CATEGORIES

TODAY IN HISTORY

    POTATO CHIPS
    August 24, 1853 - Saratoga Springs, NY

    It has been claimed that the first potato chips were prepared by Chef George Crum, an American Indian, at Moon's Lake House in Saratoga Springs, NY. When railroad magnate Commodore Cornelius Vanderbilt was dining there, he sent his fried potatoes back to the kitchen, complaining they were "too thick." The chef, George Crum retaliated by slicing paper thin strips of potatoes and frying them to a crisp. But Vanderbilt loved these "Saratoga Chips" and they became an instant success.

    NIGERIA $100 LAPTOP FIELD TESTS A SUCCESS
    August 24, 2007 - Nigeria and Brazil

    Field tests of a revolutionary laptop costing $100.00 has proved a success in Nigeria and Brazil opening up the opportunity to help third world countries children catch up with the rest of the world. The laptop has a number of revolutionary innovations and is part of the "One Laptop Per Child" initiative No Moving Parts ( 1GB of flash memory ) instead of traditional hard disc. Super energy efficient Processor AMD 433 MHz with in built graphics card Open Source Linux operating system (OS) free Dual wi-fi antennas with 3 times normal range with mesh networking built in ( peer to peer between laptops ) Low power dual-mode display, which allows toggle between color and black-and-white screens which provides screen reading in direct sunlight in BW mode. Multiple options for charging super efficient battery including hand crank charge, solar panel charge and even a pull-string recharger Sealed waterproof green rubber keyboard. Still and motion capture camera

MEMBER LOGIN

RANDOM QUOTES

  • Until a man duplicates a blade of grass
    by Earth Day, Thomas Alva Edison Inventor

    "...Until a man duplicates a blade of grass, Nature can laugh at his so-called scientific knowledge. Remedies from chemicals will never stand in favorable comparison with the products of Nature, the living cell of a plant, the final result of the rays of the sun, the mother of all life...."
  • The Revolution
    by John Adams

    "...The Revolution was effected before the War commenced. The Revolution was in the minds and hearts of the people; a change in their religious sentiments of their duties and obligations. This radical change in the principles, opinions, sentiments, and affections of the people, was the real American Revolution...."

RANDOM FACTS

  • Salary
    about Steve Jobs

    Steve Jobs' annual salary was $1, just enough to keep company health benefits. Harvard Medical School
    about Eyesight Myth and Fact

    Myth: Staring at a computer screen all day is harmful to the eyes. Fact: Spending the day staring at a screen can tire or strain your eyes, but it will not hurt them. Make sure lighting doesn't create a glare on your screen. When spending long periods at your keyboard, take a break now and then to rest your eyes to reduce fatigue. Also, don't forget to blink. Your eyes need to stay lubricated to feel comfortable.

Electric Transformers :

Choose Your Color :

ARTICLE INFORMATION :

Do you want to know more about electric transformers? Every home and business is affected by transformers. Businesses use them to get the right power they need. Transformers are use in all high tech equipment. Do you want to know the different types?

ARTICLE CONTENT :

The role of electrical transformers is to switch voltage from one value to another; normally from higher to lower voltage or vice versa. They consist of two sets of coils or windings that are connected to a ferromagnetic core. There are two types of coils?the primary and secondary conductors.

A changing current in the primary conductor produces alternating magnetic fields in the core, which in turn multiples the fields and couples most of the flux with the secondary conductor. This incites the alternating voltage or EMF in each of the secondary conductor.

The cores can be customized as toroidal or laminated. The toroidal has several advantages such as producing low magnetic leakage, close flux path, low noise and smaller core size, lighter and more efficient. They have copper wires wrapped around a cylindrical core preventing leakage of magnetic flux. The magnetic flux is not very influential on other components.

On the other hand, the laminated core is composed of sheets of magnetic material that is insulated from one another with a non-conducting material such as varnish, producing a core that decreases electrical losses.

Electrical transformers can be configured in two ways. You can choose single-phase or three-phase. In switching the voltage level, the principle of magnetic induction between coils is to transfer voltage between coils from the electricity that flows through them. The transformers are passive devices that initiates the transformation of alternating current or AC electrical energy from one circuit into another through electromagnetic induction.

Many homes and businesses have transformers to transfer electricity from power plants. The voltage of the transformers at the power plants is normally high. As they reached the substation, the voltage is lowered. When they reached smaller transformer, the voltage is lowered again. The adjustment in voltage is a continuous process, which only stops when the power reaches the useable level.

The inward voltage of electrical transformers is very crucial. There are three general frequencies that are easy to obtain. These are the 50 Hertz, 60 hertz, and 400 hertz. If you are in Europe, the standard power is 50 hertz. In North America, the average power is 60 hertz. The 400 hertz is set aside for high-capacity purposes like aerospace technologies.

In estimating transformers, it is important to consider power specifications such as highest ratings of the next current, the secondary current ratings, highest power rating, the voltage rating, output type and output choices, such as AC or DC.

Transformers come in several types. There are power transformers, current transformers, step down transformers, low voltage transformers, distribution transformer, instrument transformers, general purpose transformers and automatic transformers.

The power transformers have several configurations based on segments and links. The distribution transformer decrease the primary voltage of the electric distribution system so that it can be used by customer. Auto electrical transformers are smaller in size, weigh less and have better voltage stability as well as overload tolerance.

The manner by which the electrical transformers function has changed. They made life easier for people as they transfer power efficient and more economical. The electricity that is available in your house passes through many different transformers before it is usable as a low voltage.

ARTICLE SPONSOR :

  • Relectric
    Are you looking for electrical transformers? We have a great supply of transformers at relectric. We specialize in making custom transformers for you. We have a variety of brands and you will find the right one.

ARTICLE STATISTICS :

  • 4178Article ID :
  • Rudy SilvaOwner :
  • Free Articles / LifetimeArticle Type
  • November 30, 2014Date Added :
  • NeverExpires :
  • 0Average User Rating :
  • 0Total User Votes :
  • 0Reviews :

RATE ARTICLE :

Please rate this link article.
You must be logged in to be able to rate an article.

USER COMMENTS :

No user reviews have yet been made or approved for this article.

You must be logged in to be able to leave a comment.