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Power electronics started with the development of the mercury arc rectifier. Invented by Peter Cooper Hewitt in 1902, it was used to convert alternating current (AC) into direct current (DC).
In 1912 the first 110 kV-overhead power line entered service followed by the first 220 kV-overhead power line in 1923. In the 1920s RWE AG built the first overhead line for this voltage and in 1926 built a Rhine crossing with the pylons of Voerde, two masts 138 meters high.
1844 Samuel Morse invented the electric telegraph, a machine that could send messages long distances across wire. 1860’s Mathematical theory of electromagnetic fields published. J.C. Maxwell created a new era of physics when he unified magnetism, electricity and light.
The first utility poles, as we know them today anyway, were erected in the middle 19th century and used to carry telegraph wires. With the rise of electricity usage across the country, utility poles were outfitted with insulators and primarily used to carry power lines.
A German team built a 100-mile alternating-current, high-voltage, three-phase transmission line from a hydroelectric generator to Frankfurt in the summer of 1891. It went many times farther...
The first practical power lines were constructed in the late 19th century during the Industrial Revolution. In 1882, Thomas Edison built the Pearl Street Station in New York City, which was the world’s first electrical generating station.
The U.S. power grid began with Thomas Edison's Pearl Street Station in 1880 and expanded with contributions from visionaries like Nikola Tesla and George Westinghouse. The grid evolved with innovations such as long-distance transmission lines, hydroelectric dams, and smart grid technologies.
Only 125 years ago, electricity was a new and luxurious item, and in less than a century, it’s grown into an incredible and essential system for nation. Three interconnected grids comprised of 450,000 miles of power lines and 160,000 miles of overhead transmission lines bring power to the nation’s homes and businesses.
Learn not only how Tesla and Westinghouse bean Edison in the War of the Currents, but why the AC system is superior to ...more. WHAT IS THIS This animation explores the history and design of the ...
Early Beginnings: Lighting Up the Nation. The U.S. power grid had remarkably humble beginnings. It was December 1880 when Thomas Edison’s Pearl Street Station in New York City ushered in an electrified era with a simple but profound act — lighting up a portion of Manhattan with incandescent bulbs.