General Electric Thomson Two-Rate Recording Wattmeter, circa 1900

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Artifact Overview

In the late 1800s, electrical engineers developed a two-rate wattmeter that could record power consumption during high and low demand periods. This device allowed companies that supplied electricity to offer a cheaper rate during off-peak hours. By charging a lower rate, power suppliers hoped to increase usage during slack times and operate their machinery more profitably at maximum efficiency.

Artifact Details

Artifact

Wattmeter

Date Made

circa 1900

Location

Not on exhibit to the public.

Object ID

29.115.13

Credit

From the Collections of the Henry Ford. Gift of Buffalo, Niagara & Eastern Power Co.

Material

Metal
Glass (Material)

Color

Black (Color)
White (Color)

Dimensions

Height: 14 in
Width: 9 in
Length: 9 in

Inscriptions

on readouts: THOMSON RECORDING WATT METER/ GENERAL ELECTRIC CO. U.S.A./ MULTIPLY BY 5 on plate: THOMPSON RECORDING TWO-RATE METER/ CONTNUOUS CURRENT/ NO. 278630 TYPE M/ CLASS 25 500 FORM RUN/ MAR. 4 '91 / [...]/ JAN. 25 '98/ GENERAL ELECTRIC CO. SCHENECTADY N.Y. U.S.A.
General Electric Thomson Two-Rate Recording Wattmeter, circa 1900