edvard Csanyi
Premium Content
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The Problems of Modern Distribution Systems in the Age of Distributed Energy Resources (DERs)
The evolution of power distribution networks is being shaped by unprecedented growth in distributed energy resources (DERs), particularly rooftop solar and other inverter-based technologies. Traditionally designed for one-way power flow from substations to end-users, distribution systems are now experiencing reverse…...
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Jun 02, 2025 | By Muhammad Kashif
Power Substation
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Behind upgrading the 50+ years old 132/11 kV substation
Let’s look at the 50+ years old 132/11 kV substation that needs refurbishing and uprating as an illustration of the complicated mix of concerns that need to be considered. It shows that there are more than just financial factors to…...
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May 19, 2025 | By Edvard Csanyi
Power Substation
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Why do power grid crashes and total blackouts happen?
Minimizing the likelihood of blackouts is of the highest importance due to the significant effects that would result from partial or total blackouts in highly industrialized nations. Additional difficulties have been and will be posed by the growing use of…...
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May 12, 2025 | By Edvard Csanyi
Power Substation
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Pitfalls hidden in determining transformer tank, bushings, insulation, and impedance
Managing specification and assets for large power transformers such as tank, bushings, insulation and short-circuit impedance is quite challenging. One mistake and you’re done! Power transformers play a real critical role in high-voltage transmission systems, providing strict voltage transformation, system…...
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Apr 28, 2025 | By Muhammad Kashif
Electric Motor
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MCC Circuit Featuring Auto Re-Closure Relay Functionality
An MCC circuit of a motor could be based on the Direct Online Starter (DOL) or Star Delta Starter which has something to do with the requirement of the power system in an industry. But it could have additional logics…...
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Apr 14, 2025 | By Umer Nasir
Premium Content
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Four most important power transformer analyses
To be clear, nowadays, you can perform dozens of analyses on a transformer, and all of them are very important. However, it should not be that hard to separate a few of them, the most important ones. Let’s discuss insulation,…...
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Mar 31, 2025 | By Muhammad Kashif
Power Substation
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Alarms Coming From the Shunt Reactor You Must Never Ignore (and what should be done)
Nowadays, monitoring of transformers and shunt reactors is pretty much common. However, the difference is in the nuances. There are dozens of parameters that can be monitored and the the overall cost is not negligible at all. There are many…...
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Mar 24, 2025 | By Edvard Csanyi
Power Substation
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Design of Auto/Manual Changeover Logic Between Two Busbars Within a Substation
In any industry/plant, the operations rely heavily on interruption free supply of power to meet the targets of production. As a result, we see emergency generators, UPSs or renewable energy sources to save us from complete shutdown. This back-up or…...
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Mar 10, 2025 | By Umer Nasir
High Voltage
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Execution of a Turnkey Substation Project: How not to step on the same rake again
Behind the successful execution of a turnkey substation project is always successful project management. Young engineers working on the execution of substation projects often repeat the same mistakes that often lead to unforeseen project costs. Generally speaking, management of turnkey…...
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Mar 03, 2025 | By Edvard Csanyi
Power Substation
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Technical Documentation for a Turnkey Substation
A Turnkey Substation is a substation that is designed, constructed, and commissioned by a Service Provider according to the specifications established by the Customer. A Service Provider is an entity (business) that provides services to other entities (companies). The Customer,…...
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Feb 17, 2025 | By Edvard Csanyi
Power Substation
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Interlocking for 380kV GIS Substation: Insights into CB and isolator test and service positions
Interlocking systems are critical to the safe and efficient operation of high-voltage substations, ensuring proper sequencing of equipment operations and preventing dangerous scenarios such as simultaneous energization or grounding. This technical article delves into the intricacies of the 380kV interlocking…...
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Feb 03, 2025 | By Muhammad Kashif
Energy and Power
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Design of Emergency Diesel Generator Control Circuit Logic for Integration with the Utilities
Many utilities have diesel generators added to their energy mix to act as an emergency back-up source when a power shutdown occurs. These emergency generators cannot thwart the entire system from going down but are critical for safe shutdown of…...
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Jan 27, 2025 | By Umer Nasir
Power Substation
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Interlocking for 380kV GIS Substation: One-and-a-half breaker scheme analysis
This article delves into various aspects of the one-and-a-half breaker scheme applied to 380kV GIS switchgear, starting with its benefits and operational framework. It further examines the critical interlocking concepts, including open and closed positions, the “under operation” state (dangerous…...
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Jan 13, 2025 | By Muhammad Kashif
Electrical Machines
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Maintenance Practices to be Followed for On-Site Generator Overhauling
This discussion will focus on the on-site overhauling of a gas-powered generator, detailing the essential procedures for its enhancement. It is a common practice for utilities to test electrical assets periodically after a certain interval of time mainly as part…...
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Dec 30, 2024 | By Umer Nasir
