History of DC and AC

Published on March 2017 | Categories: Documents | Downloads: 24 | Comments: 0 | Views: 111
of 2
Download PDF   Embed   Report

Comments

Content

Homework 1

Mallari, Jose Emmanuel P.
ECE - 3

4/23/15

History of DC and AC

In June of 1752, Benjamin Franklin did an experiment with a kite one stormy
night and discovered that lightning was electricity. He was investigating if
lightning was an electric phenomenon. In 1820, Hans Christian Orsted
discovered that electrical current creates a magnetic field. This discovery
made scientists relate magnetism to the electric phenomena.
In 1879, Thomas Edison created the electric light. He enhanced a 50-year-old
thought utilizing lower current power, an enhanced vacuum inside the globe
and a little carbonized fiber, and delivered a dependable and durable
wellspring of light. Around then, the thought of electric lightning was not
new, but rather nothing had been produced that was sufficiently handy for
home utilize. Edison developed a radiant electric light, as well as an electric
lighting framework that contained all the important components to make the
glowing light protected, efficient, and down to earth. Preceding 1879, direct
current (DC) power had been utilized as a part of lighting for the outside.
It was in the 1880's the point at which the cutting edge electric utility
industry started. It was a development from road lighting frameworks and
from gas and electric carbon-curve business frameworks. On September 4th,
1882, Edison exchanged on the world's first electrical force conveyance
framework, giving 110 volts of direct current (DC) to fifty-nine clients, and
the clench hand business force station started working. It was situated in
Lower Manhattan, on Pearl Street. This station gave light and power to
clients in an one square mile range. The electric age had started.
In the late 1800,s, Nikola Tesla started to work with the era, utilization, and
transmission of substituting current (AC) power, which can be transmitted
over much more noteworthy separations than direct current (DC). Tesla, with
the assistance of Westinghouse, conveyed indoor lightning to our homes and
to modern machines.
Westinghouse advanced the conveyance of AC force, and Edison advanced a
DC power framework. The two got into an encounter called "The War of
Currents". Edison expressed that high voltage frameworks were exceptionally
hazardous and Westinghouse replied by saying that the dangers could be
overseen and the advantages were much more noteworthy. The fight
proceeded for quite a while. Westinghouse AC Networks was winning, yet the

ultra-focused Edison made a last endeavor to annihilation his adversary by
enlisting an outside architect named Harold P. Cocoa to perform an open
showing of creatures being shocked by AC power. This exhibit prompted the
innovation of the hot seat to execute censured detainees.

Differences of AC to DC
Advantages to AC
# Thanks to the invention of the Transformer by Tesla, AC power was capable
of traveling at high voltages and low amps, decreasing the loss of power
significantly, however more recently a way to step up and down DC power
has given DC power a chance once again.
# AC power inverts it's polarity at a controllable interval.
# AC power is more simplistically created from mechanical energy
# AC power can instigate a constant magnetic flux such as what is called an
electromagnet.
# Used in nearly all 1st world countries as main power source.
# Can seperate current and voltage for complex circuits.
Advantages to DC
# DC circuits are simplistic and used in many household devices
# Generated chemically, such as with alkaline batteried or hydrogen fuel
cells
# Constant energy source
# Generally no electromagnetic flux
# Can be stepped up and down in voltage
# Low to no impedence
# Current and Voltage are always in Phase

Sponsor Documents

Or use your account on DocShare.tips

Hide

Forgot your password?

Or register your new account on DocShare.tips

Hide

Lost your password? Please enter your email address. You will receive a link to create a new password.

Back to log-in

Close