Auxiliary winding for driving electric meter accessories

Details Auxiliary winding for driving electric meter accessories Auxiliary winding for driving electric meter accessories

1985-03-14

1986-09-09

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Eddy current rotor

324 55, 324126, 340646, G01R 3102, G01R 3106, G08B 2100

Patent

active

046111670

ABSTRACT:
A flux shunt includes a pickup plate parallel to, and closely spaced from, an outer surface of a voltage stator winding of a voltage stator for an electric meter drive apparatus. A flux-return tab of the flux shunt passes through an auxiliary coil and enters a flux-return slot in the voltage stator core of the voltage stator. The flux-return tab is biased into intimate mechanical contact with a surface of the flux-return slot both to prevent buzzing and to provide a low-reluctance return path for flux picked up by the pickup plate. The return flux, passing through the auxiliary coil induces a voltage in windings thereof for powering meter accessories such as, for example, a light-emitting diode whose illunination is indiciative of excitation of the core material of the voltage stator.

REFERENCES:
patent: 1901701 (1933-03-01), Coffin
patent: 2613260 (1952-10-01), Stevens

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