Alternating current (green curve). The horizontal axis measures time (it also represents zero voltage/current) ; the vertical, current or voltage.
A schematic representation of long distance electric power transmission. From left to right: G=generator, U=step up transformer, V=voltage at beginning of transmission line, Pt=power entering transmission line, I=current in wires, R=total resistance in wires, Pw=power lost in transmission line, Pe=power reaching the end of the transmission line,  D=step down transformer, C=consumers.
Workmen with one of the two Westinghouse alternators used in the original 1891 Ames Hydroelectric AC power installation
Three-phase high-voltage transmission lines use alternating currents to distribute power over long distances between electric generation plants and consumers. The lines in the picture are located in eastern Utah.
Interior view, 1895 Ames powerhouse
A sine wave, over one cycle (360°). The dashed line represents the root mean square (RMS) value at about 0.707.
Overall view of Ames plant, early 20th century
The Hungarian "ZBD" Team (Károly Zipernowsky, Ottó Bláthy, Miksa Déri), inventors of the first high efficiency, closed-core shunt connection transformer
2010 exterior view of Ames Power Station, built 1905.
The prototype of the ZBD transformer on display at the Széchenyi István Memorial Exhibition, Nagycenk in Hungary
Westinghouse Early AC System 1887
(US patent 373035)

The Ames Hydroelectric Generating Plant, constructed in 1890 near Ophir, Colorado, was one of the first (if not the first) commercial system to produce and transmit alternating current (AC) electricity for industrial use and one of the first AC hydro-electric plants ever constructed.

- Ames Hydroelectric Generating Plant

The Ames Hydroelectric Generating Plant and the original Niagara Falls Adams Power Plant were among the first hydroelectric alternating current power plants.

- Alternating current
Alternating current (green curve). The horizontal axis measures time (it also represents zero voltage/current) ; the vertical, current or voltage.

1 related topic

Alpha

Westinghouse Electric Corporation

American manufacturing company founded in 1886 by George Westinghouse.

American manufacturing company founded in 1886 by George Westinghouse.

George Westinghouse, founder
1888 Westinghouse brochure advertising their Alternating system
Share of the Westinghouse Electric and Manufacturing Company, issued March 31, 1910
1924 book on protective relays for AC and DC electrical systems by the Company
Logo designed by Paul Rand in 1959

Power generation: The company pioneered the power generation industry and in the fields of long-distance power transmission and high-voltage alternating-current transmission, unveiling the technology for lighting in Great Barrington, Massachusetts.

1891 – built world's first industrial AC system (Ames Hydroelectric Generating Plant)