Posted on Feb 6, 2014

Thomas Edison developed the incandescent light bulb, which operated from a 110 volt DC source. The primary drawback to DC power was that it could only be distributed over short distances without having to be regenerated. In the early 1900s when Nicoli Tesla was working for Westinghouse, he and Westinghouse found a solution to this problem by developing the

Click here to download the full size of the above Circuit.

first alternating current (AC) generating systems. These systems were advanced over Edison`s DC system, facilitating the transmission of AC power over very long distances. Tesla determined AC power alternating at 60 cycles per second (60 Hertz) to be the most efficient; therefore the Westinghouse systems generated 60Hz AC power. Tesla further believed that 220 volts was the preferred voltage. Due to Edison`s large investment in DC power, he attempted to thwart the advancement of AC power. Edison campaigned that it was unsafe, especially at 220 volts. To win governmental approval, Westinghouse conceded to Edison`s 110 volt standard. Therefore, 110 volts, 60Hz became the early standard for the United States and Canada. Today, the standard single-phase voltages are 120, 208 or 240 volts, with 120 volts at 60Hz found in the wall outlet of homes and offices across North America. Shortly after Tesla`s pioneering work in AC power systems, the AEG Company located in Germany developed its own AC power systems. They originally adopted the 110 voltage, but decided to generate the power at 50Hz because the number 60  did not fit the metric standard. They later decided on a 220 volt standard as they discovered it was more efficient. Since AEG was a large monopoly, their standards quickly spread throughout Europe, with the exception of Britain which did not adopt the European standards until the end of World War II. Today the standard...

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    Electronic Switch ON-OFF
    Burglar Alarm With Timed Shutoff
    100w basic mosfet amplifier
    telephone call voice changer
    Bi-directional motor
    Relay Sequencer Board
    2002 Chevy Cavalier heater/AC temp control wont light up at nite
    Undervoltage delay tripping a circuit
    Automated instrumentation wiring using interference filters