Enhanced cost effective method for high current measurements

Details Enhanced cost effective method for high current measurements Enhanced cost effective method for high current measurements

2005-09-06

2005-09-06

Patel, Paresh (Department: 2829)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With coupling means

C338S049000

Reexamination Certificate

active

06940266

ABSTRACT:
An electrical connection between a power source and a threaded aperture in a power device is made by means of a terminal lug and a bolt. In order to measure the current, a second electrical path is made in parallel with the bolted connection, and current in the second path is sensed. The bolt may carry the main current, or an insulating spacer may be used which prevents significant current flow in the bolt. In one embodiment, the parallel current path extends through a conductor arrangement including additional lugs through which the bolt passes, and in another arrangement the parallel path extends through traces of a printed circuit board.

REFERENCES:
patent: 4001684 (1977-01-01), Fritts
patent: 4140961 (1979-02-01), Akamatsu
patent: 4973937 (1990-11-01), Weinstein et al.
patent: 6528960 (2003-03-01), Roden et al.
patent: 6781360 (2004-08-01), Dragoi et al.

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