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
Electrical thumb rules for staying safe and alive
How can one stay safe and alive while working in a power system? That’s a good question; however, there are a dozen answers. But let’s start with the first answer. The primary concerns about electrical safety are the unseen nature… Read more
Nov 27, 2024 | By Edvard Csanyi
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
Star-delta starting used with large horsepower motors
Star-delta starting is frequently employed with high horsepower motors to mitigate inrush current during the start-up stage and to reduce starting torque. Star-delta starting involves initially connecting the motor stator windings in a star configuration during the motor startup phase,… Read more
Oct 16, 2024 | By Edvard Csanyi
Design engineering and the black start of a power plant
A black start refers to the ability of a power plant to restart itself using its own resources in the event of a complete shutdown and isolation from external power sources. Initiating a black start at an industrial plant might… Read more
Aug 19, 2024 | By Edvard Csanyi
Handy earthing guidelines for true engineers
In the world of electrical engineering, ensuring the safety and reliability of power systems is paramount. A critical aspect of this is the proper implementation of earthing and bonding systems. This article delves into the fundamental concepts and applications of…...
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Jul 29, 2024 | By Muhammad Kashif
How (should) power utilities handle grid failures by utilizing mobile substations
Every nation has numerous vital facilities that are largely dependent on electricity to function. Infrastructures that are critical to a quick response to outages include the public health system, the communications sector, and government services like emergency first responders. Nonetheless,…...
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Jul 22, 2024 | By Edvard Csanyi
Best practice in hard times: How to safeguard the hundreds and thousands of substations
Like it or not, hard times are in front of us, by all means. I won’t deal the hard times now, but instead, I’ll shortly say that it’s all about the energy resources and who owns them. It’s also not…...
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Jun 17, 2024 | By Edvard Csanyi
Design Engineering For Battery Energy Storage Systems: Sizing, Selection and Operation
In this technical article we take a deeper dive into the engineering of battery energy storage systems, selection of options and capabilities of BESS drive units, battery sizing considerations, and other battery safety issues. We will also take a close…...
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Jun 10, 2024 | By Kitab Paul Shah
ATS Schematics and Logic Analysis for a Substation 415V AC Auxiliary Supply Panel
In modern electrical power systems, ensuring a reliable and continuous supply of electricity is critical, particularly in facilities where downtime can result in significant operational disruptions and financial losses. Low voltage automatic transfer schemes at substations play a vital role…...
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Jun 03, 2024 | By Muhammad Kashif
BESS (Battery Energy Storage Systems) in LV and MV Power Networks: Practical Guide
This article aims to inform the reader about the applications, procurement, selection & design, and integration of BESS (battery energy storage systems) into LV and MV power networks. The intended audience is project and design engineers who shall perform procurement…...
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May 27, 2024 | By Kitab Paul Shah
Mastering Electrical Schematics: From Circuit Topology to Switching Classifications
This technical article aims to delve into various aspects of electrical schematics, symbol representation, and isolation methodologies, shedding light on fundamental concepts and practical applications within the field. From the intricacies of electrical connection and circuit topology to the symbolism…...
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May 06, 2024 | By Muhammad Kashif
Twelve high voltage cable construction techniques used worldwide
This technical article discusses twelve different methods for laying high voltage cables. Out of the ten, four are deemed conventional and eight are deemed progressive. Many various utilities and companies all across the globe are making use of them, though… Read more
Apr 29, 2024 | By Edvard Csanyi
The Brain of a Gas-Insulated Switchgear (GIS): The Bay Local Control Cabinet (LCC)
A local control cabinet (LCC) is commonly installed at each bay location to house the wiring of the GIS bay circuits and connect it to the substation control room. The LCC comprises a mimic diagram, switches, indicators, and annunciator interlocks,… Read more
Apr 15, 2024 | By Edvard Csanyi
Circuit breaker schematics in a nutshell: Tripping, closing and blocking coil arrangements
This technical article embarks on a comprehensive exploration of various facets of circuit breaker technology, traversing from the fundamental principles of solenoid coils to the sophisticated mechanisms of SF6 density monitoring circuits. Delving into the intricacies of circuit breaker tripping…...
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Mar 25, 2024 | By Muhammad Kashif
