Smart Home and Energy Efficiency

May 3rd, 2017 | Make a comment | Posted in Energy Efficiency - building

megaphone-blueLike any other product or service nowadays, smart homes technology was part of science fiction stories. In May 6, 1950 Ray Douglas Bradbury first published his science fiction story “August 2026: There Will Come Soft Rains”. He just had a look in future and imagined how will homes look like in future and how will them be smart and interactive with surrounding conditions.

Although Ray’s prediction was perfect, the human development was faster than his expectation as smart homes became common few years ago.

Smart homes: why were they developed?

Smart homes were developed for two main ideas:
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3 Different ways to improve Power Factor

May 2nd, 2017 | Make a comment | Posted in Power quality
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H. is a fresh graduate from Dubai. Read her review about how to improve Power Factor. She gives you 3 ways to do it and it’s a nice back to basics type of article. Enjoy!
improve Power Factor

Power factor is a very common term in electrical applications because it determines the efficiency of an electrical system. It is a word that you will only hear when dealing with AC circuits as shown by its simple formula:

power factor formula
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Bad Electrical Practices (Part 1)

April 20th, 2017 | 2 Comments | 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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