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Category 'Power Substation' - Technical Articles

Category “Power Substation” is dedicated to technical articles about a subsidiary station of an electricity generation, transmission and distribution system where voltage is transformed from high to low or the reverse using transformers. This also includes primary and secondary distribution, substation installation, testing and commissioning, erection and other important topics.

High Voltage

Fundamental concepts of schematic drawings for true field engineers (hands on HV schemes)

Schematic drawings, also known as electrical or circuit diagrams, are essential tools for understanding and designing electrical circuits. Mastering schematic drawing is a fundamental skill for field engineers, allowing them to effectively troubleshoot, maintain, and modify electrical schemes. This technical…...

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Dec 11, 2023 | By

Fundamental concepts of schematic drawings for true field engineers (hands on HV schemes)
Power Substation

Contract drawings for a power transformer – The checklist you should always follow

This technical article provides a collection of the common drawings that are sent by the manufacturer to the client for approval and reference. The goal of these drawings is to verify that the transformers that are going to be manufactured…...

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Dec 04, 2023 | By

Contract drawings for a power transformer - The checklist you should always follow
Medium Voltage

Capacitor banks in substations: Schemes, relay settings, and protective measures

Let’s discuss capacitor banks, but this time, not the basics. Let’s study the double-star capacitor bank configuration and protective techniques used in the substations. How important is to choose the right current transformer ratio, calculate rated and maximum overload currents,…...

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Nov 27, 2023 | By

Capacitor banks in substations: Schemes, relay settings, and protective measures
Power Substation

Prepare yourself for successful inspection and testing of MV metal-clad switchgear

This article aims to provide a comprehensive analysis of the essential inspection and testing processes, emphasizing their importance in the effective functioning of medium-voltage switchgear. The inspection and testing standards included in this resource prioritize safety, functionality, and efficiency, making…...

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Nov 13, 2023 | By

Prepare yourself for successful inspection and testing of MV metal-clad switchgear
Power Substation

Mastering Interlock Logic and Schemes for a Gas-Insulated Substation (132 kV GIS Example)

As we delve deeper into this article, we will explore the various types of interlocking mechanisms used for Gas-Insulated Substation (GIS), their applications in substations, power plants, and electrical installations, as well as their significance in ensuring the sustained safety…...

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Oct 30, 2023 | By

Mastering Interlock Logic and Schemes for a Gas-Insulated Substation (132 kV GIS Example)
Power Substation

A comprehensive guide to voltage transformer (VT) circuit supervision techniques

Voltage transformer supervision, often referred to as VT fuse fail supervision relay, plays a pivotal role in safeguarding electrical systems. Its primary objective is to detect any potential failure within the voltage transformer (VT) circuit. This raises the important question:…...

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Oct 16, 2023 | By

A comprehensive guide to voltage transformer (VT) circuit supervision techniques
Power Substation

The art of the transmission switchyard design: The physical layout engineering (Case study included)

This article aims to shed some light on the so-called physical engineering activity in switchyard design in conjunction with some engineering computations. The physical layout engineering tackles the plot plan and SLD to optimize the area and coordinate with all…...

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Oct 02, 2023 | By

The art of the transmission switchyard design: The physical layout engineering (Case study included)
Power Substation

Never underestimate how important it is to choose the right CT size in fault detection and protection

In the realm of electrical power systems, current transformers (CTs) play a vital role in accurately measuring and monitoring current levels. Proper sizing of CTs is essential to ensure their adequacy and enable reliable operation within specified limits. This article…...

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Aug 14, 2023 | By

Never underestimate how important it is to choose the right CT size in fault detection and protection


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