Wye service power meter

Details Wye service power meter Wye service power meter

1995-09-01

1997-11-25

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Polyphase

324142, 364483, G01R 2106, G01R 1140

Patent

active

056916345

ABSTRACT:
A device for monitoring power in a wye power service having three phases includes a sampling element arranged and configured to sample a current value and a voltage value from each of the three phases. A processor, coupled to said sampling element, calculates power either (i) by using the current value and the voltage value for the at least one phase when the voltage value for the at least one phase is available, or (ii) by using the current value for the at least one phase and the voltage values for the other two phases if the voltage value for the at least one phase is unavailable.

REFERENCES:
patent: 4595988 (1986-06-01), Chiffert et al.
patent: 4896106 (1990-01-01), Voisine et al.
patent: 5059896 (1991-10-01), Germer et al.
patent: 5301121 (1994-04-01), Garverick et al.

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