Westinghouse alternating current induction motor
date: label: date made
content: 1888
name: label: associated person
content: Tesla, Nikola
label: maker
content: Westinghouse Electric & Manufacturing Co.
notes: label: Description (Brief)
content: Tesla 2-phase motor marked "M-74". Frame has "M-74" painted on it. Case has radial heat-dissipating fins. Connection is made through two binding posts on base. This motor is identical to catalog number 311854, and is also known as the Westinghouse Model A Induction Motor, or Tesla Motor of 1888. This was the first commercial AC motor.
label: Description (Brief)
content: An electro-dynamic rotation motor designed by Nikola Tesla, without commutator or contact brushes. A series of field magnets are built of laminated sheet iron and wound with two sets of coils. The armature core is of the Siemens drum type, wound with comparatively few turns of wire. Two AC currents are sent through the field at the same time, one a 1/4 phase behind the other. References: Electrical World vol. 12, 1888, page 221-222; Westinghouse Engineer, Jan 1950, page 72.
setName: label: See more items in
content: Work and Industry: Electricity
label: Exhibition
content: Electric Breeze
label: Exhibition Location
content: National Museum of American History
creditLine: label: Credit Line
content: from Princeton University, Dept. of Electrical Engineering, thru Dean Howard Menand
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: EM.318547
label: catalog number
content: 318547
label: accession number
content: 232729
objectType: label: Object Name
content: Motor
label: Object Name
content: electric motor
label: Other Terms
content: Motor; Motors and Generators
physicalDescription: label: Measurements
content: motor: 10 1/2 in x 7 in x 8 in; 26.67 cm x 17.78 cm x 20.32 cm