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
Energy and Power
What is Time Grading in Relay Protection
What are time grading and relay coordination in protection philosophy? Let’s try to figure out how to grade (or rank) the relays’ operation times so that the one nearest the problem operates first. In Radial Distribution Systems, time-graded protection works… Read more
Mar 07, 2025 | By Edvard Csanyi
Power Substation
Comprehensive Guide to Transformer Specification: Ensuring Compliance with IEC 60076
Power transformers are the backbone of modern electrical infrastructure, enabling the efficient transmission and distribution of electricity across vast networks. Given their critical role in maintaining grid stability and power quality, transformers must be designed, manufactured, and tested in accordance… Read more
Feb 24, 2025 | By Muhammad Kashif
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
Medium Voltage
How to configure medium voltage switchgear: Key influences and stress variables
Let’s discuss the most critical factors that influence the correct configuration of medium-voltage switchgear. As you will see below, for the most common applications of MV switchgear, there are at least six main categories that are very important in the… Read more
Feb 10, 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
Low Voltage
Good operating practices for switchgear circuit breakers and contactors
The purpose of this guideline is to provide suggested practices for the operation and inspection of medium voltage (2 to 13.8 kV) and low voltage (200 to 480 volt) draw-out switchgear circuit breakers and contactors. Good operating practices are critical… Read more
Jan 20, 2025 | By Edvard Csanyi
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
Power Substation
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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
Energy and Power
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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
Energy and Power
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
News
Your Black Friday in EEP 🎁 (20% + 30% OFF)
Hi there, hope things is good with you! It gives us great pleasure to present to you two Black Friday offers for electrical engineers: 20% off on the EEP Pro Membership plan, and 30% off on all video courses available… Read more
Nov 25, 2024 | By Edvard Csanyi
Power Substation
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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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This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
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Nov 18, 2024 | By Muhammad Kashif
