Archive for the ‘Power quality’ Category

Wide Area Power System Protection

July 27th, 2018 | Make a comment | Posted in Power quality

megaphone-redOne of the member of the Electrical Engineering Community blog sent us an article this week about Wide Area Monitoring System In Electric Power Systems.

We thought that it would raise your interest so enjoy your reading!

Introduction

The growth of electrical power systems is a challenge for Energy Management Systems to ensure a safe and reliable operation. (more…)

Overcurrent protection function

July 9th, 2018 | Make a comment | Posted in Power quality
Figure 1 Directional and non-directional protection is a single feeded power system

Figure 1 Directional and non-directional protection is a single feeded power system

Current protection

Current protection schemes are integrated into power system designs to protect the power system components from the excessive withdrawal of current and short-circuit currents. Excessive overcurrents could occur on many different power system components such as motors causing hazards if not cleared within the safe time frame.
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Why AC over DC? (Debate/Essay)

June 19th, 2018 | Make a comment | Posted in Power quality

ac-dc-debate-essay

War of Currents?!! Does it mean something to you? This is the name of a battle took place between Nikola Tesla and Thomas Edison. We all know those great inventors, but let’s talk briefly about each of them.

Then I, Yasser one of the member of the Electrical Engineering Community Blog, will tell you why I’d place AC over DC. Please comment so that I can know more about what you think about it.
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How can you select the proper busbar?

June 4th, 2018 | 2 Comments | Posted in Power quality

Before getting into details regarding the selection of busbars many questions should be answered first. What’s busbar? What’s the difference between busbar and feeder? Where is busbar used? What are the advantages and disadvantage of using busbars?

Let your fellow electrical engineer Yasser tell you more about it :)

Copper busbars in a distribution panel

Figure.1 Copper busbars in a distribution panel | image: dpfabs.co.uk

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MV/LV substation: selection of power transformers

March 20th, 2018 | Make a comment | Posted in Power quality

The transformer is the most vital component of a grid-station. Poor evaluation and improper choice of power transformers can wreak havoc on the operational parameters and eventually result in catastrophic events.

power transformer substation installation

power transformer substation installation

The selection of suitable transformer is always an integral part of substation design and separate consultants are often hired for the purpose.

This is the topic that K. sent our team several days ago. He chose to tell you in detail the operational requirements and parameters followed for sanctioning a suitable transformer for a substation.

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