Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Phase comparison
Patent
1995-07-31
1997-05-20
Wieder, Kenneth A.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Phase comparison
324142, G01R 106, G01R 2106
Patent
active
056315546
ABSTRACT:
An integral electronic meter system diagnostics package including a microprocessor, storage memory, pre-select series of system diagnostic tests, and recording any results which exceed predefined programmable thresholds, and display means for displaying error and/or diagnostic messages identifying selected diagnostic data and/or errors discovered in the meter tests during a predefined period. The system automatically senses the type of electrical service in which the meter is installed.
REFERENCES:
patent: 4200933 (1980-04-01), Nickel et al.
patent: 4884021 (1989-11-01), Hammond et al.
patent: 4977515 (1990-12-01), Rudden et al.
patent: 4979122 (1990-12-01), Davis et al.
patent: 5059896 (1991-10-01), Gerner et al.
patent: 5302890 (1994-04-01), McEachern et al.
Briese Forrest W.
Fouquet Christophe J. A.
Hyder Charles C.
Lowe Coy S.
Schlarb John M.
Bowser Barry C.
Pojunas Leonard W.
Schlumberger Industries Inc.
Wieder Kenneth A.
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