Archive for the ‘Electrical Safety’ Category

Installing lightning protection system for your facility in 3 Steps (Surge Protection)

August 20th, 2018 | Make a comment | Posted in Electrical Safety

Hello fellows electrical engineers it’s Steven Mill! Let’s get straight to the point; Do you know what will happen if frictions happened between air streams and the humidity in a cloud? I’ll tell you. A huge amount of negative static charges are formed in the lower side of the cloud while as the positive charges are formed in the upper side of the cloud.

Moreover, the buildings have positive charges. Which means there is a voltage difference between the clouds and buildings.

What if this voltage increased till it’s more than 30 KV/cm (the amount needed to break the isolation of air)? Air will be broken down and the charges will be released in a spark to the buildings. Which is known as lightning.

Figure.1 How lightning is formed? | image: dreamstime.com

Figure.1 How lightning is formed? | image: dreamstime.com

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Steps of Installing an Earthing System

August 13th, 2018 | 1 Comment | Posted in Electrical Safety

Hello everybody, I’m Yasser, I am electrical engineer and I often publish in this blog. In one of my articles I said “As only few mille amperes can kill a human in a part of second, safety always is the big concern for electrical engineers and protection systems designing gets much more attention”.

Therefore we are going to continue talking about safety in many articles and this time it is earthing turn.

Figure.1 Electrical System without Earthing

Figure.1 Electrical System without Earthing

In this article I will discuss what earthing is? What is the importance of earthing? And how can we install an earthing system.

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Emergency Electrical Systems in Different Facilities

July 23rd, 2018 | Make a comment | Posted in Electrical Safety

megaphone1Have you ever been in a mall and noticed some lights went off for a while and then came back?! Have you asked yourself why didn’t them just turn off?!

The answer is the emergency electrical system, so in this article Yasser your fellow electrical engineer will discuss briefly some considerations about emergency systems.
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Load shedding: is it time to say goodbye?

July 5th, 2018 | Make a comment | Posted in Electrical Safety

Engineer MB lives in Pakistan and sent us an article about load shedding and load scheduling. He was questionning about: “When will we say goodbye to load shedding?” and kindly accepted to share his thoughts with us.

If you want to share your thoughts, debates, review or any other content related to electrical engineering, send us a mail.

Hi everyone :) I live in Pakistan and I have been working as an electrical engineer for years. If you live in Pakistan, then welcome to the land of load shedding!

load shedding

Pakistan is one of the countries facing worst load shedding in peak summers when everything seems to melt due to severe heat waves. (more…)

Transformer differential protection

June 14th, 2018 | Make a comment | Posted in Electrical Safety

transformer differential protection

Introduction

Transformer differential protection is a protection scheme based on current comparison, it is usually employed to protect two-sided components such as the transformer windings from internal short-circuit currents.
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