Bad Electrical Practices (Part 1)

April 20th, 2017 | 1 Comment | Posted in Others
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megaphone-yellowNo one among us could consider a life without electricity. From social media to the entertainment industry and from the healthcare to educational institutions – its electricity alone that is powering wonders for us.

However, we seldom pay attentional to the health and integrity of our domestic electrical systems. The situation is much better at the commercial level and industries as they usually operate with dedicated manpower and resources for taking a good care of their LV, MV or HV electrical distribution system.

That’s the topic that your fellow electrical engineer B.Q. chose to tell you about today. Enjoy and comment!
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Ground Fault Protection

April 18th, 2017 | Make a comment | Posted in Electrical Safety
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What about a new article from our fellow electrical engineer Jesús Pérez Díaz? Today he tells you about Ground fault protection so if you’re interested in this topic, enjoy!

And if you have knowledge to share about it, write a comment or an article. You just need to send us a mail.

Circuit Breaker Ground fault relay

ABB Circuit Breaker & Ground fault relay | image: ndu.cl

Introduction

Statistics have shown that electrical faults involving Ground are more likely to occur than any other one. A ground fault happens when any of the phase conductors (also known as: hot, live, and line) gets on contact to ground or any grounded part such as a grounded motor frame. It could take place because of a reduction of insulation, cable damage, overvoltage, an accident originated by people or incorrect wiring, and bad equipment operation.
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Protection against voltage spikes in LV systems

April 13th, 2017 | Make a comment | Posted in Electrical Safety

As a warrior can’t fight without his shield an electrical system can’t withstand without a well-designed protection system. So protection is a must in any power system, and it’s applied at all voltage levels and for personnel or equipment protection and many other purposes. We can categorize protection according to the event leading a protection device to operate, such as overcurrent protection, earth fault protection, overvoltage protection and many other events.

Fig.1 Voltage spike effect on system voltage

Fig.1 Voltage spike effect on system voltage

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From College to Work: The Jump of an Electrical engineer

April 10th, 2017 | Make a comment | Posted in Others
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As you already know, we love to publish testimonies or career stories from fellow electrical engineers. Today, here’s Bernardo’s story. He tells us about his experience from college to work as an Electrical engineer which is not always easy. Enjoy and comment!

“Starting your professional life in a working site as an Electrical Engineer is mentally challenging, because you work on an environment that you are not familiar with, and you are surrounded by veterans of many areas thinking that you’re only a fresh kid straight out of college.

And they are right!

Gas Insulated Switchgear Example

Example of a Gas Insulated Switchgear

This being said I’m a part of the assembling and commissioning team of GIS (Gas Insulated Switchgear) and commissioning of AIS (Air Insulated Switchgear) in Siemens S.A Portugal.”
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12 common errors in an Electrical Installation (and solutions)

April 3rd, 2017 | Make a comment | Posted in Panel Building
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Here’s the second article of Patricia, who wants to list 12 errors which are very common and that occurs far too often during installations.

To her opinion, they should be avoided for the security of people and equipment. See the 12 most common errors below (and their solutions)!

electrical installation 12 most common errors

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