Electric Motor for Alternating Current

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Description (Brief)
An electric motor was one of the critical components needed to make an electrical power system based on alternating current. Electrical inventor Nikola Tesla developed a revolutionary motor based on electromagnetic induction that featured rotating magnetic fields to drive the central armature. Engineers working for George Westinghouse refined Tesla’s concept and introduced this model A two-phase motor in 1888. The armature core is of the Siemens drum-type, a design intended to minimize the number of wire windings.
date made
Westinghouse Electric & Manufacturing Co.
Physical Description
steel (overall material)
copper (overall material)
overall: 11 1/4 in x 11 in x 8 in; 28.575 cm x 27.94 cm x 20.32 cm
ID Number
accession number
catalog number
Credit Line
from Westinghouse Electric & Manufacturing Co., thru C. F. Wagner
See more items in
Work and Industry: Electricity
American Enterprise
Energy & Power
American Enterprise
Exhibition Location
National Museum of American History
Data Source
National Museum of American History