Power system: mid and long term stability

September 22nd, 2017 | Make a comment | Posted in Power quality
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system stability curve

One of the most important features of an electrical power system is stability. An electrical power system must be stable within the predefined limits against different types of disturbances.

That is the topic that Yasser (one of the members) chose to deal with. If you want to be published in the blog too, send us a mail

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Wireless Power Transfer (WPT)

September 11th, 2017 | Make a comment | Posted in Electrical distribution

New article kindly sent by one of our loyal members of the community: Yasser.

Send us a mail if you want to publish in the blog too!


Figure 1 Basic elements of Wireless Power Transfer


In electrical distribution practices, cables form a considerable part of the project at different aspects such as installation time and cost. It’s common to find cables prices exceeds more than 50% of the project budget.
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Batteries: which are the best? (comparison)

September 7th, 2017 | Make a comment | Posted in Others

megaphone-red Now, let your fellow electrical engineering Milan continue his journey with aircraft batteries and their capabilities. He’s going to describe what is the main difference based on matching their characteristics.

In todays modern aircrafts nickel cadmium and lithium ion cells are often in use. The old type of lead-acid batteries in commercial use.

Matching diagrams of capacity and other characteristics. Which batteries are the best? And why?

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Medium voltage DC configuration and control

September 4th, 2017 | Make a comment | Posted in Electrical distribution

The distribution is the final stage of carrying electricity from the transmission system to consumers. The distribution substations are connected with transmission lines and the voltage reduced to medium voltage through the transmission systems as shown in Fig1.


Fig 1.Configuration of electricity network

Through this article, one of the members of the Electrical Engineering Community blog Yasser wants to focus on DC medium voltage stage which ranging between 2KV and 35KV.

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UPS Types and Sizing

August 1st, 2017 | 1 Comment | Posted in Electrical distribution
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Hello eveybody, it’s Yasser and I’m back with a guest post. I have questions for you:

Have you ever been angry for losing some data while working on your PC and a power outage occurs? Have you ever imagined what will happen if some main servers of the internet had power outage?

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