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... Read more

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View more at: https://electrical-engineering-portal.com/behind-upgrading-the-50-years-old-132-11-kv-substation Credit- EEE - Electrical Engineering Portal. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed.

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... Read more

The post Why do power grid crashes and total blackouts happen? appeared first on EEP - Electrical Engineering Portal.

View more at: https://electrical-engineering-portal.com/why-do-power-grid-crashes-and-total-blackouts-happen Credit- EEE - Electrical Engineering Portal. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed.

Thermal conditions of electrical equipment and temperature monitoring

Loose connections or worn out contact surfaces are the root causes of electrical system conduction troubles. They cause a local temperature increase, which worsens the contact quality even further as the current increases. This causes thermal runaway, which damages the... Read more

The post Thermal conditions of electrical equipment and temperature monitoring appeared first on EEP - Electrical Engineering Portal.

View more at: https://electrical-engineering-portal.com/thermal-conditions-electrical-equipment-temperature-monitoring Credit- EEE - Electrical Engineering Portal. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed.

Pitfalls hidden in determining transformer tank, bushings, insulation, and impedance

Managing specification and assests 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... Read more

The post Pitfalls hidden in determining transformer tank, bushings, insulation, and impedance appeared first on EEP - Electrical Engineering Portal.

View more at: https://electrical-engineering-portal.com/transformer-tank-bushings-insulation-impedance Credit- EEE - Electrical Engineering Portal. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed.

Best practices in earthing of metallic fences in HV outdoor substations

It is recommended that all substations have a perimeter fence surrounding the area where the electrical equipment is housed. As far as security measures go, it is the first line of defense. For the extra layer of protection, competent workers... Read more

The post Best practices in earthing of metallic fences in HV outdoor substations appeared first on EEP - Electrical Engineering Portal.

View more at: https://electrical-engineering-portal.com/best-practices-earthing-metallic-fences-hv-outdoor-substations Credit- EEE - Electrical Engineering Portal. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed.

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... Read more

The post MCC Circuit Featuring Auto Re-Closure Relay Functionality appeared first on EEP - Electrical Engineering Portal.

View more at: https://electrical-engineering-portal.com/mcc-circuit-featuring-auto-re-closure-relay-functionality Credit- EEE - Electrical Engineering Portal. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed.

The intricacy of medium-voltage circuit breaker ratings

When you look at the IEC 62271-100 for MV breaker ratings, you will likely find a bunch of rated-something ratings. It could be hard for young engineers to catch up with all ratings, especially since several ratings are similar in... Read more

The post The intricacy of medium-voltage circuit breaker ratings appeared first on EEP - Electrical Engineering Portal.

View more at: https://electrical-engineering-portal.com/medium-voltage-circuit-breaker-ratings Credit- EEE - Electrical Engineering Portal. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed.

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,... Read more

The post Four most important power transformer analyses appeared first on EEP - Electrical Engineering Portal.

View more at: https://electrical-engineering-portal.com/four-most-important-power-transformer-analyses Credit- EEE - Electrical Engineering Portal. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed.

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... Read more

The post Alarms Coming From the Shunt Reactor You Must Never Ignore (and what should be done) appeared first on EEP - Electrical Engineering Portal.

View more at: https://electrical-engineering-portal.com/alarms-coming-from-shunt-reactor Credit- EEE - Electrical Engineering Portal. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed.

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... Read more

The post Design of Auto/Manual Changeover Logic Between Two Busbars Within a Substation appeared first on EEP - Electrical Engineering Portal.

View more at: https://electrical-engineering-portal.com/design-auto-manual-changeover-logic-between-two-busbars-substation Credit- EEE - Electrical Engineering Portal. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed.

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... Read more

The post Execution of a Turnkey Substation Project: How not to step on the same rake again appeared first on EEP - Electrical Engineering Portal.

View more at: https://electrical-engineering-portal.com/execution-turnkey-substation-project Credit- EEE - Electrical Engineering Portal. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed.

Comprehensive Guide to Transformer Specification: Ensuring Compliance with IEC 60076 – Part 1

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

The post Comprehensive Guide to Transformer Specification: Ensuring Compliance with IEC 60076 – Part 1 appeared first on EEP - Electrical Engineering Portal.

View more at: https://electrical-engineering-portal.com/guide-to-transformer-specification-compliance-iec-60076-part-1 Credit- EEE - Electrical Engineering Portal. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed.

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,... Read more

The post Technical Documentation for a Turnkey Substation appeared first on EEP - Electrical Engineering Portal.

View more at: https://electrical-engineering-portal.com/turnkey-substation-technical-documentation Credit- EEE - Electrical Engineering Portal. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed.

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

The post How to configure medium voltage switchgear: Key influences and stress variables appeared first on EEP - Electrical Engineering Portal.

View more at: https://electrical-engineering-portal.com/how-to-configure-medium-voltage-switchgear Credit- EEE - Electrical Engineering Portal. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed.

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... Read more

The post Interlocking for 380kV GIS Substation: Insights into CB and isolator test and service positions appeared first on EEP - Electrical Engineering Portal.

View more at: https://electrical-engineering-portal.com/interlocking-380kv-gis-substation-cb-isolator-test-service-positions Credit- EEE - Electrical Engineering Portal. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed.

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... Read more

The post Design of Emergency Diesel Generator Control Circuit Logic for Integration with the Utilities appeared first on EEP - Electrical Engineering Portal.

View more at: https://electrical-engineering-portal.com/design-emergency-diesel-generator-control-circuit-logic Credit- EEE - Electrical Engineering Portal. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed.

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

The post Good operating practices for switchgear circuit breakers and contactors appeared first on EEP - Electrical Engineering Portal.

View more at: https://electrical-engineering-portal.com/good-operating-practices-switchgear-circuit-breakers-contactors Credit- EEE - Electrical Engineering Portal. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed.

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... Read more

The post Interlocking for 380kV GIS Substation: One-and-a-half breaker scheme analysis appeared first on EEP - Electrical Engineering Portal.

View more at: https://electrical-engineering-portal.com/interlocking-380kv-gis-substation-one-and-a-half-breaker-scheme-analysis Credit- EEE - Electrical Engineering Portal. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed.

The issue of a proper phase sequence (CW or CCW) on electric motors and generators

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 you want it, just rewire two... Read more

The post The issue of a proper phase sequence (CW or CCW) on electric motors and generators appeared first on EEP - Electrical Engineering Portal.

View more at: https://electrical-engineering-portal.com/proper-phase-sequence-cw-ccw-electric-motors-generators Credit- EEE - Electrical Engineering Portal. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed.

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... Read more

The post Maintenance Practices to be Followed for On-Site Generator Overhauling appeared first on EEP - Electrical Engineering Portal.

View more at: https://electrical-engineering-portal.com/maintenance-practices-on-site-generator-overhauling Credit- EEE - Electrical Engineering Portal. Distributed by Department of EEE, ADBU: https://tinyurl.com/eee-adbu
Curated by Jesif Ahmed.