What is Interlocking in substations, and what is it for?
Interlocking in substations is a critical aspect of power system protection and control, designed to ensure the safe and efficient operation of substation equipment. The primary objective of interlocking is to prevent hazardous situations, such as energizing an earthed circuit…...
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Dec 16, 2024 | By Muhammad Kashif
Voltage transformer selection scheme in complex substations
In substations, voltage transformers (VTs) are used extensively for energy metering, protection relay operations, and synchronization checks. Their design includes multiple cores, each dedicated to specific functions. For instance, a protection core, typically labeled 3P, offers acceptable accuracy for fault…...
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Dec 02, 2024 | By Muhammad Kashif
Synchro Check Schemes: Key Techniques and Considerations for Power System Stability
In power systems, synchronization is a fundamental requirement for connecting two sources of electric power, such as a generator to a grid or between segments of the power network. Ensuring that these sources are aligned in frequency, phase sequence, and…...
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Nov 18, 2024 | By Muhammad Kashif
Best Practices in Synchronization and Reactive Power Control in Power System
In the world of power systems, synchronization and reactive power control are crucial to maintaining stability, efficiency, and reliability. Synchronizing various power sources, such as generators and grids, ensures they operate in harmony to meet the demand and support the…...
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Nov 11, 2024 | By Muhammad Kashif
Grid Application & Technical Considerations for Battery Energy Storage Systems
In the quest for a resilient and efficient power grid, Battery Energy Storage Systems (BESS) have emerged as a transformative solution. This technical article explores the diverse applications of BESS within the grid, highlighting the critical technical considerations that enable…...
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Oct 28, 2024 | By Muhammad Kashif
Electrical thumb rules for switching, isolating and earthing
It is essential that the electrical engineers, or operators who will be in charge of switching, isolating, and earthing operations of the switchgear have a good understanding of the rules that must be followed. In addition, it is of the…...
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Oct 21, 2024 | By Edvard Csanyi
So automated, yet so hackable. Is your country’s power grid safe from cyberattacks?
Yes, many of today’s power grids are very sophisticated and automated. Every single event and piece of equipment is tracked, controlled, measured, and protected. But things aren’t as bright as it seems. As we can see, it turns out that…...
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Oct 14, 2024 | By Edvard Csanyi
Is storing excess energy in batteries worth integrating into the power system?
To be honest, the technology of energy storage in batteries is pretty hot nowadays. It’s smart for utilities worldwide to get in line to learn what it is and how countries can benefit from it. Battery Energy Storage Systems (BESS)…...
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Oct 07, 2024 | By Muhammad Kashif
Mastering Distance Protection and Calculations: Never Mess Up Protection Accuracy
The first part of this article series delved into the fundamentals of overcurrent protection, exploring the intricacies of relay coordination, the impact of source impedance, and the application of distance protection. These foundational concepts laid the groundwork for understanding how…...
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Sep 23, 2024 | By Muhammad Kashif
Managing power transformers in service: The most important economic aspects
Utilities are under intense pressure to maximize the use of their current transformer asset base in order to keep rates down while yet providing excellent reliability. In order to achieve higher loading during both regular and emergency operations, long-standing loading…...
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Sep 16, 2024 | By Edvard Csanyi
Mastering Distance Protection and Calculations: Advice and Serious Warnings
In 2004, I embarked on an intensive nine-month training program in protection and instrumentation. This experience laid the foundation for my deep understanding of substation protection systems, combining both theoretical knowledge and practical application. The first protection scheme we delved…...
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Sep 09, 2024 | By Muhammad Kashif
Dos and don’ts in site testing and commissioning distribution and transmission plants
The objective of the site inspection and test plan for testing and commissioning is to establish a comprehensive framework for conducting site testing and commissioning activities. It’s as simple as that! The site testing and commissioning of a transmission or…...
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Sep 02, 2024 | By Edvard Csanyi
Maintaining the integrity and earth resistance of substation earthing systems
At the beginning of my career in 2005, I had the opportunity to work at a 500kV substation with the National Transmission and Dispatch Company in Pakistan. During this time, I was introduced to various tools and techniques that were…...
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Aug 26, 2024 | By Muhammad Kashif
How to Design Effective Substation Grounding (Practical Tips)
Substation earthing, or grounding, is essential for electrical safety and reliability in substations, which are critical nodes in the power distribution network. Proper earthing ensures safe dissipation of fault currents into the ground, preventing dangerous voltage build-ups that could cause…...
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Aug 12, 2024 | By Muhammad Kashif
The Job of an Electrical Commissioning Engineer (Activities and Real World Examples)
This article aims to cover the activity of electrical commissioning. Such a task in its entirety would be immense. Commissioning can mean many things in different instances. This article aims to give a philosophical and high level conceptual overview of…...
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Aug 05, 2024 | By Kitab Paul Shah
