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Technical Articles

Power Substation

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

Managing specification and assets 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…...

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Apr 28, 2025 | By

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

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…...

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Apr 14, 2025 | By

MCC Circuit Featuring Auto Re-Closure Relay Functionality
Premium Content

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,…...

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Mar 31, 2025 | By

Four most important power transformer analyses
Power Substation

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

Alarms Coming From the Shunt Reactor You Must Never Ignore (and What To Do)
Power Substation

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

Design of Auto/Manual Changeover Logic Between Two Busbars Within a Substation
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

What is Time Grading in Relay Protection
High Voltage

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…...

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Mar 03, 2025 | By

Execution of a Turnkey Substation Project
Power Substation

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

Technical Documentation for a Turnkey Substation
Power Substation

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

Interlocking for 380kV GIS Substation: Insights into CB and isolator test and service positions


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