Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Plural inputs
Patent
1997-08-01
2000-03-28
Ballato, Josie
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Plural inputs
324103R, 324104, 324116, G01R 700, G01R 1163, G01R 522, G01R 138
Patent
active
060436425
ABSTRACT:
An electrical utility meter includes measurement error diagnostic capabilities with intelligent communication capabilities. In an exemplary embodiment, the present invention includes an electrical utility meter for measuring energy consumption by a load. The electrical utility meter includes, sensor circuitry, a conversion circuit, a communication circuit, and a controller. The sensor circuitry connects to a meter socket. The meter socket connects to a plurality of power lines that, in turn, connect the load to a source of electrical power. The source of electrical power provides power to the load in a plurality of phases. The sensor circuitry generates voltage and current measurement signals representative of the voltage and current waveforms on the plurality of power lines. The conversion circuit is connected to the sensor circuitry and generates a power consumption measurement, as well as measured phase angle data for the plurality of phases, all of which are generated based on the voltage and current measurement signals. The communication circuit is connected to a remotely located control device. The controller is connected to the memory, the communication circuit, and the conversion circuit. The controller is operable to receive measured phase angle data for the plurality of phases, periodically perform a plurality of diagnostic tests using the measured phase angle data to determine whether a measurement error is present, and provide an alert signal to the communication circuit if a measurement error is present. The communication circuit, upon receiving the alert signal, is operable to obtain information identifying the measurement error and transmit an error signal containing information identifying the measurement error to remotely located control device.
REFERENCES:
patent: 3937890 (1976-02-01), Blethen
patent: 4008458 (1977-02-01), Wensley
patent: 4302750 (1981-11-01), Wadhwani et al.
patent: 4315251 (1982-02-01), Robinson et al.
patent: 4345311 (1982-08-01), Fielden
patent: 4442492 (1984-04-01), Karlsson et al.
patent: 4455453 (1984-06-01), Parasekvakos et al.
patent: 4509128 (1985-04-01), Coppola et al.
patent: 4578536 (1986-03-01), Oliver et al.
patent: 4697182 (1987-09-01), Swanson
patent: 4707852 (1987-11-01), Jahr et al.
patent: 4713837 (1987-12-01), Gordon
patent: 4833618 (1989-05-01), Verma et al.
patent: 4856054 (1989-08-01), Smith
patent: 4884021 (1989-11-01), Hammond et al.
patent: 4902965 (1990-02-01), Bodrug et al.
patent: 5006790 (1991-04-01), Beverly, II et al.
patent: 5056107 (1991-10-01), Johnson et al.
patent: 5248935 (1993-09-01), Sakoyama et al.
patent: 5381462 (1995-01-01), Larson et al.
patent: 5448229 (1995-09-01), Lee, Jr.
patent: 5469049 (1995-11-01), Briese et al.
patent: 5473322 (1995-12-01), Carney
patent: 5537029 (1996-07-01), Hemminger et al.
patent: 5544089 (1996-08-01), Hemminger et al.
patent: 5590179 (1996-12-01), Shincovich et al.
patent: 5619192 (1997-04-01), Ayala
patent: 5621629 (1997-04-01), Hemminger et al.
patent: 5631554 (1997-05-01), Briese et al.
Anderson Michael K.
Bond Randal K.
Grisham Gregory A.
Martin Warren T.
Watson William James
Ballato Josie
Hollington Jermele M.
Siemens Power Transmission & Distribution Inc.
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