Thomson Induction Wattmeter, Form C (1897) Previous
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This model was the first induction meter made by GE. This meter had separate magnetic structures for voltage and current coils and used an aluminum cylinder for the rotor (similar to the one found in Fort Wayne meters). A disk with permanent magnets was used for braking as in the T.R.W. meters. This meter was replaced the following year by the Form C-4. Thomson Induction Wattmeter, Form C
GE singlephase metering course pamphlet