Duncan Type MF-A Wattmeter, circa 1937
01
Artifact Overview
In the late 1800s, companies that supplied electricity to consumers needed a way to measure how much customers used -- and then charge them accordingly. Inventive electrical engineers developed various methods to measure electric power. Induction meters that employed magnetic fields to rotate a disc or cylinder to register energy usage would become the standard. Continued improvements made these wattmeters more compact and reliable.
Artifact Details
Artifact
Wattmeter
Date Made
circa 1937
Place of Creation
Location
Not on exhibit to the public.
Object ID
38.327.2
Credit
From the Collections of The Henry Ford. Gift of Duncan Electric Mfg. Company.
Material
Metal
Glass (Material)
Color
Gray (Color)
White (Color)
Black (Color)
Gold (Color)
Dimensions
Height: 8 in
Width: 6 in
Length: 2.5 in
Inscriptions
on face:
DUNCAN/ 5 AMP. 2 663 754 60/ 120 VOLT TYPE MF-A SINGLE PHASE WATTHOUR METER/ 2 WIRE KH 1/3/ DUNCAN ELEC. MFG. CO. LAFAYETTE IND. U.S.A.
on readout:
KILOWATT HOURS
on lower plate:
LINE LOAD
on back:
103546
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