Differential current sensing bussing method
AssigneeSchneider Electric USA, Inc.
InventorsDennis W Fleege, Chad Mittelstadt, Randall J Gass, Douglas P Vanwaart, Jason Potratz
Life of this patent
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Abstract
The line power and neutral conductors for a circuit interrupter such as a miniature circuit breaker, using ground fault sensing via a current transformer, are arranged as a rigid conductor formed from a flat plate and surrounding and holding an insulated flexible conductor when passing through the Ground Fault Interrupter current transformer. The rigid conductor can provide a shaped current path to maximize the effectiveness of the current transformer.
Claims8
A circuit interrupter device with line power and neutral return power current paths, and an apertured current transformer configured to detect ground fault current anomalies, comprising:
- a substantially rigid conductor surrounding and holding a flexible conductor, the substantially rigid conductor being formed from a flat plate having first and second terminal strips and a wider central portion which has been rolled into a substantially tubular form thereby creating a substantially tubular portion for fitting through the current transformer,
- the substantially rigid conductor and the flexible conductor passing through the aperture of the current transformer inside of the circuit interrupter device.
Dependencies are inferred from the claim text.