Impacts of Voltage Dips on Power Quality Problems

July 28th, 2014 | Make a comment | Posted in Power quality
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Hey it’s Steven Mill, I haven’t been posting articles for a long time, but I’m back and today I want to tell you about voltage dips and which problem they cause. Hope you’ll enjoy it!

What is a Voltage Dip?

Under European Union standard EN 50160, the internationally adopted definition of voltage dip says that a voltage dip occurs when the power voltage drops below 90% of the standard voltage level for a minute or less. This decrease in RMS voltage, to be exact, lasts from half a cycle to several seconds.

A voltage dip is not a power interruption because power supply is not interrupted during its occurrence.

Impacts of Voltage Dips on Power Quality Problems 1

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Contactors and Electric Control Panels

July 25th, 2014 | Make a comment | Posted in Panel Building
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Andrei is one of our newly members who likes to send us articles. This time, read his essay and feel free to comment.

There is often the situation when an operator needs to turn on or off a piece of machinery which presents a high load on the electrical circuit. Some examples could include big pool pumps, industrial lathe machines or heavy hangar automatic doors.

To switch on such high currents is not an easy task and this is where contactors come into play. These are high current Normally Open relays with protection against arcs and designed for specific applications. Contactors can have many poles in order to control many loads from the same switch or to control 3 phase circuits.

Like any relay the contactor will have a coil that when energized will close the circuit shunting the contacts. Depending on contactor the energizing voltage will differ and can be DC or AC. It is important to note that most contactors don’t offer over-current protection. The ones that incorporate such protection are usually referred to as motor starters.

Contactors and Electric Control Panels
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Perpetual Motion Machines Generating Perpetual Electricity – The Real Truth

July 22nd, 2014 | Make a comment | Posted in Others
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One of our members sent us this article after reading our proposition in the last newsletter. Check it and give your impression. You can send us all type of articles by mail.

Introduction

“A perpetual motion machine is a kind of machine that runs without consuming any sort of energy or fuels, and in most cases, it is in turn believed to produce mechanical energy which could then be converted into electrical energy, known as perpetual electricity.”

Everyone knows that the earth has only finite resources, and one day or the other, they are going to deplete. No one can deny this fact. Even more so, the ever increasing population coupled with numerous industries, that are using the very limited natural fossil fuels to propel their own growth, in the mask of developing a nation’s future, will of course, never want to let us know this dreadful truth.

But, many centuries ago, even before the industrial revolution began, wise men have already anticipated what was in store for the future generations. They were already thinking of the future ahead and were determined to create machines that wouldn’t use any kind of fuel or energy to work, but in fact, produce energy for free, and that too for eternity! Thus, the idea of perpetual motion machine (PMM) came into existence.

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Single Atom Light Switches

July 15th, 2014 | Make a comment | Posted in Others
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Hi there, it’s Steven Mill! Check my last article and feel free to give your impressions.

Introduction

Technological advancements have urged the humans to explore a variety of new research and development arenas. Subject specialists and field engineers are committed to explore and probe each and every aspect of the universe. They are determined in making such discoveries possible that are of maximum benefit to mankind.

In the same quest of making almost every phenomenon discernable as well practically utilizable, researches and experiments have been conducted on Single atom light switches.

What is a single atom light switch?

Quantum scientists have been trying hard for the past few decades in bringing about such a technology that thoroughly manipulates the laws of quantum mechanics for their own operation and benefit. Development of a single atom light switch is an extension of this phenomenon.

The basic principle behind single atom light switches is to make use of single atoms and light particles (photons of light). So, it could be said with surety that the combination of a single atom and light particles existing in the form of photons gives rise to a unique entity that is termed as ‘single atom light switch’.

Single Atom Light Switches
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Standby Backup Generators

July 11th, 2014 | Make a comment | Posted in Electrical distribution
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Our newest active member Andrei wanted to tell you about backup generators, will you have something to add? Comment below.

Introduction

In areas often hit by severe weather conditions there are frequent power outages which can disrupt the normal activities of residents and affect their living conditions and comfort. A power outage can have even more dangerous consequences in public institutions like medical facilities, train stations and office buildings. Imagine being in a skyscraper office building when a power outage occurs and having no light to indicate exits.

Standby backup generators are used to solve this problem by providing backup power to selected circuits or the entire circuit until the main power supply is restored. This allows for certain critical elements to continue functioning during the outage period. Depending on their destination generators come in many types and in this article I will focus more on generators intended for homes and residential areas.

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