Self-aligned light load adjustment assembly for induction meters

Details Self-aligned light load adjustment assembly for induction meters Self-aligned light load adjustment assembly for induction meters

1981-06-10

1983-12-27

Strecker, Gerard R.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Eddy current rotor

G01R 1102

Patent

active

044233752

ABSTRACT:
The present invention is for an induction meter having a voltage and a current magnetic section. The voltage magnetic section is comprised of a substantially E-shaped laminated magnetic core having a center leg terminating at a main pole face and two adjacent legs terminating at coplanar auxiliary pole faces on opposite sides of the main pole face, and includes a spacer bracket located between a first side of the voltage magnetic core and a first voltage shunting member. The spacer bracket carries a self-aligned, light load adjustment assembly having a movable tab extending over portions of one of the auxiliary pole faces and the main pole face thereby providing an adjustable magnetic flux shunt path. A second voltage shunting member is located in magnetic proximity to the first side of the core and spaced from the first voltage shunting member by a nonmagnetic spacer. The second voltage shunting member has a fixed tab in magnetic proximity to the other auxiliary pole face and a fixed tab in magnetic proximity to the movable tab. In this manner, the first voltage shunting member, the second voltage shunting member and the movable tab all provide magnetic flux shunt paths.

REFERENCES:
patent: 2352965 (1944-07-01), Mendelsohn
patent: 4213090 (1980-07-01), Keever et al.

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