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Category 'Medium Voltage' - Technical Articles

The “Medium voltage” category is dedicated to technical articles about medium voltage, up to 35,000 V. This includes topics such as MV switchgear and its equipment (circuit breakers, disconnectors, earth disconnectors, protection relays, CTs, VTs, contactors, LV compartment, etc.), as well as testing and commissioning of MV switchgear. Special attention is given to testing and maintenance and challenges that engineers often face during the commissioning process.

Medium Voltage

Brainstorming the 24kV Switchgear Schematics (Secondary Wiring and Automation)

This comprehensive guide serves as your master blueprint for decoding 24kV switchgear schematics. While the primary focus of this guide is the secondary wiring and automation schematics, we will break down the system layer by layer, starting with the System…...

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May 04, 2026 | By

Brainstorming the 24kV Switchgear Schematics (Secondary Wiring and Automation)
Energy and Power

A Practical Guide to the Operation of Ring Main Units

Ring Main Units are compact modules that are gas-insulated and sealed, comprising main switching devices and ancillary components to ensure continuous secondary power distribution. The precise arrangement and configuration of components always depend on the particular application and loading conditions…. Read more

Dec 08, 2025 | By

A Practical Guide to Operation of Ring Main Units
Energy and Power

Are your switchgear and electrical room safe?

What is safe when it comes to an older electrical equipment and internal-arc flash in electrical room. Substation operators generally assume that with the covers and doors closed, the switchgear is in a totally safe work condition. This technical article… Read more

Jul 07, 2025 | By

Are your switchgear and electrical room safe?
Energy and Power

Design Engineering For Battery Energy Storage Systems: Sizing, Selection and Operation

In this technical article we take a deeper dive into the engineering of battery energy storage systems, selection of options and capabilities of BESS drive units, battery sizing considerations, and other battery safety issues. We will also take a close…...

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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.
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Jun 10, 2024 | By

Design Engineering For Battery Energy Storage Systems: Sizing, Selection and Operation
Energy and Power

BESS (Battery Energy Storage Systems) in LV and MV Power Networks: Practical Guide

This article aims to inform the reader about the applications, procurement, selection & design, and integration of BESS (battery energy storage systems) into LV and MV power networks. The intended audience is project and design engineers who shall perform procurement…...

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May 27, 2024 | By

BESS (Battery Energy Storage Systems) in LV and MV Power Networks: Practical Guide
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
Low Voltage

How to design the power supply for data centres and airports while megawatts of loads rise fast

The first choice for service and distribution voltage is almost always 480 volts. Why is that? Well, it’s because it’s traditional, it has a safe design and specifications are already written around 480 V. UPS and backup aggregate equipment are…...

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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.
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Dec 26, 2022 | By

How to design the power supply in data centers and airports while megawatts of loads rise fast
Low Voltage

Failure cases of LV/MV electrical equipment and what should have been done (to avoid them)

Generally, the useful life of power system components heavily depends upon the level of care given to them and their duty cycles. For example, a circuit breaker on mainly switching duty can last 40 to max. 50 years. The majority…...

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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.
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Dec 19, 2022 | By

Failure cases of LV/MV electrical equipment and what should have been done (to avoid them)


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