Three-phase electrical power measurement system

Details Three-phase electrical power measurement system Three-phase electrical power measurement system

G - Physics

01

R

G01R 21/00 (2006.01) G01R 11/06 (2006.01) G01R 11/40 (2006.01) G01R 21/133 (2006.01) G01R 29/16 (2006.01)

Patent

CA 2243226

A measurement system includes a first transformer enclosed within a first housing and magnetically linked to a first cable where the first transformer senses changing current within the first cable and in response produces a first output voltage. A second transformer is enclosed within a second housing and magnetically linked to a second cable where the second transformer senses changing current within the second cable and in response produces a second output voltage. A third transformer is enclosed within a third housing and magnetically linked to a third cable where third transformer senses a changing current within the third cable and in response produces a third output voltage. A measurement circuit is electrically connected to the combination of the first transformer to receive a first input signal representative of the first output voltage, the second transformer to receive a second input signal representative of the second output voltage, and the third transformer to receive a third input signal representative of the third output voltage. The measurement circuit calculates an output value representative of electrical power within the first, second, and third cables in response to receiving the first, second, and third input signals. The measurement circuit is enclosed within at least one of the first housing, the second housing, and the third housing.

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