Apparatus and method for shielding a toroidal current sensor

Details Apparatus and method for shielding a toroidal current sensor Apparatus and method for shielding a toroidal current sensor

1996-12-13

1998-10-27

Gellner, Michael L.

Inductor devices

With electric and/or magnetic shielding means

336229, 336174, 336 83, H01F 2736, H01F 3820, H01F 2728

Patent

active

058282823

ABSTRACT:
A toroidal current transformer magnetic shield includes, in one form, a cup portion and a cap portion. Both the cup and the cap are C-shaped, and when the cap is placed over the cup, the cup and cap define a toroidal sensor chamber. The cup portion and the cap portion are constructed of magnetically permeable material, such as iron or steel. A toroidal current transformer is positioned within the sensor chamber, so that the cap and cup enclose, and magnetically shield, the toroidal current transformer.

REFERENCES:
patent: 3996510 (1976-12-01), Guichard
patent: 4611191 (1986-09-01), Souchere
patent: 4623865 (1986-11-01), Kissel et al.
patent: 5066904 (1991-11-01), Bullock

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