Westinghouse Shallenberger ampere-hour meter, ca. 1897

Contributed by Maine Historical Society

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This early electrical meter was based on the principle of rotating magnetic fields within the coil of the meter, those fields being used to turn the wheels of the meter in order to measure the amount of electric charge flowing through, and it worked equally well for direct current and alternating current systems, but did not account for load and did not work well with motors.

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Title: Westinghouse Shallenberger ampere-hour meter, ca. 1897
Creator: Westinghouse Electrical & Manufacturing Co.
Creation Date: circa 1897
Subject Date: 1897
Media: Metal, glass
Local Code: 2004.090.0553
Collection: Central Maine Power Co.
Object Type: Physical Object

For more information about this item, contact:

Maine Historical Society
489 Congress Street, Portland, ME 04101
(207) 774-1822
http://www.mainehistory.org

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