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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...
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Failures, Testing and Protections Associated with Field Winding of a Generator
Generator field winding is an integral part of the generator set which is responsible for generating the magnetic field that induces the stator emf when the rotor rotates. Regulation of... Read more...
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What is a Load Tap Changer (LTC)?
We all experienced the ocasional flickering of the house lights during evenings. This usually indicates a load tap changer (LTC) adjustment, or a sign that the bulb is about to drop dead, but that’s...
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Bringing new life to an old Air-Insulated Substation (AIS)
An increasing number of substations globally are aging, while the construction of new ones is hindered by competitive limitations, rigorous environmental rules, and community acceptance issues....
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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...
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Synchro Check Schemes: Key Techniques and Considerations for Power System...
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...
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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...
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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...
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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...
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Once Again, the Entire Island of Cuba Falls Into Darkness as Power Grid...
HAVANA, December 4 – Cuba announced the initiation of power restoration following the collapse of the island’s electrical grid, marking the latest incident in a series of statewide blackouts that...
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Measures to reduce interference from Variable Speed Drives
Often referred to as Variable Frequency Drives, AC Variable Speed Drives (VSD) generate a great deal of electrical interference. Pulse Width Modulation (PWM) is the standard method for controlling...
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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...
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Best practice for providing LV supply into high earth potential rise sites in...
During the passage of earth-fault current a substation earth electrode is subjected to an earth potential rise. Potential gradients develop in the surrounding ground area and these are highest...
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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...
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The issue of a proper phase sequence (CW or CCW) on electric motors and...
Phase sequence or phase rotation is one of the most confusing concepts in the electrical engineering. It is often confused with motor rotation. For instance, one would say: “If it doesn’t turn the way...
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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...
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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...
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Design of Emergency Diesel Generator Control Circuit Logic for Integration...
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...
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Interlocking for 380kV GIS Substation: Insights into CB and isolator test and...
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...
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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...
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